bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Corporate Environmental Performance Evaluation Based on Circular Economy
Authors: Zhang Ying
Published: October 2014

The enterprise is the main body of the market economy, impact of business activities on the environment is multifaceted, the effective management of the environmental performance of enterprises is the basis of circular economy construction, social sustainable development implementation. This article is based on theory of circular economy and sustainable development, analysis of existing problems and shortcomings of enterprise performance evaluation, combined with China's reality, discusses the value orientation of corporate environmental performance management and performance evaluation of the target under the Circular Economy , research building enterprise environmental performance evaluation system, in order to provide reference for decision-making and practice of enterprises.
The Study of Steel Industry Ecological Symbiosis Network Construction and Operation Mechanism
Authors: Han Jie Ping , Li Qiu Yue , Chen Jun Ming
Published: October 2014

Based on the theory of industrial ecology,compared to traditional steel industry production process and analyzing steel production material flow、energy flow and technology flow,we build the steel industry ecological symbiosis network. Regarding the steel symbiosis network as a complex system,we systematically analyze its operation mechanism. Analyzing the symbiosis network from its forming condition,we build the steel industry symbiosis network dynamic mechanism model and analyze the dynamic factors,so as to provide scientific guidance and decision making for the construction of ecological symbiosis network.
Study on the Economic Growth and Environmental Pollution Based the VAR Model
Authors: Sun Qing , Deng Jian Gao
Published: October 2014

The long term dynamic relation between economic growth and environment pollution is analyzed by using co-integration analysis and granger causality test, generalized impulse response function and variance decomposition method in Jiangsu Province based on the VAR model, and the related data of Environment pollution and GDP indices are from 1982 to 2012. The results indicate that economic growth to environmental pollution is positive and persistent, but that of environmental policy is negative and weak. This conclusion can provide a great reference value for promoting sustainable economic development and formulating relevant environmental policy for Jiangsu Province. the existence of Kuznets inverted U shaped curve for economic growth and environmental pollution depends on the data from different regions and different indexes measuring the levels of environmental pollution.
Technological Innovation in the Development of Agricultural Eco-Economy in China
Authors: Zhu Peng Yi
Published: October 2014

Agricultural eco-economy has developed slowly due to lack of advanced technologies in China. Technological innovation should become the internal demand of the development of agricultural eco-economy. In this paper, based on the status quo of China’s agricultural development, advanced technologies for the development of agricultural eco-economy including conservation of resource, circular economy, green economy, the measures of system coordination and the assessment of ecological benefits are discussed. It is to point out that resolving these problems should promote progress of agricultural eco-economy and sustainable agriculture.
Research on the Influence of Carbon Trading on Jibei Grid Considering the Co-Ordination of Beijing, Tianjin and Hebei Province
Authors: Wei Zhong Kang , Du Yan Ling , Liu Dun Nan , Xu Yu Jie , Li Yuan Zhuo
Published: October 2014

As the energy and environmental crisis intensifies, controlling total carbon emission in electric power industry has been an important way to achieve the goals of energy conservation and emission reduction. Beijing and Tianjin have lanched carbon trading pilot successively. As a part of the co-ordination, it’s imperative for Jibei to join carbon trading. Controlling the total carbon emission can’t be separated with making carbon initial quota, which will certainly influence generating capacity of generating enterprises in Jibei. Consequently, Jibei grid should purchase more clean electricity in outside province. Firstly, common methods of carbon quota distribution have been introduced in this paper and three scenes of carbon emission reduction have been set. Then, generating capacity in Jibei has been calculated in three scenes, and the influence of purchasing power in outside province on Jibei grid has been analyzed. Result shows that Benchmarking and target constraint are both feasible and allocation scheme can be chosen reasonably based on the actual situation.
Influence of Natural Ventilation on Indoor PM2.5 Concentration in Residential Building
Authors: Zhao Li , Chen Chao , Cao Guo Qing
Published: October 2014

According to PM2.5 contamination in residential building, a mathematical model is established about the effect of natural ventilation on PM2.5 pollution control based on calculus method. On the basis of some actual cases, such as indoor smoking and cleaning, indoor PM2.5 concentration is calculated for different air change rate and outdoor air quality. The concept of critical ventilation rate is provided. The conclusion of the paper provides some advice on natural ventilation and indoor life behavior.
Risk Analysis of Environmental Pollution by Secondary Hydrogen Chloride from Leakage of Phosphorus Trichloride
Authors: Zhang Li , Liu Xu Qing , Li Ya Yun , Yuan Hao
Published: October 2014

This study aims to analyse the influence of the pollution of hydrogen chloride which is the side effect of the leakage accident of a 50m3 phosphorus trichloride tank. When the leakage source intensity is 1.06kg/s with the leakage time of 30 minutes, and the distance is about 2700m away from the highest allowable concentration (0.05mg/m3) in air of residential areas, which goes beyond about the distance of 700m over the "Comprehensive emission standard of air pollutants" (GB16297-1996) table 2 (100mg/m3, new sources of pollution emission limits), however, the mean value of hydrogen chloride concentration beyond 400m is less than the that of IDLH (immediately dangerous to life or health concentration), and no half lethal concentration (LC50) appears. The scope and extent of pollution can be significantly reduced by timely using fire water to eliminate smoke to change hydrogen chloride into hydrochloric acid fog and make them drop in a lower position.
Simulation and Analysis of Noise Control Scheme for Hangzhou Cigarette Factory New Packing Workshop
Authors: Wang Yan Ping , Li Xin Zhong , Wu Yue Chao , Hao Jun
Published: October 2014

Based on the noise test data of existing workshop, the noise of new packing workshop was studied. The effection of several noise control scheme was predicted by simulation and analysis method, and the control scheme five was chose finally ,by which average noise reduction was about 4.5dB,and 8h equivalent continuous A-weighted sound pressure level of the pick-up coil station and packaging machine station was 84.9dB and 83.2dB respectively, the working environment of the new workshop was effectively improved, and the investment was estimated.
Study on the Hazardous Factors Analysis of Welding in Ship Repairing and Building
Authors: Xu Kun Lun
Published: October 2014

The hazardous factors of welding process are analyzed based on the characteristics of ship repairing and building, including falling from high place, objects striking, fire explosion, electric shock, suffocation, burn and harmful substances etc. Through the analysis of the welding operation hazards, finding the hidden danger at work site, it will be efficient to control the happening of welding accidents, reduce the hazard of welding task and promote the safety management level of the ship repairing and building.
Study on the Purification Effect of Chlorophytum Comosum on Indoor Formaldehyde
Authors: Zhao Xiao Guang , Zhang Nian , Shu Hao , Liu Ning
Published: October 2014

In order to investigate the effect of absorption and purification of indoor formaldehyde by chlorophytum comosum under normal circumstance, chlorophytum comosum is used as the test material and formaldehyde concentration of different closure time is measured by indoor formaldehyde velocimeter. Absorptive capacity of chlorophytum comosum on indoor formaldehyde is analyzed by comparing formaldehyde concentration. The results of experiment show that taking closure time of 24h as an example formaldehyde concentration changes from 0.41 mg/m3 to 0.32 mg/m3 and the removal rate is 21.95% in the room of 15 square meters ,and absorption effect of chlorophytum comosum is good for indoor formaldehyde. Combined with the actual situation chlorophytum comosum can be used in the room place and decorative materials with less formaldehyde content are chosen ,and indoor temperature and humidity remain appropriate to purify indoor formaldehyde by combining with the ventilation method.
Survey and Analysis of the Cognition of Urban Residents on the Food Hygiene and Safety in Natural Disasters
Authors: Hong Hai Cheng , Xu Min
Published: October 2014

Multistage sampling method was used to sort all cities, counties and districts in Jilin area, and stratified random convenience was applied to take the samples. According to the number of people in the pre-experiment and the number of questionnaire topics, 700 residents who had lived in the area more than a year were selected. Urban residents in Jilin area could understand the natural disaster-related knowledge and their attention to it should be higher, but their knowledge and behaviors in food hygiene-related knowledge and behaviors in natural disasters were worrying. It is necessary to strengthen the propaganda and education of food hygiene in natural disasters. TV, radio, newspapers and networks are important sources of relevant information and knowledge for the majority of residents. Different means should be taken in the publicity and training of food hygiene-related knowledge in natural disasters according to their education background.
Analysis of the Influence of Racks on High Speed Train Interior Noise Using Finite Element Method
Authors: Wu Di , Ge Jian Min
Published: October 2014

In this paper, the finite element (FE) method was used for simulation of the low-frequency sound field in high speed train compartments. The proposed model was validated using experimental results. The FE models of the train compartments with and without racks were established respectively, and the sound pressure level of the standard point and sound field distribution in these two cases were compared. The results showed that the A-weighted sound pressure level of the standard point was 1.2 dB lower when there is no rack in the compartment.
Solvothermal Synthesis of Size-Controlled Lead Zirconate Titanate Particles
Authors: Zhang Fan , Wang Zhan Jie
Published: October 2014

Nanocrystalline lead zirconate titanate (PZT) powders have been synthesized by solvothermal method, in which a mixed solvent of ethanol and water was used as reactive medium and Pb (NO3)2, ZrOCl2·8H2O, C16H36O4Ti, KOH and NH3·H2O were used as raw materials. It was found that PZT particle sizes decreased from 2 μm to 100 nm with the ratio of Vethanol/Vwater increasing from 1/2 to 2/1 under a KOH concentration of 4 mol/L at 200 °C for 4 h. It indicated that the Vethanol/Vwater of mixed solvent played an important role in controlling the morphology and size of PZT crystals, as well as reaction temperature.
Cleaning Waste Sulfuric Acid from PVC Gas Analysis Scheme Design and Composition Analysis
Authors: Chen Xiao Ling , Gao Kui Yu , Li Cheng
Published: October 2014

HWasu Corporation produces an enormous amount of PVC acetylene gas to wash waste sulfuric acid every year, and the composition of waste acid impurity is complex. The stench restricts the reuse of waste sulfuric acid, This paper establishes the detection scheme which is divide int three parts,respectively: escaping of the exhaust gas, liquid slag washing and washing slag quantitative analysis.Burning waste acid solid content of 11.40%, light component is 97.18%, sulfuric acid content of 79.22%, after washing slag of weight percent is 7.30%, Washing liquid slag quality percentage of 4.10%.Escaping gases mainly contain acetylene, hydrogen chloride, sulfur oxide impurities. Washing slag liquids mainly contain phosphoric acid root, organophosphorus, chloride, calcium, magnesium,iron ions and sulfuric acid root ion. Washing slags mainly contain silicon dioxide, carbon, hydrogen, calcium oxide, magnesium oxide, ferric oxide,and etc. Finally through the balance calculation of data, We can figure out that the experimental data is accurate and reliable for comprehensive utilization of wast sulfuric acid to provide basic theory data.
A Two-Step Method Synthesis and Microwave Absorption Properties of Double-Shell Ni@/BN@BaTiO3 Nanocapsules
Authors: Shi Gui Mei , Zhu Ying
Published: October 2014

BN@BaTiO3 coated Ni nanocapsules were prepared by a two-step method, composed of an arc-discharge and a chemical liquid deposition process. Their microstructure, surface component as well as electromagnetic properties (1-18GHz) were investigated by means of high-resolution transmission electron microscopy, X-ray diffraction, FTIR spectra (FT-IR) and a network analyzer, respectively. The core double-shell Ni@/BN@BaTiO3 nanocapsules exhibit stronger EM absorption properties and the position of absorb peaks move to the low frequency direction in GHz range in the same thickness, compared to that of Ni@/BN. The microwave absorptive mechanisms of BN@BaTiO3coated Ni nanocapsule absorbent were discussed.
Surface Wettability of the Contaminative Silicone Rubber
Authors: Hu Yang Yu , Yu Xiang , Wang Guo Gang , Lu Ming
Published: October 2014

The unique surface wettability of the silicone rubber can reduce substantially the flashover accidents caused by the dust pollution on the insulator. This paper describes the effects of non-soluble dust, salts component, and natural environment on the surface wettability of the silicone rubber. The structure and composition of the contamination on the silicone rubber surfaces were analyzed. The results indicate that the greater amount of non-soluble dust and salt-like component, the more difficult to restore the hydrophobic property of the sample surface, and even lost hydrophobicity; the natural environment had a more complex influence on silicone hydrophobic property. In short, the property of hydrophobicity and the migration of hydrophobicity of silicone rubber, especially the latter, are important reasons for inhibition of flashover on polluted insulator. However, this special behavior of surface wettability of silicone rubber is affected by many environmental factors.
Relationship between Air Pollutants and Visibility in Shanghai during 2006-2010
Authors: Xue Dan , Liu Qian
Published: October 2014

Air pollution has been deteriorated seriously in Shanghai as a result of urbanization and modernization. Visibility reduction is the most apparent symptom of air pollution. This paper aims to describe the characteristics of visibility and air pollutants in Shanghai, and to investigate the relationship between them. Visibility in Shanghai was higher in summer and lower in winter. The mean value of visibility during 2006-2010 was 17.8km. Air pollution in Shanghai was also serious. In 2010, Shanghai got the relative better air quality compared with the former four years. Air pollutants and visibility were negatively correlated. SO2 and NO2 had higher correlation coefficients with visibility than PM10. This suggested that the visibility in Shanghai was mainly due to secondary pollutants.
Study on the Vertical Distribution of Cr in Jiaozhou Bay
Authors: Yang Dong Fang , Wang Feng You , He Hua Zhong , Yang Cheng , Zhu Si Xi
Published: October 2014

Based on investigation dada on Cr in 1982 in Jiaozhou Bay, this paper analyzed the seasonal and spatial distribution of Cr, and revealed the transfer process of Cr. Results showed that horizontal diffusion and vertical sedimentation were major transfer processes of Cr, which were mainly determined by water exchange and gravity settling. These findings were essential to pollution control and environmental remediation in Jiaozhou Bay. From the point of view of pollution control, reducing the discharge of Cr from the sources was the major countermeasure.
Study on Distribution and Source Apportionment of Heavy Metals in Atmospheric Particulate Matter in Gansu, Ningxia and Inner Mongolia Sections of the Yellow River of China
Authors: Ma Xiao Ling , Ren Xiao Qian , Liu Jing Jun , Liu Ying
Published: October 2014

The distribution and source apportionment of 12 heavy metals including Hg, As, Cd, Pb, Cr, Ni, Cu, V, Co, Zn, Mn and Ba in atmospheric particulate matter (APM) at 5 samplings sites from Gansu, Ningxia and Inner Mongolia sections of the Yellow River of China in 2012 year were studied in this paper. The results indicated that Zn had a maximum mean concentration at T5 (Gansu Province), followed by As. The order of average concentrations of all heavy metals was as follows: Zn>Mn>As>Cu>Pb>Cr>V>Ni>Cd>Hg>Co, Ba. According to enrichment factors (EF), only Mn was seriously enriched at all sampling sites, especially at T4, which indicated that anthropic source is dominant and the others were not enriched. The results of cluster analysis (CA) showed that 12 heavy metals from 5 sampling sites were clustered into four different groups at the linkage distance of 10 and they came from a variety of sources such as fuel, fertilizers, agrochemicals and mining.
Application of Cloud Theory and Set Pair Analysis Coupled Model for Evaluating Environmental Carrying Capacity in Tianjin
Authors: Si Qi , Li Ming Chang
Published: October 2014

Following the development of national economy, environmental pollution and ecological hazards has been resulted from the pollutant discharge and reclamation etc. So it is very important for evaluating the environmental carrying capacity for guiding the environmental management and control. In this paper, a systematic assessment model with detailed procedure for environmental carrying capacity is proposed, based on the combination of set pair analysis method and cloud theory. The membership degree function obtained from bell function in cloud theory is used for connection degree function in set pair analysis method. The normalization means of membership degree has advantageous of improving the reasonability of membership space. The calibration results of case study work well in Tianjin Binhai New District. This shows the coupled model has advantages of concision, easy-operation and high precision of set pair analysis method, and the randomness and ambiguity of assessment indexes’ membership can be reflected in the assessment procedure by using the cloud theory, so the assessment results are reliable and practical significance.
The Formation of Coesite under Minimum Static Pressure
Authors: Wang De Jun , Liu Run Ru , Jing Leng
Published: October 2014

Using the α-SiO2 and conducted by high-energy mechanical milling as the initial material, we investigated the synthesis of coesite under high temperature and high pressure in the condition of adding a certain amount of hard Fe fillings. The synthetic samples are measured by XRD and Raman, and the results show that a small amount of small-sized coesite can be obtained under 2.5 GPa. Based on these results, it is considered that the forming depth of natural coesite under the earth is likely to be obviously shallower than that of plate exhumation in the traditional subduction-exhumation hypothesis.
Aeration Settling Process on Treating ASP Produced Water of Oilfield
Authors: Liu Guang Min , Jia Xin , Liu Mei Jun , Zhi Wei
Published: October 2014

The concentration of suspended solid, oil, HPAM, surfactant, sulfide and silicate colloid was investigated by the simulation aeration and settling experiment. The major factors that influenced the content change of suspended solid were also determined in this study to provide reliable basis for the actual process.By the simulation experiment, the main influence factors that changed the concentration of suspended solid in ASP produced water were the precipitation of HPAM
Assessment of the Fe3+-EDTA Complex in UV-Fenton-Like Processes: The Degradation of Methylene Blue
Authors: Wei Chao Shuai , Huang Wen Yu , Zhang Rui Jie , Wang Ying Hui , Luo Li Min , Mo Hua , Xiao Long Huan
Published: October 2014

This study investigated the effect of ultraviolet (UV) enhancement and the Fe3+-EDTA Complex on the degradation of methylene blue (MB) in Fenton-like system. By studying different variables including H2O2 concentration, Fe3+-EDTA concentration and pH value，and using MB as a model pollutant, the best experimental conditions was to investigated. Experimental results showed that it is possible to degrade MB wastewater effectively by modified UV-Fenton with Fe3+-EDTA at neutral pH. Besides, optimality condition (pH= 7, [Fe3+-EDTA] = 2 mmol/L, [H2O2] = 10 mmol/L) which were used in the modified UV-Fenton that achieves a removal of over 95% of the MB in 60 min reaction time. Therefore, this new modified Fenton system is an effective treatment for MB wastewater.
Effects of Butyrate on Autotrophic Anaerobic Ammonium Oxidation (Annammox)
Authors: Li Hang , Zhang Lei , Li Zhi Xing , Chen Xiao Bo
Published: October 2014

Anaerobic ammonium oxidation (anammox) process is a heated researched biotechnology for nitrogen removal in wastewater. The application of the process is limited due to its long start-up time and sensitivity to organic matters. This paper discussed the effects of butyrate on anammox process. The nitrogen removal rate of anammox process was elevated at low butyrate content (1 mmol/L) and decreased at high butyrate content (3 mmol/L). NH4+-N:NO2--N:NO3--N:butyrate ratio was 1:1.25:0.08:0.04 and 1:7.26:0.10:1.85 when butyrate concentration was 1 mmol/L and 3 mmol/L.
Enhanced Dissipation of POPs in Soils by Combined Plants Cultivation
Authors: Luo Jing Hong , Lei Zhi Hua
Published: October 2014

The removal of persistent organic pollutants (POPs) in soils at initial concentrations ranging from 20.00 to 321.05 mg·kg-1 was investigated under different planting patterns, and enhancement mechanisms were analyzed. Results showed that the dissipation of POPs in soils growing Brassica campestris and Medicago sativa significantly exceeded those vegetating single species. During 70-day experiment, about 75.06% of Pyr and 68.22% of BaP was removed from the soils under mixed cropping; while only 31.8% and 64.03% of Pyr and 27.84% and 51.93 of BaP were removed under single rape and alfalfa cropping, respectively. Of all pathways enforcing POPs removal, plant-microbial interactions is the most predominant. These results suggested a feasibility of the establishment of multi-species phytoremediation for improvement of the remediation efficiencies of POPs, which may decrease accumulations of POPs in crops and thus reduce their risks.
Selection of Liaoning Ocean Observation Station Site in Baishawan and Impact Analysis of Shoreline Ecological Environment
Authors: Zhang Han , Lin Jian Guo , Zhang Jun
Published: October 2014

According to the fact that the layout of Liaoning ocean observation stations is not perfect, through the comprehensive research, ocean observation station is sited in Yingkou, Baishawan, and simulates hydropower and the change of tidal flat accretion-erosion in the sea area after engineering to analysis the impact of building ocean observation station on Baishawan inshore. As a result, that ocean observation station is sited in Baishawan and takes oils on land to build an artificial island, hardly change hydropower and sediment accretion-erosion variation in the waters and it has no discernible effect on adjoined sea areas and shorelines. So the building scheme of the engineering has an extremely important meaning on protecting shorelines and natural environment this sea area and carrying out management and supervision.
Study on Photocatalytic Degradation of MG by PW12-TiO2/SiO2
Authors: Wang Xi Quan , Yang Qi Zhe , Fan Shi Ying , Li Yuan
Published: October 2014

To investigate the photocatalytic degradation of MG by PW12-TiO2/SiO2, in this study PW12-TiO2/SiO2 composite oxides were prepared by sol-gel and hydrothermal strategy. The prepared photocatalysits were characterized by XRD, BET,TEM and EDS techniques and the configuration charateristics of PW12-TiO2/SiO2 nanoparticles were systematically investigated. Photocatalytic activity was checked by the photocatalytic oxidation of MG dye in aqueous solution. The results showed that the phosphotungstic acid still has the Keggin structure. The anatase phase of titanium oxid is identified by XRD. The result of the present work implied that compared with pure TiO2, the PW12-TiO2/SiO2 composite oxides have stronger catalytic activity, good particles dispersion and bigger specific surface area. The optimal concentration of MG was 20mg.L-1, the best dosage of PW12-TiO2/SiO2 was 1g.L-1. Moreover, after three times of recycling, the catalyst still has high catalytic activity.
The Study of Organic Bentonite Competitive Adsorption Model for Phenol and Cr6+ Based on MATLAB
Authors: Liu Shang Chao , Zhou Jin Xuan , Xue Gai Feng
Published: October 2014

Competitive adsorption of phenol and Cr6+ in organic bentonite was studied in this paper. To solve the problem of multivariate nonlinear model of competition adsorption for Cr6+ and phenol on organic bentonite, MATLAB was used to process data to get parameter equation. The parameter equation fitting could explain competitive adsorption behavior of phenol and Cr6+ on organic bentonite. According to the fitting equation of 3D graphics,the result was deduced that the higher concentration of Cr6+, the lower the concentration of phenol. Phenol adsorption on organic bentonite is influenced by Cr6+.
A Reactive Nano-Fe/Cu Composite Supported on Expanded Graphite for Nitrate Reduction in Water
Authors: Yue Jun Jie , Wang Yu Ting , Shi Zhao Hong , Liu Juan , Feng Xin
Published: October 2014

A novel bimetallic nanoFe/Cu composite supported on expanded graphite (EG) was prepared through a synthesis procedure that includes consecutive steps of an incipient wetness impregnation method, heat treatment and borohydride reduction. SEM, XRD and ICP-OES were employed to characterize the morphology, crystallinity and metal contents respectively. The SEM images show that the metal particles are spherical and arrange closely but orderly, the particle size is uniform and no larger than 100 nm. The XRD data indicate the composite consists of elementary Fe and Cu deposited on the inert EG. Batch experiments with nitrate show that the composite works efficiently for nitrate reduction in wastewater without pH control. Although nitrite as much as 40% of the degraded nitrate persisted in the reaction system, nitrite as target pollutant has been found to be easily reduced to nitrogen with a selectivity of 99.9% at pH 6 by catalytic hydrogenation. Therefore, the composite EG-Fe/Cu will play an indirect role in nitrogen selectivity. Based on the environmental friendliness and the efficiency on nitrate, both EG and the composite may be considered into the experimental teaching of environmental chemistry course.
Study on Separation of Chlorine in Coal in Combustion Process of Pulverized Coal Injection into B.F.
Authors: Hu Bin Sheng , Zhang Bo , Gui Yong Liang , Guo Hua Lou
Published: October 2014

In the combustion process of pulverized coal injection into blast furnace, the chlorine goes into the unburned pulverized coal is about 17%, the chlorine in the unburned coal keeps original state; The chlorine goes into the blast furnace gas is about 83%, and these chlorine stay as Hcl gas. Changes in air temperature and oxygen rate had no significant effect on the decomposition of chlorine in coal, resulting the rate of Cl into the blast furnace gas is difficult to increase significantly.
Study on the Removal Technology of Fluorescent Permeating Agent Emulsifying Wastewater
Authors: Li Juan , Zhang Xiao Wen , Wang Wen Xian
Published: October 2014

The experimental treatment of emulsifying wastewater containing fluo- rescent permeating agent is conducted using demulsification, flocculation, sedimentation and Fenton processes. The experimental results show that, under the appropriate conditions, the COD, oil and chromaticity can be removed efficiently. The pH, COD, oil and chromaticity of the outwater can reach the national standards.
The Influence on MFC Voltage of Different Types of Oilfield Produced Water as Anode Substrate
Authors: Qin Bi Da , Dong Xuan Dong , Wang Jia Yu , Sun Cai Yu , Guo Dong Pu , Li Yong Feng
Published: October 2014

The voltage is the critical electrochemical parameter in microbial fuel cells (MFCs).There are three major oilfield wastewaters including water flooding produced water, polymer flooding produced water and ASP flooding produced water. These three wastewaters were used as anode substrate of three MFCs in this study. The influence and the influencing factors of the output voltage of the three MFCs and the produced water main refractory organics removal effect were studied. The results show that During this reaction period, MFCs cathode potential stays relative stable, however, anode potential shows a remarkable increasing trend, thus, the anode contributes mostly to the change in output voltage. COD removal effect of Anode substrate and the coulombic efficiency are both influencing factors of the anode potential .The microbial fuel cell for wastewater of surfactant, remove the best effect;For different produced water, oil and polymer removal effect abide by the MFC output voltage and COD value changing law.
Numerical Simulation Study of Wet Desulfurization in Demister in San-He Power Plant
Authors: Zhang Yi , Wang Tong , Zhang Jin Bao
Published: October 2014

In order to use the demister more scientifically and rationally, the numerical simulation of gas-liquid two-phase flow was implemented in two dimensional demister blades by different combinations of parameters using FLUENT software. The relationship between either the pressure drop or demisting efficiency and these factors of droplet diameter, gas velocity and plate spacing in san-he power plant was obtained respectively. The simulation shows that: With the change of the droplets diameters and blades spacing, the import and export pressure drop almost have no change. But it will increase with the increasing of gas velocities; With the increasing of droplets diameters, the demisting efficiency is increasing rapidly; The demisting efficiency increases with the increasing of gas velocities and decreases with the increasing of blades spacing.Keywords: Numerical Simulation, droplet diameter, gas velocity, plate spacing.
Challenge and Development of Sludge Treatment and Disposal in China
Authors: Zhu Long Long , Qiu Li Ping , Zhang Li Xin , Zhang Shou Bin
Published: October 2014

As the grim situation of the contamination caused by the sludge is gradually expanded in China, the target to make sludge harmless, stable, reduced, and available is increasingly aimed. Traditional methods and techniques of sludge treatment, disposal, and resource utilization are mature and widely used in many waterworks. With the fast progress of science and technology, some new technologies in treating sludge are appearing to manage the incoming challenge of sludge treatment and disposal. Therefore, the traditional methods and novel development of sludge treatment and disposal are reviewed in this paper in order to find optimal solutions to solve the problems of the sludge pollution.
Nitrification and Denitrification Potentials of Soil in Liaohe Estuary Wetland
Authors: Xiao Ying , Yang Ji Song
Published: October 2014

Nitrification and denitrification plays an important role in the nitrogen cycle in wetlands. The nitrification and denitrification potentials of soil from different depths (0-40 cm) in Liaohe estuary wetland were studied with laboratorial batch incubation for three weeks. The results showed that the percent of nitrification and denitrification in soil at different depth were about 25-40% and 31-63% of soil total added nitrogen over three weeks, respectively. Both the denitrification and nitrification of soil at different depth showed an exponential decay trend over the incubation period. The corresponding rates were 0.013–0.021 mg·kg-1·d-1 and 0.017–0.057 mg·kg-1·d-1. The value of surface soil (0-5cm) was significant higher than that of the subsoil (5-40 cm) (p < 0.05) and there was no significant difference between values of the subsoil (p > 0.05).
Effects of Biogas Residue on Soil Improvement in Peach Orchard
Authors: Wang Shun Li , Yang Jian Shan , Wang Rui Lan , Li Rong Qi , Wang Shu Tao , Liu Ke Feng
Published: October 2014

The aim of the work was to analysis effects of biogas residue continuous application on soil fertility improvment. The results showed that biogas residue addtion to peach orchard improved soil quality. Biogas residue application reduced soil bulk density quickly in a short term, improved soil TP, effctive N and available P contents significantly, as well as promoted soil TOC and humus acid accumulations to imoprove soil fertility. The results provide technical support for biogas utilization.
Effects of Ventilation on Sewage Sludge Composting
Authors: Zhao Ke , Zhang Yu , Zhang Yu Ting , Yin Ying Ying
Published: October 2014

By using positive forced aeration with different ventilation, sewage sludge was tested in sewage sludge composting. Temperature, moisture, organic matter, pH, ammonium and Germination Index (GI) were investigated. The ratio of sewage sludge and additives was 1:2 and the aeration rates of two composting piles were 1.2m3/ (h·t) and 2.4m3/ (h·t). After the composting, the moisture descended to 50% or so and the organic matter was under 45%. In addition, the pH was acidic and the ammonium was 0.4mg/g or so. The GI was more than 80%. The parameters tested during composting met the maturity requirements of Disposal of sludge from municipal wastewater treatment plant-Control standard for agricultural use.
Influence of Sodium Hydroxide on the Properties of FGD Gypsum-Slag Composite Materials
Authors: Huang Fang , Jiao Bao Long , Wang Dong Dong
Published: October 2014

By examining the compressive and flexural strength of composite and using scanning electron microscopy (SEM), we analyzed the influence of sodium hydroxide on the properties of FGD gypsum and slag composite materials and discussed the influence of sodium hydroxide on the setting time and mechanical strength of the composite materials and presented the action mechanism of sodium hydroxide as a stimulator. The results show that when the content of sodium hydroxide was percent of 0.25, the maximal strength of FGD gypsum-slag composite materials was reached.
Research on Porous Ceramics Synthesized by Industrial Waste Residues
Authors: Li Ting Zhou , Zhu Xiao Qin , Zhou Xin Tao , Chang Jing Hua , Chen Li Meng , Chen Liang
Published: October 2014

The accumulation of industrial waste residues is a serious problem with the continuous development of industrial productions during the recent years, how to use reasonably the industrial waste residues has gradually turned into an important research field in the world. Therefore, the research and development of porous ceramics synthesized by the industrial waste residues of fly ash, coal gangue and red mud etc as the raw materials were introduced, the present preparation technique and characteristics of the porous ceramics synthesized by the industrial waste residues were analyzed, and its further investigation was discussed.
Agricultural Restructuring Based on the Water Resources Carrying Capacity in Shandong Province, China
Authors: Huang Qiang , Wang Wei Ping , Deng Hai Yan
Published: October 2014

The agricultural production in Shandong province is top the list in our country. Available irrigation water has become shorter because quantity of agriculture water use is larger in a part of Shandong, water environment being worse. The contradictory relations between agricultural water and available water resource as well as water environment are analyzed in typical areas, such as groundwater overdraft area, seawater intrusion area and agricultural production areas along the polluted river. The results showed that water resource cannot support the existing mode of agricultural production in these areas. It is suggested to promote agricultural restructuring based on the quantity and quality of the local water resource. Vegetable production bases are moved from Shouguang (in Weifang city of Shandong province, China) to the areas along the Yellow River. The export of vegetables will be reduced. To improve the guarantee degree of water supply, the crop production along the polluted river will be replaced by fast-growing plantation or the surface water irrigation will be changed into exploitation of groundwater. It is suggested to generalize water-saving irrigation system, reduce the amount of agricultural water and improve the utilization efficiency of water resources.
Hydrologic Responses to Climate Change in Mountainous Watershed of Southwest China, 1980 to 2010
Authors: Liu Yang Yang , Liu Bo Juan
Published: October 2014

Hydrologic responses to climate change have become a great challenge and attracted widespread attention of the researchers. The mountainous Qingyi River watershed in the southwest, China, had experienced significant climate change in the past three decades. It is necessary to investigate the hydrologic responses to these changes. Therefore, the effect of climate change on evapotranspiration (ET), surface runoff, baseflow and streamflow were assessed using Variable Infiltration Capacity (VIC) hydrologic model. The Mann–Kendall test analysis was first used to identify the long-term change in precipitation and temperature over the period of 1980–2010. It revealed that there is a significant change in annual temperature particularly in February, March, July and September, whereas an insignificant change in annual precipitation was founded. Hydrologic simulations show that hydrologic responses to climate change were varied from region to region. Surface runoff was more sensitive than ET and baseflow. Monthly variation of the hydrologic processes, especially the change in surface runoff, was mainly attributed to seasonal variation in precipitation. The results of this research can be a useful source of information for the decision making in water resources management and protection.
Multi-Objective Ecological Operation Model for Reservoirs and its Application
Authors: Liu Li Na , Liu Wei Lin
Published: October 2014

Traditional reservoir operation is mainly for flood control and promoting benefits, which ecological factors are not fully considered in. This would probably lead to degradation of river ecosystem. In order to alleviate the influence of reservoirs on river ecosystem, a multi-objective ecological operation model for reservoirs was established. Then, a novel approach was proposed to solve the multi-objective model, which combined a multi-objective particle swarm optimization (MOPSO) algorithm with the non-dominated solutions evaluation approach. MOPSO algorithm was introduced to generate a set of Pareto-optimal solutions, while the non-dominated solutions evaluation approach, based on k-means clustering and the information entropy method, was adopted to provide an alternative sequence for a set of Pareto-optimal solutions. Finally, the proposed approach was applied to the ecological operation of the reservoirs at the main stream of Xiuhe river in Poyang Lake basin in China. The results show that the proposed approach is able to offer the quantifiable benefits or costs among different objectives for the reservoir operators, and can provide a useful tool for decision makers to solve multi-objective water resources and hydrology problems.
Preliminary Research on Hydrodynamic Dispatch Method of Algal Blooms in Three Gorges Reservoir Bays
Authors: Yin Wei , Xin Xiao Kang , Jia Hai Yan
Published: October 2014

Spring algal happened in the bays area frequently after Three Gorges Reservoir’s impoundment. Algal bloom is closely related with nutrients, light, temperature and flow velocity. This paper carried out preliminary research on algal blooms hydrodynamic control method by optimizing reservoirs dispatch on main and tributary channels. Making use of software MIKE 21, a Xiangxi River-Three Gorges Reservoir integrate hydrodynamic numerical model has been established, and a series of conditions have been simulated and studied. The result shows that if Three Gorges Reservoir operates alone, velocity at Xiangxi River mouth is less than 0.05m/s, and if Xiangxi Reservoir operates alone, velocity at Xiangxi River mouth is larger than 0.05m/s in wet year. It implies that Three Gorges Reservoir’s water level change has little to do with improvement of tributaries’ velocity, but reservoir in main and tributary channels dispatch together can improve the velocity obviously, which can control algal bloom in tributary bays.
Soil Microbial Community Structure in Tree Peony (Paeonia suffruticosa) Garden Based on PLFA Analysis
Authors: Xue Dong , Huang Xiang Dong , Xue Lian
Published: October 2014

Understanding the chronological change in soil microbial community structure of tree peony garden ecosystem is important from ecological, environmental, and management perspectives. Soil samples were collected from three tree peony garden systems (5-, 12-, and 25-year-old tree peony gardens), and adjacent wasteland at Luoyang, Henan Province of China. Soil microbial community structure was analyzed by phospholipid fatty acid (PLFA) method. The bacterial and actinomycete PLFAs increased from the wasteland to 5-year-old tree peony garden and then decreased from the 5- to 25-year-old tree peony garden, and the fungal PLFA first increased and then decreased with the increasing planting years, with the greatest amount found in the 12-year-old tree peony garden. The conversion from the wasteland to tree peony garden resulted in a significant increase in Shannon index, Richness, and Evenness. However, with the succeeding development of tree peony garden ecosystems, Shannon index, Richness, and Evenness decreased from the 5- to 25-year-old tree peony garden.
Study on Function Zoning and Evaluation of Shallow Groundwater in Jinjiang City
Authors: Yu Mingyao , Chen Suo Zhong , Chen Chu Yu
Published: October 2014

Based on the comprehensive analysis about the hydrogeological condition, ecological environment, and the characteristics of geological environment, energy is devoted to constructing a function evaluation indicator system of shallow groundwater with Jinjiang regional characteristic in the light of the assessment indicator system proposed in technical requirement for function evaluation and zoning of shallow groundwater issued by ministry of Land and resources. By dint of expert’s knowledge and experience, efforts are spent in assigning different weight values to the indicators, classifying function evaluation grading standards, and putting forward a secondary function zoning rating system. Besides, focus is put on building a comprehensive function evaluation model of shallow groundwater by means of analytic hierarchy process based on the constructed assessment indicator system of shallow groundwater. In order to guarantee assessment accuracy, the studied region is split into regular discrete grid for the purpose of calculating the comprehensive assessment index of grid unit. Meanwhile, based on GIS’ spatial analysis function, a research is conducted on the overall function zoning map of the shallow groundwater in the studied region to accurately reveal its spatial distribution and exploitation and provide scientific basis for groundwater management.
The Application of Strontium on Recharge of Shaizhudong Spring in the Central of Weibei
Authors: Ma Zhi Yuan , Li Jin Bin , Zheng Lei
Published: October 2014

Shaizhudong spring is the largest one in the central of north of the Weihe river, Shaanxi Province, China. For its supply source, forefathers have done a lot of research. It was considered that Jinghe leakage is the main supply source of Shaizhudong spring, and it is the concentrated discharge points of Shaizhudong spring area hidden karst system. In this paper, we have different understanding on recharge of Shaizhudong spring, based on the research achievements of strontium isotope.
The Evolution and Instruction of Strontium Isotope in the Geothermal Water of Basin Type
Authors: Ma Zhi Yuan , Li Xiu Cheng , Zheng Hui Ju
Published: October 2014

Combined with the Guanzhong basin tectonic evolution, the data of Sr content, 87Sr/86Sr ratio and hot water hydrochemistry has been used to study the supply origin and flow path of deep geothermal water in the Guanzhong central region. The Sr isotope study result shows that when accepting recharge, the geothermal water in the northwest and southeast of Xianli terrace both mainly come from northwest direction. A small amount supply source of geothermal water in the Xi 'an city is from Qinling mountain and the principal supply source comes from the west and north direction, however, geothermal water of Chang’an accepts supply from the north of Qinling mountain. Keywords: geothermal water; strontium isotope; basin type; indicating significance
Tracer Test of Fracture-Karst Aquifer Recharge with Roofwater in Jinan of China
Authors: Deng Hai Yan , Wang Wei Ping , Huang Qiang
Published: October 2014

The monitoring data of recharge well and observation wells, in which have hydraulic link to some degree, are used to analyze effects of the fracture-karst aquifer recharge with roofwater. Because of the heterogenous karst development of limestone, the effective method of tracer test on the basis of determining groundwater flow direction is adopted to identify observation well and hydrogeological condition. Two tracer tests were conducted with salt as the tracer and the conductivity change with time of different groundwater levels was monitoring in the test site of University of Jinan. It was shown that the No.3 well could be used to monitor the effect of roofwater recharge and the apparent velocity of groundwater in this area was calculated as 9m/h~20m/h, which is significant for the karst aquifer recharge and environment evaluation in North China.
Water and Sediment Exchange between the Yangtze River and the Poyang Lake, the Largest Freshwater Lake in China
Authors: Wang Hua , Song De Peng , Xu Ting , Yang Rui
Published: October 2014

In view of the complicated water and sediment exchange between Poyang lake and external Yangtze River, a 2-D unsteady numerical model with water current and sediment coupled was established. The hydrological condition in the common-water year (2010) was used for a yearly numerical simulation to investigate the water and sediment exchange mechanisms. The results showed that: The annual water volume flowing to the Yangtze River from Poyang Lake was about 2.17×1011 m3. Due to the periodical jacking influence of the external water level, about 1.06×1010 m3 water quantity flowed back into the Lake from the Yangtze River. The water exchange between Poyang Lake and the Yangtze River varied evidently with seasons, which was mainly concentrated in March and September. The annual sediment exported from Poyang Lake to the Yangtze River was about 1.53×107 t ,and the amount of sediment flowing back to the lake was about 1.89×106 t.
Water Quality Change and Control Measures of Landscape River on West Campus of University of Jinan, China
Authors: Deng Hai Yan , Wang Wei Ping , Xu Qiao Yi
Published: October 2014

on the basis of inflow calculation and water quality monitoring of Jiazi river, the present quality situation of landscape river in University of Jinan was evaluated, with the indicator of nitrogen, by arithmetic means method which was usually used for environment quality evaluation of surface water. In addition, the river dilution mixture model was built for water quality simulation with the indicator of ammonia nitrogen. Moreover, the relevant control measures of aquatic plants restoration technologies and dam reconstruction were proposed to improve the landscape river water quality.