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231225s2022 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2021.614
|2 doi
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|a pubmed24n1119.xml
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|a (DE-627)NLM335855261
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|a (NLM)35050880
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Jia, Xiaolin
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Membrane cleaning in membrane distillation of reverse osmosis concentrate generated in landfill leachate treatment
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 24.01.2022
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|a Date Revised 24.01.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a As a thermally induced membrane separation process, membrane distillation (MD) has drawn more and more attention to the advantages of treating hypersaline wastewaters, especially the concentrate from the reverse osmosis (RO) process. One of the major obstacles in widespread MD application is the membrane fouling. We investigated the feasibility of direct contact membrane distillation (DCMD) for landfill leachate reverse osmosis concentrate (LFLRO) brine treatment and systematically assessed the efficiency of chemical cleaning for DCMD after processing LFLRO brine. The results showed that 80% water recovery rate was achieved when processing the LFLRO brine by DCMD, but membrane fouling occurred during the DCMD process, and manifested as the decreasing of permeate flux and the increasing of permeate conductivity. Analysis revealed that the serious flux reduction was primarily caused by the fouling layer, which consisted of organic matter and inorganic salts. Five cleaning methods were investigated for membrane cleaning, including hydrogen chloride (HCl)-sodium hydroxide (NaOH), ethylene diamine tetraacetic acid (EDTA)-NaOH, citric acid, sodium hypochlorite (NaClO) and sodium dodecyl sulphate (SDS) cleaning. Among the chemical cleaning methods investigated, the 3 wt.% SDS cleaning showed the best efficiency at recovering the performance of fouled membranes
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|a Journal Article
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|a Membranes, Artificial
|2 NLM
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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| 700 |
1 |
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|a Li, Kuiling
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Baoqiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, ZhiChao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hou, Deyin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Jun
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 85(2022), 1 vom: 20. Jan., Seite 244-256
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
1 |
8 |
|g volume:85
|g year:2022
|g number:1
|g day:20
|g month:01
|g pages:244-256
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| 856 |
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|u http://dx.doi.org/10.2166/wst.2021.614
|3 Volltext
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|d 85
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|h 244-256
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