bluuebunny/crossref_metadata_2025 huggingface dataset:
Origin of Cr in alluvial sediments and ultramafic rocks in Sultanate of Oman. Magnetic fractionation and sunlight effect.
Authors: Moraetis Daniel , Al-Suhai Shahlaa , Pracejus Bernhard , Pyrgaki Kostantina , Argyraki Ariadne , Dermatas Dimitris
Published: November 2022

The present study attempts to identify the sources of Cr(VI) in a coastal alluvial fan soil and soil from a chromite mine. In addition investigates the effect of photochemically oxidized organic matter in the Cr(VI) mobilization in soil. The alluvial bulk soil samples contain several evidence of weathered products of the ophiolite nappe like serpentine and amphiboles. For better characterization we separated different soil fractions with magnetic separation. The results showed that magnetic fraction exhibits high amount of serpentine. The XRF-analysis showed Mg and Cr to be enriched on average by 2.5 and 6 times, respectively. The produced fractions were mixed with glucose to simulate organic carbon and then leached with KH2PO4/Na2HPO4 for the exchangeable Cr in all fractions before and after the exposure of the samples in the sun for several days. The results showed that soils from chromite mine were influenced by oxidation of organic matter with 20-30% reduction in Cr(VI) release, while alluvial fun soils showed very high capacity to immobilize Cr(VI) without any effect from organic matter oxidation.
50-year precipitation trends in Nestos Delta-Natura 2000 site
Authors: Proutsos N. , Korakaki E , Bourletsikas A. , Karetsos G. , Tsagari K. , Georgiadis C.
Published: November 2022

Nestos Delta (north Greece) is a complex ecosystem of high ecological importance, protected by the European Union as a Natura 2000 site. The presence of the habitats 3170* and 91E0*, which are highly connected with water resources availability, impose the continuous monitoring of precipitation in the area, since even minor changes of the precipitation regime could have a significant effect on the habitats’ viability. Aim of this work is to detect significant precipitation changes by analyzing datasets from 5 nearby station for a time period of about 50 years. The results indicate statistically significant decreasing changes mainly at lower altitudes, and increasing at higher.
Heterotrophic growth of Chlorella vulgaris on crude glycerol
Authors: Papapolymerou Georgios , Gougoulias Nikolaos , Metsoviti Maria , Grigoriou Maria , Lamprakopoulos Stelios , Besios Anastasios
Published: November 2022

The heterotrophic growth of C. vulgaris using crude glycerol as the sole carbon source was studied in five 5L flasks. Air in each flask was provided at a rate of 300 L/hr and the contents were continuously stirred with a magnetic bar. Temperature, pH and initial inorganic nutrients (nitrogen, phosphorus, potassium and micronutrients) were kept the same in all flasks. The C/N ratio varied in each of the five flasks was set at 6, 13, 25.4, 61.5 and 118 respectively while the nitrogen initial concentration was equal to 45.4 mg/L in all flasks. The residual organic carbon was measured as a function of cultivation time. It was found that biomass growth rates as well the lipid and protein content were dependent on the C/N ratio. Lipid content was proportional to the C/N ratio while the protein content was inversely proportional to the C/N ratio. Carbon concentrations above 2500 mg/L inhibited the growth rate.
Fuzzy Relation Between The RDIst Index And The Water Table Of A Coastal Aquifer of Nestos Delta, Greece
Authors: Papadopoulos Christopher , Gkiougkis Ioannis , Spiliotis Mike , Pliakas Fotios , Papadopoulos Basil
Published: November 2022

Drought is a complicated natural extreme event associated with the decline of water availability below the normal conditions of a hydrological system, both from a temporal and from a spatial point of view. This work aims to assess the drought impacts on groundwater fluctuation in a shallow coastal unconfined aquifer via fuzzy approach. Meteorological drought intensity is estimated by the Standardized Reconnaissance Drought Index (RDIst) based on precipitation (P) and potential evapotranspiration (PET). In addition, groundwater modeling is carried out using MODFLOW and then, the simulated values of water table (WT) of a coastal unconfined aquifer are utilized. In order to relate the RDIst with WT, a fuzzy linear regression (FLR) is applied. FLR based on Tanaka model produces a fuzzy band, where all the data must be included within, incorporating the system uncertainty. The suitability of the achieved fuzzy regression model is tested by using appropriate measures. The propounded methodology is applied in the eastern area of Nestos River Delta, Prefecture of Xanthi, Greece.
A new sustainable approach in recovering Cobalt from “hard metal” production by-products
Authors: SERPE A. , Amadou Oumarou Amadou , DE GAUDENZI G. P. , MARCHESELLI G.C. , PIREDDA M.
Published: November 2022

The present work shows the capability of Maleic Acid solutions to tune the amount of Co in cemented carbide-based recovery powders with a Co content exceeding the threshold (10% Co) for industrial manufacturing in Hard Metal production and required by safety regulations. Maleic acid solutions react promptly and selectively in very mild conditions (0.5M, room temperature and pressure, EtOH as solvent) with Co contained in WC-Co sintered powders obtaining the [Co(Mal)2(H2O)4] compound almost quantitatively. Characterization of the resultant recovery powders (SEM-EDS, XRD) and reaction solutions (ICP-OES) after treatments confirmed the almost complete Co removal and high leaching efficiency. Recovery powders deprived of Co demonstrated proper quality to be re-employed in the production process. These results seem really promising in providing a novel, tunable and effective remediation of this hazardous industrial waste and preserve raw material depletion.
Biopolymer extraction assay from fungal biomass
Authors: Wassila ARBIA , Lydia ADOUR , Dihia AILI
Published: November 2022

The cultivation of Penicillium strain, isolated from rotten vegetables, on potatoe dextrose broth (PDB) medium enriched in arginine and mineral elements, allowed to obtain a yield of 31.7 mg/g of dry biomass and 9 mg/g of dry biomass into chitin and natural chitosan, respectively. The infrared spectroscopy analysis showed a great similarity between the infrared spectra of chitin and natural chitosan obtained and the commercial chitin and chitosan, respectively.
Understory evolution related to organic fertilization in a silvopastoral system established under Pinus radiata D. Don. in an acidic soil
Authors: MOSQUERA-LOSADA M.R. , RODRÍGUEZ-RIGUEIRO F.J. , SANTIAGO-FREIJANES JJ , RIGUEIRO-RODRÍGUEZ A. , FERREIRO-DOMÍNGUEZ N
Published: November 2022

Mixed pasture establishment is considered a key point to increase livestock production due to the higher quality it has compared with unmanaged shrubby species. They provide also a set of ecosystem services such as carbon sequestration and higher biodiversity. Moreover, herbaceous pasture establishment effectively contribute to biomass production while replacing shrubs therefore reducing forest fire risk. One of the main factors promoting the establishment of the herbaceous pasture are sowing and fertilisation. This study evaluates the understory composition evolution of a silvopastoral system established with cocksfoot and clover in an acidic forest soil under Pinus radiata D. Don with four treatments that consist of no fertilization, fertilization with mineral fertilizers (500 kg of mineral 8:24:16) and fertilization with three doses of sewage sludge (160, 320 and 480 kg N ha-1), in Galicia (NW Spain). Botanical composition data were analysed through species abundance diagrams in a time window of 20 years. Results shown clear evolution in understory composition from the initial situation. Organic fertilization was found to ease sown-mixture persistence on time as well as avoiding shrub colonisation with regard to mineral and no fertilization treatments. Nutritional and sun light high-demanding species were mostly replaced in favour of autochthonous ones after sewage sludge fertilization stopped and tree canopy intercepted light that reached the understory.
SOIL EROSION AS A CONSEQUENCE OF CLIMATE CHANGE
Authors: Hupková Daniela
Published: November 2022

The climate change and relevant negative impacts are currently widely discussed topic. The agricultural soil erosion represent the risks generated also by agricultural activities reflected in soil quality. Rapid climate change can cause the instability of most agricultural and forest ecosystems. Climate change is expected to affect the conditions under which agricultural production is done in many ways. In Slovakia, agricultural soils are potentially at risk of water erosion of varying intensity. Wind erosion is not a serious problem in Slovakia in recent years. Despite the fact that soil erosion level shows in Slovakia in recent period a slight decline however the adoption of soil conservation practices are necessary for future sustainability.
Methane Production and Waste Stabilization in Anaerobic Co-Digestion of Food Waste, Biosolids and Used Cooking Oil
Authors: Rollon Analiza , Ematong Edgar
Published: November 2022

Restaurants, food processing industries and café kitchen generate significant amounts of food waste (FW) and waste cooking oil. Septage treatment also generates large amount of biosolids. This study explores the application of anaerobic process, which generates methane, a renewable energy resource, to these wastes. The performance of batch anaerobic co-digestion of food waste, biosolids and waste cooking oil at varying waste ratio, namely 0, 30, 50 and 70 mass percent volatile solids (VS) was determined. The seed sludge used was a combination of cow rumen obtained from a slaughterhouse and pig manure. The waste mixture that did not contain waste oil yielded the highest amount of methane (61.5 mL g-1 VS), showed the highest VS destruction (48.51%) and rate of hydrolysis (first-order rate constant of 0.187 d-1). Rates of hydrolysis and methane production, methane yield and methane content of the biogas produced were lower at higher amounts of oil added but constant amount of seed sludge. Nevertheless, the mixture containing 70% waste oil produced 9.54 mL g-1 VS. Compared with other simple means of disposal, this method of the three kinds of wastes is a promising energy-generating option for treating food waste.
Elimination of relevant pharmaceuticals in hospital wastewater from Colombia by combination of a biological system with a sonochemical process
Authors: TORRES PALMA RICARDO , Serna-Galvis Efraim , Silva-Agredo Javier
Published: November 2022

This work presents the treatment of selected emerging concern pharmaceuticals in real hospital wastewater (HWW) from Tumaco-Colombia by combination of a biological system with a sonochemical process. Fifteen compounds, commonly present in HWW, were considered: acetaminophen, diclofenac, carbamazepine, venlafaxine, loratadine, ciprofloxacin, norfloxacin, valsartan, irbesartan, sulfamethoxazole, trimethoprim, clarithromycin, azithromycin, erythromycin and clindamycin. Initially, HWW was characterized in terms of global parameters and the pharmaceuticals content. HWW contained a moderate amount of organic matter (i.e., total organic carbon: 131.56 mg L−1 (C)) mainly associated to biodegradable components. However, the most of pharmaceuticals were found at levels upper than their predicted no effect concentration (PNEC). Then, a conventional biological treatment was applied to the HWW. After 36 h, such process mainly removed biode- gradable substances, but had a limited action on the pharmaceuticals. The resultant biotreated water was submitted to the sonochemical process (375 kHz and 88 W L−1, 1.5 h), which due to its chemical (i.e., radical attacks) and physical (i.e., suspended solids disaggregation) effects induced a considerable pharmaceuticals degradation (pondered removal: 58.82%), demonstrating the complementarity of the proposed combination. Afterwards, Fe2+ (5 ppm) and UVC light (4 W) were added to the sonochemical system (generating sono-photo-Fenton pro- cess), which significantly increased up to 82.86% the pondered pharmaceuticals removal.
A pilot test in Eastern Bohemia for chlorinated aliphatic hydrocarbons groundwater remediation
Authors: WACŁAWEK S. , ČERNÍK M. , Silvestri D. , STEJSKAL V. , VLKOVA D. , KVAPIL P. , KOHOUT P. , HRABAK P.
Published: November 2022

The bioremediation of chlorinated solvents is considered as cheap and eco-friendly approach, among the bioremediation techniques the stimulation of organohalide-respiring bacteria by adding substrates is considered as one of the most popular methods. Application of cheese whey was performed in three separate rounds via direct-push technique. Monitoring of groundwater was performed once before the first injection of cheese whey in November 2017 and then monthly until April 2019. Groundwater samples were analyzed for chlorinated ethenes, its bioremediation byproducts and this analysis were correlated with the biological activity on the site that was assessed with the use of PCR and next-generation sequencing tests.
Emissions of volatile organic compounds from flex printing facility
Authors: Savic Branko , Tanovic Petra , Janjic Nenad
Published: November 2022

The present study was undertaken to investigate, the level of volatile organic compounds (VOCs) in working zone of flex printing facility in Novi Sad, Serbia. The levels of VOCs were determined at four sampling position: at the machine; at a distance of 3 m from the machine; at the outlet of machine, entrance in digester and at the exit of the digester. The quantitative determination of VOCs compounds was performed using portable Voc Pro Photovac. The VOCs concentrations varied within 8h sampling period and they differ between sampling position. The highest concentration was measured at the outlet of machine, entrance in digester, while the lowest at a distance of 3 m from the machine.
The obtained levels of VOCs exceed their level advised by OSHA and NIOSH standard. Therefore, this paper provide propositions on improving the process of flexographic printing, and therefore, human health and environmental.
Hierarchization of pure silica LTA zeolite
Authors: Tarach Karolina , Valencia Susana , Góra-Marek Kinga , Rey Fernando
Published: November 2022

The effect of base leaching on pure silica ITQ-29 zeolite being the counterpart of LTA zeolite, was investigated. The extent of the desilication process over pure silica zeolite was controlled by partial detemplation followed by silicon extraction. The potential of hierarchically porous ITQ-29 zeolite in environmentally friendly applications concern selective adsorption of organic molecules in aqueous environments. The introduction of additional porosity by desilication process offers full usage of zeolite grains volume without diffusional limitations during the adsorption process.
European environmental compulsory framework on shipping and ports
Authors: KOTRIKLA ANNA MARIA , Andrea Veronika , Nikitakos Nikitas , Stylios Chrysostomos
Published: November 2022

The European Maritime transport policy has embraced important environmental protection schemes that are directly or indirectly connected to shipping and port performance. A comprehensive database on the European Union (EU) environmental policy for the last 30 years has been attempted concerning mainly shipping and ports in terms of mandatory secondary law. The regulatory instruments were classified according to their subject; while, the main patterns were identified and the connections with the International Maritime Organization (IMO) framework were highlighted. The major findings disclose a complementary operation by both IMO and EU.
A comparative analysis between EU MRV and IMO DCS – the need to adopt a harmonised regulatory system
Authors: Boviatsis Michael , Tselentis Basil
Published: November 2022

This paper analyses and compares the two methods proposed for monitoring, reporting and verifying CO2 emissions from shipping, namely the European Union MRV Regulation (EU 2015/757) and the Global Data Collection System of the IMO for fuel oil consumption of ships adopted as an amendment to MARPOL Annex VI in 2016. The two systems differ considerably in many aspects, such as, for example, the IMO DCS requires the reporting of ships' fuel consumption data, while the EU MRV involves the reporting of CO2 emission; the weight of cargo carried and energy efficiency. As recently as February 2019, efforts have been made to achieve a harmonised approach to both systems, thus supporting compliance and minimising extra administrative costs incurred on shipping companies. The EU MRV system maintains the provisions on publication of individual ships’ data of CO2 emissions and energy efficiency, thus keeping transparency as one of its key advantages.
Prediction of Algal Bloom Occurrence in Laguna Lake, Philippines using Artificial Neural Networks (ANN)
Authors: Esguerra Givette Kristine , Ballesteros Florencio
Published: November 2022

Algal blooms pertain to an undesirable formation of unicellular freely-floating algal scum caused by the rapid growth of phytoplankton, which can become a hazard for the water body ecosystem. Laguna Lake serves as both a source of livelihood and water supply for the residents in the region and the risk of algal blooms should be detected for safe and efficient management. The research presents a method for predicting the amount of phytoplankton to alert the monitoring agencies of incidences of high phytoplankton as a scalable and inexpensive early-warning tool. The study focuses on the development of a prediction model based on water quality parameters measured by the Laguna Lake Development Authority (LLDA) from 2008 to 2018: nitrate, orthophosphate, water temperature, turbidity, chlorophyll-a, and phytoplankton counts. The system predicts the phytoplankton counts of the next month using three months of previous values of the water quality parameters, modeled through the multilayer perceptron neural network method. The research uses a walk-forward validation method to obtain the root-mean-square-error (RMSE) of the model. The model was used on three stations and these predicted values that had statistically less RMSE than the ordinary least square regression.
Biomining - recovery of high-tech critical metals
Authors: BUTU Marian , BUTU Alina , RODINO Steliana
Published: November 2022

Critical metals were defined as those metals essential for high-tech, medical and defense industry but with low availability due to uneven geographical distribution, thus resulting a high price volatility. The challenge of the future is to assure a stable supply of critical materials and implicitly of critical high-tech metals and this will be possible through multiple approaches such as intelligent mining, urban mining, extensive recycling and reutilization. The reports of EU commission regarding critical raw materials will be reviewed. In the same time, potential alternative sources and possible new biotechnologies for the future will be explored. Extraction of metals by means of microorganisms is an established biotechnology and is applied worldwide for processing of sulfidic low-grade ores. The mineral processing using microorganisms has been extended for copper, gold, nickel, cobalt, zinc, and uranium. Here, we shall explore the possibility of biomining for the recovery of critical metals from secondary sources.
Environmental and Economic LCI of a micro-CPV module
Authors: SAN MIGUEL G. , ABAD D. , DOMÍNGUEZ C. , JOST N. , GUTIÉRREZ F.
Published: November 2022

Despite the renewable nature of solar energy, the sustainability of photovoltaic (PV) systems needs to be evaluated in order to minimize adverse environmental impacts and optimize economic performance. This piece of research represents a first approach to produce an environmental and economic assessment of a 1.0 m2 (350 W) micro concentrator PV (microCPV) module designed at Institute of Solar Energy (IES-UPM) in Spain. The incorporation of concentrating lenses allows this technology to produce electricity from direct solar radiation at higher efficiencies than conventional PV cells. The aim of this work is to propose a representative architecture for the micro-CPV system that allows the quantification of a material, energy and economic Life Cycle Inventory (LCI), as the basis to conduct a Life Cycle Cost Assessment (LCC) and an Environmental Life Cycle Assessment (LCA)
Novel Polyethersulfone (PES) Alpha-Zirconium Phosphate (α-ZrP) Ion Exchange Mixed Matrix Membranes for Effective Removal of Heavy Metals from Wastewater
Authors: HASAN S. , ABDULKARIM E. , IBRAHIM Y. , NADDEO V. , BANAT F.
Published: November 2022

In this study, novel polyethersulfone (PES) alpha-zirconium (α-ZrP) ion exchange mixed matrix membranes were fabricated via phase inversion method using nano-sized alpha-zirconium phosphate (α-ZrP-n) and polyvinylpyrrolidone (PVP) as dispersant nano-additives in the dope solution preparation. The impact of α-ZrP-n loading on the removal of Cu(II), Zn(II), and Ni(II) from wastewater effluent was studied by varying the α-ZrP-n concentrations from 0.1 up to 1 wt.% while fixing the PES concentration at 10 wt.%. The composite membranes surface morphology was characterized using scanning electron microscopy (SEM) and contact angle. The pure water flux was also determined under vacuum filtration while the removal of all heavy metals was carried out via the inductively coupled plasma - optical emission spectrometry (ICP-OES). The optimal results incorportaing 0.3 wt.% α-ZrP (i.e. Z-2 membrane) showed 98, 86, and 99% removal efficiency of Cu(II), Zn(II), and Ni(II); respectively, and a water flux of 3013.5 L/m2h (MH) that was higher than that reported using the pristine PES membrane (i.e. 985 LMH). These findings suggested that the use of α-ZrP nanoparticles in membranes offers significant potential in heavy metal removal with a considerable high water flux.
The Agia Zoni II oil spill: Short-term fate and imprint on the marine ecosystem of the Saronikos Gulf, Greece
Authors: Parinos Constantine , Hatzianestis Ioannis , Chourdaki Styliani , Plakidi Elvira , Gogou Alexandra
Published: November 2022

Herein we examine the spatial and temporal imprint of the September 2017 Agia Zoni II tanker heavy fuel oil spill on the marine ecosystem of the Saronikos Gulf, Greece. Based on the chemical fingerprinting approach, by means of gas chromatography - flame ionization detector and gas chromatography–mass spectrometry and the use of various diagnostic ratios, we characterize changes in the composition of the spilled oil across sampling sites and evaluate major mechanisms affecting its fate i.e. dissolution/dispersion, evaporation, biodegradation, photo-oxidation and sediment accumulation during the first six months from the spill. Overall, the main effects of the incident were confined to the coastal zone during the first three months after the spill, where an extended petroleum imprint was recorded in many cases with determined total petroleum hydrocarbons and polycyclic aromatic hydrocarbons concentrations falling within the highest range of concentrations previously reported in similar oil spill incidents worldwide. In the first three months following the spill the oil was affected by a combination of rapid biodegradation, volatilization processes and photodegradation, the later playing a role in its early days weathering. Regarding sediments, an imprint related to the incident was recorded in some cases but mild in respect to the high chronic petroleum-associated anthropogenic background of the affected area.
The importance of water for life on the planet: Education for Global Citizenship
Authors: Tzaberis N.
Published: November 2022

The water shortage observed is due to the fact that the environment has undergone significant interventions that led to a qualitative degradation of water resources, overexploitation, pollution, the dropping of water level, salivation of aquifers, etc. The prevailing situation seems to be perpetuated possibly due to the interests involved, attitudes, perceptions, and lack of awareness of the seriousness of the problem. In order to solve the problem through Education for Sustainable Development, this paper is an exploratory tool of a broader research aiming to record the knowledge and views of the sample in order to develop the appropriate educational programme on issues related to the environment, water pollution, tackling water pollution, water scarcity and wastewater recovery systems. The results of the survey show that students have poor knowledge of water scarcity, water pollution, and how to deal with them, as well as the role of wastewater treatment in integrated water management.
WEEE preparing for reuse in Greece: potential and initiatives
Authors: Abeliotis Konstadinos , Boikou Konstantina , Kalafata Konstantina , Terzis Evangelos , Chroni Christina , Angelakopoulos Haris , Lasaridi Katia
Published: November 2022

This paper presents one of the core deliverable reports of the LIFE-REWEEE project, the “Mapping Electrical and Electronic Equipment (EEE) reuse and WEEE preparing for reuse practices and initiatives in Greece”. The main goal of this report was – for the first time in Greece – the development of a reliable and updated baseline regarding the current conditions on (W)EEE reuse and preparing for reuse in Greece (i.e. practices and initiatives). The study evolved into two parallel axes: i) Collection, assessment and analysis of data from reliable sources, and ii) Investigation of the impact of economic crisis in Greece on WEEE generation.
Anaerobic co-digestion of poultry manure and used cooking oil for enhanced biogas production
Authors: Eftaxias Alexandros , Aivasidis Alexander , Gkalimanis Prodromos , Koskinari Maria , Koumara Alexandra , Diamantis Vasileios
Published: November 2022

Aim of this study was to evaluate the anaerobic co-digestion of diluted poultry manure (DPM) and used cooking oil (UCO). Mixtures of DPM with different UCO dosages (1 to 6% v/v) were prepared using a high-shear emulsifier and digested in batch anaerobic reactors. Increasing the UCO dosage resulted in a respective increase of the emulsion COD (from initially 64 to 182 g/L) however the stability of the emulsion was adversely affected. The optimum UCO dosage (1.5-2.0% v/v) was further digested in a semi-continuous mesophilic anaerobic reactor, to assess the feasibility of the process at OLR up to 8 g/Ld. The anaerobic reactor was stable, giving a biogas yield of 0.45 L/gCOD, with low supernatant COD (6 g/L), negligible VFA accumulation and without foaming.
Biological activity of flufenamic acid and synthesized derivates (PFCs) that may occur in the environment
Authors: Šilha D. , Šilarová P. , Weidlich T.
Published: November 2022

Polyfluorinated compounds (PFCs) are used in the field of pharmaceuticals, pesticides, impregnating agents, etc. These are predominantly compounds that are difficult to degradate in the environment, and therefore are highly persistent. Many these compounds are known to have toxic effects and thus a negative effect on humans and the entire ecosystem. PFCs include, for example, flufenamic acid (antipyretic). The aim of the study is to verify the biological activity of flufenamic acid and derivatives prepared from this initial compound by organic synthesis. Flufenamic acid is a known substance, however the prepared derivatives are chemical compounds that have not been described and characterized in detail.
In the synthesis of prepared compounds, whose structure was confirmed by NMR spectroscopy, antimicrobial potential was tested against a wide range of microorganisms by the disc diffusion method and microdilution method in microtiter plates. Some antimicrobial properties of some of the prepared derivatives have been found to be close to the antimicrobial effect of the previously described and known antibiotic agents. These are significant and extremely stable pollutants in the environment, which, however, may have interesting antimicrobial properties according to the obtained results.
Screening thousands of emerging contaminants in Asopos river basin by UPLC-QToF-MS
Authors: Thomaidis Nikolaos , Nikolopoulou Varvara , Nika Maria-Christina , Aalizadeh Reza , Alygizakis Nikiforos
Published: November 2022

Monitoring activities over several decades have revealed the ubiquitous presence of organic contaminants in environmental compartments. Asopos river basin, located in Sterea Ellada, has been the focus of many environmental studies over the last decades, mainly due to its geomorphology and the extensive industrial activities that take place in this territory. The detection of high Cr(VI) concentrations, causing potential carcinogenic effects, have attracted the attention of media and raised the consciousness of the citizens. Although there are many studies in recent literature focusing on the occurrence of heavy metals in Asopos river basin, there is a lack of information concerning the presence of emerging contaminants. The aim of this study is the determination of thousands of emerging contaminants in the environmental samples (river water and sediments) form Asopos river basin, following wide-scope target screening methodologies. Solid-Phase Extraction (SPE) by mixed-mode sorbent was used during the sample preparation of river water samples to ensure the extraction of various classes of compounds with a wide range of physicochemical properties. The extracts were analyzed by complimentary chromatographic techniques, including Reversed Phase (RP) and Hydrophilic Interaction Liquid Chromatography (HILIC) coupled to Quadrupole-Time-of-Flight Mass Spectrometry (QToF-MS). Moreover, the application of suspect and non-target screening, using advanced chemometric techniques, will provide a holistic view of the pollution in the area under investigation.
Immobilized rGO/TiO2 photocatalyst for water purification
Authors: Rathousky Jiri , Zouzelka Radek , Brabec Libor , Remzova Monika
Published: November 2022

The preparation of immobilized graphene–based photocatalyst layers is highly desired for environmental applications. In this study, the preparation of an immobilized reduced graphene oxide (rGO)/TiO2 composite by electrophoretic deposition (EPD) was optimized. It enabled quantitative deposition without sintering and without the use of any dispersive additive. The presence of rGO had beneficial effects on the photocatalytic degradation of 4-chlorophenol in an aqueous solution. A marked increase in the photocatalytic degradation rate was observed, even at very low concentrations of rGO. Compared with the TiO2 and GO/TiO2 reference layers, use of the rGO/TiO2 composite (0.5 wt% of rGO) increased the first-order reaction rate constant by about 70%. This enhanced performance was due to the increased formation of hydroxyl radicals that attacked the 4-chlorophenol molecules. The direct charge transfer mechanism had only limited effect on the degradation. Thus, EPD-prepared rGO/TiO2 layers appear to be suitable for environmental application.
The role of End of Waste Criteria in the Framework of Circular Economy Strategy
Authors: Zorpas Antonis
Published: November 2022

More than 1.8 billion tonnes of waste are produced each year in Europe. This equals to 3.5 t per person and are mainly produced from commercial activities (e.g. shops, hospitals, restaurants), industry (e.g. clothes manufacturers, pharmaceutical companies), agriculture (e.g. slurry), construction and demolition projects, mining and quarrying activities from energy production as well as from household activities. Waste can be divided into several categories: municipal waste (including household and commercial), industrial waste (including manufacturing), hazardous waste, construction and demolition waste, mining waste, waste from electrical and electronic equipment (WEEE), biodegradable municipal waste, packaging waste, end-of-life vehicles and tires, agricultural waste. Article 6 in WFD (2008/98) defines that those wastes must be reduced as well as contain provisions to define end-of-waste criteria (EWC) that provide a high level of environmental protection and an economic benefit. Qualifications and requirements should be established in agreement with certain conditions described in the directive to check if specific waste streams have reached an end-of-waste (EoW) status. The main goal of EWC is to remove and eliminate the administrative loads of waste legislation for safe and high-quality waste materials, thereby facilitating and assisting recycling. The target is to produce effective with high quality of recyclables materials, promoting product standardisation and quality and safety assurance, and improving harmonisation and legal certainty in the recyclable material markets. At the same time EWC aim to develop a strategy plan in order to improve the expansion, progress and wider use of environmental technologies, which reduce pressure on environment and at the same time address the three dimensions of the Lisbon Strategy on growth, jobs and environment. EWC could be useful toll in the framework of circular economy strategy as affect several management systems, industrial processing, clean technologies. The presentation will analysis the role of EWC in the framework of Circular Economy through several case studies such as Tire Pyrolysis Oil, Compost etc.
Asuhan Keperawatan Pada Ny.I Dengan Fibroadenoma Mamae Didesa Teratak Kecamatan Bangkinang Tahun 2020
Authors: Harahap Dini Rahmaini , Hamidi M.Nizar Syarief
Published: November 2022

Berdasarkan data World Health Organization (2014) diperkirakan bahwa lebih dari 508.000 wanita di seluruh dunia meninggal pada tahun 2011 karena kanker payudara dan Fibroadenoma mammae (FAM). American Cancer Society memperkirakan di Amerika Serikat pada tahun 2015 terdapat sekitar 231,840 kasus baru kanker payudara dan Fibroadenoma mammae (FAM) invasif yang didiagnosis pada perempuan, 60.290 kasus baru karsinoma in situ (CIS) yang di diagnosis (karsinoma in situ (CIS) adalah non invasif dan merupakan bentuk awal dari kanker payudara), serta sekitar 40.290 perempuan meninggal dengan kanker payudara dan Fibroadenoma mammae (FAM). Fibroadenoma mammae adalah tumor jinak pada payudara yang bersimpai jelas, berbatas jelas, soliter, berbentuk benjolan yang dapat digerakkan. Fibroadenoma mammae umumnya dikenal dengan tumor mammae. Desain penelitian adalah suatu rencana tentang bagaimana mengumpilkan dan mengolah data agar penelitian yang diharapkan dapat tercapai (Sujarweni, 2014). Adapun jenis penelitian ini adalah deskriptif dalam bentuk studi kasus.Studi kasus merupakan rancangan penelitian yang mencakup pengkajian secara intensif misalnya satu klien, keluarga, kelompok, komunitas atau institusi ( Nursalam, 2014). Hasil penelitian didapatkan bahwa gambaran nyata pelaksanaan asuhan keperawatan keluarga pada Ny.I, dengan permasalahan FAM ,mulai dari pengkajian, analisis data, penegakan diagnosis keperawatan, implementasi sampai dengan evaluasi. Diharapkan dapat memberikan suatu masukan untuk teori dan menambahkan hasil informasi ilmiah yang berhubungan dengan asuhan keperawatan pada pasien FAM

Kata kunci: Asuhan keperawatan, Fibroadenoma mamae
ASUHAN KEPERAWATAN PADA AN.Z DENGAN DHF (DENGUE HEMOGRAGI FEVER) DI RSIA HUSADA BUNDA SALO TAHUN 2020
Authors: Anggraini Laras , Apriza Apriza
Published: November 2022

ABSTRAK

Demam berdarah dengue (dengue hemoragic fever) adalah penyakit infeksi yang disebabkan oleh virus dengue dengan manifestasi klinis demam, nyeri otot atau nyeri sendi yang disertai leukopenia, ruam, limfadenopati, trombositopenia dan ditesis hemoragik.Tujuan karya tulis ilmiah ini untuk menggambarkan asuhan keperawatan pada An.Z dengan dengue hemorhagic fever (DHF) di RSIA Husada Bunda Salo Tahun 2020. Metode yang digunakan dalam penyusunan karya tulis ilmiah ini adalah deskriptif dengan metode pendekatan studi kasus pada 1 klien DHF. An.Z deman selama 3 hari, demam naik turun. Diagnosa yang muncul pada An.Z yaitu perdarahan lebih lanjut berhubungan dengan trombositopenia, peningkatan suhu tubuh (hipertermi) berhubungan dengan proses infeksi virus dengue dan gangguan pemenuhan kebutuhan nutrisi kurang dari kebutuhan berhubungan dengan asupan nutrisi yang tidak adekuat. Intervensi keperawatan An.Z sesuai NIC NOC. Implementasi yang dilakukan yaitu monitor TTV pemantauan tanda-tanda perdarahan dan pemantauan hasil laboratoium hemoglobin, hematokrit, leukosit serta trombosit, pemantauan ketat TTV setiap 4 jam, melakukan kompres air hangat, pemberian diit, motivasi agar menghabiskan diitnya .Evaluasi pada An.Z sudah tidak terjadi perdarahan, TTV pasien : Td :99/66 N: 92 Rr: 20 S: 36,5Â°C dan pasien nafsu makan .

Kata Kunci : DHF, Asuhan keperawatan
ASUHAN KEPERAWATAN PADA Ny. S DENGAN DIABETES MELLITUS TIPE II DI DUSUN MATOLUOK DESA BINUANG BANGKINANG
Authors: Natasya Nurul , Alini Alini
Published: November 2022

ABSTRAK

Diabetes mellitus tipe II adalah tubuh tidak mampu memanfaatkan insulin secara efektif. Terjadinya diabetes mellitus tipe II disebabkan oleh tubuh yang tidak mampu menyerap gula darah yang diakibatkan oleh pankreas sedikit menghasilkan insulin ataupun tidak dapat menghasilkan insulin sama sekali. Data didapat dengan cara langsung mengunjungi ke tempat kediaman klien. Karya Tulis Laporan Kasus ini bertujuan untuk mengetahui asuhan keperawatan pada penderita diabetes mellitus tipe II. Desain penelitian dalam studi kasus ini menggunakan pendekatan penelitian secara deskriptif. Subjek pada studi kasus ini yaitu menggunakan satu orang pasien sesuai dengan kriteria inklusi dan ekslusi yang telah ditetapkan. Data diperoleh dengan melakukan pengkajian secara langsung dan wawancara kepada pasien. Hasil pengkajian di dapat data klien menderita diabetes mellitus tipe II. Analisis data di dapat 3 diagnosa keperawatan yaitu nyeri berhubungan dengan adanya ulcus (luka diabetes mellitus), ketidakseimbangan nutrisi kurang dari kebutuhan tubuh berhubungan dengan ketidak cukupan insulin, penurunan masukan oral, hipermetabolisme, dan resiko infeksi berhubungan dengan penurunan fungsi leucosit/gangguan sirkulasi. Perencanaan keperawatan adalah pemeriksaan gula darah sewaktu menyangkut kesembuhan luka, mengidentifikasi tanda dan gejala infeksi, melakukan perawatan luka ganggren dengan prinsip steril dan melakukan inspeksi terhadap perkembangan luka. Kesimpulan studi kasus ini mendapat gambaran tentang asuhan keperawatan pada Ny. S dengan diabetes mellitus tipe II.

Kata kunci : Diabetes mellitus tipe II, Asuhan Keperawatan
ASUHAN KEPERAWATAN PADA AN.H DENGAN DEMAM BERDARAH DENGUE (DBD) DI RUANG ALI RSUD BANGKINANG
Authors: Vivi Alvionita Vivi Alvionita , Yennysafitri Yenny Safitri
Published: November 2022

Demam berdarah dengue (DBD) merupakan suatu penyakit epidemik akut yang disebabkan oleh virus yang ditransmisikan oleh Aedes aegypti dan Aedes albopictus. Kedua nyamuk dapat menggigit di pagi hari sampai sore menjelang petang. Penyebab utama DBD adalah virus dengue yaitu dari kelompok arbovirus B, sedang sebagai vektornya adalah melalui Arthropoda sepertinya nyamuk dan lalat. Di Indonesia yang paling banyak sebagai vector virus dengue adalah jenis nyamuk aedes aegypti betina dan aedes albopictus. Pasien AN.H sebelum masuk rumah sakit klien mengeluh panas, batuk-batuk, sakit kepala. Klien diberi minum obat parasetamol, panas turun tapi tak lama kemudian naik lagi sampai 40 C. Hasil pengkajian melalui proses keperawatan dari tanggal tanggal 15 Agustus 2020 sampai dengan 17 Agustus 2020 yaitu : Sebelum masuk Rumah Sakit klien mengeluh panas, batuk, sakit kepala. Klien diberi minum obat paracetamol, panas turun tapi tak lama kemudian naik lagi sampai 40 c. Klien mengatakan terdapat bintik-bintik merah di tangan dan kaki anak, nafsu makan menurun ada mual dan muntah 2x, klien tampak lemah, berat badan pasien turun sebanyak 2 kg, sebelum sakit berat badan pasien 27 kg setelah pasien sakit dan dirawat di Rumah Sakit berat badan pasien menjadi 25 kg. ibu tidak tahu mengenai penyakit DBD dan pencegahannya. Pada kasus DBD An.H peneliti menetapkan berdasarkan prioritas masalah pada diagnosa keperawatan dengan menegakkan diagnose yang muncul yaitu :Resiko gangguan nutrisi kurang berhubungan dengan nafsu makan yang menurun,Kecemasan orang tua berhubungan dengan kurangnya pengetahuan tentang DBD.
EFEKTIFITAS PEMBERIAN NUTRISI ENTERAL ANTARA METODE INTERMITTENT FEEDING DENGAN GRAVITY DRIP TERHADAP VOLUME RESIDU LAMBUNG PADA PASIEN KRITIS DI RUANGAN ICU AULIA HOSPITAL PEKANBARU
Authors: Rennita Hutagaol , Syarif Hamidi Nizar
Published: November 2022

Pemberian Nutrisi enteral (EN) pada pasien kritis di ruangan ICU dapat diberikan dengan metode intermittent feeding dan gravity drip. Metode Intermitent feeding diberikan secara bertahap 20-60 menit setiap 3-6 jam dengan menggunakan pompa elektronik. Metode gravity drip diberikan secara gravitasi bumi dengan menggunakan chateter tip selama periode 4-10 menit. Tujuan penelitian ini adalah untuk membandingkan kedua metode ini yang mana yang lebih efektif terhadap volume residu lambung pada pasien kritis. Jenis penelitian ini adalah kuantitatif dengan design penelitian Quasi eksperimen dengan post test only control group design. Penelitian dilakukan di Ruangan ICU Aulia Hospital Pekanbaru selama 20 hari pada tanggal 16 Maret sampai dengan 4 April 2019. Pengambilan sampel dilakukan dengan cara Consecutive sampling. Sampel dalam penelitian ini berjumlah 30 responden dan setiap 1 responden dilakukan 2 intervensi yang diobservasi selama 4 hari dan hasil volume residu lambung di catat dalam lembar observasi, tetapi volume residu lambung yang di bandingkan adalah residu hari ketiga dan hari ke empat. Analisa yang digunakan adalah analisa univariat dan bivariate dengan uji paired sampel T test dependent. Hasil uji menunjukkan bahwa nilai rata-rata metode intermittent feeding berjumlah 16,02 ml, minimum 0 dan maximum 61 dan jumlah rata-rata metode gravity drip adalah 171,13 ml, min 50 dan max 485 dengan (p= 0.000). Secara signifikan terdapat perbedaan antara metode intermittent feeding dengan gravity drip. Metode intermittent feeding lebih efektif dari pada gravity drip terhadap volume residu lambung pada pasien kritis di ruangan ICU Aulia Hospital Pekanbaru, dan diharapkan kepada petugas kesehatan diruangan ICU Aulia Hospital sebaiknya mulai menerapkan metode intermittent feeding pada pasien ICU.
HUBUNGAN PENGETAHUAN DAN SIKAP PERAWAT DALAM MENGIDENTIFIKASI PASIEN DENGAN PELAKSANAAN IDENTIFIKASI PASIEN DI RUANG RAWAT INAP AULIA HOSPITAL PEKANBARU
Authors: Desilawati Desilawati , Alini Alini , Isnaeni Lira Mufti Azzahri
Published: November 2022

Identifikasi pasien menjadi masalah bila tidak dilakukan, resiko yang timbul menyebabkan kecacatan bahan kematian pasien jika tidak dilaksanakan, dan menimbulkan kerugian besar bagi intansi pelayanan kesehatan. Mengembangkan budaya melakukan identifikasi menjadi sangat sulit ketika perawat belum mendapatkan informasi pentingnya identifikasi pasien. Tujuan penelitian untuk mengetahui hubungan pengetahuan dan sikap perawat dalam mengidentifikasi pasien dengan pelaksanaan identifikasi pasien di ruang rawat inap Aulia Hospital tahun 2019. Penelitian dilaksanakan tanggal 9 sampai 12 Mei 2019. Jenis penelitian kuantitatif dengan desain penelitian cross sectional. Populasi penelitian seluruh perawat ruang rawat inap Aulia Hospital dengan sampel 52 perawat dan teknik pengambilan sampel menggunakan total sampling. Analisa data dengan uji Chi-square, hasil penelitian ini diketahui pengetahuan kurang sebanyak 25 (56.1%), perawat yang bersikap negatif 25 (56.1%) serta pelaksanaan identifikasi dalam kategori kurang 18 (72,0%). Berdasarkan uji Chi-square pada tingkat kemaknaan 95% (Î± 0.05) menunjukkan ada hubungan antara pengetahuan perawat (p value 0.029) tentang identifikasi pasien dengan pelaksanaan Identifikasi pasien. Dan ada hubungan antara sikap perawat (p value 0.029) tentang identifikasi pasien dengan pelaksanaan identifikasi pasien. Diharapkan perawat dapat menambah wawasan mengenai identifikasi dengan pelatihan/diklat, sehingga dapat tercipta rasa tanggung jawab dan sikap yang dalam pelaksanaan identifikasi pasien.
PERBEDAAN POLA MAKAN SAAT PUASA SUNNAH DENGAN STATUS GIZI DI PONDOK PESANTREN
Authors: Damayanti Amilia Yuni , Zahro Rochmatul Khamidah , Sari Fitri Komala
Published: November 2022

Background: At this time, Indonesia has 8,1% of adolescents aged 16-18 years with thin and very thin condition. Meanwhile 13,5% of them are having overweight and obesity. The difference of eating patterns while fasting can affect the energy balance and body fat composition and will reduce the amount of nutritional intake that enters into the body. This research was conducted to find out the differences in eating patterns of fasting Daud, Monday â€“ Thursday, not fasting, related to the nutritional status of Boarding School Students. Methods: This study used a cross sectional study. Measurement of eating patterns used a FFQ. The nutritional status based on the value of BMI/age results. The population used were students in the boarding school, aged around 16-18 years. The sampling technique used a quota sampling. Data analysis used Chi-Square, Mann-Whitney, and Kruskal-Wallis Comparative test. Results: The result of this study showed that the majority of Boarding School students had normal nutritional status as much as 84.8% (84 respondents), and they had an adequate of eating pattern as much as 43.4% (43 respondents) of 99 respondents. Conclusion: There was no significant difference in eating patterns of fasting Daud, Monday-Thursday, and not fasting with nutritional status at Boarding School (p=0.280).
HUBUNGAN PERSONAL HYGIENE DENGAN KEJADIAN SKABIES DI PANTI ASUHAN PUTRA MUHAMMADIYAH BANGKINANG
Authors: Rahmi Ema rahmi , Hidayat Ridha
Published: November 2022

Skabies adalah penyakit menular yang disebabkan oleh adanya infestasi Sarcoptes scabiei varian hominis pada kulit yang ditandai dengan adanya gatal dan erupsi kulit. World Health Organization (WHO) menyatakan sebanyak 300 juta orang di dunia setiap tahunnya dilaporkan terserang scabies. Tujuan dari penelitian adalah mengetahui hubungan personal hygiene dengan kejadian skabies di Panti Asuhan Putra Muhammadiyah Bangkinang tahun 2019. Jenis penelitian ini adalah kuantitatif dengan desain cross sectional study. Penelitian ini dilakukan pada tanggal 10-15 Februari 2020 dengan jumlah responden 56 orang dengan menggunakan teknik total sampling. Populasi pada penelitian ini adalah seluruh anak yang tinggal di Panti Asuhan Putra Muhammadiyah Bangkinang sebanyak 56 orang. Analisa data yang digunakan adalah analisa univariat dan bivariat dengan uji Chi Square. Hasil penelitian ini didapatkan ada ada hubungan yang signifikan antara personal hygiene (p value= 0,002) dengan kejadian skabies. Kesimpulan terdapat hubungan personal hygiene dengan kejadian skabies di Panti Asuhan Putra Muhammadiyah Bangkinang tahun 2019. Disarankan hendaknya pihak panti asuhan bekerjasama dengan Puskesmas terdekat untuk mengadakan pemberian pendidikan kesehatan tentang personal hygiene memberikan dampak positif, yaitu peningkatan pengetahuan tentang personal hygiene berujung pada tingkah laku atau tindakan dalam pemeliharaan diri yang baik, sehingga angka kejadian skabies di Panti Asuhan Putra Muhammadiyah Bangkinang dapat ditekan seminim mungkin.