Yong Tu, Yong Chen, Xiaoyue Zhang, Yunhao Xu, Yixuan Zhang, Tao Cui, Boming Fu
{"title":"Integrated electrodialysis/electro-oxidation process for the treatment of chlorpyrifos wastewater with high energy efficiency.","authors":"Yong Tu, Yong Chen, Xiaoyue Zhang, Yunhao Xu, Yixuan Zhang, Tao Cui, Boming Fu","doi":"10.2166/wst.2025.021","DOIUrl":"10.2166/wst.2025.021","url":null,"abstract":"<p><p>A novel integration of the electrochemical process with electrodialysis and electro-oxidation (IEDEO) was designed for the effective pretreatment of chlorpyrifos manufacturing wastewater, with high concentrations of both salts and organic compounds. The effects of operating parameters including initial pH and constant voltage on the IEDEO process performance were investigated. The IEDEO process showed excellent performance for the simultaneous removal of bio-refractory organics and inorganics in the chlorpyrifos wastewater. In contrast with the single EO process, the results of energy consumption, UV-vis spectra, and GC-MS showed that the oxidation performance for chlorpyrifos wastewater by IEDEO was carried out more efficiently. The biodegradability of the chlorpyrifos wastewater pretreated by IEDEO was significantly improved. The total salt removal (90.3 ± 2.1%) from the chlorpyrifos wastewater obtained by IEDEO was significantly higher than the 5.8 ± 1.6% removal attained with the EO process. The COD removal of chlorpyrifos wastewater by the IEDEO process was 25.5 ± 1.2%, and the energy consumption of the IEDEO process was 15.1 ± 1.6 kWh kg<sup>-1</sup> COD at 2 h, representing a 60-65% reduction compared to the EO process. This indicated that the IEDEO process was a valuable pretreatment technique for biological treatment. Moreover, scanning electron microscopy and X-ray diffraction results demonstrated that the IEDEO concentrate was beneficial for subsequent evaporative desalination.</p>","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"639-653"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634650","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}
{"title":"Antimicrobial activity of immobilized mycocins in sodium alginate on fecal coliforms.","authors":"Cristiane Persel, Jessica Cassia da Silva, Caroline Simon, Mateus Foltz Delabeneta, Daniele Schaab Boff Junges, Bruna Larissa Nascimento, Michele Ana Flores Chaves, Rita de Cássia Garcia Simão, Claudete Rodrigues Paula, Rinaldo Ferreira Gandra","doi":"10.2166/wst.2025.028","DOIUrl":"10.2166/wst.2025.028","url":null,"abstract":"<p><p><i>Wickerhamomyces anomalus</i> is a yeast-producing mycocins and has antimicrobial action. <i>Escherichia coli</i> is the predominant bacterium of the coliforms group; its presence in water indicates fecal contamination, being used as an indicator of microbiological analyses. The immobilization of cells and substances demonstrates great potential for biotechnological applications. This work aimed to assess the activity of free and immobilized mycocins, obtained from <i>W. anomalus</i>, against <i>E. coli</i> strains and fecal coliforms. The mycocins were immobilized in different concentrations of sodium alginate and calcium chloride and tested to verify the antimicrobial activity against the <i>E. coli</i> strain and fecal coliforms present in water samples. The mycocins were able to inhibit all strains used in broth microdilution. Considering the problem of multidrug-resistant antibiotic strains and the need for new alternatives to improve the quality of water and sewage effluents, these results demonstrate a possible application as an alternative to an antimicrobial agent.</p>","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"581-591"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634645","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}
{"title":"Optimization of detention ponds for urban stormwater runoff and pollution control in multiple catchments system with analytical probabilistic models and particle swarm.","authors":"Ali Aldrees, Salisu Dan'azumi, Sani I Abba","doi":"10.2166/wst.2025.024","DOIUrl":"10.2166/wst.2025.024","url":null,"abstract":"<p><p>Guidelines are often set at urban catchments' outfalls to avert river pollution, where stormwater is discharged into the river. Analytical probabilistic models (APMs) in conjunction with particle swarm optimization (PSO) were used to design a detention pond system at three sub-catchments of a watershed that discharge into a common point. The objective is to design multiple ponds upstream such that the pollution control target downstream is met at the minimum cost. Given the cost of purchasing land plus the cost of construction/maintenance of the ponds in the sub-catchments, the result shows that pond depths of 2.0 m in all three sub-catchments give the least total cost. A runoff control of 88, 94, and 90%, and pollution control of 59, 45, and 66% were obtained in Ponds 1, 2, and 3, respectively, while satisfying the overall watershed's pollution control target. A sensitivity analysis was conducted by varying the land costs and different performances were obtained. The APM/PSO model can search for the optimum design parameters that satisfy upstream runoff control performances and the overall pollution control target downstream. The advantage of the approach is that it can be applied to any combination of ponds in a larger watershed.</p>","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"592-608"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634617","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}
{"title":"Water Sci Technol 2025; wst2025007. Removal of phenolic compounds from olive mill wastewater (OMW) by tailoring the surface of activated carbon under acidic and basic conditions, Abeer F. Al Bawab, M. A. Abu-Dalo, H. Kanaan, N. Al-Rawashdeh, F. Odeh, https://doi.org/10.2166/wst.2025.007.","authors":"","doi":"10.2166/wst.2025.029","DOIUrl":"10.2166/wst.2025.029","url":null,"abstract":"","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"669"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634679","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}
Fabrizio Sabba, McKenna Farmer, Patrick Dunlap, Cindy Qin, Joseph Kozak, James Barnard, George Wells, Leon Downing
{"title":"Unlocking the potential of sidestream EBPR: exploring the coexistence of PAO, GAO and DGAO for effective phosphorus and nitrogen removal.","authors":"Fabrizio Sabba, McKenna Farmer, Patrick Dunlap, Cindy Qin, Joseph Kozak, James Barnard, George Wells, Leon Downing","doi":"10.2166/wst.2025.038","DOIUrl":"10.2166/wst.2025.038","url":null,"abstract":"<p><p>Wastewater treatment facilities use enhanced biological phosphorus removal (EBPR) to meet discharge quality limits. However, the EBPR process can experience upsets due to a lack of influent carbon or inadequate anaerobic zones. By using a sidestream EBPR (S2EBPR) process, carbon can be generated internally through fermentation processes and a higher anaerobic mass fraction can be attained in smaller volumes. This study investigates nutrient removal and microbial community trends in a full-scale S2EBPR demonstration at the Calumet Water Reclamation Plant. The study aims to improve a process model of the system by better representing the activity of glycogen-accumulating organisms (GAO) and potential competitors of phosphorus-accumulating organisms (PAO), which were found in high abundance in this study. Modifying anaerobic hydrolysis, GAO glycogen storage and ORP activity parameters resulted in model prediction improvements of approximately 5% for nitrate and nitrite and 10-60% for phosphorus. The study also uses shotgun metagenomic sequencing to profile denitrification pathways of PAO and GAO. It shows that denitrifying GAO may contribute to nitric oxide reduction to a greater degree than denitrifying PAO. This study improves process modeling predictions for S2EBPR and highlights the potential role of denitrifying PAO and GAO in combined phosphorus and nitrogen removal in S2EBPR.</p>","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"469-481"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634675","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}
Jeannette Jährig, Anne Kleyböcker, Fabian Kraus, Line Rodenkam Melchiorsen, Hasse Milter, Preben Thisgaard, Leo Vredenbregt, Ulf Miehe
{"title":"Innovative pre-treatments for reverse osmosis to reclaim water from biotech and municipal wastewater for the industrial symbiosis in Kalundborg.","authors":"Jeannette Jährig, Anne Kleyböcker, Fabian Kraus, Line Rodenkam Melchiorsen, Hasse Milter, Preben Thisgaard, Leo Vredenbregt, Ulf Miehe","doi":"10.2166/wst.2025.025","DOIUrl":"10.2166/wst.2025.025","url":null,"abstract":"<p><p>The challenge of water reclamation using membranes in this study was the quite unique wastewater composition resulting from a high share of biotech wastewater. The high content of organic matter and high concentrations of calcium, bicarbonate, and sulphate were considered as challenging for membrane processes. Consequently, an innovative ultra-tight ultrafiltration (u-t UF) membrane was developed and tested on-site at pilot scale. In comparison, a conventional UF and an open nanofiltration (NF) were piloted. The aim was to find the best pre-treatment option for reverse osmosis (RO) to reduce fouling and scaling and produce fit-for-purpose water; for example, cooling. Overall, the quality of the currently used water source was surpassed by the pilot plant. Only a standard post-treatment of the RO permeate was necessary for stabilisation. Results indicated that denser membranes only minimally reduced fouling of RO. An assessment comparing the treatment trains in a life cycle assessment using the data collected from the pilot operation (UF/NF operating settings, RO plant performance, and the design of multi-stage industrial scale RO) revealed lower greenhouse gas emissions compared to seawater desalination. However, if the RO brine treatment becomes mandatory, the greenhouse gas emissions from water reclamation and supply will be higher than those from freshwater supply.</p>","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 6","pages":"698-713"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744042","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}
Elias Daniel David Nova-Burgos, Diana Catalina Rodríguez-Loaiza, Julio Cesar Saldarriaga-Molina
{"title":"Differential overload simulation of condensate and housekeeping rendering wastewater for nutrient removal.","authors":"Elias Daniel David Nova-Burgos, Diana Catalina Rodríguez-Loaiza, Julio Cesar Saldarriaga-Molina","doi":"10.2166/wst.2025.037","DOIUrl":"10.2166/wst.2025.037","url":null,"abstract":"<p><p>The meat rendering process transforms waste from the meat industry to valuable materials as animal feed supplements. During the rendering process, large amounts of condensate and housekeeping wastewater (CWW and HKWW), solids and greenhouse gases are released into the environment imposing a huge pollution threat. Rendering condensate wastewater also causes many issues that commonly affect biological treatment processes such as pH inhibition, nutrient deficit and temperature. Therefore, the main objective of this work was to simulate the nutrient removal from a sequencing batch reactor (SBR) through the differential nitrogen overload of CWW. With aid of simulation, results found that the current SBR system does not remove carbon and nitrogen as much as other biological systems. This is due to low biodegradation of chemical oxygen demand (COD), the high content of inert particulate carbon (XI), identified in the fractionation of HKWW, and the toxic and inhibitory effect of ammonium present in CWW. When the system is overloaded with nitrogen from CWW there is little removal of biochemical oxygen demand (BOD), ordinary heterotrophic organisms (OHO) outnumber autotrophic nitrifying organisms (ANO) and ammonium toxicity occurs, all contributing to a failure to remove nutrients.</p>","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 6","pages":"731-745"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744040","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}
Qianting Liu, Zhiming Zhang, Yang Liangrui, Wang Zhe
{"title":"Regional joint regulation mode for flood control in plain cities: addressing extensive heavy rainfall.","authors":"Qianting Liu, Zhiming Zhang, Yang Liangrui, Wang Zhe","doi":"10.2166/wst.2025.027","DOIUrl":"10.2166/wst.2025.027","url":null,"abstract":"<p><p>Establishing a coordinated flood storage and drainage joint regulation mode for various cities can effectively mitigate the disaster risk associated with extensive heavy rainfall. This study introduces a novel concept of joint regulation of urban agglomeration based on watershed features and spatial topological norms. From the perspective of urban agglomeration, three new modes are proposed to guide flood storage and drainage in plain cities: (1) storing before discharging, (2) discharging before storing, and (3) discharging while storing. The modes aim to facilitate coordination among neighboring cities in an urban agglomeration and enhance the temporal and spatial coordination of flood storage and drainage. Multi-layer tree rules are established to allocate modes to cities based on the spatial characteristics of flood risk, storage, and drainage performance. The fact case proves that the mode has certain practical applicability. There are 35, 151, and 30 plain cities that use DS, DWS, and SD modes, respectively, out of 221 total. Most urban agglomerations employ at least two different joint regulation modes. The multi-layer tree rules for mode allocation presented in this study provide theoretical guidelines for flood management in plain cities across various regions.</p>","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 6","pages":"714-730"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744048","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}
{"title":"Treatment of the spin cycle effluent using electrocoagulation and granular activated carbon.","authors":"Shamik Prabhu Chodnekar, Srikanth Mutnuri","doi":"10.2166/wst.2025.002","DOIUrl":"10.2166/wst.2025.002","url":null,"abstract":"<p><p>Given the rising demand for freshwater and its limited availability, treating and reusing household wastewater is becoming increasingly crucial. One way to accomplish this is to treat and reuse spin cycle effluent from washing machines. The spin cycle, being the last washing cycle, yields comparatively cleaner effluent, necessitating less intensive treatment, rendering it an attractive target for treatment and reuse. This study presents the first instance of characterizing and treating this effluent. The average values for spin cycle effluent for chemical oxygen demand, biochemical oxygen demand, pH, conductivity, turbidity, total nitrogen, and orthophosphate were found to be 241.8 ± 88.4 ppm, 36.9 ± 14.3 ppm, 7.2 ± 0.9, 223.4 ± 46.7 μS/cm, 85.9 ± 20.1 NTU, 7.2 ± 3.1 ppm, and 4.6 ± 1.7 ppm, respectively. The treatment study was conducted at a 2-L scale using aluminum electrodes in a bipolar setup and utilized three liquid and three solid detergents. The treatment process consisted of sequential utilization of electrocoagulation flocculation and granular activated carbon which resulted in excellent treatment, with a 92.7 ± 3.6% reduction in chemical oxygen demand, an 87.2 ± 9.7% reduction in total nitrogen, a 91.4 ± 2.9% reduction in orthophosphate, and a 93.3 ± 4.7% reduction in turbidity. Utilizing the reuse potential of the spin cycle effluent with this process will allow households to actively contribute to sustainable water management practices.</p>","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"482-500"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634670","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}
Abeer F Al Bawab, M A Abu-Dalo, H Kanaan, N Al-Rawashdeh, F Odeh
{"title":"Removal of phenolic compounds from olive mill wastewater (OMW) by tailoring the surface of activated carbon under acidic and basic conditions.","authors":"Abeer F Al Bawab, M A Abu-Dalo, H Kanaan, N Al-Rawashdeh, F Odeh","doi":"10.2166/wst.2025.007","DOIUrl":"10.2166/wst.2025.007","url":null,"abstract":"<p><p>Olive mill wastewater (OMW), a by-product of olive oil production, poses significant environmental risks due to its acidity and high polyphenol content, particularly in water-scarce regions like Jordan. This study developed a cost-effective approach to reduce the phenolic content in OMW using modified granular-activated carbon (GAC). Commercial GAC, chosen for its high surface area and adsorption capacity, was modified via oxidative treatment with concentrated nitric acid and reductive treatment using 10 wt.% ammonia solution. The modified GAC samples were tested for phenolic compound (PC) adsorption from OMW under varying surfactant types, concentrations, and pH levels using a batch method. The optimized conditions revealed that reduced GAC at pH 9 achieved the highest removal efficiency, reducing the phenolic content by 88% after 48 h. Surfactants had no significant effect on the performance of reduced GAC. Desorption tests after 7 and 32 days indicated a minimal release of PCs, confirming strong binding to the GAC surface. These findings demonstrate the potential of reduced GAC as a sustainable and cost-efficient solution for treating OMW, addressing the critical challenges in water resource management and environmental pollution in regions like Jordan.</p>","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"567-580"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634656","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}