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A review of hybrid solar desalination systems: structure and performance Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-16 Mohammed A. Alghassab
Abstract The purpose of this study is to explore the architecture and functioning of hybrid solar desalination systems and investigate their potential as a sustainable solution for water purification. The study reveals that solar-powered desalination systems offer a remarkable alternative to traditional methods, as they rely on clean solar energy and produce no noise or sound pollution. In addition
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Membrane distillation of wastewater: comparison of model and real organics Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-16 Rasikh Habib, Mai Phuong, Muhammad Bilal Asif, Guangming Jiang, Muttucumaru Sivakumar
Abstract Fouling behaviour in membrane distillation (MD) processes plays a crucial role in determining their widespread acceptability. Most studies have primarily focused on model organic foulants, such as humic acid (HA) and sodium alginate (SA). This study investigates the fouling of a polytetrafluoroethylene membrane in a direct contact MD (DCMD) using model organics (i.e., HA and SA) and real wastewater
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Tetracycline removal using NaIO4 activated by MnSO4: design and optimization via response surface methodology Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-15 Jingyi Yang, Yanjiao Gao, Tiehong Song, Jian Ye, Lihong Zhao, Rui Su
Abstract The appearance of recalcitrant organic pollutants such as antibiotics in water bodies has gained a lot of attention owing to their adverse effects on organisms and humans. The current study aims to develop a novel approach to eliminate antibiotic tetracycline (TC) from a synthetic aqueous solution based on the advanced oxidation process triggered by MnSO4-catalyzed NaIO4. Single-factor experiment
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Iron-based autotrophic denitrification driven by sponge iron for nitrite removal in an anaerobic bioreactor: effect of iron and carbon source Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-10 Shuang Ren, Peng Wang, Wenxuan Li, Hongjuan Zhu, Kaiyao Hu, Hao Mu, Xiaoyi Gao
Abstract The study investigated the denitrification effect of the iron autotrophic denitrification process for removing nitrite under anaerobic conditions, utilizing sponge iron as the electron donor. When the C/N ratio equaled 1, defined as the ratio of chemical oxygen demand to total nitrogen (TN), and the influent nitrite nitrogen (NO2−-N) was at 80 mg/L, the average steady-state TN effluent concentration
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Effect of electrolytic zero-valent iron activated sodium hypochlorite on sludge dewatering performance Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-09 Shaodong Guo, Yuhang Wu, Zhangyu Wang, Xi Yin
Abstract Using electrolytic zero-valent iron-activated sodium hypochlorite (EZVI-NaClO) to pretreat sludge, the capillary suction time (CST) was utilized to evaluate sludge dewaterability. Ammonia nitrogen (NH4-N), dissolved phosphorus, and total phosphorus in the supernatant were used to analyze sludge disintegration. This approach aimed to evaluate the effectiveness of the pretreatment process and
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Can Blue-Green Infrastructure enhance resilience in urban drainage systems during failure conditions? Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-09 Seith N. Mugume, Hilary Kibibi, Johanna Sorensen, David Butler
Abstract The need to enhance the resilience of urban drainage systems (UDSs) in view of emerging global climate change and urbanisation threats is well recognised. Blue-Green Infrastructure (BGI) provides a suitable strategy for building the resilience of existing UDSs. However, there are limited quantitative studies that provide evidence of their effectiveness for increased uptake in cities. In this
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Microplastics’ toxic effects and influencing factors on microorganisms in biological wastewater treatment units Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-08 Sijie Zhou, Lili Wang, Jin Liu, Chuanguo Zhang, Xianbin Liu
Abstract Prior to entering the water body, microplastics (MPs) are mostly collected at the sewage treatment plant and the biological treatment unit is the sewage treatment facility's central processing unit. This review aims to present a comprehensive analysis of the detrimental impacts of MPs on the biological treatment unit of a sewage treatment plant and it covers how MPs harm the effluent quality
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Statistical evaluation of trends of water quality monitoring parameters relevant to cyanobacterial blooms in the urban tropical reservoir Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-08 Antonio Francisco Francisco da Silva Junior, Katia Ribeiro, José Ermírio Ferreira de Moraes, Werner Siegfried Hanisch
Abstract The accelerated growth of cyanobacteria in water bodies is a global critical environmental issue caused by continuous discharges of effluents into the environment that are rich in phosphorus and nitrogen. So, cyanobacteria have found propitious conditions for proliferation, provoking significant ecological imbalances. Cyanobacteria produce cyanotoxins, which are harmful to life, and compounds
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Adaptive river flow measurement method based on spatiotemporal image velocimetry and optical flow Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-07 Jianping Wang, Yingbo Chen, Guangqiang Yao, Neng Li
Abstract This paper proposes an adaptive river discharge measurement method based on spatiotemporal image velocimetry (STIV) and optical flow to solve the problem of blurred texture features and limited measurement accuracy under complex natural environmental conditions. Optical flow tracking generates spatiotemporal images by following the flow mainstream direction of rivers with both regular and
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Integrated assessment of future climate and land use changes on urban floods: a Markov chain and PCSWMM-based approach for Hyderabad case study Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-07 Manchikatla Sagar Kumar, Umamahesh N. V.
Abstract This research examines the impact of climate change and urban expansion on urban drainage systems in Hyderabad (Zone-XII, Zone-IV&V), India. It employs a Markov chain-based framework to simulate future climate and land changes. Integrated 1D-2D PCSWMM model is used to assess the hazards posed by these changes. Present and future extreme rainfall event(s) (1–10-days) are simulated to determine
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Battery waste-derived magnetic Fe–Mn–Zn/C composites as an electro-Fenton-like catalyst for the degradation of sodium dodecyl sulfate surfactant Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-06 Azhan Ahmad, Monali Priyadarshini, Makarand M. Ghangrekar, Rao Y. Surampalli
Abstract A batch-scale electro-Fenton (EF) process was performed using graphite anode and waste battery-based Fe -Mn -Zn/C electrocatalyst coated on low-cost graphite felt cathode. The effectiveness of the EF's performance was evident with around 83.9 + 4.1% removal of 20 mg/L of sodium-dodecyl sulfate surfactant (SDS) at an optimum current density (CD) of 5.0 mA/cm2, Na2SO4 of 0.05 M, initial pH of
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Corrigendum: Water Sci Technol 1 July 2023; 88 (1): 23–34; Polishing wastewater effluent using plants: floating plants perform better than submerged plants in both nutrient removal and reduction of greenhouse gas emission. Lisanne Hendriks, Alfons J. P. Smolders, Thom van den Brink, Leon P. M. Lamers, Annelies J. Veraart Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-05
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Characteristics of dissolved organic matter during the cyanobacterial degradation in Chaohu Lake, China Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-01 Qiao Cheng, Xi He, Airong Feng, Wenjuan Ouyang, Yanyun Hu, Jingwei Feng, Liu Zhang, Hao Yin, Liugen Zheng
Abstract The actual DOM in Chaohu Lake was used to feed cyanobacterial to explore the changes of microbial communities, fluorescence spectral characteristics and molecular composition of DOM during the degradation of cyanobacteria. It is found that cyanobacterial grow periodically depending on the concentration of nutrients with the decreasing concentration of nutrient salts. Both Bacteroidetes and
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Enhancing drought prediction precision with EEMD-ARIMA modeling based on standardized precipitation index Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-01 Reza Rezaiy, Ani Shabri
Abstract This study introduces ensemble empirical mode decomposition (EEMD) coupled with the autoregressive integrated moving average (ARIMA) model for drought prediction. In the realm of drought forecasting, we assess the EEMD-ARIMA model against the traditional ARIMA approach, using monthly precipitation data from January 1970 to December 2019 in Herat province, Afghanistan. Our evaluation spans
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Experimental study of the effect of high-strength clogging-resistant permeable pavement (CRP) on the runoff using a rainfall simulator Water Sci. Technol. (IF 2.7) Pub Date : 2024-02-01 Alireza Rezaei, Hojat Karami
Abstract Permeable pavements play an effective role in reducing runoff by decreasing the impermeable area. But, conventional permeable pavements suffer disadvantages such as low resistance. To address this, the ‘high-strength clogging-resistant permeable pavement (CRP)’ has been developed. The present study aimed to evaluate the performance of the CRP model with varying percentages of coverage (A)
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Approximation in scour depth around spur dikes using novel hybrid ensemble data-driven model Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-30 Balraj Singh, Vijay K. Minocha
Abstract The scouring process near spur dikes poses a threat to riverbank stability, making it crucial for river engineering to accurately calculate the maximum scour depth. However, determining the maximum scour depth has been challenging due to the intricacy of scour phenomena surrounding these structures. This research introduces a reliable ensemble data-driven model by hybridizing random tree (RT)
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Biochar mitigates the adverse effects of antimony on methanogenic activity: role as methane production-enhancer Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-30 Ana K. Valenzuela-Cantú, Marina M. Atilano-Camino, Francisco J. Cervantes, Aurora M. Pat Espadas
Abstract Antimony, extensively used in energy applications, poses toxicity and contamination concerns, especially in anaerobic environments where its impact on microbial activity is poorly understood. Emerging remedies, like biochar, show promise in soil and water treatment. This study investigates biochar's influence on methanogenic activity under Sb(V) and Sb(III) stress using anaerobic sludge as
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Effective degradation of quinoline by catalytic ozonation with MnCexOy catalysts: performance and mechanism Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-29 Jie Zhang, Zhaochang Wu, Ben Dong, Sijie Ge, Shilong He
Abstract Quinoline inevitably remains in the effluent of coking wastewater treatment plants due to its bio-refractory nature, which might cause unfavorable effects on human and ecological environments. In this study, MnCexOy was consciously synthesized by α-MnO2 doped with Ce3+ (Ce:Mn = 1:10) and employed as the ozonation catalyst for quinoline degradation. After that, the removal efficiency and mechanism
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Cheap and efficient strategy for photocatalytic degradation of ionic liquids by La/Ce-codoped TiO2@PAM composites Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-29 Honglian Liang, Jianli Jiao, Danyang Dou, Siyu Li
Abstract Ionic liquids are regarded as green solvents mainly due to their non-volatile and easy regeneration and recycling properties. However, ionic liquids have negative effects on the environment and human health, especially alkyl imidazole ionic liquids are more toxic than traditional organic solutions. Studies on the toxicology, ecotoxicology, and degradation of ionic liquids are rarely found
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Impact of low and high temperatures on aerobic granular sludge treatment of industrial wastewater Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-25 Eirini Tsertou, Michel Caluwé, Dorothee Goettert, Koen Goossens, Karina Seguel Suazo, Catharina Vanherck, Jan Dries
Abstract The goal of this study was to unravel the impact of high and low temperatures (T) on glycogen-accumulating microorganisms (GAOs) which were stimulated in an aerobic granular sludge plant fed with industrial wastewater, which is derived from the cleaning of trucks transporting chocolate and beer. Among GAOs, Ca. Competibacter was the most abundant. The long-term impact on (1) anaerobic dissolved
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Study on the existing forms and recovery efficiencies of phosphorus in biochar from excess sludge Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-25 Changzi Guo, Zhao Wanqin, Yi Han, Xuli Zhang
Abstract With the background of carbon neutrality, the resource and energy utilization of excess sludge (ES) have become the focus of future research. The pyrolysis of ES can produce biochar and enrich phosphorus (P). In this paper, the existing forms and recovery efficiencies of P in biochar from ES (BCES) were investigated. The results showed that the total phosphorus (TP) content of BCES at 850
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Comparison of the wastewater treatment performance of continuously and discontinuously mixed high-rate algal ponds at Kingston on Murray Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-23 Sam Butterworth, Howard Fallowfield
Abstract High-rate algal ponds (HRAPs) incorporate shallow raceway designs and paddlewheel mixing. HRAPs use UV disinfection and the symbiotic environment between microalgal photosynthesis and heterotrophic bacteria for the assimilation of nutrients for efficient wastewater treatment. Mixing of a HRAP provides a homogenous environment and influences both the disinfection of pathogens and algal growth
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Bio-copper nanoparticle-based superhydrophobic membranes for sustainable oil/water separation Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-23 A. Beagan, C. Chen, M. E. Mohamed
Abstract The effective separation of oil and water presents a significant global challenge due to the growing prevalence of industrial oily wastewater. In this investigation, a superhydrophobic (SH) coating based on bio-copper (Cu) was successfully created using the grape seed extract and applied onto a textile fabric (TF) to create a highly efficient membrane for oil–water (O–W) separation. The characteristics
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Pretreatment of hypersaline and high-organic wastewater with a three-dimensional electrocatalytic system: a pilot-scale study Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-22 Chengyi Fang, Shiwei Xie, Tian Xiao, Zhi Liu, Hui Hong, Shuyi Gong, Xixiang Liu
Abstract The three-dimensional electrocatalytic oxidation (3DEO) is a promising electrochemical system in the treatment of refractory wastewater, but still far from large-scale applications. In this work, we prepared 146.5 Kg Ti-Sn-Sb@γ-Al2O3 particle electrodes to construct a 3DEO system for the pretreatment of hypersaline and high-organic wastewater in an industrial park sewage plant, with activated
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Three-dimensional simulation of the influence of different flotation media in the dissolved air flotation tank through the population balance model Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-22 Jingming Li, Zhenyu Zhang, Yadi Wang, Zhaodong Huang, Jiahui Xu
Abstract Gas–liquid flow in the dissolved air flotation (DAF) tank was studied through computational fluid dynamics through the realizable k-ε model and the population balance model (PBM) to predict the gas content of different flotation mediums (air, carbon dioxide, and chlorine) at different heights of the separation zone in the DAF tank. Simultaneously, a particular focus was placed on studying
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Recovery of phosphorus, magnesium, and potassium from surplus activated sludge using existing sludge treatment facilities and thickened primary sludge Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-18 Yudai Kamiyama, Takuya Shiraiwa, Nao Ishikawa, Shinji Takahashi, Makoto Sasamoto, Masayuki Sasaki, Toru Watanabe, Ayumi Ito
Abstract The separation of P, K, and Mg from surplus activated sludge (SAS) was investigated using existing sludge treatment facilities and the thickened primary sludge (TPS). The addition of the TPS to the SAS storage tank accelerated the anaerobic release of the three elements from SAS with maximum efficiencies of about 60%. The efficiency of P release showed a significant correlation with the oxidation–reduction
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Boosting algorithms for projecting streamflow in the Lower Godavari Basin for different climate change scenarios Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-18 Bhavesh Rahul Mishra, Rishith Kumar Vogeti, Rahul Jauhari, K. Srinivasa Raju, D. Nagesh Kumar
Abstract The present study investigates the ability of five boosting algorithms, namely Adaptive Boosting (AdaBoost), Categorical Boosting (CatBoost), Light Gradient Boosting (LGBoost), Natural Gradient Boosting (NGBoost), and eXtreme Gradient Boosting (XGBoost) for simulating streamflow in the Lower Godavari Basin, India. Monthly rainfall, temperatures, and streamflow from 1982 to 2020 were used for
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Numerical study on hydraulic characteristics of rotating stepped dropshafts in deep urban tunnels Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-17 Ruihao Peng, Jiachun Liu, Biao Huang, Xiaodong Yu, David Z. Zhu
Abstract As an important component of the deep tunnel drainage system for dealing with urban waterlogging, the rotating stepped dropshaft has been proposed due to its small air entrainment. However, the hydraulic characteristics inside the shaft still need to be fully studied. In this study, the flow patterns, water velocity, and pressure in the rotating stepped dropshaft under different flow rates
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Phosphorus uptake and release patterns in overwintering constructed floating wetlands Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-17 Jack Dekle, William H. J. Strosnider, Sarah A. White
Abstract Understanding nutrient cycling patterns in plants deployed within constructed floating wetlands (CFWs) is critical for improving CFWs’ design and management practices. This study evaluated phosphorus (P) uptake and release patterns during fall/winter plant senescence and spring regrowth. Two mesocosm-scale CFW experiments were conducted characterizing plant growth, plant tissue P levels, and
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Comparative study of Fe2+/H2O2 and Fe2+/persulfate systems on the pre-treatment process of real pharmaceutical wastewater Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-16 Yang Ma, Yongwen Ma, Jinquan Wan, Yan Wang, Gang Ye, Zhifei Zhang, Yining Lin
Abstract Advanced oxidation technologies based on hydroxyl radical(•OH) and sulfate radical (SO4−•) are two common types of advanced oxidation technologies, but the application of advanced oxidation to wastewater pretreatment has not been reported much and is generally limited to simulated wastewater experiments with a single target pollutant. In this paper, by comparing the pretreatment of Fe2+/H2O2
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Cattle wastewater treatment using green microalga Coelastrella sp. KNUA068 as a promising bioenergy feedstock with enhanced biodiesel quality Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-16 Ho-Seong Suh, Jeong-Mi Do, Hee-Tae Yeo, Ho-Sung Yoon
Abstract Global water scarcity increased the demand for clean water, leading to attention on microalgae-based biological treatment for wastewater due to economic feasibility and sustainable biomass applications. This study isolated indigenous microalga Coelastrella sp. KNUA068 from a wastewater treatment plant, observed its admissible growth rate in diluted cattle wastewater (DCW), and used it for
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Fluoranthene degradation in a persulfate system activated by sulfidated nano zero-valent iron (S-nZVI): performance and mechanisms Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-12 Ruzhuang Zhang, Yi Zhu, Jiaqi Dong, Zhennan Yao, Guilu Zeng, Xianxian Sheng, Ziqian Xu, Shuguang Lyu
Abstract Fluoranthene (FLT) has received mounting focus due to its hazardous properties and frequent occurrence in groundwater. In this study, sulfidated nano zero-valent iron (S-nZVI) was selected as an efficient catalyst for activating persulfate (PS) to degrade FLT. The effects of reagent doses, various water conditions (pH, anions, and humic acid), and the presence of surfactants on FLT degradation
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A systematic review on urban blue-green infrastructure in the south Asian region: recent advancements, applications, and challenges Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-12 Aman Gupta, Bhaskar De
Abstract This study uses a Systematic Literature Review (SLR) process to know the present status of research on urban Blue-Green Infrastructure (BGI) in the lower-middle-income countries of the South Asian region, specifically India, Bangladesh, Sri Lanka, Bhutan, Nepal, and Pakistan, which produced 77 relevant publications after detailed scanning published between 2013 and 2022. It was aimed to analyze
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Spatial constraints or spatial dynamics?: the spatial spillover effect of networks of flood regulation service flows on land-use degree Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-12 Tao Wang, Hongbo Li
Abstract In the face of frequent floods under climate and environmental changes, it is particularly important to measure the supply and demand of flood regulation services. Using the Hainan Island as an illustrative case, this study constructs a spatial spillover model to examine the spatial correlation mode and evolution of regional land-use degree through the network of ecosystem service flow. The
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Water quality's responses to water energy variability of the Yangtze river Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-12 XueQi Tian, Hua Wang, Dongfang Liang, Yichuan Zeng, Yuhan Shen, Yuting Yan, Siqiong Li
Abstract River energy serves as an indicator of pollutant-carrying capacity (PCC), influencing regional water quality dynamics. In this study, MIKE21 hydrodynamics-water quality models were developed for two scenarios, and grid-by-grid numerical integration of energy was conducted for the Yangtze River's mainstream. Comparison of predicted and measured values at monitoring points revealed a close fit
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Degradation of tetracycline by heat/peroxymonosulfate and ultrasound/peroxymonosulfate systems: performance and kinetics Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-11 Huan Deng, Yu Jin, Bojiao Yan, Yi Jiang, Shenggang Yang, Tiehong Song
Abstract In recent decades, water pollution caused by emerging contaminants such as pharmaceuticals, has attracted much attention. Antibiotics are commonly used pharmaceuticals, and their residue in water may accelerate the development of antibiotic resistance genes, which can produce resistance to the treatment of diseases. In this study, two energy-based systems, heat/peroxymonosulfate (PMS) and
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A fuzzy TOPSIS-based approach for prioritizing low-impact development methods in high-density residential areas Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-09 Milad Mehri, Sonia Sadeghi, Seied Mehdy Hashemy Shahdany
Abstract The study successfully implemented six low-impact development (LID) methods to manage surface runoff in urban areas: green roof, infiltration trench, bio retention cell, rain barrel, green roof combined with infiltration trench, and rain barrel combined with bio-retention cell. Each method has unique benefits in mitigating surface runoff effects in urban environments. The following four indicators
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Evaluation of pretreatment routes for seawater desalination by nanofiltration Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-08 Amanda Loreti Hupsel, Cristiano Piacsek Borges, Fabiana Valéria da Fonseca, Gisele Mattedi Barbosa
Abstract Nanofiltration (NF) has been used as the default sulfate removal process in platforms to treat seawater for water flooding. Seawater is generally pretreated by chlorination and cartridge filters to reduce fouling of the membranes; however, this pretreatment is insufficient to provide water quality high enough to maintain the productivity of the NF membranes. In this study, the performances
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Effect of vacuum UV and UV-C treatment on degradation and ecotoxicity of tire wear microrubber leachates Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-08 Emil Bock Nielsen, Konstantinos Stavridis, Niels Iversen, Peter Roslev
Abstract Tire wear microrubber particles (TWMP) are a major source of environmental contamination. Degradation of TWMP is slow and leachates contain toxic constituents including heavy metals, polycyclic aromatic hydrocarbons (PAHs) and organic additives. Few studies have addressed methods to mitigate the potential ecotoxicity of TWMP leachates. This study investigated the effects of UVC (254 nm) and
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Enhancing rainfall–runoff model accuracy with machine learning models by using soil water index to reflect runoff characteristics Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-03 Sarunphas Iamampai, Yutthana Talaluxmana, Jirawat Kanasut, Prem Rangsiwanichpong
Abstract The advancement of data-driven models contributes to the improvement of estimating rainfall–runoff models due to their advantages in terms of data requirements and high performance. However, data-driven models that rely solely on rainfall data have limitations in responding to the impact of soil moisture changes and runoff characteristics. To address these limitations, a method was developed
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Source reduction and end treatment of acid mine drainage in closed coal mines of the Yudong River Basin Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-02 Quanjia Wu, Xiangdong Li, Qiyan Feng, Xibin Li
Abstract After the closure of the Yudong coal mine, the pH value was approximately 3.0, and the Fe and Mn concentrations reached 380 and 69 mg/L, respectively, in the acid mine drainage (AMD), causing serious pollution to the water bodies in the nearby watershed. Combined with the formation conditions of AMD, the comprehensive treatment technology of source reduction–end treatment is adopted to treat
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Effective removal of iron, nutrients, micropollutants, and faecal bacteria in constructed wetlands cotreating mine water and sewage treatment plant effluent Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-02 Jidapa Plaimart, Kishor Acharya, Adrian Blackburn, Wojciech Mrozik, Russell J. Davenport, David Werner
Abstract Regulators in England and Wales have set new targets under the Environment Act 2021 for freshwater quality by 2038 that include halving the length of rivers polluted by harmful metals from abandoned mines and reducing phosphorus loadings from treated wastewater by 80%. In this context, an intriguing win–win opportunity exists in the removal of iron from abandoned mines and phosphate from small
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AnCMBR-AFB-integrated process for the treatment of high nitrogen and phosphorus wastewater Water Sci. Technol. (IF 2.7) Pub Date : 2024-01-02 Huayu Xu, Shoubin Zhang, Fengchao Wang, Kang Xie, Guicai Liu, Yutian Liu
Abstract Improving the nitrogen and phosphorus removal rates and efficiently controlling membrane fouling are the keys to fully exploiting the applicability of anaerobic membrane bioreactor (AnMBR) process in high-concentration wastewater treatment. To that purpose, an integrated reactor composed of an anaerobic ceramic membrane bioreactor and N anaerobic fluidized bed (AnCMBR-AFB) was built and pollutant
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Novel protocol for fouling detection of reverse osmosis membrane based on methylene blue colorimetric method by image processing technique Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-28 Hiren Raval, Ritika Sharma, Ashish Srivastava
Abstract In the current study, a novel methylene blue (MB)-based colorimetric method for a quick, inexpensive, and facile approach for the determination of fouling intensity of reverse osmosis (RO) membrane has been reported. This technique is based on the interaction of MB with the organic foulants and shows the corresponding change in the colour intensity depending on the severity of fouling. The
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Performance of three anion-exchange membranes in fluoride ions removal by electrodialysis Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-27 Fatima Zahra Addar, Idrisse Mohamed, Sarra Kitanou, Mustapha Tahaikt, Azzedine Elmidaoui, Mohamed Taky
Abstract The performance of three anion-exchange membranes (AEMs) in the fluoride ions reduction by electrodialysis (ED) is performed on real and synthetic water. The electric potential method measures the potential difference (PD) between two synthetic anion solutions separated by ACS, AFN and AXE membranes. The selectivity of these three AEMs coupled with the membrane CMX, is a cation-exchange membrane
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A novel measure for long-term sediment reduction inspired by dragonfly wings Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-26 Zhiwei Li, Bing Wang, Feifei Wang, Bin Sun, Shuaikang Zhao
Abstract The sediment accumulation in drainage pipes has long been recognized as a significant concern in the environmental field. This study addresses sediment accumulation in drainage pipes by introducing an innovative bioinspired approach using various shapes and angles of plates for long-term sediment reduction. Through experiments and numerical simulations, the velocity field, the turbulent kinetic
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Seasonality of nitrous oxide emissions at six full-scale wastewater treatment plants Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-25 M. Sieranen, Helena Hilander, Henri Haimi, Timo Larsson, Anna Kuokkanen, Anna Mikola
Abstract Nitrous oxide (N2O) is an ozone-depleting greenhouse gas that contributes significantly to the carbon footprint of a wastewater treatment plant (WWTP). Plant-specific measurement campaigns are required to reliably quantify the emission level that has been found to significantly vary between WWTPs. In this study, the N2O emissions were quantified from five full-scale WWTPs during 4- to 19-day
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Machine learning approaches for adequate prediction of flow resistance in alluvial channels with bedforms Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-25 Ajaz Ahmad Mir, Mahesh Patel
Abstract In natural rivers, flow conditions are mainly dependent on flow resistance and type of roughness. The interactions among flow and bedforms are complex in nature as bedform dynamics primarily regulate the flow resistance. Manning's equation is the most frequently used equation for this purpose. Therefore, there is a need to develop alternate reliable techniques for adequate prediction of Manning's
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Magnetite-boosted syntrophic conversion of acetate to methane during thermophilic anaerobic digestion Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-25 Zi-Fan Wu, Zhao-Long Li, Qing-Hua Liu, Zhi-Man Yang
Abstract Using a batch thermophilic anaerobic system established with 60 mL serum bottles, the mechanism on how microbial enrichments obtained from magnetite-amended paddy soil via repeated batch cultivation affected methane production from acetate was investigated. Magnetite-amended enrichments (MAEs) can improve the methane production rate rather than the methane yield. Compared with magnetite-unamended
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Sizing efficient underdrains for treatment wetlands Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-22 Ania Morvannou, Matthieu Dufresne, Marie-Christine Gromaire, Stéphane Troesch, Nicolas Forquet
Abstract Treatment wetlands are recognized as an effective technology for mitigating the impacts of urban runoff. However, there is no consensus on the design guidelines, and the effects of some design features, such as the underdrain system, remain unexplored. A simple analog model has been developed to mimic the underdrain network (when operating at saturation) and to evaluate the spatial heterogeneity
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Application of a hybrid-fruit-peel (HFP) coagulant in low carbon source wastewater treatment as an external carbon source Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-22 Ying Fu, Qinghe Yue, Shuyuan Luo, Xi Tian
Abstract The application of a hybrid-fruit-peel (HFP) coagulant used as an external carbon source (ECS) in both simulated water and real sewage with a low carbon source with sequencing batch reactor (SBR) was studied compared with that of sodium acetate (NaAc). The impact of HFP on sludge properties (such as extracellular polymer substance (EPS), dehydrogenase activity (DHA), charged property, size
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Assessment of urban flood resilience based on the socio-ecological composite index model: a case study in Wuhua District, Kunming City, China Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-21 Zhiqiang Xie, Donghui Hu, Fengshan Jiang, Xingfeng Fu, Rong Li, Daoyang Zheng, Lei Zhao, Jiarui Xu, Xiangdong Yuan, Yinli Bao, Haibin Zhou, Bin Wang, Qing Wang
Abstract Global climate change and rapid urbanization have increased the frequency of flooding, making urban flood resilience a critical objective. This article introduces a methodology for assessing urban flood resilience, utilizing a social-ecological synthesis index that integrates geographical and temporal data with Geographic Information System (GIS). The study focuses on ten administrative subdistricts
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Marine fungal community composition and diversity across a polluted site in the south Mediterranean coast: the Monastir Bay, Tunisia Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-21 Amel Nakbi, Raja Chaâbane Banaoues, Rym Ben Dhiab, Khemissa Ghozzi, Sameh Belgacem, Rafika Challouf, Najoua Haouas, Hamouda Babba
Abstract Marine fungi communities play a crucial role in the recycling of nutrients, restoration of biological systems, and the overall functioning of ecosystems. While aquatic fungal communities do react to pollution, there is a significant lack of information regarding the changes in the fungal community's structure, caused by marine pollution. In this study, we aim to address this gap in knowledge
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Technical structure and influencing factors of nitrogen and phosphorus removal in constructed wetlands Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-21 Lei Yang, Xiaohui Jin, Yawei Hu, Mingqi Zhang, Huihui Wang, Qian Jia, Yafei Yang
Abstract Constructed wetlands purify water quality by synergistically removing nitrogen and phosphorus pollutants from water, among other pollutants such as organic matter through a physical, chemical, and biological composite remediation mechanism formed between plants, fillers, and microorganisms. Compared with large-scale centralized wastewater treatment systems with high cost and energy consumption
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Evaluating the performance and membrane fouling of a submerged membrane bioreactor (MBR) treating plywood industry wastewater Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-21 Guilherme Gavlak, André Aguiar Battistelli, Carlos Raphael Pedroso, Carlos Magno de Sousa Vidal, Kely Viviane de Souza
Abstract This study evaluates the performance of a membrane bioreactor (MBR) for treating wastewater from the laminated plywood industry. To this end, a pilot-scale MBR was operated for 60 days with a hydraulic retention time of 20 h and a solid retention time of 20 days. The reactor's performance was assessed based on the removal of chemical oxygen demand (COD), phenol, turbidity, and apparent color
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A method based on improved ant colony algorithm feature selection combined with GWO-SVR model for predicting chlorophyll-a concentration in Wuliangsu Lake Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-19 Chenhao Wu, Xueliang Fu, Honghui Li, Hua Hu, Xue Li, Liqian Zhang
Abstract Chlorophyll-a (Chl-a) is an important parameter in water bodies. Due to the complexity of optics in water bodies, it is difficult to accurately predict Chl-a concentrations in water bodies by current traditional methods. In this paper, using Sentinel-2 remote sensing images as the data source combined with measured data, taking Wuliangsu Lake as the study area, a new intelligent algorithm
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Unveiling the hidden threat: spatiotemporal trends and source apportionments of per-and polyfluorinated alkyl substances in wastewater treatment plants in South Africa Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-19 Moloko Florence Morethe, Lizzy Mpenyana-Monyatsi, Adegbenro Peter Daso, Okechukwu Jonathan Okonkwo
Abstract At least 11 per-and polyfluorinated alkyl substances (PFASs) were more prevalent during the dry season, whereas only PFBA, L-PFBS, L-PFOS, and PFOA were prevalent during the wet season in 11 WWTPs. The ∑21 PFAS levels in the influent and the effluent ranged from 137 to 3327 ng/L and 265–7,699 ng/L in the dry season and 61–2,953 ng/L and 171–3,458 ng/L in the wet season, respectively. The highest
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Optimization of the integrated green–gray–blue system to deal with urban flood under multi-objective decision-making Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-19 Jiaxuan Chen, Sisi Wang, Ruobing Wu
Abstract The integrated green–gray–blue (IGGB) system is considered to be a new way of stormwater management, and a comprehensive evaluation of the green–gray–blue infrastructure layout mode under different return periods is the key to the implementation decision-making of stormwater management. In this study, a blue–green synergism evaluation model is established to optimize the layout of blue–green
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A comprehensive, open-source data model for wastewater-based epidemiology Water Sci. Technol. (IF 2.7) Pub Date : 2023-12-18 Jean-David Therrien, Mathew Thomson, Eugen-Sorin Sion, Ivan Lee, Thomas Maere, Niels Nicolaï, Douglas G. Manuel, Peter A. Vanrolleghem
Abstract The recent SARS-COV-2 pandemic has sparked the adoption of wastewater-based epidemiology (WBE) as a low-cost way to monitor the health of populations. In parallel, the pandemic has encouraged researchers to openly share their data to serve the public better and accelerate science. However, environmental surveillance data are highly dependent on context and are difficult to interpret meaningfully