Advances in Environmental and Engineering Research最新文献

{"title":"Recycling Potential in the European Union (EU) of Low Voltage Three-Phase Induction Motors Up to 75 kW of Power: Quantitative Analysis","authors":"M. Torrent","doi":"10.21926/aeer.2302032","DOIUrl":"https://doi.org/10.21926/aeer.2302032","url":null,"abstract":"This article quantifies the recycling potential of the metallic materials that make up three-phase induction motors. The data on the use of electric motors by type and power determines that the most significant recycling potential lies in this low-voltage motor which powers up to 75 kW. The work aims to show the possibility of such recycling in the European Union (EU). The metals used to make the various parts of the induction motor and the main recycling methods that allow their reuse are listed. It evaluates which part of the motor can apply these recycling methods relatively easily (stator) and which part is more complex (rotor). A calculation process is used to exhaustively quantify the metals that incorporate different motors selected for other powers to determine the amounts of material that can be recycled and reused to manufacture new equipment. The recycling potential is quantifies by parts (stator and rotor) employing approximate equations obtained from the study and by materials (copper, aluminum, magnetic sheet, steel). The data calculated, the economic volume, the possibilities of energy-saving, and the environmental advantages of dedicating efforts and resources for collecting, recycling, and reusing the materials in three-phase induction motors for industrial applications show. The withdrawal of electric motors in industrial applications, due to causes related to the restructuring of production processes, manufacturing systems, breakdowns, or directly due to aging, generates considerable possibilities of reusing the metals used in their manufacture.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114786499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Laccase: A Green Solution for Environmental Problems","authors":"S. Sondhi, N. K. Chopra, Aditya Kumar, N. Gupta","doi":"10.21926/aeer.2302030","DOIUrl":"https://doi.org/10.21926/aeer.2302030","url":null,"abstract":"A multicopper oxidase, laccases catalyze the four-electron reduction of the substrate with the use of molecular oxygen. Laccases are abundant in nature and can be found in virtually every form of life on the planet. Generally speaking, laccases are classified into three types: blue, white, and yellow. Plant, bacterial and fungal laccases all have the same trinuclear copper site for substrate reduction. Non-phenolic as well as phenolic molecules are both capable of being catalyzed by this enzyme. Laccases are used in a wide range of industries that make use of phenolic chemicals. Laccases have been the subject of recent research because of their unique features. Laccase, its sources, manufacture, purification, and applications in many sectors are discussed in length in this review.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127590934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"N2O Emission Pattern in A Legume-Based Agroecosystem","authors":"B. Nicolardot, Maé Guinet, A. Voisin, C. Hénault","doi":"10.21926/aeer.2302029","DOIUrl":"https://doi.org/10.21926/aeer.2302029","url":null,"abstract":"Legumes provide several ecological services to agroecosystems, but there is a lack of references on services related to N flows for a wide range of legume crops. N2O emissions were measured in two field experiments using a two-year legume-cereal crop sequence. In the first year (2014 and 2016), different legume crops were grown (lupin, pea, fava bean, common bean, soybean, chickpea) and compared to fertilized cereals (barley and sorghum). Once the seeds were harvested and the residues incorporated in the soil, unfertilized wheat was sown and harvested in the second year (2015 and 2017). N2O emissions, as well as soil temperature and moisture, were measured continuously using an automated chamber method during the two years of each experiment. Daily N2O emissions were less than 10 g N-N2O ha-1 d-1, with higher values (ranging from 10 to 90 g N-N2O ha-1 d-1) being measured during exceptionally rainy conditions. Daily N2O emissions were mainly influenced by climatic conditions for field experiments and far less by inorganic N content, except for N-fertilized cereals. For both field experiments, cumulative N2O emissions during legume and cereal pre-crops + fallow period between pre-crop harvest and wheat sowing (1st year) (mean values 365.4 and 318.1 g N-N2O ha-1 for experiment I and II, respectively) were higher than during wheat crop cultivation (2nd year) (155.8 and 101.5 g N-N2O ha-1 for experiment I and II, respectively). For field experiment II, N2O emissions were slightly higher for the N fertilized cereal pre-crops (529.8 and 523.3 g N-N2O ha-1 for barley and sorghum, respectively) compared to legume pre-crops (mean values 380.6 and 417.2 g N-N2O ha-1 for legumes sown in March and May, respectively), while no significant difference was measured for field experiment I. There was no difference in N2O emissions during the cultivation of the different legume species. Furthermore, when wheat was grown after legumes or N fertilized cereals, N2O emissions were comparable for the different experimental treatments with no relation established with the amounts of N present in crop residues or their C: N ratios. Despite the small differences in emissions between N-fertilized cereals and grain legumes, introducing these leguminous species in crop rotation and in these pedoclimatic conditions makes it possible to substitute synthetic N fertilizer and mitigate the greenhouse gases emitted from these cropping systems. However, further research is still needed to clarify and quantify the value of legumes in mitigating and reducing greenhouse gas emissions from cropping systems.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115346126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical Regeneration of Activated Carbon Used in A Water Treatment System for Medical Services","authors":"Jeamichel Puente Torres, Harold Crespo Sariol, J. Yperman, P. Adriaensens, R. Carleer, Thayset Mariño Peacok, Ángel Brito Sauvanell, Greet Cuyvers, G. Reggers, P. Samyn","doi":"10.21926/aeer.2302028","DOIUrl":"https://doi.org/10.21926/aeer.2302028","url":null,"abstract":"The chemical regeneration of exhausted granular activated carbon (GAC) from a water treatment plant to produce dialysis water used in hemodialysis treatments for chronic renal disease patients from a general Hospital of Ciego de Avila province, Cuba, was investigated. Activated carbon (AC) exhausted mainly by inorganics (Ca (Ca-chelates), Mg and Na) was regenerated using hydrochloric acid and acetic acid (one regeneration cycle). Solutions of 5%, 10%, 15% and 20%(v/v) as well as four contact times (2 h, 4 h, 6 h and 48 h) for hydrochloric acid and three contact times (2 h, 4 h and 6 h) for acetic acid at 25°C and 1 atm in a dosage of 1 g GAC/10 mL were used. Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES), thermogravimetric analysis (TGA), X-ray absorption technique (XRA) and Scanning Electronic Microscopy (SEM) were used to evaluate the effect of the regeneration on exhausted GAC. Batch and scaled column experiments were developed. Breakthrough curves were obtained to assess the AC’s performances after chemical regeneration. The removal/adsorption capacity towards free chlorine (as disinfection agent) and hardness ions (expressed in mg CaCO3/L) was estimated using the area under the breakthrough curves from scaled columns experiments. The hydrochloric acid arises as the best acidic regenerator; using a concentration of 20%(v/v), regenerated GACs using hydrochloric acid showed the highest desorption rate of inorganics as well as a free chlorine removal performance of around 30% concerning the virgin GAC sample. A new GAC management scheme is proposed for GACs used in the medical industry to improve the sustainability and economics of the water treatment process.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122878367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Greener Aspects of Nanoparticle Synthesis for Water Remediation: Challenges and Future Perspective","authors":"Jaspreet Kaur, Khushveer Kaur, Khushwinder Kaur, S. Mehta, A. Matharu","doi":"10.21926/aeer.2302027","DOIUrl":"https://doi.org/10.21926/aeer.2302027","url":null,"abstract":"Continued industrialization, urbanization and ecological destruction have caused significant environmental problems, particularly increased water pollution. Introducing harmful organic and inorganic effluents into watercourses has limited the supply and accessibility of safe and affordable drinking water. There is an urgent need to find green and sustainable abatement solutions for water remediation, many based on nanoparticles. The primary objective of this review is to explore and have a comprehensive discussion on the present trends, challenges and prospects for the green synthesis of nanoparticles for wastewater remediation. The connection between green chemistry and nanoparticles synthesis is articulated with many examples exploring the use of renewable or biobased resources. Energy-efficient processes (microwaves, ultrasound and laser ablation) and the use of alternative solvents (supercritical carbon dioxide, ionic liquids and biobased solvents) are explored. The review aims to make the readers discern the mechanistic insights towards the working of various green processes. Conclusively, the adoption of green nanotechnology has the potential to veritably addresses the global water shortage issue under the domain of environmental sustainability.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133787970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between Urban Socio-Environmental Characteristics Including Travel Behavior, and Health Performance","authors":"Yusuke Kataoka","doi":"10.21926/aeer.2302026","DOIUrl":"https://doi.org/10.21926/aeer.2302026","url":null,"abstract":"Understanding the urban environment and the health status of residents is necessary for appropriate administrative services and regional management. This study used indicator scores derived from the area statistics of cities in the Tokyo metropolitan area to identify factors that affect health status. Indices were classified into two groups: health-related and non-health-related. The index values of each group served as the observed variables and were statistically standardized. The relationship between the two groups was analyzed using canonical correlation analysis. The results indicate that social infrastructure and daily travel behavior affect the health status of residents, possibly by promoting physical activity. Furthermore, characteristics of the urban environment and travel behavior were strongly associated with the ratio of deaths due to lifestyle-related diseases.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133571824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Household Environmental Factors among Children with Reported Asthma and Controls","authors":"J. Sousa","doi":"10.21926/aeer.2301025","DOIUrl":"https://doi.org/10.21926/aeer.2301025","url":null,"abstract":"The present research was part of a cross-sectional project involving children aged 8 to 10 years in Porto, Portugal. The project involved a first research part at primary schools where the health tests and a questionnaire were performed and a second research part concerning environmental conditions. Two groups emerged from the health questionnaire answers: one group that reported “asthma diagnosed by a doctor” and/or “wheezing or whistling in the chest during last 12 months” and another that answered negatively to both questions. After performing the health questionnaire based on ISAAC, the children responsible were invited to participate in the environmental part of the study. The outdoor and indoor potential risk factors were extensively evaluated in children's homes. This research aimed to compare housing characteristics and indoor behaviours as environmental risk factors in the two children group and investigate whether the risks found are common. The results indicate that windows open during cleaning, standard window frame material, animals at present, dog presence, cat presence, sweep, and vacuumed floor cleaning were associated with both groups. This demonstrates that home characteristics influence some risks and may be exacerbated by certain occupants' behaviours.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122429407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using Plastic Wastes to Exemplify Justice Dimensions of Extended Producer Responsibility","authors":"Katrien Steenmans, R. Malcolm","doi":"10.21926/aeer.2301024","DOIUrl":"https://doi.org/10.21926/aeer.2301024","url":null,"abstract":"Extended Producer Responsibility (EPR) places liability, physical, financial, and/or informative responsibility for a product throughout its life cycle on its producer. Implementing such schemes is expected to result in many environmental and social benefits. Yet, academic and practitioner discussions on the mechanisms focus on environmental impacts, whereas social dimensions of EPR are often side-lined. This short communication contributes to addressing this gap by establishing a research agenda for the justice dimensions of EPR. For this purpose, initial links between EPR and justice – specifically waste colonialism, procedural justice, recognition justice, distributive justice, intra- and intergenerational equity, waste justice, and corrective justice – are set out, including where it affects products in their life cycles and examples of which stakeholders may be impacted, with plastic waste used to provide examples.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124445232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling Water Quality of AMD along the Flow Path","authors":"R. Schöpke","doi":"10.21926/aeer.2301023","DOIUrl":"https://doi.org/10.21926/aeer.2301023","url":null,"abstract":"The water balance is severely disturbed in post-mining landscapes like Lusatia/Germany. Mine waters (amd) enter the environment and spread in groundwater and surface waters. Groundwater containing high amounts of pyrite weathering products flows into receiving waters due to lignite mining for several years. The Chair of Wassertechnik & Siedlungswasserbau at the Brandenburg University of Technology Cottbus-Senftenberg/Germany has developed a subsurface rehabilitation method using microbial sulfate reduction over the past 25 years. A continuation of the research is unlikely. This paper has presented some research results on the behavior of groundwater acidified by mining. The acidity in the surface and groundwater is specified via the negative neutralization potential. The dominant reactions in AMD genesis and migration through the aquifer are evaluated about their acidity formation or their buffering behavior. The behavior of AMD can be summarized in a simplified way in the acidity-sulfate diagram. A flow section model (PhreeqC2) was developed and parameterized based on this. This can describe the migration of quality changes in the groundwater/aquifer system. The aquifer passage is reduced to a filtration process, analogous to water treatment. The processes occurring at compartment transitions (dump-lake-aquifer-...) can be modeled from anoxic to oxic. A first case study produces the infiltration of neutralized opencast mining lake water into an aquifer influenced by mining. Measured absorption effects during a microbiological sulfate reduction are interpreted in the second case study with an extended flow path model. The results presented are recommended for use. A comprehensive summary of the results obtained over 25 years of research is being prepared.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115913003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrological Effects of Spatial Harvest Patterns in a Small Catchment Covered by Fast-Growing Plantations in the Neotropics","authors":"L. G. Garcia, L. Salemi, R. Mingoti, C. Cassiano, A. Fransozi, V. Faria, C. Vettorazzi, W. P. Lima, S. Ferraz","doi":"10.21926/aeer.2301022","DOIUrl":"https://doi.org/10.21926/aeer.2301022","url":null,"abstract":"Eucalyptus forests are expanding worldwide and concerns exist about their impact on water resources. There is a lack of information about the hydrological effects of spatial harvest patterns in terms of their effects on streamflow. In this paper, we examined harvest amount and hillslope position effects on flow indices (Q70; Q50 and Q10) and water yield in a small catchment covered with a fast-growing Eucalyptus plantation. To do that, we used the Gridded Surface Subsurface Hydrologic Analysis (GSSHA), a physical-based distributed hydrological model, to simulate harvesting scenarios with different harvest amounts (30% and 70% of the forest plantation) at two hillslope positions (downslope and upslope). We also verified the influence of the amount of rainfall on peak flows for all scenarios. The results showed that the increase in water yield is positively related to the harvest amount and that, under the same harvest amount, harvests in downslope areas caused a larger increase in water yield than harvests in upslope areas. Downslope harvests led to a greater increase in peak flow under the 30% harvest. For the 70% harvest, no substantial effects of harvest position on peak flow could be detected. Incorporating harvest amounts and spatial patterns in Eucalyptus plantations management practices may be useful to mitigate their effects on water resources, especially in regions where water availability is generally lower.","PeriodicalId":198785,"journal":{"name":"Advances in Environmental and Engineering Research","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130124586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}