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20231224142732.0 |
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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2015.1019930
|2 doi
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|a pubmed24n0821.xml
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|a (DE-627)NLM246285249
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|a (NLM)25686627
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Li, Lihua
|e verfasserin
|4 aut
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| 245 |
1 |
4 |
|a The performance of a biological aerated filter loaded with a novel non-sintered fly-ash ceramsite as pretreatment for dual membrane processes
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 10.09.2015
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|a Date Revised 16.11.2017
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a This work focused on wastewater reclamation of secondary treated ethylene chemical plant effluent, which contained high conductivity and high organic concentration. To reduce the cost and improve operation stability, a biological aerated filter-ultrafiltration-reverse osmosis (BAF-UF-RO) process was proposed. The feasibility and effectiveness of BAF loaded with a novel non-sintered fly-ash ceramsite (NSFC) as a pretreatment method of a dual membrane system were investigated in detail. The results showed that the CODCr, turbidity, NH3-N and the silt density index (SDI) in the effluent from the BAF were reduced to 24.2 mg/L, 12.17 NTU, 0.42 mg/L and 7.52, respectively, and most of the organic compounds were biodegraded. The BAF-UF-RO process was stable with a recovery rate of 75%, and the desalination rate was up to about 97.5%. Compared with the UF-RO process, the operating pressure and backwash frequency decreased from 1.12-1.26 Mpa and 3 times/d to 0.94-0.98 Mpa and 2 times/d, respectively. After continuous operation for four months, there appeared to be no need for chemical cleaning of the RO membrane. Moreover, the analysis results of X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy proved that there was only slight membrane fouling, which was mainly colloidal blocking caused by refractory organic compound
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a biological aerated filter
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|a membrane fouling
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|a non-sintered fly-ash ceramsite
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|a reverse osmosis
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|a ultrafiltration
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| 650 |
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|a Coal Ash
|2 NLM
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| 650 |
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|a Membranes, Artificial
|2 NLM
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| 650 |
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|a Soil
|2 NLM
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| 650 |
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7 |
|a Water Pollutants, Chemical
|2 NLM
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| 700 |
1 |
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|a Hu, Chaowu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dai, Xiulan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jin, Wenjie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Cheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Fang
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g 36(2015), 13-16 vom: 13. Juli, Seite 2024-34
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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| 773 |
1 |
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|g volume:36
|g year:2015
|g number:13-16
|g day:13
|g month:07
|g pages:2024-34
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|u http://dx.doi.org/10.1080/09593330.2015.1019930
|3 Volltext
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|a AR
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|d 36
|j 2015
|e 13-16
|b 13
|c 07
|h 2024-34
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