Water Science and Technology最新文献_第10页

Nitrate increases the capacity of an aerobic moving-bed biofilm reactor (MBBR) for winery wastewater treatment. 硝酸盐提高了好氧移动床生物膜反应器（MBBR）处理酿酒废水的能力。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-03-01 Epub Date: 2024-02-26 DOI: 10.2166/wst.2024.060

Patricio Walker, Robert Nerenberg, Gonzalo Pizarro, Marcelo Aybar, Juan Pablo Pavissich, Bernardo González, Pablo Pastén

{"title":"Nitrate increases the capacity of an aerobic moving-bed biofilm reactor (MBBR) for winery wastewater treatment.","authors":"Patricio Walker, Robert Nerenberg, Gonzalo Pizarro, Marcelo Aybar, Juan Pablo Pavissich, Bernardo González, Pablo Pastén","doi":"10.2166/wst.2024.060","DOIUrl":"10.2166/wst.2024.060","url":null,"abstract":"We used bench-scale tests and mathematical modeling to explore chemical oxygen demand (COD) removal rates in a moving-bed biofilm reactor (MBBR) for winery wastewater treatment, using either urea or nitrate as a nitrogen source. With urea addition, the COD removal fluxes ranged from 34 to 45 gCOD/m2-d. However, when nitrate was added, fluxes increased up to 65 gCOD/m2-d, twice the amount reported for aerobic biofilms for winery wastewater treatment. A one-dimensional biofilm model, calibrated with data from respirometric tests, accurately captured the experimental results. Both experimental and modelling results suggest that nitrate significantly increased MBBR capacity by stimulating COD oxidation in the deeper, oxygen-limited regions of the biofilm. Our research suggests that the addition of nitrate, or other energetic and broadly used electron acceptors, may provide a cost-effective means of covering peak COD loads in biofilm processes for winery or another industrial wastewater treatment.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"89 6","pages":"1454-1465"},"PeriodicalIF":2.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140337003","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

Optimizing start-up strategies for the two-inflow nitritation/anammox process: Influence on biofilm microbial community composition. 优化双流入亚硝酸盐/氨氧化工艺的启动策略：对生物膜微生物群落组成的影响。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-03-01 Epub Date: 2024-03-02 DOI: 10.2166/wst.2024.065

Zulkarnaini Zulkarnaini, Norihisa Matsuura, Sui Kanazawa, Ryo Honda, Ryoko Yamamoto-Ikemoto

{"title":"Optimizing start-up strategies for the two-inflow nitritation/anammox process: Influence on biofilm microbial community composition.","authors":"Zulkarnaini Zulkarnaini, Norihisa Matsuura, Sui Kanazawa, Ryo Honda, Ryoko Yamamoto-Ikemoto","doi":"10.2166/wst.2024.065","DOIUrl":"10.2166/wst.2024.065","url":null,"abstract":"Low-energy nitrogen removal from ammonium-rich wastewater is crucial in preserving the water environment. A one-stage nitritation/anammox process with two inflows treating ammonium-containing wastewater, supplied from inside and outside the wound filter, is expected to stably remove nitrogen. Laboratory-scale reactors were operated using different start-up strategies; the first involved adding nitritation inoculum after anammox biomass formation in the filter, which presented a relatively low nitrogen removal rate (0.171 kg N/m3 · d), at a nitrogen loading rate of 1.0 kg N/m3 · d. Conversely, the second involved the gradual cultivation of anammox and nitritation microorganisms, which increased the nitrogen removal rate (0.276 kg N/m3 · d). Furthermore, anammox (Candidatus Brocadia) and nitritation bacteria (Nitrosomonadaceae) coexisted in the biofilm formed on the filter surface. The abundance of nitritation bacteria (10.5%) in the reactor biofilm using the second start-up strategy was higher than that using the first (3.7%). Thus, the two-inflow nitritation/anammox process effectively induced habitat segregation using a suitable start-up strategy.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"89 6","pages":"1583-1594"},"PeriodicalIF":2.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140337004","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

Continuous flow aerobic granular sludge: recent developments and applications. 连续流好氧颗粒污泥：最新发展和应用。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-03-01 DOI: 10.2166/wst.2024.055

Cheng Yu, Kaijun Wang

{"title":"Continuous flow aerobic granular sludge: recent developments and applications.","authors":"Cheng Yu, Kaijun Wang","doi":"10.2166/wst.2024.055","DOIUrl":"10.2166/wst.2024.055","url":null,"abstract":"Aerobic granular sludge (AGS) in continuous-flow reactors (CFRs) has attracted significant interest, with notable progress in research and application over the past two decades. Cumulative studies have shown that AGS-CFRs exhibit comparable morphology, settleability, and pollutant removal efficiency to AGS cultivated in sequencing batch reactors, despite their smaller particle sizes. Shear force and selection pressure are the primary drivers of granulation. While not mandatory for granulation, feast/famine conditions play a crucial role in ensuring long-term stability and nutrient removal. Additionally, bioaugmentation can facilitate the granulation process. Furthermore, this paper comprehensively assesses the application of AGS-CFRs in full-scale wastewater treatment plants (WWTPs). Currently, AGS-CFRs have been implemented in nine WWTPs, encompassing two distinct processes. Hydrocyclone-based densified activated sludge significantly enhances sludge density, settleability, and biological phosphorus removal efficiency, thus increasing treatment capacity. The microaerobic-aerobic configuration with internal separators can induce granulation, ensuring long-term stability, eliminating the need for external clarifiers, and reducing land and energy requirements. This review demonstrates the high potential of AGS-CFRs for intensifying existing WWTPs with minimal retrofitting needs. However, further research is required in granulation mechanisms, long-term stability, and nutrient removal to promote the widespread adoption of AGS.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"89 5","pages":"1155-1178"},"PeriodicalIF":2.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wst_2024_055/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140120761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrothermal-assisted synthesis of Sr-doped SnS nanoflower catalysts for photodegradation of metronidazole antibiotic pollutant in wastewater promoted by natural sunlight irradiation. 水热法辅助合成掺锶 SnS 纳米花催化剂，用于在自然阳光照射下光降解废水中的甲硝唑抗生素污染物。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-03-01 DOI: 10.2166/wst.2024.054

Tayeb Bouarroudj, Youcef Messai, Lamine Aoudjit, Beddiaf Zaidi, Djamila Zioui, Amel Bendjama, Samiha Mezrag, Abdelmounaim Chetoui, Ilyas Belkhettab, Khaldoun Bachari

{"title":"Hydrothermal-assisted synthesis of Sr-doped SnS nanoflower catalysts for photodegradation of metronidazole antibiotic pollutant in wastewater promoted by natural sunlight irradiation.","authors":"Tayeb Bouarroudj, Youcef Messai, Lamine Aoudjit, Beddiaf Zaidi, Djamila Zioui, Amel Bendjama, Samiha Mezrag, Abdelmounaim Chetoui, Ilyas Belkhettab, Khaldoun Bachari","doi":"10.2166/wst.2024.054","DOIUrl":"10.2166/wst.2024.054","url":null,"abstract":"In this study, we report a facile hydrothermal synthesis of strontium-doped SnS nanoflowers that were used as a catalyst for the degradation of antibiotic molecules in water. The prepared sample was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet-visible absorption spectroscopy (UV-Vis). The photocatalytic ability of the strontium-doped SnS nanoflowers was evaluated by studying the degradation of metronidazole in an aqueous solution under photocatalytic conditions. The degradation study was conducted for a reaction period of 300 min at neutral pH, and it was found that the degradation of metronidazole reached 91%, indicating the excellent photocatalytic performance of the catalyst. The influence of experimental parameters such as catalyst dosage, initial metronidazole concentration, initial reaction pH, and light source nature was optimized with respect to metronidazole degradation over time. The reusability of the strontium-doped SnS nanoflowers catalyst was investigated, and its photocatalytic efficiency remained unchanged even after four cycles of use.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"89 5","pages":"1107-1123"},"PeriodicalIF":2.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wst_2024_054/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140120764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Risk assessment and classification prediction for water environment treatment PPP projects. 水环境治理 PPP 项目的风险评估和分类预测。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-03-01 DOI: 10.2166/wst.2024.052

Ruijia Yang, Jingchun Feng, Jiansong Tang, Yong Sun

{"title":"Risk assessment and classification prediction for water environment treatment PPP projects.","authors":"Ruijia Yang, Jingchun Feng, Jiansong Tang, Yong Sun","doi":"10.2166/wst.2024.052","DOIUrl":"10.2166/wst.2024.052","url":null,"abstract":"Water treatment public-private partnership (PPP) projects are pivotal for sustainable water management but are often challenged by complex risk factors. Efficient risk management in these projects is crucial, yet traditional methodologies often fall short of addressing the dynamic and intricate nature of these risks. Addressing this gap, this comprehensive study introduces an advanced risk classification prediction model tailored for water treatment PPP projects, aimed at enhancing risk management capabilities. The proposed model encompasses an intricate evaluation of crucial risk areas: the natural and ecological environments, socio-economic factors, and engineering entities. It delves into the complex relationships between these risk elements and the overall risk profile of projects. Grounded in a sophisticated ensemble learning framework employing stacking, our model is further refined through a weighted voting mechanism, significantly elevating its predictive accuracy. Rigorous validation using data from the Jiujiang City water environment system project Phase I confirms the model's superiority over standard machine learning models. The development of this model marks a significant stride in risk classification for water treatment PPP projects, offering a powerful tool for enhancing risk management practices. Beyond accurately predicting project risks, this model also aids in developing effective government risk management strategies.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"89 5","pages":"1264-1281"},"PeriodicalIF":2.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wst_2024_052/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140120768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biochar from co-pyrolysis of biological sludge and sawdust in comparison with the conventional filling media of vertical-flow constructed wetlands for the treatment of domestic-textile wastewater. 将生物污泥和锯末共同热解产生的生物炭与用于处理家用纺织品废水的垂直流构造湿地的传统填充介质进行比较。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-03-01 DOI: 10.2166/wst.2024.056

Mariem Ayadi, Davide Passaseo, Giulia Bonaccorso, Michelangelo Fichera, Lapo Renai, Lorenzo Venturini, Ilaria Colzi, Donatella Fibbi, Massimo Del Bubba

{"title":"Biochar from co-pyrolysis of biological sludge and sawdust in comparison with the conventional filling media of vertical-flow constructed wetlands for the treatment of domestic-textile wastewater.","authors":"Mariem Ayadi, Davide Passaseo, Giulia Bonaccorso, Michelangelo Fichera, Lapo Renai, Lorenzo Venturini, Ilaria Colzi, Donatella Fibbi, Massimo Del Bubba","doi":"10.2166/wst.2024.056","DOIUrl":"10.2166/wst.2024.056","url":null,"abstract":"A biochar from co-pyrolysis of a mixture of sawdust and biological sludge (70/30, w/w), providing a high environmental compatibility in terms of water leachable polycyclic aromatic hydrocarbons and inorganic elements, together with a remarkable surface area (389 m2/g), was integrated into laboratory-scale vertical-flow constructed wetlands (VF-CWs), planted with Phragmites australis and unplanted. Biochar-filled VF-CWs have been tested for 8 months for the refining of effluents from the tertiary clariflocculation stage of a wastewater treatment plant operating in a mixed domestic-industrial textile context, in comparison with systems filled with gravel. VF-CW influents and effluents were monitored for chemical oxygen demand (COD), nitrogen and phosphorus cycles, and absorbance values at 254 and 420 nm, the latter as rapid and reliable screening parameters of the removal of organic micropollutants containing aromatic moieties and/or chromophores. Biochar-based systems provided a statistically significant improvement in COD (Δ = 22%) and ammonia (Δ = 35%) removal, as well as in the reduction of UV-Vis absorbance values (Δ = 32-34% and Δ = 28% for 254 and 420 nm, respectively), compared to gravel-filled microcosms. The higher removal of organic was mainly attributed to the well-known adsorption properties of biochars, while for nitrogen the biological mechanisms seem to play a predominant role.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"89 5","pages":"1252-1263"},"PeriodicalIF":2.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wst_2024_056/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140120759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phytoremediation capability of Anabaena sp. for high organic and chromium-loaded wastewater in membrane bioreactors. 膜生物反应器中 Anabaena sp. 对高有机物和含铬废水的植物修复能力。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-03-01 DOI: 10.2166/wst.2024.061

Priyankari Bhattacharya, Subhadip Jana, Sathi Banerjee

引用次数: 0

Profiling wastewater characteristics in intra-urban catchments using online monitoring stations. 利用在线监测站分析城市内集水区的废水特征。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-03-01 Epub Date: 2024-03-04 DOI: 10.2166/wst.2024.069

Lluís Corominas, Ian Zammit, Sergi Badia, Josep Pueyo-Ros, Lluís Maria Bosch, Eusebi Calle, David Martínez, Maria José Chesa, Cristian Chincolla, Ariadna Martínez, Anna Llopart-Mascaró, Francisco Javier Varela, Elena Domene, Marta Garcia-Sierra, Xavier Garcia-Acosta, Mar Satorras, Jordi Raich-Montiu, Roger Peris, Raül Horno, Edgar Rubión, Sergi Simón, Marc Ribalta, Ian Palacín

{"title":"Profiling wastewater characteristics in intra-urban catchments using online monitoring stations.","authors":"Lluís Corominas, Ian Zammit, Sergi Badia, Josep Pueyo-Ros, Lluís Maria Bosch, Eusebi Calle, David Martínez, Maria José Chesa, Cristian Chincolla, Ariadna Martínez, Anna Llopart-Mascaró, Francisco Javier Varela, Elena Domene, Marta Garcia-Sierra, Xavier Garcia-Acosta, Mar Satorras, Jordi Raich-Montiu, Roger Peris, Raül Horno, Edgar Rubión, Sergi Simón, Marc Ribalta, Ian Palacín","doi":"10.2166/wst.2024.069","DOIUrl":"10.2166/wst.2024.069","url":null,"abstract":"This study aims to investigate the differences in intra-urban catchments with different characteristics through real-time wastewater monitoring. Monitoring stations were installed in three neighbourhoods of Barcelona to measure flow, total chemical oxygen demand (COD), pH, conductivity, temperature, and bisulfide (HS-) for 1 year. Typical wastewater profiles were obtained for weekdays, weekends, and holidays in the summer and winter seasons. The results reveal differences in waking up times and evening routines, commuting behaviour during weekends and holidays, and water consumption. The pollutant profiles contribute to a better understanding of pollution generation in households and catchment activities. Flows and COD correlate well at all stations, but there are differences in conductivity and HS- at the station level. The article concludes by discussing the operational experience of the monitoring stations.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"89 6","pages":"1512-1525"},"PeriodicalIF":2.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140337005","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

Retraction: Water Science & Technology 86 (9), 2303-2335: Synthesis characterization of Zn-based MOF and their application in degradation of water contaminants, Saade Abdalkareem Jasim, Hawraz Ibrahim M. Amin, Ahmad Rajabizadeh, Marcos Augusto Lima Nobre, Fariba Borhani, Abduladheem Turki Jalil, Marwan Mahmood Saleh, Mustafa M. Kadhim and Mehrdad Khatami, https://doi.org/10.2166/wst.2022.318. 撤回：水科学与技术》86 (9)，2303-2335：锌基 MOF 的合成特征及其在水污染物降解中的应用，Saade Abdalkareem Jasim、Hawraz Ibrahim M. Amin、Ahmad Rajabizadeh、Marcos Augusto Lima Nobre、Fariba Borhani、Abduladheem Turki Jalil、Marwan Mahmood Saleh、Mustafa M. Kadhim 和 Mehrdad Khatami，https://doi.org/10.2166/wst.2022.318。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-03-01 DOI: 10.2166/wst.2024.071

引用次数: 0

Surface modification of nanofiltration membrane using polyoxometalates for improved separation and antifouling performance. 使用聚氧化金属盐对纳滤膜进行表面改性，以提高分离和防污性能。

IF 2.7 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-02-01 DOI: 10.2166/wst.2024.048

Qi Lu, Haodong Yang, Zhe Chen, Lei Yao

{"title":"Surface modification of nanofiltration membrane using polyoxometalates for improved separation and antifouling performance.","authors":"Qi Lu, Haodong Yang, Zhe Chen, Lei Yao","doi":"10.2166/wst.2024.048","DOIUrl":"10.2166/wst.2024.048","url":null,"abstract":"In this study, polyoxometalates (POMs) as a core-modifying material was used to fabricate the nanofiltration (NF) membrane on the polyvinylidene fluoride (PVDF) microfiltration membrane substrate via a novel interfacial polymerization (IP) method. The formation mechanism of the POMs-modified composite membrane was proposed. The separation and antifouling properties were further investigated. After cross-linking with POMs through the new IP reaction, the modified composite membrane showed improved hydrophilicity, water flux, and salt rejection. In the humic acid fouling experiment, the POMs-modified membrane exhibited the best antifouling performance, with a flux recovery rate of up to 91.3%. Electrochemical impedance spectroscopy was further used to investigate the antifouling performance of the membranes. Nyquist and Bode plots of the POMs-modified membranes showed no significant change before and after fouling compared to the PVDF membrane substrate, indicating reduced fouling attachment on the modified membrane, which was consistent with the fouling index and flux variation observed during the fouling experiment. Our findings provide a simple and valuable route for fabricating POMs-functionalized NF membranes with desirable separation and antifouling performance.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"89 4","pages":"904-914"},"PeriodicalIF":2.7,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wst_2024_048/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139997622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0