Metal-organic framework (MOF) materials, characterized by their porosity and large specific surface areas, exhibit excellent adsorption properties. With the aim of removing Te(IV) from environmental aquatic systems, this study is the first to propose the use of MIL-100(Fe). The material reveals a strong adsorption capacity for Te(IV), with maximum adsorption of 531.9 mg/g, superior to other adsorbent materials. Adsorption isotherm models and kinetic models indicate that the adsorption process of Te(IV) primarily involves monolayer chemical adsorption. According to the thermodynamic parameters of Te(IV) adsorption on MIL-100(Fe), the adsorption reaction is endothermic. The experiment individually examined factors affecting the material's adsorption performance, including adsorbent dose, initial concentration of Te(IV), pH, adsorption time, and coexisting ions. Even under high ion strength conditions and high concentrations of coexisting ions, the material's adsorption efficiency for Te(IV) still reached over 95%. The material has been successfully applied to remove Te(IV) from lake water, river water, and seawater, yielding satisfactory results. Due to the high salinity and ionic strength of the solution, the removal efficiency of Te(IV) in the seawater matrix was slightly lower than that in freshwater (river and lake water). Thus, this material shows promise for the removal of Te(IV) from complex aquatic systems.
{"title":"Removal of Tellurium(IV) from environmental aquatic systems using metal-organic framework material MIL-100(Fe)","authors":"Yiru Huang, Youyou Li, Qingwei Zhong, Cheng Luo","doi":"10.2166/wrd.2024.118","DOIUrl":"https://doi.org/10.2166/wrd.2024.118","url":null,"abstract":"\u0000 \u0000 Metal-organic framework (MOF) materials, characterized by their porosity and large specific surface areas, exhibit excellent adsorption properties. With the aim of removing Te(IV) from environmental aquatic systems, this study is the first to propose the use of MIL-100(Fe). The material reveals a strong adsorption capacity for Te(IV), with maximum adsorption of 531.9 mg/g, superior to other adsorbent materials. Adsorption isotherm models and kinetic models indicate that the adsorption process of Te(IV) primarily involves monolayer chemical adsorption. According to the thermodynamic parameters of Te(IV) adsorption on MIL-100(Fe), the adsorption reaction is endothermic. The experiment individually examined factors affecting the material's adsorption performance, including adsorbent dose, initial concentration of Te(IV), pH, adsorption time, and coexisting ions. Even under high ion strength conditions and high concentrations of coexisting ions, the material's adsorption efficiency for Te(IV) still reached over 95%. The material has been successfully applied to remove Te(IV) from lake water, river water, and seawater, yielding satisfactory results. Due to the high salinity and ionic strength of the solution, the removal efficiency of Te(IV) in the seawater matrix was slightly lower than that in freshwater (river and lake water). Thus, this material shows promise for the removal of Te(IV) from complex aquatic systems.","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"50 2","pages":""},"PeriodicalIF":4.5,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139442041","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}
Therese Ncheuveu Nkwatoh, Paul Oto Beseka Itor, Benard Mingo Yakum
This study accessed the efficiency and health risks of drinking water from different sources treated by filtration, boiling, chlorination, flocculation, and solar disinfection. The microbial quality of 45 treated water samples from boreholes, wells, and pipe-borne water was analyzed to determine treatment effectiveness and to quantify risk using quantitative microbial risk assessment. The effectiveness of each treatment method was a function of sampling sources (p < 0.05) and location (p < 0.10), chlorination and boiling being the most efficient methods (100%). Shiegella in well water samples treated by filtration and flocculation had the highest daily infection risk of 69.5 × 10−1 and 67.5 × 10−1 pppd. The annual risk of infection from Salmonella, Shigella, and Staphylococcus ranged from 7.8 × 10−1 to 1.00 pppy, exceeding the U.S. EPA annual infection benchmark (≤10−4 pppy). Salmonella, Shigella, and Staphylococcus had the highest risk of illness of 4.50 × 10−1, 3.30 × 10−1, and 9.80 × 10−1, respectively. All disease burden values exceeded the WHO disease burden benchmark (≤10−6 DALYs/pppy), with Staphylococcus and Salmonella contributing the highest disease burden of 4.71 × 10−2 and 2.13 × 10−2, DALYs/pppy. Therefore, boiling and chlorination are the best disinfection methods for the pathogens tested.
{"title":"Effectiveness and health risk assessment of drinking water from different sources treated by local household water treatment methods in Bamenda, Cameroon","authors":"Therese Ncheuveu Nkwatoh, Paul Oto Beseka Itor, Benard Mingo Yakum","doi":"10.2166/wrd.2023.120","DOIUrl":"https://doi.org/10.2166/wrd.2023.120","url":null,"abstract":"This study accessed the efficiency and health risks of drinking water from different sources treated by filtration, boiling, chlorination, flocculation, and solar disinfection. The microbial quality of 45 treated water samples from boreholes, wells, and pipe-borne water was analyzed to determine treatment effectiveness and to quantify risk using quantitative microbial risk assessment. The effectiveness of each treatment method was a function of sampling sources (p < 0.05) and location (p < 0.10), chlorination and boiling being the most efficient methods (100%). Shiegella in well water samples treated by filtration and flocculation had the highest daily infection risk of 69.5 × 10−1 and 67.5 × 10−1 pppd. The annual risk of infection from Salmonella, Shigella, and Staphylococcus ranged from 7.8 × 10−1 to 1.00 pppy, exceeding the U.S. EPA annual infection benchmark (≤10−4 pppy). Salmonella, Shigella, and Staphylococcus had the highest risk of illness of 4.50 × 10−1, 3.30 × 10−1, and 9.80 × 10−1, respectively. All disease burden values exceeded the WHO disease burden benchmark (≤10−6 DALYs/pppy), with Staphylococcus and Salmonella contributing the highest disease burden of 4.71 × 10−2 and 2.13 × 10−2, DALYs/pppy. Therefore, boiling and chlorination are the best disinfection methods for the pathogens tested.","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"3 6","pages":""},"PeriodicalIF":4.5,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139145482","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}
Yadi Cui, Xi Chen, Chompoonuch Pitakrattanawong, Xiaolu Du, Liping Qiu, Huimin Xu, Jiazhang Chen, Shunlong Meng, Limin Fan, Chao Song
Aquaculture produces numerous by-products like aquatic plants, algae, and nutrient-enriched sediment annually, which are often discarded as waste, are not environmentally friendly, and are harmful to the environment. In this study, aquaculture by-products were utilized to prepare moss biochar at 500, 700, and 800 °C (BC500, BC700, and BC800, respectively); Elodea biochar (WBC800) at 800 °C; and sediment biochar (SBC800) at 800 °C. Characterization and experimental results showed that BC800 had the best adsorption effect on geosmin (GSM) under the same conditions; when using BC800 to treat GSM solution with a pH of 7, the adsorption efficiency of GSM was high (97.08%) under the conditions of dosage of 1.0 g, temperature of 25 °C, and adsorption time of 2 min. Adsorption is a multimolecular layer process that involves both physical aspects of porous adsorption and connections between chemical bonds. Biochar, derived from aquaculture by-products, is utilized to eliminate odorous substances in aquaculture environments, thereby promoting resource recycling.
{"title":"Adsorption efficiency of biochar produced by aquaculture by-products for removing geosmin in aquaculture environment","authors":"Yadi Cui, Xi Chen, Chompoonuch Pitakrattanawong, Xiaolu Du, Liping Qiu, Huimin Xu, Jiazhang Chen, Shunlong Meng, Limin Fan, Chao Song","doi":"10.2166/wrd.2023.129","DOIUrl":"https://doi.org/10.2166/wrd.2023.129","url":null,"abstract":"\u0000 \u0000 Aquaculture produces numerous by-products like aquatic plants, algae, and nutrient-enriched sediment annually, which are often discarded as waste, are not environmentally friendly, and are harmful to the environment. In this study, aquaculture by-products were utilized to prepare moss biochar at 500, 700, and 800 °C (BC500, BC700, and BC800, respectively); Elodea biochar (WBC800) at 800 °C; and sediment biochar (SBC800) at 800 °C. Characterization and experimental results showed that BC800 had the best adsorption effect on geosmin (GSM) under the same conditions; when using BC800 to treat GSM solution with a pH of 7, the adsorption efficiency of GSM was high (97.08%) under the conditions of dosage of 1.0 g, temperature of 25 °C, and adsorption time of 2 min. Adsorption is a multimolecular layer process that involves both physical aspects of porous adsorption and connections between chemical bonds. Biochar, derived from aquaculture by-products, is utilized to eliminate odorous substances in aquaculture environments, thereby promoting resource recycling.","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"22 18","pages":""},"PeriodicalIF":4.5,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138977101","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}
Saida Kaykhaii, I. Herrmann, A. Hedström, K. Nordqvist, Ingemar Heidfors, M. Viklander
The effect of chemical cleaning and regular backwashing on the efficiency of an ultrafiltration membrane fouled during stormwater treatment was studied. Increasing backwash time from 30 to 60 s resulted in an increase in productivity by 20%. However, the productivity was highest when a backwash time of 45 s was used (3% higher than using 60 s). Chemical cleaning was carried out using an alkaline solution (NaOH with or without NaOCl) followed by acid washing with HCl. The addition of NaOCl to the cleaning chemical did not significantly increase the efficiency of chemical cleaning, and the average pure water permeability increase was 97 ± 13 LMH bar−1 after chemical cleaning with NaOH followed by HCl and 117 ± 15 LMH bar−1 after chemical cleaning with NaOH + NaOCl followed by HCl, on average. In addition, reversibility after chemical cleaning was 96 ± 67%, on average. The result from scanning electron microscopy showed that at the end of the experiments, inorganic foulants existed in both the inner layer (feed side) and the outer layer (permeate side) of the membrane.
{"title":"Enhancing stormwater treatment through ultrafiltration: impact of cleaning chemicals and backwash duration on membrane efficiency","authors":"Saida Kaykhaii, I. Herrmann, A. Hedström, K. Nordqvist, Ingemar Heidfors, M. Viklander","doi":"10.2166/wrd.2023.106","DOIUrl":"https://doi.org/10.2166/wrd.2023.106","url":null,"abstract":"The effect of chemical cleaning and regular backwashing on the efficiency of an ultrafiltration membrane fouled during stormwater treatment was studied. Increasing backwash time from 30 to 60 s resulted in an increase in productivity by 20%. However, the productivity was highest when a backwash time of 45 s was used (3% higher than using 60 s). Chemical cleaning was carried out using an alkaline solution (NaOH with or without NaOCl) followed by acid washing with HCl. The addition of NaOCl to the cleaning chemical did not significantly increase the efficiency of chemical cleaning, and the average pure water permeability increase was 97 ± 13 LMH bar−1 after chemical cleaning with NaOH followed by HCl and 117 ± 15 LMH bar−1 after chemical cleaning with NaOH + NaOCl followed by HCl, on average. In addition, reversibility after chemical cleaning was 96 ± 67%, on average. The result from scanning electron microscopy showed that at the end of the experiments, inorganic foulants existed in both the inner layer (feed side) and the outer layer (permeate side) of the membrane.","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"168 3","pages":""},"PeriodicalIF":4.5,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139257653","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}
Ye Du, Hai-xiang Li, Yun Lu, Dong-bin Wei, Wen-long Wang
{"title":"cutting-edge research on the action plan for the prevention and control of emerging contaminants in China","authors":"Ye Du, Hai-xiang Li, Yun Lu, Dong-bin Wei, Wen-long Wang","doi":"10.2166/wrd.2023.001","DOIUrl":"https://doi.org/10.2166/wrd.2023.001","url":null,"abstract":"","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"92 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135092071","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}
Yosef Abebe, Mulugeta Gashaw, Asenake Kefale, Tim Brewer
Abstract With the growing competition for water, demand for food, and the decline of freshwater resources, wastewater and polluted river waters have been increasingly used for agriculture in Ethiopia. The findings of this study show that untreated wastewater discharged from industries into the environment has been polluting rivers and the surrounding environment. Regulatory bodies did little to enforce rules, regulations, and directives provided for the regulation of wastewater. This paper examines the factors that explain weaknesses with respect to the accountability of institutions meant for wastewater governance. In doing so, it discusses task overlaps, corruption, and the absence of environmental courts that significantly affect environmental protection activities. The study found that due to poor implementation of laws and regulations, and lack of relevant information, including poor evidence of the pollution load, enforcement activities are under a great challenge. The paper concludes that urban agriculture has been expanding without concern for its negative health and socioeconomic impacts. The positive economic impacts of wastewater agriculture also need to be reassessed and improved as one livelihood option for the farming communities and calls for awareness creation and other measures to fully understand the existing benefits and impacts of wastewater on human health and the environment.
{"title":"Wastewater governance in the upstream catchment of the Awash Basin, Ethiopia: challenges and opportunities for better accountability","authors":"Yosef Abebe, Mulugeta Gashaw, Asenake Kefale, Tim Brewer","doi":"10.2166/wrd.2023.077","DOIUrl":"https://doi.org/10.2166/wrd.2023.077","url":null,"abstract":"Abstract With the growing competition for water, demand for food, and the decline of freshwater resources, wastewater and polluted river waters have been increasingly used for agriculture in Ethiopia. The findings of this study show that untreated wastewater discharged from industries into the environment has been polluting rivers and the surrounding environment. Regulatory bodies did little to enforce rules, regulations, and directives provided for the regulation of wastewater. This paper examines the factors that explain weaknesses with respect to the accountability of institutions meant for wastewater governance. In doing so, it discusses task overlaps, corruption, and the absence of environmental courts that significantly affect environmental protection activities. The study found that due to poor implementation of laws and regulations, and lack of relevant information, including poor evidence of the pollution load, enforcement activities are under a great challenge. The paper concludes that urban agriculture has been expanding without concern for its negative health and socioeconomic impacts. The positive economic impacts of wastewater agriculture also need to be reassessed and improved as one livelihood option for the farming communities and calls for awareness creation and other measures to fully understand the existing benefits and impacts of wastewater on human health and the environment.","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"61 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136023370","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 Navi Mumbai Municipal Corporation of Maharashtra state, India, unified a tertiary treatment plant (TTP) of 20 million litres per day (MLD) capacity with ultrafiltration technology in an existing Koparkhairane sewage treatment plant (STP) for producing effluent quality usable for industrial purposes. As prior art, an artificial neural network-genetic algorithm (ANN-GA) along with uncertainty estimation using prediction interval is employed to model secondary treated effluent (STE) flow rate (QT) and other quality parameters such as biochemical oxygen demand, chemical oxygen demand, and total suspended solids (TSS) to conclude the reliability of the range in which the input available to TTP. ANN-GA model provides a coefficient of determination above 0.90 for all STE parameters modelled other than TSS. Inferring that a good quantity and quality of 20 MLD STP treated water is currently available, where a decreasing trend of QT is also noticed and highlighted. Further, the Wilcoxon signed-rank test on the quality parameter of effluent TTP for industrial reuse standard infers TSS shows infringement during the initial period but started adhering to standards over time. The research delineates at the outset of exploring water reuse policy in India, emphasizing Maharashtra state, modelling STE using ANN-GA and performance evaluation of TTP.
{"title":"Tertiary treatment using ultrafiltration in an existing sewage treatment plant for industrial reuse – a modelling approach using an artificial neural network with uncertainty estimation","authors":"D. Ramkumar, Vinayakam Jothiprakash","doi":"10.2166/wrd.2023.179","DOIUrl":"https://doi.org/10.2166/wrd.2023.179","url":null,"abstract":"Abstract Navi Mumbai Municipal Corporation of Maharashtra state, India, unified a tertiary treatment plant (TTP) of 20 million litres per day (MLD) capacity with ultrafiltration technology in an existing Koparkhairane sewage treatment plant (STP) for producing effluent quality usable for industrial purposes. As prior art, an artificial neural network-genetic algorithm (ANN-GA) along with uncertainty estimation using prediction interval is employed to model secondary treated effluent (STE) flow rate (QT) and other quality parameters such as biochemical oxygen demand, chemical oxygen demand, and total suspended solids (TSS) to conclude the reliability of the range in which the input available to TTP. ANN-GA model provides a coefficient of determination above 0.90 for all STE parameters modelled other than TSS. Inferring that a good quantity and quality of 20 MLD STP treated water is currently available, where a decreasing trend of QT is also noticed and highlighted. Further, the Wilcoxon signed-rank test on the quality parameter of effluent TTP for industrial reuse standard infers TSS shows infringement during the initial period but started adhering to standards over time. The research delineates at the outset of exploring water reuse policy in India, emphasizing Maharashtra state, modelling STE using ANN-GA and performance evaluation of TTP.","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135667462","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 In a practical scenario, only a modest amount of distilled water can be generated each day by a basic solar still with a single basin. Fin-type solar ponds, fin-type solar stills, and integrated fin-type solar stills with finned ponds are investigated. The theoretic performance and experimental studies on the proposed systems were carried out in Pongalur near Tirupur (10.9729° N, 77.3698° E), a region with a latitude of 10° north. Single basin solar still (SBSS), single basin solar still with fin, single basin solar still with pond, single basin solar still with finned pond, and integrated single basin fin-type solar still with a finned solar pond were developed. Adding fins to the small solar pond enhanced the thermal performance of SBSS, by increasing the daily water collection. The pace at which heat is transmitted from the basin to water has risen due to the fins. According to this study, the amount of water collected by single basin solar still with fin, single basin solar still with finned pond, and integrated single basin solar still with fins and finned pond grew by 46, 48, and 52% for each of these systems.
{"title":"Experimental and theoretical analysis of solar still with solar pond for enhancing the performance of sea water desalination","authors":"M. Yuvaperiyasamy, N. Senthilkumar, B. Deepanraj","doi":"10.2166/wrd.2023.102","DOIUrl":"https://doi.org/10.2166/wrd.2023.102","url":null,"abstract":"Abstract In a practical scenario, only a modest amount of distilled water can be generated each day by a basic solar still with a single basin. Fin-type solar ponds, fin-type solar stills, and integrated fin-type solar stills with finned ponds are investigated. The theoretic performance and experimental studies on the proposed systems were carried out in Pongalur near Tirupur (10.9729° N, 77.3698° E), a region with a latitude of 10° north. Single basin solar still (SBSS), single basin solar still with fin, single basin solar still with pond, single basin solar still with finned pond, and integrated single basin fin-type solar still with a finned solar pond were developed. Adding fins to the small solar pond enhanced the thermal performance of SBSS, by increasing the daily water collection. The pace at which heat is transmitted from the basin to water has risen due to the fins. According to this study, the amount of water collected by single basin solar still with fin, single basin solar still with finned pond, and integrated single basin solar still with fins and finned pond grew by 46, 48, and 52% for each of these systems.","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135823992","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}
Maria dos Anjos de Jesus Barros Monteiro Lopes, Rayco Guedes-Alonso, Vanessa Mendoza-Grimón, Sarah Montesdeoca-Esponda, Juan Ramon Fernández-Vera, Zoraida Sosa-Ferrera, José Juan Santana-Rodríguez, Maria del Pino Palacios-Díaz
Abstract Cape Verde, a West Africa Island country, is exposed to climate change effect. An effective way of reducing its poverty and achieving food security is to provide its agricultural sector with water. The purpose of this study is to monitor treated water quality to ensure that any pollutants are below the limits set to ensure the safety and sustainability of reuse because only 10% of its treated wastewater is reused. For the first time on Cape Verde islands, besides chemical quality, the occurrence of 11 pharmaceutical compounds (PhC) in the influent and effluent of two natural wastewater treatment plants (WWTPs) was monitored to assess the effectiveness of the treatment technologies and removal efficiencies of these pollutants. Of the 11 target PhC, nine were detected in influent samples within the ng·L−1 to μg·L−1 range. Lower concentrations were detected in one WWTP vs. the other. Nevertheless, the removal efficiencies for most compounds were similar in both WWTPs: within the ranges of 82–92% for beta-blockers, 48–99% for stimulants and 44–95% for nonsteroidal anti-inflammatories, while carbamazepine (anticonvulsant) concentrations increased in effluents. WWTPs produce water that meets water quality standards for irrigation if a properly designed and managed reusing system is adopted.
{"title":"Water quality for agricultural irrigation produced by two municipal sewage treatment plants in Santiago Island-Cape Verde: assessment of chemical parameters and pharmaceutical residues","authors":"Maria dos Anjos de Jesus Barros Monteiro Lopes, Rayco Guedes-Alonso, Vanessa Mendoza-Grimón, Sarah Montesdeoca-Esponda, Juan Ramon Fernández-Vera, Zoraida Sosa-Ferrera, José Juan Santana-Rodríguez, Maria del Pino Palacios-Díaz","doi":"10.2166/wrd.2023.094","DOIUrl":"https://doi.org/10.2166/wrd.2023.094","url":null,"abstract":"Abstract Cape Verde, a West Africa Island country, is exposed to climate change effect. An effective way of reducing its poverty and achieving food security is to provide its agricultural sector with water. The purpose of this study is to monitor treated water quality to ensure that any pollutants are below the limits set to ensure the safety and sustainability of reuse because only 10% of its treated wastewater is reused. For the first time on Cape Verde islands, besides chemical quality, the occurrence of 11 pharmaceutical compounds (PhC) in the influent and effluent of two natural wastewater treatment plants (WWTPs) was monitored to assess the effectiveness of the treatment technologies and removal efficiencies of these pollutants. Of the 11 target PhC, nine were detected in influent samples within the ng·L−1 to μg·L−1 range. Lower concentrations were detected in one WWTP vs. the other. Nevertheless, the removal efficiencies for most compounds were similar in both WWTPs: within the ranges of 82–92% for beta-blockers, 48–99% for stimulants and 44–95% for nonsteroidal anti-inflammatories, while carbamazepine (anticonvulsant) concentrations increased in effluents. WWTPs produce water that meets water quality standards for irrigation if a properly designed and managed reusing system is adopted.","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135994574","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}
Gottam Kishore, Ranjay Kumar Singh, C. K. Saxena, Nadhir Al-Ansari, Dinesh Kumar Vishwakarma, Salim Heddam
Abstract Magnetic water treatment (magnetic treatment device (MTD)) has long been a contentious procedure for domestic water treatment. This study examines the pros and cons of using different water types with and without a magnetic field treatment for growing French bean crop irrigation. The MTD used in this experiment works by ionizing the dissolved solid using a cathode and anode, electrolysing water using a dynamic pulse current at 50 kHz, and energizing the cations using a 7,000 Gauss magnet. The MTD of normal, waste and saline water enhanced the yield by 12.7, 16.9, and 20.07% over their respective control plots. Contrarily, seed protein (22.52 g/100 g), vitamin A (687.09 IU), potassium (212.44 mg/100 g), vitamin K (14.32 mg/100 g), and calcium (39.93 mg/100 g) reached their peak values when French bean plants were irrigated by magnetically treated wastewater. Na concentration in pods was significantly reduced when 3,000 mg/L of magnetically treated saline water was used to irrigate French bean plants. The MTD of irrigation water has also improved N and K desorption from colloidal soil complexes, which significantly helped make these two elements easily available to the plants and promoting better plant growth and yield. Overall, using the MTD, the overall characteristics of French bean were improved.
{"title":"Magnetic treatment of irrigation water and its effect on French bean (<i>Phaseolus vulgaris</i>)","authors":"Gottam Kishore, Ranjay Kumar Singh, C. K. Saxena, Nadhir Al-Ansari, Dinesh Kumar Vishwakarma, Salim Heddam","doi":"10.2166/wrd.2023.064","DOIUrl":"https://doi.org/10.2166/wrd.2023.064","url":null,"abstract":"Abstract Magnetic water treatment (magnetic treatment device (MTD)) has long been a contentious procedure for domestic water treatment. This study examines the pros and cons of using different water types with and without a magnetic field treatment for growing French bean crop irrigation. The MTD used in this experiment works by ionizing the dissolved solid using a cathode and anode, electrolysing water using a dynamic pulse current at 50 kHz, and energizing the cations using a 7,000 Gauss magnet. The MTD of normal, waste and saline water enhanced the yield by 12.7, 16.9, and 20.07% over their respective control plots. Contrarily, seed protein (22.52 g/100 g), vitamin A (687.09 IU), potassium (212.44 mg/100 g), vitamin K (14.32 mg/100 g), and calcium (39.93 mg/100 g) reached their peak values when French bean plants were irrigated by magnetically treated wastewater. Na concentration in pods was significantly reduced when 3,000 mg/L of magnetically treated saline water was used to irrigate French bean plants. The MTD of irrigation water has also improved N and K desorption from colloidal soil complexes, which significantly helped make these two elements easily available to the plants and promoting better plant growth and yield. Overall, using the MTD, the overall characteristics of French bean were improved.","PeriodicalId":34727,"journal":{"name":"Water Reuse","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136012994","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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