Membrane Water Treatment最新文献

{"title":"Preparation of graphene oxide incorporated polyamide thin-film composite membranes for PPCPs removal","authors":"Xiaoping Wang, Nan Li, Yu Zhao, Shengji Xia","doi":"10.12989/MWT.2018.9.4.211","DOIUrl":"https://doi.org/10.12989/MWT.2018.9.4.211","url":null,"abstract":"","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"13 1","pages":"211-220"},"PeriodicalIF":1.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66492773","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}

{"title":"Performance of PEG on immobilization of zero valent metallic particles on PVDF membrane for nitrate removal","authors":"Y. Chan, M. Chan, S. K. Ngien, Sho Yin Chew, Yong Teng","doi":"10.12989/MWT.2018.9.1.001","DOIUrl":"https://doi.org/10.12989/MWT.2018.9.1.001","url":null,"abstract":"The principal objective of this study is to investigate the effect of Polyethylene Glycol (PEG) crosslinking in Polyvinylidene Fluoride (PVDF) in immobilization of Fe and bimetallic Fe/Cu and Cu/Fe zero valent particles on the membrane and its efficiency on removal of nitrate in wastewater. PVDF/PEG polymer solution of three weight compositions was prepared to manipulate the viscosity of the polymer. PEG crosslinking was indirectly controlled by the viscosity of the polymer solution. In this study, PEG was used as a modifier of PVDF membrane as well as a cross-linker for the immobilization of the zero valent particles. The result demonstrates improvement in immobilization of metallic particles with the increase in crosslinking of PEG. Nitrate removal efficiency increases too.","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"9 1","pages":"1-7"},"PeriodicalIF":1.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66492063","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}

{"title":"Study of chemical coagulation conditions for a disperse red dye removal from aqueous solutions","authors":"Mohammed Tiaiba, Belkacem Merzouk, Mohammed Mazour, J. Leclerc, F. Lapicque","doi":"10.12989/MWT.2018.9.1.009","DOIUrl":"https://doi.org/10.12989/MWT.2018.9.1.009","url":null,"abstract":"","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"9 1","pages":"9"},"PeriodicalIF":1.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66492112","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}

{"title":"Polysulfone/nanocomposites mixed matrix ultrafiltration membrane for the recovery of Maillard reaction products","authors":"S. Basu, S. Mukherjee, M. Balakrishnan, M. Deepthi, R. Sailaja","doi":"10.12989/MWT.2018.9.2.105","DOIUrl":"https://doi.org/10.12989/MWT.2018.9.2.105","url":null,"abstract":"","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"9 1","pages":"105-113"},"PeriodicalIF":1.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66492665","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}

{"title":"LLE and SLM studies for Pd(II) separation using a thiodiglycolamide-based ligand","authors":"S. Kumbhaj, V. Prabhu, A. Patwardhan","doi":"10.12989/MWT.2018.9.6.463","DOIUrl":"https://doi.org/10.12989/MWT.2018.9.6.463","url":null,"abstract":"","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"9 1","pages":"463-471"},"PeriodicalIF":1.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66493123","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}

{"title":"Utilization of aerobic granulation to mitigate membrane fouling in MBRs","authors":"O. T. Iorhemen, R. Hamza, J. Tay","doi":"10.12989/MWT.2017.8.5.395","DOIUrl":"https://doi.org/10.12989/MWT.2017.8.5.395","url":null,"abstract":"Membrane bioreactor (MBR) is a compact and efficient wastewater treatment and reclamation technology; but, it is limited by membrane fouling. The control of membrane fouling significantly increases operational and maintenance costs. Bacteria and their byproducts - extracellular polymeric substances (EPS) - \u0000are major contributors to membrane fouling in MBRs. A recent attempt at fouling mitigation is the development of aerobic granular sludge membrane bioreactor (AGMBR) through the integration of a novel biotechnology - aerobic granulation - and MBR. This paper provides an overview on the development of AGMBR to mitigate membrane fouling caused by bacteria and EPS. In AGMBR, EPS are used up in granule formation; and, the rigid structure of granules provides a surface for bacteria to attach to rather than the membrane surface. Preliminary research on AGMBR using synthetic wastewater show remarkable membrane fouling reduction compared to conventional MBR, thus improved membrane filtration. Enhanced performance in AGMBR using actual municipal wastewater at pilot-scale has also been reported. Therefore, further research is needed to determine AGMBR optimal operational conditions to enhance granule stability in long-term operations and in full-scale applications.","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"8 1","pages":"395-409"},"PeriodicalIF":1.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43804241","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}

{"title":"High performance pervaporative desalination of saline waters using Na-X zeolite membrane","authors":"A. Malekpour, H. Nasiri","doi":"10.12989/mwt.2017.8.5.437","DOIUrl":"https://doi.org/10.12989/mwt.2017.8.5.437","url":null,"abstract":"A high quality Na-X zeolite membrane was synthesized on a seeded a-alumina disc by the secondary growth method. Structural characterization was done by X-ray spectroscopy, FT-IR spectroscopy, SEM and AFM imaging. The performance evaluation of the membrane was firstly tested in separation of glucose/water solutions by pervaporation process. There was obtained a separation factor 182.7+-8.8, while the flux through the membrane was 3.6+-0.3 kg m-2 h-1. The zeolite membrane was then used for desalination of aqueous solutions consisting of Na+, Ca2+, Cs+ and Sr2+ because of the importance of these ions in water and wastewater treatments. The effects of some parameters such as temperature and solution concentration on the desalination process were studied for investigating of diffusion/adsorption mechanism in membrane separation. Finally, high water fluxes ranged from 2 up to 9 kg m-2 h-1 were obtained and the rejection factors were resulted more than 95% for Na+ and Ca2+ and near to 99% for Cs+ and Sr2+. Based on the results, fluxes were significantly improved due to convenient passage of water molecules from large pores of NaX, while the fouling was declining dramatically. Based on the results, NaX zeolite can efficiently use for the removal of different cations from wastewaters.","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"8 1","pages":"437-448"},"PeriodicalIF":1.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46174767","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}

{"title":"Modified membrane with antibacterial properties","authors":"P. Aryanti, M. Sianipar, M. Zunita, I. Wenten","doi":"10.12989/MWT.2017.8.5.463","DOIUrl":"https://doi.org/10.12989/MWT.2017.8.5.463","url":null,"abstract":"Bacteria have been considered as a major foulant that initiates the formation of biofilm on the polymeric membrane surface. Some polymeric membranes are naturally antibacterial and have low fouling properties, however, numerous efforts have been devoted to improve their antibacterial performance. These modifications are mostly carried out through blending the membrane with an antibacterial agent or introducing the antibacterial agent on the membrane surface by chemical grafting. Currently, a significant number of researches have reported nanocomposite membrane as a new approach to fabricate an excellent antibacterial membrane. The antibacterial nanoparticles are dispersed homogenously in membrane structure by blending method or coating onto the membrane surface. Aim of the modifications is to prevent the initial attachment of bacteria to membrane surface and kill bacteria when attached on the membrane surface. In this paper, several studies on antibacterial modified membranes, particularly for water treatment, will be reviewed comprehensively. Special attention will be given on polymeric membrane modifications by introducing antibacterial agents through different methods, such as blending, grafting, and coating.","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"8 1","pages":"463-481"},"PeriodicalIF":1.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45069883","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}

{"title":"Study on the heat and mass transfer in ultrasonic assisting vacuum membrane distillation","authors":"Hao Guo, Changsheng Peng, Weifang Ma, H. Yuan, Ke Yang","doi":"10.12989/MWT.2017.8.3.293","DOIUrl":"https://doi.org/10.12989/MWT.2017.8.3.293","url":null,"abstract":". An ultrasonic assisting vacuum membrane distillation (VMD) system was designed to promote the heat and mass transfer in membrane distillation (MD) process. Both the effects of operating conditions and ultrasonic parameters to permeation flux in this process were investigated; the heat and mass transfer mechanism was also being discussed in this paper. The results showed that the performance of VMD process was improved significantly by ultrasonic assisting. The permeation flux was boosted at a certain feed solution temperature, pressure at permeate side and feed solution velocity whether or not to PP and PTFE. The results also indicated that ultrasonic power and frequency also was the key factor affecting the mass and transfer efficiencies. The feed side transfer coefficient ( K f ), corresponding to ultrasonic power ( K f =4.406−0.026× P +7.824×10 -5 × P 2 ) and ultrasonic frequency ( K f =0.941+0.598× f −0.012× f 2 +6.283×10 -5 f 3 ), was obtained and employed in the modeling of ultrasonic assisting VMD process. The modeling results showed that the calculated value of K f aligned with experimental results well. Both variations of temperature polarization coefficient ( TPC ) and concentration polarization coefficient ( CPC ) were studied based on the obtained data. The results showed that both TPC and CPC were improved obviously by the ultrasonic parameters.","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"8 1","pages":"293-310"},"PeriodicalIF":1.0,"publicationDate":"2017-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47480830","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}

{"title":"Enhanced performance of thin-film nanocomposite RO/NWF membrane by adding ZnO nanospheres in aqueous phase during interfacial polymerization process","authors":"Hongbin Li, Wenying Shi, Yuheng Su, Hongxiang Hou, Qi-yun Du, Haixia Zhang, X. Qin","doi":"10.12989/MWT.2017.8.3.225","DOIUrl":"https://doi.org/10.12989/MWT.2017.8.3.225","url":null,"abstract":") Abstract. A novel thin-film nanocomposite (TFN) reverse osmosis (RO)/non-woven fabric (NWF) membrane was prepared by adding zinc oxide (ZnO) nanospheres (30±10 nm) during the interfacial polymerization process of m -phenylenediamine (MPD) and trimesoyl chloride (TMC) on self-made polysulfone (PSF) membrane/polyester (PET) non-woven fabric support. The improved performance of TFN RO membrane was verified in terms of water contact angle (WCA), water flux, salt rejection, antifouling properties and chlorine resistance. The results showed that the WCA value of TFN RO surface had a continuous decrease with the increasing of ZnO content in MPD aqueous solution. The water flux of composite TFN RO membranes acquired a remarkable increase with a stable high solute rejection (94.5 %) in 1 g . L -1 NaCl aqueous solution under the optimized addition amount of ZnO (1 wt%). The continuous testing of membrane separation performance after the immersion in sodium hypochlorite solution indicated that the introduction of ZnO nanospheres also dramatically enhanced the antifouling properties and the chlorine resistance of composite RO form of nanoparticles to improve permeate water flux and antifouling properties of composite nanofiltration membrane (Cai et al . 2015, Bai et al . 2013, Rajaeian et al . 2013, Peyravi et al . 2014). Rajaeian et al . (2013) prepared thin-film nanocomposite nanofiltration membrane via interfacial incorporation of aminosilanized TiO 2 nanoparticles. Functionalized TiO 2 nanoparticles were incorporated into trimesoyl chloride (TMC) organic phase. The functionalized TiO 2 nanoparticles improved membrane salt rejection to 54% as well as water flux to 12.3 l/m 2 h. Bai et al . (2013) incorporated TiO 2 nanoparticles in aqueous phase and prepared composite NF membrane using TMC in n-hexane as organic phase. At the optimal preparation conditions, the NF membrane showed high flux, high dye rejection and low salt rejection, which are suitable to the process of purifying raw dye.","PeriodicalId":18416,"journal":{"name":"Membrane Water Treatment","volume":"8 1","pages":"225-244"},"PeriodicalIF":1.0,"publicationDate":"2017-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66492153","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}