Environmental Technology最新文献_第6页

Performance of fluorine removal using flow electrode capacitive deionization (FCDI): validation and optimization. 流动电极电容去离子除氟性能的验证与优化。

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-07-16 DOI: 10.1080/09593330.2025.2482979

Xiangyi Ding, Fangkai Qin, Lingling Lai, Caihong Qin, Ru Wang

{"title":"Performance of fluorine removal using flow electrode capacitive deionization (FCDI): validation and optimization.","authors":"Xiangyi Ding, Fangkai Qin, Lingling Lai, Caihong Qin, Ru Wang","doi":"10.1080/09593330.2025.2482979","DOIUrl":"10.1080/09593330.2025.2482979","url":null,"abstract":"This study demonstrates the efficacy of a symmetrically designed flow-electrode capacitive deionization (FCDI) system for the electrochemical defluorination of photovoltaic (PV) wastewater, with a systematic investigation conducted to optimize operational parameters and analyze key factors influencing system performance, offering valuable insights into enhancing FCDI efficiency. The results revealed that an optimal applied voltage of 1.2 V yielded a fluoride removal efficiency of 92.9% with an energy consumption of 6.49 kWh/mol. Increasing the electrode content to 0.75 wt% enhanced the removal efficiency to 98.3%; however, further increases in electrode content led to higher energy consumption due to elevated viscosity. Optimizing the flow rate to 45 mL/min resulted in a removal efficiency of 98.6%, accompanied by improved adsorption rates and reduced energy consumption. Adding 1 g/L of electrolyte substantially enhanced system performance, achieving a fluoride removal efficiency of 92.9%. In mixed-ion wastewater, competitive adsorption between <math><msubsup><mrow><mi>NO</mi></mrow><mn>3</mn><mo>-</mo></msubsup></math> and F⁻ was observed. Doubling the <math><msubsup><mrow><mi>NO</mi></mrow><mn>3</mn><mo>-</mo></msubsup></math> concentration relative to F⁻ decreased the F⁻ removal efficiency from 96.2% to 87.3%. Nonetheless, the FCDI system demonstrated robust fluoride removal performance under high ion concentrations and complex matrix conditions, offering an efficient and sustainable approach for industrial wastewater treatment.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4407-4416"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144648895","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}

引用次数: 0

Improving ureolysis in human urine by inoculating Amphibacillus bacteria selected by enrichment cultures. 通过接种由富集培养选择的两栖杆菌来改善人尿的尿溶。

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-06-15 DOI: 10.1080/09593330.2025.2516053

Ma Concepción Romero-Serrano, Mónica Bonilla-Salinas, Ulises Durán-Hinojosa, Victor Sánchez-Vázquez, Ignacio González, Florina Ramírez-Vives

{"title":"Improving ureolysis in human urine by inoculating Amphibacillus bacteria selected by enrichment cultures.","authors":"Ma Concepción Romero-Serrano, Mónica Bonilla-Salinas, Ulises Durán-Hinojosa, Victor Sánchez-Vázquez, Ignacio González, Florina Ramírez-Vives","doi":"10.1080/09593330.2025.2516053","DOIUrl":"10.1080/09593330.2025.2516053","url":null,"abstract":"Reclaiming nitrogen through urine-recycling technologies is increasing. Ureolysis serves as the foundation for this shift as it decreases the energy demand for nitrogen fertilizer production. However, this process has been understudied because of its low efficiency and spontaneous nature. This research shows that using an external inoculum can increase efficiency by 3.5 times. For the selection of the inoculum, the technique of enrichment cultures in Christensen medium was used, which resulted in increased activity and reproducibility of selected cow dung bacteria (CDG). The kinetic parameters Vmax and Km increased from 375.62 ± 14.96-560.67 ± 88.89 mmol NH+4 · kg-1 min-1 and from 115.57 ± 0.08-220.35 ± 53.29 mM, respectively, improving ureolysis rate and microorganism acclimatation. Specific inocula are crucial for improving ureolytic activity and discovering new findings. The bacterial community in the enrichment cultures was analyzed by DGGE and sequencing of 16S rRNA genes. The bacteria responsible for ureolysis was related to Amphibacillus genus. For the first time, the viability of the Amphibacillus has been demonstrated to carry out ureolysis in human urine for sustainable nutrient recovery.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4641-4651"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144301342","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}

引用次数: 0

Effect and mechanism of residual-chlorine on the horizontal transfer of antibiotic resistance genes of chlorine resistant bacteria in reclaimed water. 余氯对再生水中耐氯菌耐药基因水平转移的影响及机制

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-06-28 DOI: 10.1080/09593330.2025.2516055

Xueli Ren, Beiqi Xiao, Mengyi Wu, Kunlun Yang, Peng Gu, ZengShuai Zhang, Hengfeng Miao

{"title":"Effect and mechanism of residual-chlorine on the horizontal transfer of antibiotic resistance genes of chlorine resistant bacteria in reclaimed water.","authors":"Xueli Ren, Beiqi Xiao, Mengyi Wu, Kunlun Yang, Peng Gu, ZengShuai Zhang, Hengfeng Miao","doi":"10.1080/09593330.2025.2516055","DOIUrl":"10.1080/09593330.2025.2516055","url":null,"abstract":"Chlorine disinfection inactivates most microbes in reclaimed water, but chlorine resistant bacteria (CRB) persist, threatening water safety and spreading antibiotic resistance genes (ARGs). ARG proliferation in reclaimed water systems risks public health, as dissemination via irrigation or urban reuse may enable environmental transmission to humans, exacerbating global antibiotic resistance. One hundred and fifty-two strains of CRB were isolated from reclaimed water in this study, and the detection rate of ARGs in those CRB was 100%, the detection rate for blTEM was 100%, followed by sul3 and tetG. Macrogenomic analysis revealed that Proteobacteria, Actinobacteria, and Bacteroidetes are the dominant CRB in reclaimed water. Long-term induction with the minimum inhibitory concentration (MIC) of NaClO enhanced the resistance of CRB to both Amp and NaClO. The EPS of CRB increased 1.30- to 2.04-fold, and the elevated surface hydrophobicity may serve as a co-resistance mechanism. EPS hindered disinfectant/antibiotic penetration, while hydrophobicity reduced hydrophilic molecule adhesion and promoted bacterial aggregation, both of which contribute to the enhanced resistance of CRB. Residual chlorine dose-dependently enhances ARG conjugation via ROS-SOS, ATP, and EPS pathways, unveiling novel CRB mechanisms and urging revised disinfection to mitigate ARG spread.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4667-4680"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144527020","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}

引用次数: 0

The efficient fluorescence probe for haloacetic acids detection based on the Eu(III) complex constructed by dehydroabietic amine and phenanthroline. 脱氢枞胺与邻菲罗啉配合物铕（III）荧光探针检测卤化乙酸的高效研究。

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-06-07 DOI: 10.1080/09593330.2025.2516054

Quliang Lu, Yiru Wu, Ziwen He, Xiang Xu, Yijun Zheng, Qinwen Jiang, Shibin Shang

{"title":"The efficient fluorescence probe for haloacetic acids detection based on the Eu(III) complex constructed by dehydroabietic amine and phenanthroline.","authors":"Quliang Lu, Yiru Wu, Ziwen He, Xiang Xu, Yijun Zheng, Qinwen Jiang, Shibin Shang","doi":"10.1080/09593330.2025.2516054","DOIUrl":"10.1080/09593330.2025.2516054","url":null,"abstract":"A dual-emission fluorescence probe for sensitive determination of haloacetic acids (HAAs) was fabricated based on the Eu(III) complex (DDM-Phen-Eu), while dehydroabietic amine (DDM) and 1,10-phenanthroline (Phen) served as the ligands. FTIR, UV-vis, WAXD, SEM, elemental analysis, ESI-MS, and XPS measurements were employed to disclose the coordination structure of DDM-Phen-Eu. Based on the study of the Huang-Rhys factors and the Judd-Ofelt parameters, the introduction of DDM would decrease the reorganization energy, stabilize the coordinate structure, and improve the fluorescence quantum yield of DDM-Phen-Eu up to 90.68%. Due to the hydrophobic property of DDM component, water has been excluded from the coordinate structure of DDM-Phen-Eu, which generated the fluorescence from both Phen and the Eu(III) ions of DDM-Phen-Eu in aqueous solution. The fluorescence intensities of DDM-Phen-Eu remained stable in acidic, neutral, and alkaline solutions, even with the addition of NaCl. Halogen bond between the halogen atoms of HAAs and the N atoms of Phen component, accompanied with the coordination bond between the carboxyl group of HAAs and the Eu(III) ions, induced the charge transfer from DDM-Phen-Eu to HAAs and suppressed the fluorescence of DDM-Phen-Eu. Fluorescence quenching endowed DDM-Phen-Eu with sensitivity in the detection of HAAs with the concentrations range of 0 ∼ 1.78 μM for chloroacetic acid (CA), 0 ∼ 0.875 μM for bromoacetic acid (BA), and 0 ∼ 0.758 μM for iodoacetic acid (IA), respectively. The limits of detections for CA, BA, and IA were 0.151, 0.087, and 0.077 μM, respectively.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4652-4666"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144247138","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}

引用次数: 0

High-resolution numerical simulation of urban water environment under the influence of river sediment. 河流泥沙影响下城市水环境的高分辨率数值模拟。

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-06-10 DOI: 10.1080/09593330.2025.2517397

Yu Tong, Yao Yao, Jingming Hou, Tian Wang, Guangxue Luan, Jing Jing, Lei Lei, Chenxiao Wang

{"title":"High-resolution numerical simulation of urban water environment under the influence of river sediment.","authors":"Yu Tong, Yao Yao, Jingming Hou, Tian Wang, Guangxue Luan, Jing Jing, Lei Lei, Chenxiao Wang","doi":"10.1080/09593330.2025.2517397","DOIUrl":"10.1080/09593330.2025.2517397","url":null,"abstract":"To investigate the potential impacts of adsorption-desorption processes on the pollutant transport and transformation in urban water channels by river sediments, this study employed the hydrodynamic and water quality dynamic bidirectional coupling model (GAST-SWMM), validated under static idealised conditions. The research simulated urban river sediments functioning as both a 'sink' and a 'source' of pollutants, clarifying their role in influencing river water quality mechanisms during combined sewer overflow events. Results showed that sediments effectively mitigated water quality deterioration when acting as a 'sink' for pollutants. After four and a half hours, the pollutant concentration at the outlet was reduced to 0.56 mg/L due to sediment adsorption, compared to 23.573 mg/L without sediment. When acting as a 'source,' sediments released pollutants into the water, resulting in elevated concentrations in shallower river sections that subsequently migrate downstream, leading to pollution levels exceeding Class IV water standards. During combined sewer overflow incidents, sediments shortened retention times of elevated pollutant concentrations and reduced overall levels. At selected cross-sections, the durations during which water quality exceeded standards were reduced by 5.0%, 23.4%, and 27.5%, respectively. The highest pollutant reduction rate at the river outlet reached 55.95%. Although pollutants were released gradually from sediments after rainfall, this process was slow and prolonged. This study elucidates and quantitatively assesses the specific impacts of river sediments on combined sewer overflow pollution processes, offering a theoretical basis for the management of urban black-odor water bodies and control of combined sewer overflow pollution.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4693-4709"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265697","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}

引用次数: 0

Changes in soil physical and chemical properties with the use of poultry litter in an Oxisol of southern Brazil. 巴西南部Oxisol使用家禽粪便对土壤物理和化学性质的影响

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-08-06 DOI: 10.1080/09593330.2025.2519959

Ellen Lemes Silva, Maria Hermínia Ferreira Tavares, Deonir Secco, Doglas Bassegio, Graziela Moraes de Cesare Barbosa, Mayra Beatriz Semiano Castro, Eduardo Jair Wendt, Luiz Antônio Zanão Junior, Mateus Rodrigues Savioli

{"title":"Changes in soil physical and chemical properties with the use of poultry litter in an Oxisol of southern Brazil.","authors":"Ellen Lemes Silva, Maria Hermínia Ferreira Tavares, Deonir Secco, Doglas Bassegio, Graziela Moraes de Cesare Barbosa, Mayra Beatriz Semiano Castro, Eduardo Jair Wendt, Luiz Antônio Zanão Junior, Mateus Rodrigues Savioli","doi":"10.1080/09593330.2025.2519959","DOIUrl":"10.1080/09593330.2025.2519959","url":null,"abstract":"The use of poultry litter in agriculture poses potential risk to soil because of its composition, including elements that act as dispersants and negatively affect soil properties. More research is needed in this area as there is still insufficient data on optimal application rates. This study aims to fill the knowledge gap on the effects of poultry litter application on soil chemical and physical properties in an Oxisol region of southern Brazil managed under a no-tillage system (NT). The experiment included rates of poultry litter (3.6, 7.2, and 10.8 Mg ha-1), control treatment and chemical fertilization (NPK) in a randomized block design with four replications. The results showed that although the application of poultry litter increased the organic matter (OM), it did not significantly improve the geometric mean diameter of the soil. The study refuted the hypothesis that OM from organic fertilizers could reduce clay dispersion or improve soil aggregate stabilization. Instead, it was found that the increase in Na+, with high pH and Ca2+ levels contributed significantly to increased clay dispersion. This was evident in treatments with poultry litter rates of 7.2 and 10.8 Mg ha-1. PCA showed that soil chemical properties (Na+, pH, K, Mg2+, Ca2+ and OM) are correlated with CDW, indicating their direct influence and the need for caution when using poultry litter in agriculture. It is concluded that the application of poultry litter at rates above 7.2 Mg ha-1 leads to increased pH, Na+, K, Mg2+ and Ca2+ levels, exacerbating clay mineral dispersion in an Oxisol under a NT.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4738-4751"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144788608","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}

引用次数: 0

Monitoring and exploring electrical resistance changes of activated carbon fibre cloth for the dynamic adsorption of VOCs at elevated relative humidity. 监测和探索高相对湿度下活性炭纤维布对VOCs动态吸附的电阻变化。

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-05-22 DOI: 10.1080/09593330.2025.2507383

Ming-Ming Hu, Hamidreza Emamipour, Yuanxin Miao

{"title":"Monitoring and exploring electrical resistance changes of activated carbon fibre cloth for the dynamic adsorption of VOCs at elevated relative humidity.","authors":"Ming-Ming Hu, Hamidreza Emamipour, Yuanxin Miao","doi":"10.1080/09593330.2025.2507383","DOIUrl":"10.1080/09593330.2025.2507383","url":null,"abstract":"Activated carbon fibre cloth (ACFC) adsorbent has been used to monitor adsorption processes based on its changes in electrical resistance after adsorbing volatile organic compounds (VOCs). It is important to investigate the effect of co-adsorption of VOCs and water on resistance changes of ACFC from a practical point of view. In this study, the evolution of resistance changes of ACFC-15 was real-time monitored during adsorption of select VOCs with different inlet concentrations and relative humidity (RH). Resistance of ACFC-15 was affected by adsorption of oxygen from the carrier gas, temperature increase caused by exothermic adsorption, and adsorption of organic compound and/or water. After the completion of all tests, resistances of ACFC-15 are all decreased, which is attributed to the relatively more ordered structure of ACFC-15 after adsorbing organic compound and/or water. The trend of increasing d002 of the nanographene sheets declines with increasing boiling point of the organic compounds. The absolute values of change in resistance are consistent with the peak intensities of the (002) plane of ACFC-15 adsorbed organic compound, and/or water. This study provides valuable results to improve the performance of ACFC adsorbent for monitoring single-component VOC adsorption based on its electrical resistance at elevated RH.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4463-4474"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144126982","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}

引用次数: 0

Effect of coal-gangue derived calcium silicate hydrate on the growth of pakchoi in copper contaminated soil. 煤矸石水化硅酸钙对铜污染土壤小白菜生长的影响。

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-05-22 DOI: 10.1080/09593330.2025.2507388

Zhang Qing, Zhang Hailong, Wang Lulu, Zhang Xianglin, Zhang Shizhen

{"title":"Effect of coal-gangue derived calcium silicate hydrate on the growth of pakchoi in copper contaminated soil.","authors":"Zhang Qing, Zhang Hailong, Wang Lulu, Zhang Xianglin, Zhang Shizhen","doi":"10.1080/09593330.2025.2507388","DOIUrl":"10.1080/09593330.2025.2507388","url":null,"abstract":"ABSTRACTThis study investigated the effect of calcium silicate hydrate (C-S-H) on copper (Cu) uptake, availability, geochemical speciation, and immobilization in the soil-plant system. C-S-H, prepared from coal gangue, was added to Cu-contaminated soil to assess its effect on pakchoi growth. C-S-H application increased soil pH, organic matter content, and cation exchange capacity while reducing electrical conductivity. It also increased soil microbial biomass and enzyme activities while reducing Cu bioavailability, mobility, and leaching toxicity. The possible Cu fixation mechanisms by C-S-H in soil media included ion exchange, complexation, and precipitation. Moreover, fresh biomass, dry biomass, plant height, and root length increased significantly by 5.81-23.74%, 8.48-34.69%, 5.13-29.42%, and 6.78-28.81%, respectively. Cu content in the shoots and roots of pakchoi decreased by 17.30-66.04% and 11.77-58.09%, respectively. These findings demonstrate that C-S-H is an effective soil amendment for reducing Cu accumulation in the pakchoi and enhances Cu solidification ability in contaminated soil.","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4493-4506"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144126967","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}

引用次数: 0

Effect of surface properties and NiO-MgO solid solution formation on CO₂ methanation over Ni/(Al₂O₃)_1-x(MgO)_x. Ni/(Al2O3)1-x(MgO)x表面性质及Ni -MgO固溶体形成对CO2甲烷化的影响

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-05-12 DOI: 10.1080/09593330.2025.2500782

A Ez-Zahar, S Ojala, A El Hadrami, T Laitinen, K Ainassaari, M Agunaou, M Huuhtanen, R Brahmi

引用次数: 0

Low formation of trihalomethanes in the disinfection of anaerobic effluent by electroactivated water. 电活化水消毒厌氧废水时三卤甲烷的低生成。

IF 2 4区环境科学与生态学

Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-05-12 DOI: 10.1080/09593330.2025.2500781

Alfredo Quirino Abreu Neto, Jessica N Rocha, Bruna S Magnus, Mario T Kato, Lourdinha Florencio

{"title":"Low formation of trihalomethanes in the disinfection of anaerobic effluent by electroactivated water.","authors":"Alfredo Quirino Abreu Neto, Jessica N Rocha, Bruna S Magnus, Mario T Kato, Lourdinha Florencio","doi":"10.1080/09593330.2025.2500781","DOIUrl":"10.1080/09593330.2025.2500781","url":null,"abstract":"This study investigated the effect of chlorinating an anaerobic reactor effluent with a high dosage of electroactivated water (EAW) and using the breakpoint strategy. The resulting effluent quality was evaluated based on the resolutions of the Brazilian Environmental Council. Disinfection by-products (DBPs) formation was measured as total trihalomethane (THM4), i.e. the sum of chloroform (TCM), bromodichloromethane (BDCM), dibromochloromethane (DBCM), and bromoform (TBM), which are the four major THM4 species. The results for the formation of THM4 were 217, 171 and 63 μg L-1 at dosages of 55, 60, and 65 mg Cl2 L-1, respectively, which are even lower than the maximum value of 1 mg TCM L-1, the only THM established in the Brazilian standards. The TCM, BDCM, DBCM and TBM concentrations determined in this study for those three dosages also comply with the discharge limits established for the classes II and III of surface wasters, by the Florida Department of Environmental Protection (USA).","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4266-4276"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143989300","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}

引用次数: 0