bluuebunny/crossref_metadata_2025 huggingface dataset:
Land Use Conflicts and their Governance in Rural-Urban Transformation
Authors: Xu Xiao Ting , Li Qin Fang , Sui Li Chun , Jiang Min
Published: October 2013

Stakeholder Theory and System Analysis Approach were employed to study on land use conflicts and their management methods in rural-urban transformation and promote sustainable land-use and healthy urbanization development. The results indicate that land use conflicts are increasing seriously in rural-urban transformation, which has become the obstacle to sustainable land-use and healthy urbanization development. Under the state council, local governments and all enterprises, rural collective economic organizations, and peasants are the major stakeholders. Different interests of various stakeholders are the root of these conflicts. Land use conflicts can be dissolved through improving rural land property rights institution and land requisition system, and establishing coordination mechanism of interests based on the principle of interests balance in Rural-urban transformation.
Design of the Overall Logistics Process of Logistics Park
Authors: Wu Chun , Hu Tian Jun
Published: October 2013

Lacking internal logistics process analysis and design in the logistics park planning has a certain influence on the park construction and post-development. Given this, this paper proposed general design principles of internal logistics processes of the logistics park and whereby internal logistics processes designed with the combination of ideas of IOT to the information flow, which can significantly enhance the overall service level of the logistics park.
Research on the Design Strategies of Low-Cost Landscape Architecture
Authors: Dong Li , Zhang Yu
Published: October 2013

Landscape architecture has become one of the most important parts of contemporary living environment due to its extensive value in the field of aesthetics and ecology, society and culture. However, because of the lack of effective theoretical guidance of cost control, contemporary landscape consumes a lot of resources and environmental costs during the construction and maintenance, which is against the original intention of constructing good ecological environment. Low-cost landscape architecture, with the idea of low intervention, low consumption, low conservation and low emission, is trying to research on controlling the landscape architecture construction interference to the environment and reducing landscape cost of construction and conservation from material selection and labor management to promote the long-term development of landscape architecture effectively.
Research of Based Sustainable Development on Tourist Attractions Second Pioneering
Authors: Chen Er Dong , Qi Xiao Xiao
Published: October 2013

While the tourists volume begin to wander even decline after some tourist attractions go through the golden period of swarming tourists, determining how to do the second pioneering and re-attract tourists around has become an actively explored topic. Firstly, we started from the concept of tourist attractions, exploring the characteristics and classification. Secondly, on the basis of the scenic life cycle theory, we expounded the meaning of tourist attractions second pioneering. Thirdly, we illustrated the tourist attractions second pioneering theoretical foundation for sustainable development. Finally, we studied the tourist attractions second pioneering major issues facing sustainable development and put forward corresponding countermeasures.
A Study on China's Regional Capital Allocation Efficiency and Influencing Factors
Authors: Xu Ke , Guo Wei
Published: October 2013

This article estimated the capital allocation efficiency of China's four major regions and 31 provinces. The results showed that, in the long run, China's overall capital allocation efficiency shows a rising trend, the regional capital allocation efficiency decreasing progressively as eastern, central, western, north, and provincial level also have significant differences. Then it continued to analyzed impact on the efficiency of capital allocation and found that the nationalization of the degree, the level of human capital, the level of opening up, the level of financial development, the level of government interference, the level of urbanization all have varying degrees of impact on regional capital allocation efficiency.
Uncertainty Analysis of the Carbon Tax on Net Profit for an Enterprise
Authors: Yu Tai Yi , Fan Yung Ching , Lu Ruei Shan , Peng Kuo Wei
Published: October 2013

A carbon emission trading/carbon tax is an economic incentive to encourage enterprises to reduce their carbon emissions. The information of greenhouse gas emissions at 2005-2009, carbon emissions trading prices in Europe, the euro-NT dollar exchange rate, and the profits and losses of enterprises, manufacturers of panel-related technology, were gathered to estimate VaR (Value at Risk) and CVaR (Conditional Value at Risk) values of implementing carbon tax or carbon emissions trading, using the Monte Carlo simulation method with the Crystal Ball software. This study uses sensitivity analysis, tornado diagrams, and spider graphs to determine the influence that variables have on enterprise net profit.
The Impact of Economic Development on Clean Energy Consumption in China: Based on Morlet Wavelet Transform Analysis
Authors: Jiang Chun , Li Kong Jian , Qi Yaou
Published: October 2013

This article investigates how economic development influences on clean energy consumption in China. At first, the relationship between economic development and clean energy consumption was discussed theoretically. Then the method of Morlet wavelet transform was introduced in detail, and an empirical study was carried out on the basis of it. The results indicate that the development of the Chinese economy has a positive and significant effect on the increased proportion of clean energy consumption. Finally, the thesis draws a conclusion that, with the rapid growth of china economic, clean energy industry will occupy a more important place in the national economy and promote the sustainable development of society.
Researches for Problem and Countermeasures of New Energy Power Generation in China
Authors: Zhang Xi Rong , Li Qiu Yue
Published: October 2013

In recent years, our government and enterprises pay much attention on the new energy power generation, with obtaining the remarkable result. But the development of new energy power generation still has many problems, such as connected-grid, the effect on power system, economic problems, and so on. This paper analyzes the current situation of the developing new energy power generation in China, with finding out the existing problems and influence on the power system. At last, it put forward some countermeasures and suggestions in developing of new energy power generation.
Study on Backwash of Biological Aerated Filter
Authors: Ke Zhao , Gang Zhu , Yu Zhang , Zheng Kong
Published: October 2013

Backwash was very important for ensuring the successful performance of biological aerated filter (BAF). Through the experiment, combined air-water backwash mode were taken in BAF backwash and water backwash were 5~7L/(m2·s) and air backwash 13~17L/(m2·s) with the backwash period 24h and the backwash time 15min. It took 5~6h to recover to the optimal performance after backwash.
Marine Biodiversity and Sustainable Development Strategy for Dabijiashan National Special Marine Protected Area
Authors: Liu Yu Ning , Cao Li Juan , Shangguan Zi Chang
Published: October 2013

Marine protected area fulfills three key functions in modern conservation: conserving marine biodiversity, maintaining productivity, and contributing to economic and social welfare. Marine biodiversity in marine protected area is very important problem for marine ecology, fisheries management, and conservation biology. Evaluation for value of marine biodiversity and biological structural diversity are discussed in the paper. Sustainable development strategies for Dabijiashan national special marine protected area are investigated.
Eco-Restoration on the Sichuan Giant Panda Sanctuaries after 4.20 Earthquake
Authors: Ma Yue Wei , Zhao Yong Tao , Gong He De
Published: October 2013

s: It is a catastrophe for the whole nation to the Lushan earthquake. This earthquake not only had caused the devastating destruction to the social economy, peoples lives and property, but also destroyed the national eco-system, changed the preliminary geomorphic, led to the casualties of the wild animals and plants. Simultaneously, the giant panda which is viewed as the peoples friend and the national treasure cant escape the catastrophe in the earthquake. The Sichuan Giant Panda Sanctuary lies in the earthquake-stricken area. The giant panda were viewed as the endangered species by the International Union for the Conversation of Nature and Natural Resources (IUCN) and were chosen as the emblem of the World Wide Fund for Nature (WWF), symbolizing natural conservation and world wildlife protection. After the Lushan earthquake, the giant pandas were given enormous concern by the UNESCO world heritage center. Therefore, it is very important to investigate to destroy the Sichuan Giant Panda Sanctuary by the earthquake. This work could benefit us to know about the damaged natural ecosystem, the extent of damaged Sichuan Giant Panda Sanctuaries. It had the great significance to protect the giant panda and to put forward the strategies for the restoration and reconstruction of Sichuan Giant Panda Sanctuaries.
Explore Performance Evaluation System of Coal Enterprises from the Perspective of Social Responsibility
Authors: An Jing Wen , Zhang Xiu Ling , Wang Yu Jie
Published: October 2013

China's coal enterprises attach great importance to the sustainable development strategy, they also enhance the consciousness of corporate social responsibility, however, performance evaluation management at present has not yet been formed a set of evaluation index system which reflects corporate performance and the coordinated and sustainable development of the environment. Based on this, this paper summarized scholars theory on enterprise performance evaluation and built a coal enterprise performance evaluation system from the perspective of social responsibility; And using Analytical Hierarchy Process (AHP) to determine the weight of evaluation; And using comprehensive evaluation to analyze index system, which shows that the firm's ability to decrease cost and increase efficiency in the industry are relatively poor, and the score of noise intensity, green area and solid waste emissions is not good.
Theoretical Solutions for Key Technological Issues on Energy Savings Measurement and Verification
Authors: Tian Jian Wei , Chen Hai Hong , Li Zhi Zhong
Published: October 2013

Two key technological issues i.e. significant energy consumption factors identification and baseline model development, energy savings uncertainty analysis are analyzed based on international performance measurement & verification protocol (IPMVP) and national standard GB/T 28750. Besides, two theoretical solutions are proposed correspondingly. Finally, energy savings calculation on an energy-saving retrofit project of a building heating system verifies the validity of the theoretical solutions proposed.
Using Renewable Energy Hybrid Power Generation Technology in South Xinjiang
Authors: Abudureyimu Asifujiang , Han Qian , Qiu Ping Ji
Published: October 2013

This paper presents a realization process of a hybrid system consisting of biomass and wind as well as solar power generation on the target region. The installation principle and procedure are introduced based on the conditions of natural energy such as wind speed and solar radiation degree. The output characteristics from 20kW biomass generator is explained and analyzed in according to coop rational possibility with the wind power and solar power system. The operation characteristics of 40kW wind power turbine is provided based on the practical operation data collected within three years and the simulated results obtained from the software calculation. The operation conditions of 20.6kW solar power system is also analyzed based on the solar irradiance density in the located site. The general efficiency of this triple hybrid power system in economic and environment aspects is also studied by using and comparing the simulation methodology and the data in practical operation.
The Effect of Internal Stakeholders on Environmental Performance Information Disclosure: Evidence from China
Authors: Peng Ke , Kang Yong Bo
Published: October 2013

This study examined the impact of internal stakeholders on environmental performance information disclosure. Based on data from Shanghai A-share companies for the period 2008 to 2011, we differentiated the effects among different groups of internal stakeholders. Our results show that shareholding ratio of the top ten major shareholders and the number of corporate employees positively affects environmental performance information disclosure (EPID) significantly, and institutional shareholding ratio negatively affects environmental performance information disclosure significantly. We do not find shareholding ratios of small and medium-sized investors, qualified foreign institutional investors (QFII) and B-share investors affect EPID significantly. Our results suggest that internal stakeholders do affect environmental performance information disclosure, but the extent varies depending on specific groups of internal stakeholders.
An Analysis of Changes of Carbon Emissions by the Farmers in Sichuan, China in 1997-2010
Authors: Tan Juan , Lin Chang Quan
Published: October 2013

On the basis of the extended Kaya identity and by means of LMDI, the writers analyze quantitatively the 4 factors including energy mix, energy intensity, economic level, and population size, etc. thus giving effects to changes of carbon emissions from livelihood energy consumption by the farmers in the rural residential areas in Sichuan Province from 1997 to 2010.The results show that the energy mix and energy intensity have brought negative effects to the growth of carbon emissions. These effects will come into being more and more obviously. Economic level played a direct role in growth of carbon emissions, which is considered to be their greatest and everlasting contributor in respect of growth of carbon emissions. The contribution of population size keeps pace with carbon emissions basically. These reflect Sichuan Province have made some achievements in developing new energy in the rural areas in recent years. The rural population have been maintained under stable control in Sichuan. Meanwhile, with its economic development, the rural residents livelihood have been improved gradually and the demand for energy consumption keeps on rising. Finally, carbon emissions have increased in the rural areas of Sichuan Province.
The Decision-Making Model of the Electrical Appliances Enterprise Reverse Logistics with Government Monitoring
Authors: Tian Ting , Chen Ya Ping
Published: October 2013

With the rapid development of social economy, the shortage of resources and the increasingly serious environmental pollution, the human society sustainable development problems become the focus of the world. Governments have issued the circular economy and environmental protection legislation. Reverse logistics gradually get concern and attention. Reverse logistics can be achieved through the manufacturers mode, the cooperation mode and the third party mode. This paper established mathematical model and compared research of the three modes under government surveillance, and to analyze of the impact of different recovery mode of the appliance industry Reverse Logistics.
How to Build Enterprise Competitiveness: From Circular Economy Perspective
Authors: Cui Yu , Jiao Hao
Published: October 2013

In circular economy framework, how to enhance enterprise competitiveness is a key issue. This article discussed the relationship between circular economy and enterprise competitiveness, proposed how to build enterprises competitiveness through perspective of circular economy. In detail, green R&D, technology improvement and innovation, clean production, and green management will be helpful to build enterprises competitiveness in circular economy framework. Besides, national policy and service support is important as well.
An Analysis of Changes of Carbon Emissions by Agricultural Production in Sichuan, China in 1997-2010
Authors: Tan Juan , Lin Chang Quan
Published: October 2013

On the basis of the extended Kaya identity and by means of LMDI, the writers analyze quantitatively the 4 factors including carbon emission intensity of planting, agriculture structure, economical level, and population size, etc. thus giving effects to changes of carbon emissions from agricultural production in Sichuan Province from 1997 to 2010.The results show that carbon emission intensity of planting and agriculture structure have brought negative effects to the growth of carbon emissions. These effects will come into being more and more obviously. Economic level played a direct role in growth of carbon emissions, which is considered to be their greatest and everlasting contributor in respect of growth of carbon emissions. The contribution of population size keeps pace with carbon emissions basically. These reflect Sichuan Province have made some achievements in adjusting the agricultural structure in recent years. The rural population have been maintained under stable control in Sichuan. Meanwhile, with its economic development, the agriculture modernization has been improved gradually paying attention to, such as agriculture mechanization, chemization, irrigation and the demand for energy consumption keeps on rising. Finally, carbon emissions have increased in agricultural production of Sichuan Province.
Decoupling Analysis of Economic Growth and Carbon Emissions in Hebei Province
Authors: Hao Dong Heng , Li Cong Xin , Li Guo Zhu
Published: October 2013

On the basis of the calculation of Carbon emissions in Hebei province and Tapio decoupling indicators, this paper has discussed degree of decoupling relationship between economic growth and carbon emissions. The results shows that the decoupling relationship between carbon emissions and economic growth is in weak decoupling in most of the years. Decouple emissions is mainly determined by the energy decoupling. Elasticity of emission reduction and structure made the work face challenges.
Based on Decoupling Model Study Low-Carbon Economic Development in Tianjing Industry
Authors: Yuan Qing Min , Zheng Shao Yu
Published: October 2013

Based on the elastic decoupling analysis framework, using the IPCC recommended the calculation method of the carbon dioxide and LQ, calculated Tianjin industrial emissions of carbon dioxide from 2000 to 2010.It creatively brings in the industry cluster elastic decoupling factor, builds a new elastic decoupling causality chain and analyzes the relationship among the factors in the chain. It is that Tianjin industrial decoupling elastic strength followed by decoupling industrial cluster elasticity, decoupling emission elasticity, energy decoupling of flexibility. Decoupling of energy consumption flexibility in addition to the 2009-2010 after expanding hook and expand outside connection, is weak. Decouple emission elasticity, except for expansion after 2001 hook, the rest are in strong decoupling or weak decoupling. Industrial cluster elastic appear fluctuation condition, the overall trend to strong decoupling for weak decoupling, industrial concentration degree increases, the industry growth obvious advantages, the scale showed a trend of fluctuations decrease, manifests the high and new technology's influence on the industrial cluster development. According to the results of research, Tianjin industrial low carbon routing and the relevant countermeasures will be promoted.
Study on China's Carbon Emmission Three Factors Simulation in 12th Five-Year Plan: 2011-2020 in an Economy-Energy-Environment Framework
Authors: Liu Jing Hua , Wang Zhan Hong , Jia Re Nan , Deng Yu Jie , Tu Guo Ping
Published: October 2013

In an Economy-Energy-Environment framework, we use system dynamics simulation analysis, thermal coal equivalent, by 2000-2010 history data, divide GDP into three industries, energy into coal, petrol, natural gas and electricity subdivision 9 energy, environment per person carbon emissions, build 9 simplified in-tree model and simulation equation. On the goal of per person GDP double index, simulation per person carbon emission in 2011-2020 . subject to the The 12th Five-Year Plan (E1)- GDP growth 7% and the industry structure of 6%, 45%, 49% and in 2020 10000RMB carbon emission degrade 40%-45% to one in 2015, energy (E2) the goal of energy consumption total, energy consumption structure and 10000 GDP energy consumption in energy The 12th Five-Year Plan , in the hypothesis of scheme A-secondary industry decrease rate 0.1% per-year and tertiary industry growth rate 0.15% per-year and scheme B-percent of secondary industry adjust to forty five percent and tertiary industry adjust to forty nine percenttwo scheme, get the goal of double GDP per population in 2017, it is positive to increase energy efficiency and decrease to carbon emission for industry adjustment, scheme is better to achieve the 12th Five-Year goal.
Perspectives of Green Marketing for Ecological Security in Great Mekong Subregion
Authors: Zhou Li Jun , Zhou De Qun
Published: October 2013

Green marketing (GM) involves not only in enterprises, consumers, but also in the government in precondition of both environment and ecological security friendly. Free Trade Area (FTA) has increased trade dramatically among China and other Great Mekong Subregion (GMS) countries since 2000. GM concept, strategies and methods should be promoted and embodied in FTA trade practice among China and other GMS countries. This paper will introduce GM and ecological security concepts and methods, challenges for ecological security in GMS, articulate suggestions how GMS countries to improve ecological security status in order to safeguard ecological security in the region.
Cultivation of Innovative Talents in Engineering Colleges
Authors: Liu Huai Yu
Published: October 2013

Innovation is the soul of a nation's progress.Cultivating innovative talents is the important mission of many colleges,especially engineering colleges. Each engineering colleges and universities should fully understand the innovative talent concept and significance of cultivating innovative talents.What is more,They should find the problems that exist in the innovative talent training.Finally,they should optimize the measures of cultivating innovative talents to Cultivate a large number of innovative talents for building an innovative country.
Warning Model System of Financial Fragility Based on GM(1,1)
Authors: Zhou Chun Xi , Zhou Ke
Published: October 2013

The worldwide financial crisis arises one after another, highlighting the fragility of the financial system. It has become an important part of financial risk management when dealing with the issue on how to conduct an effective warning of financial fragility. This paper refers to the domestic and foreign research results and has constructed the precaution index system of financial fragility. Based on the gray GM (1,1) model, the author sets up warning model of financial fragility and analyzes the specific evaluation process aiming to provide important theoretical as well as practical significance for Chinas financial supervision.
Influence of Pollutant Removal Efficiency on Natural Ventilation in GPPLF System
Authors: Zhou Xiao Bo , Wang Cheng Duan , Wang Zhi Shuai , Zhang Li Li , Li Xia
Published: October 2013

Two Gravel-less Perforated Pipe Leach Fields systems with naturally ventilated or not were tested to treat domestic sewage under the hydraulic loading of 3.3 cm/d, and the differences of the two systems decontamination effect were also investigated by using T test. The results showed that the average removal rates of CODCr, TP, TN and turbidity were 86.1%, 58.0%, 61.1% and 93.6% in the naturally ventilated system, which was 2.0%, 5.4%, 10.2% and 3.2% higher than the normal GPPLF system under the same operating condition. T test indicated that the system of natural ventilation had little effect on removal of CODCr and TP, but could significantly improve the treatment effect of TN and turbidity.
The Flow Field Distribution of Subsurface Flow Constructed Wetlands
Authors: Wang Quan , Song Zhi Xin , Bai Shao Yuan
Published: October 2013

this paper reviewed the progress of flow field distribution in subsurface flow constructed wetlands (SSF), generalized the theoretical basis for numerical simulation of flow field distribution and the application of computer software in subsurface flow constructed wetlands. At the same time, analysed the relationship of flow field distribution with the bed body of aspect ratio, substrate thickness, material properties of matrix and the way of filling, found that the appropriate aspect ratio, substrate thickness and scientific way of filling could improve the flow field distribution, which was an effective way to improve the utilization rate of substrate. In addition, summarized the plant roots system and microbe growth effect on the flow field distribution. Therefore, the flow field distribution was directly effected of utilization ratio of matrix material, and living environmental condition of microbe, thus the flow field distribution as a parameter for design would be a kind of scientific method. Finally, proposed the corresponding research methods, and discussed how to improve the flow field distribution uniform, for improving the design level of subsurface flow constructed wetlands.
Influence of Electrolytes and Humic Acid on Aggregation Behavior of C60 Nanoparticles in Aquatic System
Authors: Fang Hua , Shen Bing Bing , Sun Yu Xin , Wang Yuan , Lu Ji Lai
Published: October 2013

The aggregation kinetics of C60 nanoparticles have been investigated over a wide range of monovalent and divalent electrolyte concentrations by employing time-resolved dynamic light scattering (DLS). The results showed that the presence of electrolyte made a dramatic decrease in the surface zeta potential and increase in the particle size. The aggregation kinetics of C60 nanoparticles exhibited reaction-limited and diffusion-limited regimes, which was found to be consistent with the classic Derjaguin-Landau-Verwey-Overbeek (DLVO) theory of colloidal stability. The critical coagulation concentration (CCC) values of C60 nanoparticles were estimated as 321mM Na+, 295mM K+, 9.6mM Ca2+and 6.7mM Mg2+, which were far higher than the electrolyte concentrations in natural water. The enhanced C60 stability in the presence of humic acid was attributable to steric repulsion. Therefore C60 nanoparticles can be relatively stable in typical aquatic environments.
Ex Situ Bioremediation of Polycyclic Aromatic Hydrocarbon Contaminated Soil Using a Static Aeration Biopile Process
Authors: Cai Xin De , Wang Dong Ying , Li Hui , Li Shi Yin , Chen Lai Guo
Published: October 2013

A static aeration biopile process was used to bioremediate polycyclic aromatic hydrocarbon (PAH)-contaminated soil using four different approaches for treating about 30 m3 of soil at a former oil-producing site. The four treatments investigated were as follows: (i) fertilizer plus bulking agent (FB); (ii) fertilizer, bulking agent, plus Tween 80 (FBT); (iii) fertilizer, bulking agent, Tween 80, plus fungi agent (FBTF); and (iv) fertilizer, bulking agent, bacterial inoculum, plus fungi agent (FBBF). After bioremediation for 320 days, the total amount of 16 PAHs ranged from 4.14 to 5.31 mg/kg in the final soil, removal rates ranging from 75.5% to 81.5%. The sum concentration of seven carcinogenic PAHs decreased down to 0.15 mg/kg. The values of the total toxicity equivalence concentrations for 16 PAHs ranged from 0.014 to 0.068 mg/kg. The removal rates of the 16 PAHs in these four different treatments decreased in order FBBF > FBT > FBTF > FB.
Study on the Key Technology of Ecological Small Watershed Construction in Shandong Province
Authors: Ma Liang , Geng Ling Sheng , Zhou Ke Hua
Published: October 2013

Through the four types of watersheds construction in Shandong province such as ecological and water clean type, ecological and economic prosperous type, ecological and landscaping type and ecological and flood preventing type, the former soil and water loss in ecological small watersheds are effectively controlled. Based on the analysis of construction practice in Shandong province, this article puts forward the general principles and key technologies, which is expected to improve the construction of watersheds.
Influence Factors Analysis of Chloronitrobenzene Degradation in Biocatalyzed Electrolysis Systems
Authors: Ren Long You , Guo Wan Qian , Ren Nan Qi
Published: October 2013

Chlorinated nitroaromatie compounds, which are widely used for synthesis industry of chemicals, pharmacy and pesticide, are listed on the priority pollutants by EPA and Chinese MEP. In this study, we investigated biocatalyzed electrolysis systems (BESs) with a bio-cathode seeding with enriched inoculum for the degradation of a typical chlorinated nitroaromatie compound: para-Chloronitrobenzene (4-CNB). Batch test results showed that the 4-CNB (30mg/L) would be completely degraded within HRT of 30 hours with 0.5V power supplied and NaAc (1g/L) as sole carbon source. The optimum operation conditions of CNB degradation in BESs was 50mM Phosphate Buffered Saline (PBS) (pH=7) and the distance of electrode is 1cm. But the 20mM PBS and the distance of 3cm would be acceptable and economic.
Element Content and Nutrient Resorption Efficiency of Litter Leaf in the Several Typical Desert Plants
Authors: Jin Zheng Zhong , Xu Xin Wen , Li Sheng Yu , Yang Ai Ying , Zhong Xian Bin , Yan Jian , Wang Gui Fen
Published: October 2013

Nutrient elements from litter decomposition was viewed as the main source of essential elements for normal growing of the forest tree. In this study, selected litter leaves of several typical desert plants as study materials, and deferent element contents of the litter leaves were analyzed. The main results are as belows: (1) There were significant differences in the levels of C, N, P, K, Ca, Mg and K between litter leaves of different desert plants (p< 0.01). (2) Significant differences were found in the nutrition re-utilization rate of the withered leaves of different plants, with P > K > N.Haloxylon ammodendronhas the highest N utilization rate of 88.33%.Calligonum mongolicumhas the lowest P utilization rate of 95.13%.Elaeagnus angustifoliahas the highest K utilization rate of 77.49%.
Study on Treating Technology of Cr6+Wastewater by Direct Current (dc) Electro-Coagulation Method
Authors: Wang Xin Yu , Wu Qin , Wang Bao Bin , Chen Jia Chuan , Wang Shuang Fei
Published: October 2013

Cr6+wastewater treatment by the self-designed the electric flocculation device has been investigated. This paper analyzed the factors such as the reaction time, reaction voltage, Electrode current, the electrolyte concentration, as well as Reaction pH on the effect of Cr6+wastewater treatment. Comparison of previous studies: Under neutral condition, reaction current was 4.5A,reaction voltage was 25V, electrolytic time was 25 minutes. After processing Cr6+down to concentration of 0.02mg/l, which reached the national sewage discharge standards (GB8978-2002).
Comparison of Turbulent Intensity Component of the Stratified Flow in the Braided River with Different Upstream Flowrates
Authors: Gu Li , Yuan Hang , Li Qiu Lan , Jiao Zi Nan , Wang Lan Lan
Published: October 2013

The physical model experiment was carried out to study the effect of velocity ratio of two layers on the turbulence intensity of stratified flow in the typical braided rivers with two symmetrical anabranches. Two velocity ratios were selected, and the distributions of depth-averaged turbulent intensity component in the left anabranch were analyzed. When velocity ratio became smaller, the turbulent intensity increased and peak turbulent intensity zone transferred from the left area of centerline to the right area of centerline at the section before the bend apex of the anabranch. In the outlet section of the anabranch, turbulent intensity increased at the inner bank. The distributions of lateral-averaged turbulence intensity components in the vertical sections of left anabranch were also analyzed. Turbulence intensity component in the interface of hot and cold water was both high in two velocity ratios. As water flowed downstream, the difference of turbulent intensity component in the vertical direction decreased obviously.
Design of Infrared Spectrometer Based on DSP
Authors: Ye Xiao Jian , Duan Zhen Gang , Shen Zhuo , Zhao Jin , Lian Xiao Qin , Wu Ye Lan , Wang Liang Yu
Published: October 2013

For the sake of evaluating the content of mineral oil and in water, and further more we can judge water quality pollution, we finally develop an infrared spectrometer based on STM32 which is on the basis of infrared spectrophotometry. The instrument realizes calculating the absorbance and concentration automatically with the help of high-precision pyroelectric infrared sensor and signal processing circuit. Besides it combines with built-in A/D converter and USB data transmission module, it can draw the standard curve on the host computer. Experiment results show that the instrument is accuracy enough and simple enough to use.
Determination of Heavy Metals in Water System of Beijing Urban Area and a Countermeasure to Remove them
Authors: Liu Ya Ru , Yang Hong Hong , Liu Nan Hua , Nie Jin Mei , Cui Cheng Min , Liu Lei , Wu Zheng , Wang Xiao Ning , Liu Zhen Dong
Published: October 2013

In this study, water samples were collected randomly from water system of Beijing urban area and analysed by inductively coupled plasma-atomic emission spectrometry (ICP-AES) method to determine the contents of harmful heavy metals (Hg, Cd, Zn, Cu, Ni, Cr, Sb, As and Pb). The concentrations of detected heavy metals were found between detection limit of the instrument to 387.196 mg/L. Among them, one sample gave a very high concentration of copper element. In order to get rid of this copper ion away, a chelating type fiber was used to treat the water sample. After treatment with chelating fiber, the concentration of copper was lowered to <10-5mg/L.
Preparation of Nano-Copper Oxide and Removal of Hydrogen Sulfide under Room Temperature
Authors: Li Fen , Yang Guang Hui , Lei Tao , Yang Sheng Yu , Wang Yan Hong , Wang Yue , Jia Lian Peng
Published: October 2013

In this paper, nanocopper oxide is prepared by complexing-precipitate, and the influence of different process parameters on the removal of H2S performance are studied, and make a comparison for two other methods. The results indicate that different complexing agent, the molar ratio of Cu2+/OH- and calcination temperature, etc., effect the desulfurization activity of nanocopper oxide. nanocopper prepared under optimum conditions (the complexing agent is ammonia, the molar ratio of Cu2+/OH- is 1:3.0, calcination temperature is 400 °C) exhibits best desulfurization activity with a H2S breakthrough time of 235 min, this is much longer than that prepared by hydrothermal method and sol-gel method with breakthrough time of H2S only 20 min and 50 min, respectively; XRD analysis shows that the big grain size of nanocopper oxide and low purity are not in favor of H2S adsorption at room temperature.
Research on the Start-Up Effect of Two-Phase Anaerobic Baffled Reactor
Authors: Jing Ling , Wang Xin Xia
Published: October 2013

Aiming at the fact that the low concentration sewage in small cities, this paper presents Two-phase Anaerobic Baffled Reactor (TAABR) for living wastewater treatment, importantly, it designs and researches Two-phase Anaerobic Baffled Reactor and its advantages, designs a trial project according to the characteristics of the reactor equip. The experiment uses the method that by shortening HRT to raise the load to start and analyses the operating results during startup as follows: 1. 53 days later anaerobic reactor start-up successes.2. When the load is 0.5kgCOD/m3.d, the removal rate of COD is more than 80%. 3. PH value is not the main limiting factors during start up in the reactor and there is basically no danger of excessive acidification.
The Production of Protein Foaming Agent from Baijiu Vinasse
Authors: Zhang Mei Yan , Zhao Hua , Zhang Qian
Published: October 2013

Baijiu vinasse was used as the protein source to produce protein foaming agent. The hydrolysis conditions were optimized. The results show that the optimal conditions are: for every 20 g of baijiu vinasse, 1 g CaO and 80 mL water are add, the reaction temperature is 80°C and reaction time is 2 h. Hydrolyzed twice under the optimal conditions, the protein extraction rate can reach 30.5%. After the hydrolyzation, supernatant was collected, neutralized and condensed to 3% protein content as protein foaming agent. Foam properties were determined by Ross-Miles meter. The foamability is 172 mm, and foam stability is 160 mm, which shows huge potential for application.
Feasibility of Refuse Derived Fuel 5 Composed of the Mechanical Biological Waste Treatment and Crude Oil Sludge
Authors: Maneewan Somchai , Punin Weera , Punlek Chantana , Thongtha Atthakorn , Kiatsiriroat Tanongkiat
Published: October 2013

The main focus of this paper is concerned with the production and properties of refuse derived fuel 5 (RDF-5) for use in energy from waste technologies. The analysis was performed using feedstocks made up of residues from a range of mechanical biological treatment (MBT) plants and crude oil sludge. The RDF-5 was composed of crude oil sludge and mechanical biological waste treatment (MBWT). The ratios of MBWT to crude oil sludge were 5:95, 10:90, 15:85 and 20:80 respectively. The physical and thermal characteristics of RDF-5 were examined. This was further investigated in the context of the parameters required during production and the properties of RDF-5. RDF-5 was produced using a screw compactor. Analysis of the optimal mixing ratios between the crude oil sludge and MBWT were undertaken by testing the thermal value based on ASTM D 240 moisture contents was based on ASTM D 3173, ash was based on ASTM D 3174, and density was based on ASTM E 75 respectively. The results showed that the optimal ratios of MBWT to crude oil sludge were 15:85 and 20:80 have feasibility to produce the RDF-5. Because of the ratios of 15:85 and 20:80 have a high value 10,831 kcal/kg and 11,260 kcal/kg, the percentages of moisture were 2.73% and 5.93% and the density values were 750 kg/m3and 806 kg/m3respectively (RDF-5 has a high heating value (HHV > 5,000 kcal/kg), with the percentage of moisture content not exceeding 10 percent and the density value (D 600 kg/m3) according to production of solid fuels standards). The ash values were 5.10% and 4.74% respectively. Comparing the energy production costs between RDF-5 and other fuels used in Thailand we found that the production costs of RDF-5 were 0.014 /MJ and 0.013 /MJ which are comparable to that of paddy husk and much cheaper than those of fuel lignite and bituminous. This preliminary evaluation reveals that the recovery of energy through RDF-5 production from MBWT with crude oil sludge is cost attractive and it should be considered as a feasible option for utilizing energy from MBWT with crude oil sludge.
Degradation of Artificial Sweetener Saccharin Sodium by Advanced Oxidation Technology
Authors: Chen Sheng Wen , Li Wen Chao , Sun Zhi Guo , Xie Hong Yong
Published: October 2013

In this paper, the advanced oxidation processes of photocatalytic oxidation and Photo-Fenton oxidation were used in degradation of emerging pollutants saccharin sodium. The concentration of saccharin sodium was determined by HPLC. The results showed both photocatalytic oxidation and Photo-Fenton oxidation had an effective degradation of saccharin sodium. The degradation process was followed the first-order reaction. The best conditions of photocatalytic oxidation system: 500W mercury lamp, 0.04 g TiO2, pH=7 and the best ratio of photo-Fenton was SAC:H2O2:Fe2+=5:60:1. The total organic carbon (TOC) of sample has significantly reduced to about 93% by the two systems.
Construction Waste Recycling Analysis
Authors: Wei Hai Min , Zhang Hui
Published: October 2013

promoting the effective use of construction waste is the basic way to carry out construction waste comprehensive control; this paper introduces the current situation of the construction waste, and taking the construction waste of Beijing for example, by using linear regression model analysis. At last, according to the construction waste recycle, we put forward economy mode and reuse of the solution.
Research of Pharmaceutical Sludge on Choosing Compost Technology and Evaluation of Fertilizer Efficiency
Authors: Wu Hao , Zhang Yu Long
Published: October 2013

This paper confirmed the best compost process and parameter of pharmaceutical sludge by forced aerated compost experiment. The volume ratio between sludge and straw is 2:1. The first fermentation is 0-14 days and the primary ventilation quantity is 6m3/h·m3. The second fermentation is 15-35 days. 35 days later, the sludge will be moved from compost tank to space for the post-processing period. 50 days later, composting sludge is completely decomposed. The application effect of sludge fertilizer was analyzed on the lawn and desert land. Rotten sludge fertilizer can raise soil fertility, promote the growth of grass, and be applied in urban greening, and then this can avoid the heavy metals and harmful material entering the food chain. That the sludge fertilizer exploited in desert soil can improve the sand soil nutrient effectively and amend the poor physical and chemical properties of desert soil. Therefore, the entire achievement can be used to strengthen wind prevention and sand fixation and treat ecosystem recession of desert land.
Study on the Production of Fermentable Sugar by Use of Cellulose on Banana Peel
Authors: Xu Zhong , Zhao Xue , Ju Ying Lin
Published: October 2013

Banana peel is the main by-product in banana processing.A lot of banana waste are not disposeed in China every year.Used for degradation of cellulose on a banana peel and converted into fermentable sugars research. Efficiency of hydrolysis of cellulose to investigate the effect of factors: substrate concentration, reaction temperature, reaction time, enzyme dosage, pH. A single factor experiments the results: substrate concentration is 25%; the reaction time of 6h; reaction temperature of 50°C; the pH is 4.8;the amount of enzyme is 1%. Experimental results show that the application of enzymatic degradation of cellulose can be prepared banana fermentable sugar residue is feasible.
The Weight and Optimization of the Path Analysis of Waste-Heat Utilization in Larege Hospitals
Authors: Wang Yue Ren , Song Yan Li , Mao Hong Di
Published: October 2013

The value of wasteheat utilization in large general hospitals is a critical problem that can not be ignored with social development. To make use of this source means to establish a system of wasteheat utilization, and two priorities are determining the weigh of different wasteheat utilization point properly and determine the best path for waste heat utilization. In this paper, based on Analytic Hierarchy Process (AHP) and Information Entropy of wasteheat utilization point distribution model, we find the way to determine the weights. At the same time, the Minimum Spanning Tree Model based on Kruskal's algorithm helps to find the new method of optimal path in using wasteheat. Both models will be used in the heat research of a hospital, and we identify both clear wasteheat utilization point weights distribution and minimum cost of the best path which really paves the way for the further system construction of wasteheat utilization in large general hospital with further research and application value.
Terrestrial Ecological Risk Assessment Model of Nuozhadu Reservoir
Authors: Wang Li Ping , Huang Hai Tao , Shi Jia , Zhang Yan Ke , Zhang Pu
Published: October 2013

Large reservoir ecological risk assessment is an important part of ecological environmental protection and improvement. Taking Nuozhadu reservoir in Lancang river basin as an example, a multi-level risk receptor--multiple risk source evaluation index system which can describe the complicated relationship and mechanism of ecological risk is established in terms of recognizing ecological risk sources and receptors of the valley area of terrestrial ecosystems; Considering fuzziness of human cognition on ecological system, diversity and different measure standard of the risk evaluation indicators, the multi-level fuzzy comprehensive evaluation model based on RRM(Relative Risk Model) thought is constructed. Calculation results show that the ecological-risk fuzzy-evaluation score of each receptor and the overall score can be obtained, which can provide important reference for ecological environment improvement of Nuozhadu reservoir area through the comparative analysis.
A Study of the Effects of Nitrogen and Phosphorus on Aquatic Ecosystem Health Status
Authors: Xu Yi Xin , Zhang Hua Yong , Xu Xiang , Zhao Jing , Li Fei
Published: October 2013

Eco-exergy which is a thermodynamic indicator is applied to assess the ecosystem health status of QiXing Lake. And effects of nitrogen and phosphorus on ecosystem health status have been investigated. The results indicate that the ecosystem which contains macrophytes has the better health status than that does not contain macrophytes when they have the same concentration of nitrogen or phosphorus. The ecosystem health status decreased as the concentration of total nitrogen increased when the ecosystem contains macrophytes. However, the ecosystem health status has not significant change as the concentration of total nitrogen increased when the ecosystem does not contains macrophytes. It has the same law for total phosphorus.
Study on Metal Oxide Catalyst for Selective Catalytic Reduction of NOx at Low Temperature
Authors: Gou Xiang , Zhang Kai , Liu Lian Sheng , Liu Wen Yong , Wang Zi Fang , Yang Guang , Wu Jin Xiang , Wang En Yu
Published: October 2013

The method of selective catalytic reduction (SCR) is now one of the mature applications of NOx removal technology, which can meet the practical requirements due to the more stringent laws and regulations on air pollutions. However, the active temperature of traditional SCR catalyst is usually in the temperature range of 300-400°C, which limits the condition of SCR unit. Therefore, low temperature SCR method has caused concern for the scholars in recent years. Catalyst is the key to SCR unit because its performance has a direct influence on the catalytic efficiency. This paper summarizes the research progress of metal oxide catalyst of low temperature SCR. In addition, the future research work is discussed.
Numerical Simulation on Oasis Effect over Northwestern China
Authors: Wen Xiao Hang
Published: October 2013

The characteristics of air temperature, circulation and energy budget of Jinta Oasis are simulated by WRF model, which is the weather research and forecast model of NCAR. The results show that the WRF model has good quality in simulating the diurnal characteristics of surface layer temperature, wind fields, net radiation, sensible heat flux and latent flux. In addition, the model initial fields were also modified by observations of soil temperature and moisture in order to improve the simulations in this study due to important roles of the soil moisture and temperature playing in affecting the cold island effect, the wet island effect properties and surface energy budget balance over the oasis in arid area. Then, the microclimate characteristics and local thermal circulation generated by inhomogeneous underlying surface over Jinta Oasis are analyzed.