Rocio M. Gil, Maria Carla Groff, Benjamín Kuchen, Daiana G. Gil, Maria Cecilia Fernández, Fabio Vazquez
Anaerobic digestion processes for biogas generation using alperujo have been the subject of intensive studies suggesting that phenolic compounds act as microbial inhibitors in anaerobic digestion. Pretreatments are needed to reduce the effects of phenolic compounds and improve biogas production, especially for dry anaerobic digestion. However, industrial-scale implementation of these pretreatments is challenging, and it is unclear whether the improvement in biogas production justifies the energy expended on pretreatment. This study examines the energy analysis of dry anaerobic digestion and three alternative pretreatments: alkaline, oxidative and thermal. Results indicate that thermal pretreatment at 80°C with added water reduces phenolic compounds in alperujo by 35.4%. Meanwhile, pretreated with hydrogen peroxide in alkaline medium had the highest methane productivity (205 mL CH4/gVS). Even so, thermal pretreatment was only one with an energy return on investment greater than 1, signifying the necessity for energy analysis to ensure the viability of pretreatment processes.
大量研究表明，酚类化合物是厌氧消化过程中的微生物抑制剂。需要进行预处理来减少酚类化合物的影响，提高沼气产量，尤其是干式厌氧消化。然而，在工业规模上实施这些预处理具有挑战性，而且目前还不清楚沼气产量的提高是否证明预处理所耗费的能源是合理的。本研究对干式厌氧消化和三种替代预处理（碱性、氧化和热处理）进行了能源分析。结果表明，在 80°C 温度下加水进行热预处理可将阿尔佩鲁霍中的酚类化合物减少 35.4%。同时，在碱性介质中使用过氧化氢预处理的甲烷生产率最高（205 mL CH4/gVS）。尽管如此，只有热预处理的能源投资回报率大于 1，这表明有必要进行能源分析，以确保预处理工艺的可行性。
{"title":"Analysis of energy return on investment of dry anaerobic digestion for low water alperujo with oxidative, thermal and alkaline pretreatments","authors":"Rocio M. Gil, Maria Carla Groff, Benjamín Kuchen, Daiana G. Gil, Maria Cecilia Fernández, Fabio Vazquez","doi":"10.1111/wej.12914","DOIUrl":"https://doi.org/10.1111/wej.12914","url":null,"abstract":"Anaerobic digestion processes for biogas generation using alperujo have been the subject of intensive studies suggesting that phenolic compounds act as microbial inhibitors in anaerobic digestion. Pretreatments are needed to reduce the effects of phenolic compounds and improve biogas production, especially for dry anaerobic digestion. However, industrial-scale implementation of these pretreatments is challenging, and it is unclear whether the improvement in biogas production justifies the energy expended on pretreatment. This study examines the energy analysis of dry anaerobic digestion and three alternative pretreatments: alkaline, oxidative and thermal. Results indicate that thermal pretreatment at <i>80°C</i> with added water reduces phenolic compounds in alperujo by <i>35.4%</i>. Meanwhile, pretreated with hydrogen peroxide in alkaline medium had the highest methane productivity (<i>205 mL CH</i><sub><i>4</i></sub><i>/g</i><sub><i>VS</i></sub>). Even so, thermal pretreatment was only one with an energy return on investment greater than <i>1</i>, signifying the necessity for energy analysis to ensure the viability of pretreatment processes.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139373171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
İsmail Yigit Seckin, Mahmut Altiner, Birol Kayranli, Turan Yilmaz
Municipal digested sludge (MDS) has considerable phosphorus content that is between 1% and 15% in dry matter and it is a potential source for phosphorus recovery. A high amount of MDS is generated from sewage treatment plants in large cities and has many environmental concerns with its organic and inorganic constituents. In this study, phosphorus was recovered by precipitation with Ca(OH)2 and NaOH. Acid pretreatment was applied to MDS with H2SO4 and 58.7% of phosphorus was extracted from the solid phase to the liquid phase at pH 2. Up to 99% of dissolved phosphorus in the liquid phase was recovered with Ca(OH)2 and NaOH. Almost similar phosphorus precipitation rates were achieved with both bases but higher phosphorus contents (17% as P2O5) in precipitates were obtained by NaOH. The product obtained in this study can serve as a high-quality raw material substitute for the low-grade phosphate rocks (<15% P2O5) commonly utilized in the phosphate industry. Furthermore, this research presents a practical, environmentally friendly and cost-effective approach for sustainable sludge management and phosphorus production.
{"title":"Acidification and alkali precipitation for phosphorus recovery from municipal digested sludge","authors":"İsmail Yigit Seckin, Mahmut Altiner, Birol Kayranli, Turan Yilmaz","doi":"10.1111/wej.12915","DOIUrl":"https://doi.org/10.1111/wej.12915","url":null,"abstract":"Municipal digested sludge (MDS) has considerable phosphorus content that is between 1% and 15% in dry matter and it is a potential source for phosphorus recovery. A high amount of MDS is generated from sewage treatment plants in large cities and has many environmental concerns with its organic and inorganic constituents. In this study, phosphorus was recovered by precipitation with Ca(OH)<sub>2</sub> and NaOH. Acid pretreatment was applied to MDS with H<sub>2</sub>SO<sub>4</sub> and 58.7% of phosphorus was extracted from the solid phase to the liquid phase at pH 2. Up to 99% of dissolved phosphorus in the liquid phase was recovered with Ca(OH)<sub>2</sub> and NaOH. Almost similar phosphorus precipitation rates were achieved with both bases but higher phosphorus contents (17% as P<sub>2</sub>O<sub>5</sub>) in precipitates were obtained by NaOH. The product obtained in this study can serve as a high-quality raw material substitute for the low-grade phosphate rocks (<15% P<sub>2</sub>O<sub>5</sub>) commonly utilized in the phosphate industry. Furthermore, this research presents a practical, environmentally friendly and cost-effective approach for sustainable sludge management and phosphorus production.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139057084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Although numerous rural domestic sewage treatment facilities are constructed with the aim of improving the rural environment, the actual treatment effect is still difficult to evaluate. In this study, an evaluation system of rural domestic sewage treatment was established based on the analytic hierarchy process (AHP) model and a county in Zhejiang Province was selected as an example for empirical analysis. According to the results, planning issues have the greatest impact on rural sewage treatment, accounting for 56.8%, while equipment issues, personnel issues and management issues account for 27.3%, 9.7% and 6.2%, respectively. Also, the results demonstrated that terminal planning, location selection, treatment process selection and construction design should be paid attention to among the 11 secondary indicators. The establishment of the evaluation system clarifies the different influencing factors and weights during the operation of the completed facilities, which is conducive to the scientific and effective management of sewage treatment.
{"title":"Establishment and application of rural domestic sewage treatment evaluation system based on analytic hierarchy process","authors":"Peng Chen, Zhiyuan Yu, Youhua Deng, Shanghui Li, Dongfeng Zhu, Tao Zhang, Dong Xu","doi":"10.1111/wej.12912","DOIUrl":"https://doi.org/10.1111/wej.12912","url":null,"abstract":"Although numerous rural domestic sewage treatment facilities are constructed with the aim of improving the rural environment, the actual treatment effect is still difficult to evaluate. In this study, an evaluation system of rural domestic sewage treatment was established based on the analytic hierarchy process (AHP) model and a county in Zhejiang Province was selected as an example for empirical analysis. According to the results, planning issues have the greatest impact on rural sewage treatment, accounting for 56.8%, while equipment issues, personnel issues and management issues account for 27.3%, 9.7% and 6.2%, respectively. Also, the results demonstrated that terminal planning, location selection, treatment process selection and construction design should be paid attention to among the 11 secondary indicators. The establishment of the evaluation system clarifies the different influencing factors and weights during the operation of the completed facilities, which is conducive to the scientific and effective management of sewage treatment.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139057176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Water companies in the United Kingdom are currently facing unprecedented tightening of phosphorus discharge consents, which will only become stricter in the near future. Historically, the most widely applied method of phosphorus removal has been chemical precipitation through the addition of iron or aluminium salts. Although more sustainable options, such as biological processes, are already being implemented at key sites, data shows that chemical removal is likely to remain an integral part of wastewater treatment—whether as the main method in small or problematic works or as a trim for meeting consents below 1 mg/L, not achievable through biological removal alone. All sewage treatment providers in the United Kingdom have developed asset standards (internal design and operation guidelines) for the design and management of chemical precipitation at existing works. However, the approach has not been consistent throughout the sector, with wide variations of criteria, brackets and rules of thumb. This paper collates and compares these approaches, looking at asset standards from most of the water companies in the United Kingdom. The methods stated in these standards have been applied for the sizing of chemical phosphorus removal on four simulated sites, to meet theoretical consents based upon the future discharge requirements set by the Environment Agency under the Water Industry National Environment Programme.
{"title":"The different approaches to chemical phosphorus removal across the UK wastewater industry","authors":"O. Hernandez-Ramirez, A. Thompson","doi":"10.1111/wej.12909","DOIUrl":"https://doi.org/10.1111/wej.12909","url":null,"abstract":"Water companies in the United Kingdom are currently facing unprecedented tightening of phosphorus discharge consents, which will only become stricter in the near future. Historically, the most widely applied method of phosphorus removal has been chemical precipitation through the addition of iron or aluminium salts. Although more sustainable options, such as biological processes, are already being implemented at key sites, data shows that chemical removal is likely to remain an integral part of wastewater treatment—whether as the main method in small or problematic works or as a trim for meeting consents below 1 mg/L, not achievable through biological removal alone. All sewage treatment providers in the United Kingdom have developed asset standards (internal design and operation guidelines) for the design and management of chemical precipitation at existing works. However, the approach has not been consistent throughout the sector, with wide variations of criteria, brackets and rules of thumb. This paper collates and compares these approaches, looking at asset standards from most of the water companies in the United Kingdom. The methods stated in these standards have been applied for the sizing of chemical phosphorus removal on four simulated sites, to meet theoretical consents based upon the future discharge requirements set by the Environment Agency under the Water Industry National Environment Programme.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Household water demand has increased dramatically in Kuwait over the last few decades, due to rapid population growth and changing lifestyles. Avoiding a water deficit through a supply-side approach has been the default strategy in Kuwait, yet this approach is unsustainable, associated with declining groundwater levels, and reliance on desalination that results in major carbon emission and environmental impact and that takes a large and growing share of oil revenues. In this study, we forecast household water demand in Kuwait to 2050 under a Business-As-Usual (BAU) scenario and evaluate the economic and environmental impacts. A spatial microsimulation, constrained by the national population projection of the Kuwait Institute of Scientific Research (KISR), was developed to overcome data limitations in forecasting household demand. Results show a 45% increase in water demand by 2050, to 664.1 million cubic metres (MCM), relative to the 2019 base year. Annual production costs increase from 1.39 billion USD in 2019 to 1.99 billion USD by 2050, whilst carbon emissions increase from 10.85 to 15.54 million tonnes/year. These results should alert policymakers to the potential impacts of the growing water demand and provide further support for water conservation action to reduce demand.
{"title":"Kuwait household water demand in 2050: Spatial microsimulation and impact appraisal","authors":"Hamad J. Alazmi, Gordon Mitchell, Mark A. Trigg","doi":"10.1111/wej.12906","DOIUrl":"https://doi.org/10.1111/wej.12906","url":null,"abstract":"Household water demand has increased dramatically in Kuwait over the last few decades, due to rapid population growth and changing lifestyles. Avoiding a water deficit through a supply-side approach has been the default strategy in Kuwait, yet this approach is unsustainable, associated with declining groundwater levels, and reliance on desalination that results in major carbon emission and environmental impact and that takes a large and growing share of oil revenues. In this study, we forecast household water demand in Kuwait to 2050 under a Business-As-Usual (BAU) scenario and evaluate the economic and environmental impacts. A spatial microsimulation, constrained by the national population projection of the Kuwait Institute of Scientific Research (KISR), was developed to overcome data limitations in forecasting household demand. Results show a 45% increase in water demand by 2050, to 664.1 million cubic metres (MCM), relative to the 2019 base year. Annual production costs increase from 1.39 billion USD in 2019 to 1.99 billion USD by 2050, whilst carbon emissions increase from 10.85 to 15.54 million tonnes/year. These results should alert policymakers to the potential impacts of the growing water demand and provide further support for water conservation action to reduce demand.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138513158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study confirmed the efficacy of modified electrode microbial fuel cells (MFCs) in removing chemical oxygen demand (COD) and generating electricity using wastewater from industrial meat processing. The findings of linear sweep voltammetry (LSV) and cyclic voltammetry (CV) demonstrated that applying CuO particles to carbon cloth (CC) significantly reduced the charge transfer resistance, resulting in improved electrochemical performance. In the batch experiment, the MFCs were conducted by applying different electrodes and Nafion-117 as a proton exchange membrane (PEM). X-ray powder diffraction (XRD), energy-dispersive X-ray analysis (EDAX) and scanning electron microscope (SEM) analyses were performed to study the development of metal oxide on the electrode surface. The MFC operating with the CC/CuO electrode achieved a maximum COD removal (74.6%), which was attained at the peak power output of 82.56 mW/m2 and the greatest current density of 213.33 mA/m2, as indicated by the polarization curve data. In light of these findings, coating CuO on the CC anode promotes electron transfer, enhances the electrode's conductivity and increases its electrochemical surface area. In summary, the findings of this study hold significant implications for sustainable electricity production and remarkable effects on environmental quality, highlighting the strategic importance of the research approach and outputs in addressing global energy and environmental challenges.
{"title":"Enhancing microbial fuel cell performance: A study on carbon cloth/TiO2 and carbon cloth/CuO electrodes","authors":"Mojdeh Lotfi, Habibollah Younesi, Bita Roshanravan, Nader Bahramifar, Maxime Pontié, Mehri Shabani, Meisam Tabatabaei, Maryam Nazerifar","doi":"10.1111/wej.12908","DOIUrl":"https://doi.org/10.1111/wej.12908","url":null,"abstract":"This study confirmed the efficacy of modified electrode microbial fuel cells (MFCs) in removing chemical oxygen demand (COD) and generating electricity using wastewater from industrial meat processing. The findings of linear sweep voltammetry (LSV) and cyclic voltammetry (CV) demonstrated that applying CuO particles to carbon cloth (CC) significantly reduced the charge transfer resistance, resulting in improved electrochemical performance. In the batch experiment, the MFCs were conducted by applying different electrodes and Nafion-117 as a proton exchange membrane (PEM). X-ray powder diffraction (XRD), energy-dispersive X-ray analysis (EDAX) and scanning electron microscope (SEM) analyses were performed to study the development of metal oxide on the electrode surface. The MFC operating with the CC/CuO electrode achieved a maximum COD removal (74.6%), which was attained at the peak power output of 82.56 mW/m<sup>2</sup> and the greatest current density of 213.33 mA/m<sup>2</sup>, as indicated by the polarization curve data. In light of these findings, coating CuO on the CC anode promotes electron transfer, enhances the electrode's conductivity and increases its electrochemical surface area. In summary, the findings of this study hold significant implications for sustainable electricity production and remarkable effects on environmental quality, highlighting the strategic importance of the research approach and outputs in addressing global energy and environmental challenges.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138513187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract This article examines the spatial variability of extreme precipitation trends in northwestern Algeria (Macta) and compares the results obtained from the four recent and old non‐parametric methods. A dataset of annual maximum precipitation consisting of 41 observation years (1970–2010) and 41 rain gauges was used. The results of the four old and new methods used to detect trends, Mann–Kendall (MK), Bravais–Pearson (BP), Spearman (SR) and innovative trend analysis (ITA), show good agreement. They revealed that a decrease in the trend of annual maximum precipitation was detected during the first period (1970–1992) with −44% (MK), −61% (BP), −68% (SR) and −76% (ITA). On the other hand, in the second period (1993–2010), a total shift occurred in which a significant increase in annual maximum precipitation trends was observed with +63% (BP), +34% (MK and SR) and +93% (ITA). These results show the ability of ITA to detect partial trends that the other three tests do not allow. Our results allow decision‐makers to properly design adaptation strategies in the face of the intensification of these extreme events.
{"title":"Spatio‐temporal analysis of trends in annual maximum rainfall in the North‐West of Algeria: Comparative analysis of recent and old non‐parametric methods","authors":"Benali Benzater, Abdelkader Elouissi, Sahnoun Fellah, Anouar Hachemaoui","doi":"10.1111/wej.12905","DOIUrl":"https://doi.org/10.1111/wej.12905","url":null,"abstract":"Abstract This article examines the spatial variability of extreme precipitation trends in northwestern Algeria (Macta) and compares the results obtained from the four recent and old non‐parametric methods. A dataset of annual maximum precipitation consisting of 41 observation years (1970–2010) and 41 rain gauges was used. The results of the four old and new methods used to detect trends, Mann–Kendall (MK), Bravais–Pearson (BP), Spearman (SR) and innovative trend analysis (ITA), show good agreement. They revealed that a decrease in the trend of annual maximum precipitation was detected during the first period (1970–1992) with −44% (MK), −61% (BP), −68% (SR) and −76% (ITA). On the other hand, in the second period (1993–2010), a total shift occurred in which a significant increase in annual maximum precipitation trends was observed with +63% (BP), +34% (MK and SR) and +93% (ITA). These results show the ability of ITA to detect partial trends that the other three tests do not allow. Our results allow decision‐makers to properly design adaptation strategies in the face of the intensification of these extreme events.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135138530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Othman Al‐Mashaqbeh, Layal Alsalhi, Lana Salaymeh, Tao Lyu
Abstract This study investigated the use of nature‐based solutions for treating real pharmaceutical industry wastewater in Jordan. A pilot‐scale hybrid treatment wetland (TW) equipped with local zeolite was employed, comprising a tidal flow TW and a horizontal subsurface flow TW. This system was efficient in treating pharmaceutical wastewater with removal efficiencies of 61.4%, 52.6%, 60.1%, and 61.9% for chemical oxygen demand, total phosphorus, total nitrogen, and NH 4 + ‐N, respectively. The final effluent met Jordanian standards for the reuse of treated wastewater in irrigation (Class B). Five pharmaceuticals, namely, enrofloxacin, ciprofloxacin, ofloxacin, lincomycin, and trimethoprim, demonstrated nearly completed removal (93.6–99.9%). Moderated removal performances (59.2–68.2%) were observed for two compounds, flumequine and sulfaquinoxaline. However, three pharmaceuticals, namely, carbamazepine, diclofenac, and sulfadimidine, showed limited removal performances (1.1–20.5%). This study supported the feasibility of using nature‐based solutions for treating pharmaceutical wastewater and highlighted that future studies are required to optimize this strategy for removing a broader range of pharmaceuticals.
{"title":"Assessment of novel hybrid treatment wetlands as nature‐based solutions for pharmaceutical industry wastewater treatment","authors":"Othman Al‐Mashaqbeh, Layal Alsalhi, Lana Salaymeh, Tao Lyu","doi":"10.1111/wej.12907","DOIUrl":"https://doi.org/10.1111/wej.12907","url":null,"abstract":"Abstract This study investigated the use of nature‐based solutions for treating real pharmaceutical industry wastewater in Jordan. A pilot‐scale hybrid treatment wetland (TW) equipped with local zeolite was employed, comprising a tidal flow TW and a horizontal subsurface flow TW. This system was efficient in treating pharmaceutical wastewater with removal efficiencies of 61.4%, 52.6%, 60.1%, and 61.9% for chemical oxygen demand, total phosphorus, total nitrogen, and NH 4 + ‐N, respectively. The final effluent met Jordanian standards for the reuse of treated wastewater in irrigation (Class B). Five pharmaceuticals, namely, enrofloxacin, ciprofloxacin, ofloxacin, lincomycin, and trimethoprim, demonstrated nearly completed removal (93.6–99.9%). Moderated removal performances (59.2–68.2%) were observed for two compounds, flumequine and sulfaquinoxaline. However, three pharmaceuticals, namely, carbamazepine, diclofenac, and sulfadimidine, showed limited removal performances (1.1–20.5%). This study supported the feasibility of using nature‐based solutions for treating pharmaceutical wastewater and highlighted that future studies are required to optimize this strategy for removing a broader range of pharmaceuticals.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135242588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract This study aimed to analyse the impact of waterfront resources on the rural leisure environment, economic development, and physical and mental health awareness of the elderly. This study adopted a mixed research method. First, a questionnaire was designed, and 580 questionnaires were analysed using SPSS 26.0 statistical software with a basic statistical test, Pearson correlation coefficient. Then, we used semi‐structured interviews to collect the opinions of six respondents. Finally, the data were compiled and discussed by multivariate check analysis. The study found that although coastal resources can promote the rural economy, maintain community culture, build a comfortable living environment for the elderly and promote health and well‐being, they still affect the physical and mental health and well‐being of the elderly because of serious pollution, damage to the community environment and ecology, high prices and few leisure facilities. Therefore, reducing pollution, stabilizing prices, maintaining coastal biodiversity, controlling the consumption mechanism and providing a safe leisure environment will help promote the physical and mental health of the elderly, increase their enthusiasm and self‐confidence, and increase their sense of well‐being.
{"title":"Research on the impact of waterfront resources on rural leisure environment, economic development, and the awareness of physical and mental health of the elderly","authors":"Hsiao‐Hsien Lin, Tzu‐Yun Lin, Jan‐Wei Lin, Chih‐Cheng Lo, Qi‐Yuan Li, Chao‐Yen Lin, Jao‐Chuan Lin, Cheng‐Ping Li","doi":"10.1111/wej.12901","DOIUrl":"https://doi.org/10.1111/wej.12901","url":null,"abstract":"Abstract This study aimed to analyse the impact of waterfront resources on the rural leisure environment, economic development, and physical and mental health awareness of the elderly. This study adopted a mixed research method. First, a questionnaire was designed, and 580 questionnaires were analysed using SPSS 26.0 statistical software with a basic statistical test, Pearson correlation coefficient. Then, we used semi‐structured interviews to collect the opinions of six respondents. Finally, the data were compiled and discussed by multivariate check analysis. The study found that although coastal resources can promote the rural economy, maintain community culture, build a comfortable living environment for the elderly and promote health and well‐being, they still affect the physical and mental health and well‐being of the elderly because of serious pollution, damage to the community environment and ecology, high prices and few leisure facilities. Therefore, reducing pollution, stabilizing prices, maintaining coastal biodiversity, controlling the consumption mechanism and providing a safe leisure environment will help promote the physical and mental health of the elderly, increase their enthusiasm and self‐confidence, and increase their sense of well‐being.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135315805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract With the rapid growth of urbanization and industrialization, the strain on resources and the environment has intensified, resulting in challenges such as soil erosion and biodiversity loss. To address these issues, the development of a circular economy and eco‐cities has become crucial. This article proposes an ecosystem assessment model based on the backpropagation neural network (BPNN) that incorporates environmental carrying capacity and energy regeneration capacity. The model aims to evaluate the ecological service value of wetlands in the Changjiang River basin. The results demonstrate that the proposed model outperforms other comparison methods, exhibiting a high level of accuracy. Furthermore, the simulation outcomes indicate that enhancing eco‐efficiency can enhance the environmental carrying capacity and energy regeneration capacity of the ecosystem, ultimately leading to an overall improvement in ecosystem value.
{"title":"Ecological environment value assessment and ecological civilization in the Changjiang River basin","authors":"Zhaoli Ma, Xia Guo","doi":"10.1111/wej.12900","DOIUrl":"https://doi.org/10.1111/wej.12900","url":null,"abstract":"Abstract With the rapid growth of urbanization and industrialization, the strain on resources and the environment has intensified, resulting in challenges such as soil erosion and biodiversity loss. To address these issues, the development of a circular economy and eco‐cities has become crucial. This article proposes an ecosystem assessment model based on the backpropagation neural network (BPNN) that incorporates environmental carrying capacity and energy regeneration capacity. The model aims to evaluate the ecological service value of wetlands in the Changjiang River basin. The results demonstrate that the proposed model outperforms other comparison methods, exhibiting a high level of accuracy. Furthermore, the simulation outcomes indicate that enhancing eco‐efficiency can enhance the environmental carrying capacity and energy regeneration capacity of the ecosystem, ultimately leading to an overall improvement in ecosystem value.","PeriodicalId":23753,"journal":{"name":"Water and Environment Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136212203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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