Membrane Water Treatment最新文献_第7页

Reuse potential of spent RO membrane for NF and UF process 废反渗透膜在NF和UF工艺中的再利用潜力

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.5.323

Z. Ng, C. Chong, Muhammad Hamdan Sunarya, W. Lau, Y. Liang, See Yin Fong, A. Ismail

引用次数: 5

Electrodialysis of metal plating wastewater with neutralization pretreatment: Separation efficiency and organic removal 中和预处理电渗析金属电镀废水:分离效率及有机物去除率

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.3.179

Yong-Min Park, Suyoung Choi, K. Park, J. Kweon

引用次数: 2

Aqueous U(VI) removal by green rust and vivianite at phosphate-rich environment 富磷环境下绿锈和绿辉石对水中U(VI)的去除

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.3.207

Y. Sihn, I. Yoon

引用次数: 5

Study of nitrate concentration in Najaf Abad aquifer using GIS 基于GIS的纳贾巴德含水层硝酸盐浓度研究

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.2.167

J. Tabatabaei, L. Gorji

引用次数: 0

Influence of counter anions on metal separation and water transport in electrodialysis treating plating wastewater 反阴离子对电渗析处理电镀废水中金属分离和水迁移的影响

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.3.201

E. Oh, J. Kim, Junhee Ryu, K. Min, Hyun-Gon Shin, K. Park

引用次数: 1

The application of DGTs for assessing the effectiveness of in situ management of Hg and heavy metal contaminated sediment DGTs在评价汞和重金属污染沉积物原位治理效果中的应用

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.1.011

Mark Xavier Bailon, Min-oh Park, Younggyun Choi, D. Reible, Yongseok Hong

{"title":"The application of DGTs for assessing the effectiveness of in situ management of Hg and heavy metal contaminated sediment","authors":"Mark Xavier Bailon, Min-oh Park, Younggyun Choi, D. Reible, Yongseok Hong","doi":"10.12989/MWT.2020.11.1.011","DOIUrl":"https://doi.org/10.12989/MWT.2020.11.1.011","url":null,"abstract":"The effectiveness of in situ sediment capping as a technique for heavy metal risk mitigation in Hyeongsan River estuary, South Korea was studied. Sites in the estuary were found previously to show moderate to high levels of contamination of mercury, methylmercury and other heavy metals. A 400 m x 50 m section of the river was selected for a thin layer capping demonstration, where the total area was divided into 4 sections capped with different combinations of capping materials (zeolite, AC/zeolite, AC/sand, zeolite/sand). Pore water concentrations in the different sites were studied using diffusive gradient in thin film (DGT) probes. All capping amendments showed reduction in the pore water concentration of the different heavy metals with top 5 cm showing %reduction greater than 90% for some heavy metals. The relative maxima for the different metals were found to be translated to lower depths with addition of the caps. For two-layered cap with AC, order of placement should be considered since AC can easily be displaced due to its relatively low density. Investigation of methylmercury (MeHg) in the site showed that MeHg and %MeHg in pore water corresponds well with maxima for sulfide, Fe and Mn suggesting mercury methylation as probably coupled with sulfate, Fe and Mn reduction in sediments. Our results showed that thin-layer capping of active sorbents AC and zeolite, in combination with passive sand caps, are potential remediation strategy for sediments contaminated with heavy metals.","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"11 1","pages":"11-23"},"PeriodicalIF":1.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66493483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Developing a composite vertical flow constructed wetlands for rainwater treatment 雨水处理复合垂直流人工湿地的研制

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.2.087

Sanjrani Manzoor Ahmed, Boxun Zhou, Heng Zhao, Y. Zheng, Yue Wang, S. Xia

引用次数: 3

Removal of Pb(II) from wastewater by biosorptionusing powdered waste sludge 粉末状废污泥生物吸附去除废水中的铅(II)

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.1.041

Hana Jang, N. Park, Hyokwan Bae

{"title":"Removal of Pb(II) from wastewater by biosorptionusing powdered waste sludge","authors":"Hana Jang, N. Park, Hyokwan Bae","doi":"10.12989/MWT.2020.11.1.041","DOIUrl":"https://doi.org/10.12989/MWT.2020.11.1.041","url":null,"abstract":"Lead is a highly toxic heavy metal that causes serious health problems. Nonetheless, it is increasingly being used for industrial applications and is often discharged into the environment without adequate purification. In this study, Pb(II) was removed by powdered waste sludge (PWS) based on the biosorption mechanism. Different PWSs were collected from a submerged moving media intermittent aeration reactor (SMMIAR) and modified Ludzack-Ettinger (MLE) processes. The contents of extracellular polymeric substances were similar, but the surface area of MLE-PWS (2.07 m2/g) was higher than that of SMMIAR-PWS (0.82 m2/g); this is expected to be the main parameter determining Pb(II) biosorption capacity. The Bacillaceae family was dominant in both PWSs and may serve as the major responsible bacterial group for Pb(II) biosorption. Pb(II) biosorption using PWS was evaluated for reaction time, salinity effect, and isotherm equilibrium. For all experiments, MLE-PWS showed higher removal efficiency. At a fixed initial Pb(II) concentration of 20 mg/L and a reaction time of 180 minutes, the biosorption capacities (qe) for SMMIAR- and MLE-PWSs were 2.86 and 3.07 mg/g, respectively. Pb(II) biosorption using PWS was rapid; over 80% of the maximum biosorption capacity was achieved within 10 minutes. Interestingly, MLE-PWS showed enhanced Pb(II) biosorption with salinity values of up to 30 g NaCl/L. Linear regression of the Freundlich isotherm revealed high regression coefficients (R2 > 0.968). The fundamental Pb(II) biosorption capacity, represented by the KF value, was consistently higher for MLE-PWS than SMMIAR-PWS.","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"11 1","pages":"41"},"PeriodicalIF":1.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66493943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of Combined Sewer Overflows on river 合流污水溢流对河流的影响

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.1.049

H. Bae

引用次数: 2

Preparation, characterization of activated carbon fiber from luffa and its application in CVFCW for rainwater treatment 丝瓜活性炭纤维的制备、表征及其在CVFCW处理雨水中的应用

IF 1 4区工程技术

Membrane Water Treatment Pub Date : 2020-01-01 DOI: 10.12989/MWT.2020.11.2.151

Sanjrani Manzoor Ahmed, Boxun Zhou, Heng Zhao, Y. Zheng, Yue Wang, S. Xia

引用次数: 0