Water Quality Research Journal最新文献_第2页

Potential of Pseudomonas yamanorum for the valorization of municipal biosolids 山氏假单胞菌在城市生物固体中增值的潜力

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2023-05-12 DOI: 10.2166/wqrj.2023.003

Jordan Lussier, L. Lonappan, H. Cabana

{"title":"Potential of Pseudomonas yamanorum for the valorization of municipal biosolids","authors":"Jordan Lussier, L. Lonappan, H. Cabana","doi":"10.2166/wqrj.2023.003","DOIUrl":"https://doi.org/10.2166/wqrj.2023.003","url":null,"abstract":"\u0000 It is generally accepted that some trace organic contaminants (TrOCs) pass through the wastewater treatment process without being properly treated and find their way into waterbodies. These molecules can also be concentrated within the biosolids (BS) through adsorption. The presence of TrOCs in BS, which are then commonly used as soil amendments in agriculture, may affect plant growth and viability. The potential risks posed by TrOCs are being usually ignored because they are present in low concentrations and mostly have relatively short half-lives. However, the continuous addition of these substances in water sources and on farmlands makes them pseudo-persistent. To reduce the concentrations of selected TrOCs from these BS, Pseudomonas yamanorum LBUM636 (PY) was tested with and without a commercial bacterial blend of Bacillus spp. (BC). About 60% removal of atrazine was achieved using PY-amended BS. Bioslurries inoculated with PY had relatively high laccase activity at about 2,200 U/L. Laccase activity was seven times higher in samples where BC was also present, which suggests a synergistic effect between BC and PY. Concentrations of phenazine-1-carboxylic acid, an antibiotic with a biopesticide effect, were also relatively important in PY-inoculated bioslurries.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49061984","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

Tannery effluent treatment and its environmental impact: a review of current practices and emerging technologies 制革厂废水处理及其对环境的影响:对当前做法和新兴技术的审查

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2023-05-09 DOI: 10.2166/wqrj.2023.002

A. Bhardwaj, Sanjeev Kumar, Davinder Singh

{"title":"Tannery effluent treatment and its environmental impact: a review of current practices and emerging technologies","authors":"A. Bhardwaj, Sanjeev Kumar, Davinder Singh","doi":"10.2166/wqrj.2023.002","DOIUrl":"https://doi.org/10.2166/wqrj.2023.002","url":null,"abstract":"\u0000 \u0000 The tannery industry plays a significant role in the economy but poses a severe environmental threat due to its high water and chemical usage, leading to wastewater generation with a high concentration of pollutants. This wastewater contains a range of contaminants created throughout the leather manufacturing process, making effluent disposal a significant challenge for the industry. The tanning process also contributes significantly to the pH, biological oxygen demand (BOD), total suspended solids (TSS), chemical oxygen demand (COD), total dissolved solids (TDS), and concentrations of T Cr, Cr(III), Cr(VI), Cl−, sulfate, sulfide, and inorganic constituents in the wastewater. This review paper provides a concise overview of the origins and characteristics of post-tanning effluent, different treatment techniques, and applications of treated wastewater. Comparing the prominent tannery effluent technologies, adsorption and advanced oxidation processes (AOPs) effectively improved wastewater biodegradability before biological treatment. AOPs, enzymatic, adsorption, and coagulation treatment effectively upgraded the effluent to desired levels for disposal. Additionally, membrane separation processes have shown high pertinency in cases where the treated effluent is intended for reuse, whereas hybrid technologies can be the answer for better and cost-effective results.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43518795","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: 1

Investigation of a basic nitrification–denitrification biofiltration system for primary wastewater treatment 用于污水一级处理的基本硝化-反硝化生物过滤系统研究

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2023-05-03 DOI: 10.2166/wqrj.2023.103

W. Hassen, A. Ben Rejab, B. Hassen, N. Jdidi, A. Hassen

{"title":"Investigation of a basic nitrification–denitrification biofiltration system for primary wastewater treatment","authors":"W. Hassen, A. Ben Rejab, B. Hassen, N. Jdidi, A. Hassen","doi":"10.2166/wqrj.2023.103","DOIUrl":"https://doi.org/10.2166/wqrj.2023.103","url":null,"abstract":"\u0000 \u0000 The study aimed to eliminate the nitrogen and its main residual forms from municipal wastewater by using a biofilter system adapted for a small community. The biological nitrification/denitrification system used involved two successive PVC columns; a first gravel column (C1) loaded with primary wastewater followed by a second sandy column (C2). A complex biofilm development on the gravel and sand materials has been confirmed by scanning electron microscope. The efficiency of chemical oxygen demand (COD), BOD5, TSS, and NH4+-N removal from primary wastewater reached 75.3, 88.4, 83.5, and 88.1%, respectively, at the exit of the sandy column (C2). Inoculation with activated sludge as an external carbon source allowed an improvement in the nitrate removal, from 80 to 28 mg/l N-NO3. However, sludge inoculation showed non-significant fecal coliforms and Streptococcus contamination, and the biofilter appeared as effective for total nitrogen removal and a bacterial abatement of over 3.2 U-log10. The average bacterial removal seemed directly related to the applied load of about 50 cm/day and a tertiary disinfection treatment, such as UV-C254 irradiation, is needed as a preventive step to ensure the removal of pathogens.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45991580","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

Prediction of biochemical oxygen demand with genetic algorithm-based support vector regression 基于遗传算法的支持向量回归预测生化需氧量

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2023-04-24 DOI: 10.2166/wqrj.2023.015

Y. Liu, Zhiyuan Chen

{"title":"Prediction of biochemical oxygen demand with genetic algorithm-based support vector regression","authors":"Y. Liu, Zhiyuan Chen","doi":"10.2166/wqrj.2023.015","DOIUrl":"https://doi.org/10.2166/wqrj.2023.015","url":null,"abstract":"\u0000 Five-day biochemical oxygen demand (BOD5) is a vital wastewater contamination strength indicator. The process of measuring BOD5 is to measure the mass of molecular oxygen consumed in 1 L of water at 20 °C over 5-day incubation period. It is a time-consuming process and often too late for water management agencies to make a timely reaction if the result of measurement shows a water body is seriously polluted. Biosensors can simplify the process of BOD5 measurement; however, the measurement results often deviate significantly from the measured BOD5 values. The main aim of this research is to identify a machine learning model, which could predict BOD5 value from historical data and make it easier to detect water pollution in advance and timely adopt treatment measures. Three machine learning techniques, linear regression, support vector regression (SVR) and multi-layer perceptron (MLP) and two optimization processes have been studied in this research. Four main steps, preprocessing (one-time only), model training, model evaluation (testing) and analysis have been implemented in the experiments. With three feature selection strategies, the results of the experiment showed that SVR with genetic algorithm (GA) optimizer achieved the best performance with R2 of 0.694 and the lowest MAE of 0.109.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43726316","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

Decision support system for selective withdrawal in water supply reservoirs: an approach based on thermal stratification 供水水库选择性调水决策支持系统：一种基于热分层的方法

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2023-04-24 DOI: 10.2166/wqrj.2023.030

E. Soyer, Halûk Bayram, Nalan Canıgeniş, Onur Eren

引用次数: 0

Pesticide removal by the bioaugmentation process in secondary treated wastewater 生物强化法去除二次处理废水中的农药

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2023-03-28 DOI: 10.2166/wqrj.2023.001

R. Ammeri, S. Kloula, G. Simeone, I. Mehri, Wafa Hassan, A. Hassen

引用次数: 1

Measuring nitrate concentration in surface waters with a microfluidic device facilitated by a miniaturized capacitive deionization cell 用微型电容去离子池辅助的微流体装置测量地表水中的硝酸盐浓度

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2023-02-08 DOI: 10.2166/wqrj.2023.010

Hang Zhang, R. Zhao, Ying Yang, Yinyin Liu, Linchen Han

引用次数: 0

The potential use of natural coagulants for microalgae harvesting: a review 天然混凝剂在微藻收获中的潜在用途：综述

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2022-12-23 DOI: 10.2166/wqrj.2022.026

S. A. Abu Amr, M. Abujazar, M. Alazaiza, A. Albahnasawi, M. Bashir, D. Nassani

引用次数: 3

Different tolerance of three typical riparian plants (Cynodon dactylon, Alternanthera philoxeroides, and Acorus calamus) to different depths of waterlogging caused variations in soil nutrient release and microbial diversity 3种典型滨水植物(Cynodon dactylon、Alternanthera philoxeroides和Acorus菖蒲)对不同深度涝渍的耐受性不同，导致土壤养分释放和微生物多样性的变化

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2022-11-25 DOI: 10.2166/wqrj.2022.125

Zhenlin Wang, Zhengkui Ge, Ying Wang, Qi Wang, Xiaoxiao Han, Ming Li

{"title":"Different tolerance of three typical riparian plants (Cynodon dactylon, Alternanthera philoxeroides, and Acorus calamus) to different depths of waterlogging caused variations in soil nutrient release and microbial diversity","authors":"Zhenlin Wang, Zhengkui Ge, Ying Wang, Qi Wang, Xiaoxiao Han, Ming Li","doi":"10.2166/wqrj.2022.125","DOIUrl":"https://doi.org/10.2166/wqrj.2022.125","url":null,"abstract":"\u0000 Water-level changes in the water-level fluctuating zone (WLFZ) promoted soil and plants to release nutrients into the water, threatening the water health in the reservoir. Plant restoration in the WLFZ is also an important way to reduce the nutrient release in order to select plants that can effectively reduce the release of soil nutrients under changing water levels. This study conducted a flooding experiment to reveal the difference in the change in soil physico-chemical properties and microbial communities planted with various plants under different water-level conditions. The flooding experiment began at the end of September 2020 and was planted with three dominant plants common to reservoirs, namely Cynodon dactylon, Alternanthera philoxeroides, and Acorus calamus. Our study found the three common dominant plants along the reservoir, and C. dactylon had a good adsorption capacity for nitrogen and phosphorus when it was flooded with shallow water, decreasing soil nutrients during the drying period. After a wetting–drying cycle, there was an obvious and significant (p < 0.05) divergence among soil microbial community structures between N0 and D1, D2, and D3, respectively. This study could provide sufficient reference information for plant selection and the assessment of nutrient release of WLFZ in restoration work.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46446024","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

Estimating gabion weir oxygen transfer with data mining 用数据挖掘法估算石笼堰的氧气输送

IF 2.3 4区环境科学与生态学

Water Quality Research Journal Pub Date : 2022-11-24 DOI: 10.2166/wqrj.2022.023

N. K. Tiwari, Kumari Luxmi, S. Ranjan

{"title":"Estimating gabion weir oxygen transfer with data mining","authors":"N. K. Tiwari, Kumari Luxmi, S. Ranjan","doi":"10.2166/wqrj.2022.023","DOIUrl":"https://doi.org/10.2166/wqrj.2022.023","url":null,"abstract":"\u0000 Conventionally, impermeable weirs are employed for retaining, measuring, and regulating the water in the river. Still now, alternative devices are more predominantly in vogue, which are made of locally available materials called gabion weirs chosen because the latter can better fulfill ecological needs due to their porous nature. Dissolved oxygen (D.O.) is one of the significant determinants for assessing the character of water bodies. This study mainly focuses on improving the estimation of the gabion oxygen transfer efficiency (OTE20) to enhance its efficacy. The backpropagation neural network (BPNN), adaptive neuro-fuzzy inference system (ANFIS), and multi-variant linear and nonlinear regression (MVLR and MVNLR) are developed with experimental data to estimate the OTE20 and their results are compared. In terms of statistical metrics, the BPNN has proved to be the best-performing model. At the same time, triangular membership function (mf)-based ANFIS is the second-best performing model. Nevertheless, other applied mf-based ANFIS, MVLR, and MVNLR are giving a comparable performance. Input variable discharge per unit width (q) is the most crucial parameter in the computation of the OTE20, followed by the gabion mean size (d50). Major challenges are found in computing porosity of the gabion materials and optimal parameters of proposed data mining techniques.","PeriodicalId":23720,"journal":{"name":"Water Quality Research Journal","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45678293","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: 2