Water Science and Technology最新文献_第4页

Simulation-based process optimization of full-scale advanced wastewater treatment systems using powdered activated carbon. 使用粉末活性炭的全规模先进废水处理系统的基于仿真的工艺优化。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 Epub Date: 2024-11-21 DOI: 10.2166/wst.2024.382

Hana Atallah Al-Asad, Jens Alex, Janna Parniske, Tobias Morck

{"title":"Simulation-based process optimization of full-scale advanced wastewater treatment systems using powdered activated carbon.","authors":"Hana Atallah Al-Asad, Jens Alex, Janna Parniske, Tobias Morck","doi":"10.2166/wst.2024.382","DOIUrl":"https://doi.org/10.2166/wst.2024.382","url":null,"abstract":"This study extends a previously developed competitive modeling approach for predicting the adsorption of organic micropollutants (OMPs) on powdered activated carbon (PAC) in full-scale advanced wastewater treatment. The approach incorporates adsorption analysis for organic matter fractionation, assumes pseudo-first order kinetics and differentiates between fresh and partially loaded PAC through fraction segregation. Validation through full-scale measurement campaigns reveals successful model predictions of OMP removal, underestimating, however, diclofenac removals by 15-20%. Based on model testing, the impact of excess PAC return to the biological stage enhanced OMP removal, reaching up to 15% improvement for benzotriazole, carbamazepine and metoprolol, but no evident improvement of diclofenac removal. Intermittent PAC dosing revealed rapid process response, where organic matter concentration increased within 2 h after PAC cut-off. The simulation-based study demonstrated that during rain events, the overall OMP removal efficiency in the entire wastewater treatment plant was reduced by approximately 50% due to a shift of OMP concentration and a shortened hydraulic retention time in the biological and adsorption stages. Testing of various PAC dosing strategies revealed potential PAC savings of 10-15% compared to inflow-proportional dosing by using predefined OMP removal grades or maximum allowable effluent OMP concentrations as criteria for PAC dosing.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"90 11","pages":"3008-3028"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823494","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

Treated greywater as a novel water resource: The perspective of greywater treatment for reuse from a bibliometric analysis. 经处理的灰水作为一种新型水资源：从文献计量学分析的角度看灰水处理的回用。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 Epub Date: 2024-11-27 DOI: 10.2166/wst.2024.384

Diana Yánez, Lidia Carolina Espinoza, Ignacio Vargas, Julio Romero, María Jesús Aguirre, Roxana Arce, Esteban Quijada-Maldonado, Ricardo Abejon

{"title":"Treated greywater as a novel water resource: The perspective of greywater treatment for reuse from a bibliometric analysis.","authors":"Diana Yánez, Lidia Carolina Espinoza, Ignacio Vargas, Julio Romero, María Jesús Aguirre, Roxana Arce, Esteban Quijada-Maldonado, Ricardo Abejon","doi":"10.2166/wst.2024.384","DOIUrl":"https://doi.org/10.2166/wst.2024.384","url":null,"abstract":"The current global water crisis has prompted research into technologies that can reuse different water resources to mitigate water scarcity. The use of treated greywater can be proposed to provide additional water resources. By reusing this water in different applications, this water crisis can be mitigated at the local scale. This study presents a bibliometric analysis to assess the state of the art of greywater treatment and its reuse technologies. This analysis is based on the scientific literature published until 2023 in Scopus regarding greywater treatment and 1,024 documents were found. The results showed a clear exponential increase in the accumulated number of publications in this topic, which was spurred during the mid-1990s. The most prolific country was the United States, while China, the other typical scientific superpower in most fields, occupied the sixth position in the ranking. Environmental Sciences was the knowledge subject with more documents, followed by Engineering and Chemical Engineering. The bibliometric study was complemented using SciMAT to create bibliometric networks that represent the dynamic evolution of the themes. The most important themes were identified, among which three key points stand out: greywater characterization, technologies for greywater treatment, and water management, including the reuse of treated greywater.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"90 11","pages":"3076-3110"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823511","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

Reduction of blue and total water footprints per unit biomass yield of silage maize with grey water footprint input in subsurface drip irrigation. 通过地表下滴灌的灰色水足迹输入，减少青贮玉米单位生物量产量的蓝色水足迹和总水足迹。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 Epub Date: 2024-11-19 DOI: 10.2166/wst.2024.380

Talip Cakmakci, Ustun Sahin

{"title":"Reduction of blue and total water footprints per unit biomass yield of silage maize with grey water footprint input in subsurface drip irrigation.","authors":"Talip Cakmakci, Ustun Sahin","doi":"10.2166/wst.2024.380","DOIUrl":"https://doi.org/10.2166/wst.2024.380","url":null,"abstract":"Reducing blue and total water footprint outputs in irrigated agriculture with greywater footprint input from irrigation with recycled wastewater is an issue that needs to be investigated in protecting freshwater resources by increasing water availability. Therefore, the effect of three different irrigation levels of recycled wastewater and freshwater in the subsurface drip irrigation (SSDI), surface drip irrigation (SDI), and furrow irrigation (FI) methods on the blue, green, grey, and total water footprints per unit yield of silage maize, which is widely produced worldwide and has high water consumption, was investigated with a 2-year field study. The blue and total water footprints per unit fresh and dry biomass yields in the SSDI were 1.20-1.23-fold lower than that in the SDI and 1.69-1.76-fold lower than that in the FI. Full wastewater irrigation provided the lowest blue, green, and total water footprints per unit yield across all methods. Full wastewater irrigation under SSDI provided the lowest total water footprint per unit fresh biomass yield, similar to the 33% deficit irrigation practice with wastewater. It was concluded that full irrigation with recycled wastewater as a greywater resource under SSDI may be the most suitable application for the sustainable management of scarce blue water resources.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"90 11","pages":"2991-3007"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823488","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

Factorial experiment to identify two-way interactions between temperature, harvesting period, hydraulic retention time, and light intensity that influence the biomass productivity and phosphorus removal efficiency of a microalgae-bacteria biofilm. 通过因子实验，确定温度、收割期、水力停留时间和光照强度之间的双向交互作用对微藻-细菌生物膜的生物量生产率和除磷效率的影响。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 Epub Date: 2024-11-09 DOI: 10.2166/wst.2024.367

Jacob Dean Watkins, Clayton Jack Lords, Abiela Meek Bradley, David Richard Cutler, Ronald Charles Sims

{"title":"Factorial experiment to identify two-way interactions between temperature, harvesting period, hydraulic retention time, and light intensity that influence the biomass productivity and phosphorus removal efficiency of a microalgae-bacteria biofilm.","authors":"Jacob Dean Watkins, Clayton Jack Lords, Abiela Meek Bradley, David Richard Cutler, Ronald Charles Sims","doi":"10.2166/wst.2024.367","DOIUrl":"https://doi.org/10.2166/wst.2024.367","url":null,"abstract":"Rotating algae biofilm reactors (RABRs) can reduce energy requirements for wastewater reclamation but require further optimization for implementation at water resource recovery facilities (WRRF). Optimizing RABR operation is challenging because conditions at WRRF change frequently, and disregarding interaction terms related to these changes can produce incorrect conclusions about RABR behavior. This study evaluated the two-way interaction and main effects of four factors on the biomass productivity and phosphorus removal efficiency of a microalgae-bacteria biofilm grown in municipal anaerobic digester centrate, with factor levels and operating conditions selected to mimic a pilot RABR at a WRRF in Utah. Two-way interactions harvesting period*light intensity (LI), harvesting period*temperature, and LI*hydraulic retention time (HRT) had significant effects on biomass productivity: at high temperature and low LI, highest biomass productivity was achieved with a 14-day harvesting period, but at medium temperature and high LI, highest biomass productivity was achieved with a 7-day harvesting period. At high HRT, highest biomass productivity occurred at low LI, but at low HRT, highest biomass productivity occurred at high LI. Phosphorus removal was strongly influenced by LI and occurred most rapidly during the first 2 days HRT, which suggests precipitation contributed significantly to phosphorus removal. These observations provide insight for further RABR optimization.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"90 11","pages":"2961-2977"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823467","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

Effects of low temperature on the microbial community of MBBR filler biofilm. 低温对MBBR填料生物膜微生物群落的影响。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 Epub Date: 2024-12-12 DOI: 10.2166/wst.2024.391

Xiaoxiao Zhu, Wenjie Chang, Yu Kong, Ying Cai, Zhaoming Huang, Tianqi Wu, Miao Zhang, Huijun Nie, Yuan Wang

{"title":"Effects of low temperature on the microbial community of MBBR filler biofilm.","authors":"Xiaoxiao Zhu, Wenjie Chang, Yu Kong, Ying Cai, Zhaoming Huang, Tianqi Wu, Miao Zhang, Huijun Nie, Yuan Wang","doi":"10.2166/wst.2024.391","DOIUrl":"https://doi.org/10.2166/wst.2024.391","url":null,"abstract":"Moving bed biofilm reactors can purify urban domestic sewage through microbial biodegradation. High-throughput sequencing was used to study the response mechanism of the biofilm microbial community to temperature. The effluent quality of the reactor declined with the decrease in temperature. Proteobacteria, Bacteroidota, and Nitrospirota were the dominant bacteria, accounting for 59.2, 11.9, and 9.4%, respectively. Gammaproteobacteria (38.3%), Alphaproteobacteria (23.2%), and Bacteroidia (12.4%) were the dominant bacteria at the class level. Low temperature had an obvious directional domestication effect on microbial flora, and the composition of the bacterial community was more similar. Pseudomonas was one of the dominant bacterial groups at 5 °C. Nitrospira (p < 0.001) and Trichococcus (p < 0.05) were significantly negatively correlated with effluent ammonia nitrogen and significantly positively correlated with NO3- (p < 0.05) at low temperature. Functional bacteria related to chemoheterotrophy (25.88%) and aerobic_chemoheterotrophy (21.56%) accounted for a relatively high proportion. The bacteria related to nitrate reduction only accounted for 2.62%. Studies have shown that low temperatures can inhibit the growth of nitrogen-cycling bacteria, and few domesticated and selected nitrogen-cycling bacteria play a major role in the removal and transformation of ammonia nitrogen. The degradation of chemical oxygen demand can still be achieved through the adsorption and degradation of dominant functional bacteria.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"90 12","pages":"3166-3179"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142903030","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

Modelling and set-point definition for the development of a joint control system of two interconnected wastewater treatment plants and its application in practice. 两个互连污水处理厂联合控制系统的建模和设定点定义及其在实践中的应用。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 Epub Date: 2024-11-27 DOI: 10.2166/wst.2024.386

Jan Tobias Schütz, Anne Kleyböcker, Sille Bendix Larsen, Malene Kristensen, Christian Remy, Ulf Miehe

引用次数: 0

Technical and financial evaluation of an emerging thermochemical technology for sustainable management of municipal wastewater sludge. 城市污水污泥可持续管理的新兴热化学技术的技术和财务评价。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 Epub Date: 2024-12-09 DOI: 10.2166/wst.2024.395

John Ngoni Zvimba, Eustina Musvoto, Buyisile Kholisa

{"title":"Technical and financial evaluation of an emerging thermochemical technology for sustainable management of municipal wastewater sludge.","authors":"John Ngoni Zvimba, Eustina Musvoto, Buyisile Kholisa","doi":"10.2166/wst.2024.395","DOIUrl":"https://doi.org/10.2166/wst.2024.395","url":null,"abstract":"The management of municipal wastewater sludge is a significant challenge for wastewater management, particularly the need to manage and dispose of the sludge in an environmentally friendly and sustainable manner. The emergence of stricter regulations regarding landfill disposal of wastewater sludge necessitates the need for alternative options for municipal wastewater sludge management, with thermochemical technologies potentially contributing towards achieving carbon neutrality goals and fostering sustainable development. This study sought to address these challenges through a technical and financial evaluation of a pilot-scale emerging thermochemical technology, the enhanced hydrothermal polymerization to provide adequate understanding of the technology's feasibility regarding its application for municipal wastewater sludge volarization into a multi-use hydrochar. The study findings indicated that the enhanced hydrothermal polymerization-generated hydrochar exhibited significant energy content compared to wastewater sludge, suggesting the potential use of the hydrochar as an energy source. The preliminary designs of a full-scale greenfield installation and retrofit processing 50 t/d and 35 t/d dry sludge, respectively, were evaluated to be technically feasible. Furthermore, on the basis of preliminary designs, the enhanced hydrothermal polymerization technology was determined to be the most financially feasible option, also offering other unique advantages over well-established technologies currently used within municipal wastewater services.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"90 12","pages":"3139-3148"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142903452","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

Modelling and integrated assessment of urban water systems. 城市水系统建模和综合评估。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 DOI: 10.2166/wst.2024.389

Mariane Yvonne Schneider, Kimberly Solon, Sovanna Tik

引用次数: 0

Efficient degradation of tetracycline by Mn(III)-microbial complexes mediated by mnOx@ACF in sequencing batch reactors: performance, mechanism, and effect on microbial community structure. 序批式反应器中mnOx@ACF介导的Mn(III)-微生物配合物对四环素的高效降解：性能、机制及对微生物群落结构的影响

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 Epub Date: 2024-12-02 DOI: 10.2166/wst.2024.390

Huo Zhou, Lixi Xiao, Yuwei Deng, Rongling Wang, Qiang Li, Yuxuan Ye, Xuanyuan Pei, Lei Sun, Yingzhou Zhang, Fei Pan

{"title":"Efficient degradation of tetracycline by Mn(III)-microbial complexes mediated by mnOx@ACF in sequencing batch reactors: performance, mechanism, and effect on microbial community structure.","authors":"Huo Zhou, Lixi Xiao, Yuwei Deng, Rongling Wang, Qiang Li, Yuxuan Ye, Xuanyuan Pei, Lei Sun, Yingzhou Zhang, Fei Pan","doi":"10.2166/wst.2024.390","DOIUrl":"https://doi.org/10.2166/wst.2024.390","url":null,"abstract":"Engineered nanomaterials are widely used in water and wastewater treatment processes, and minimizing their adverse effects on biological treatment processes in wastewater treatment plants has become the primary focus. In this study, activated carbon fiber (ACF)-loaded manganese oxide nanomaterials (MnOx@ACF) were synthesized. A small-scale sequencing batch reactor (SBR) was constructed to simulate the synergistic degradation of pollutants by nanomaterials and microorganisms and the effects of nanomaterials on the structure of the microbial community in a wastewater treatment plant. The MnOx@ACF exhibited efficient removal of pollutants (98.7% in 30 cycles) and chemical oxygen demand (COD 96.4% in 30 cycles) through the formation of Mn-microbial complexes and enhanced cycling between Mn(III) and Mn(II) over 30 operating cycles. Metagenome analysis results showed that the microbial population composition and functional abundance increased when the SBR was exposed to different dosages of MnOx@ACF for a long time, among which 0.2 g/L MnOx@ACF exhibited the highest stimulation and influence on the functional abundance of microorganisms, which showed optimum ecological effects.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"90 11","pages":"3111-3122"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824454","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

Optimising Venturi flume oxygen transfer efficiency using uncertainty-aware decision trees. 利用不确定性感知决策树优化文丘里水槽氧传递效率。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2024-12-01 DOI: 10.2166/wst.2024.393

Nand Kumar Tiwari, Dinesh Panwar

{"title":"Optimising Venturi flume oxygen transfer efficiency using uncertainty-aware decision trees.","authors":"Nand Kumar Tiwari, Dinesh Panwar","doi":"10.2166/wst.2024.393","DOIUrl":"https://doi.org/10.2166/wst.2024.393","url":null,"abstract":"This study optimizes standard oxygen transfer efficiency (SOTE) in Venturi flumes investigating the impact of key parameters such as discharge per unit width (q), throat width (W), throat length (F), upstream entrance width (E), and gauge readings (Ha and Hb). To achieve this, a comprehensive experimental dataset was analyzed using multiple linear regression (MLR), multiple nonlinear regression (MNLR), gradient boosting machine (GBM), extreme gradient boosting (XRT), random forest (RF), M5 (pruned and unpruned), random tree (RT), and reduced error pruning (REP). Model performance was evaluated based on key metrics: correlation coefficient (CC), root mean square error (RMSE), and mean absolute error (MAE). Among the proposed models, M5_Unprun emerged as the top performer, exhibiting the highest CC (0.9455), the lowest RMSE (0.1918), and the lowest MAE (0.0030). GBM followed closely with a CC value of 0.9372, an RMSE value of 0.2067, and an MAE value of 0.0006. Uncertainty analysis further solidified the superior performance of M5_Unpruned (0.7522) and GBM (0.8055), with narrower prediction bands compared to other models, including MLR, which exhibited the widest band (1.4320). One-way analysis of variance confirmed the reliability and robustness of the proposed models. Sensitivity, correlation, and SHapley Additive exPlanations analyses identified W and Hb as the most influencing factors.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"90 12","pages":"3210-3240"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142903261","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