Innovative sponge-based moving bed-osmotic membrane bioreactor hybrid system using a new class of draw solution for municipal wastewater treatment

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題名:	Innovative sponge-based moving bed-osmotic membrane bioreactor hybrid system using a new class of draw solution for municipal wastewater treatment
作者:	林伯勳;Nguyen, Nguyen Cong;Chen, Shiao-Shing;Nguyen, Hau Thi;Ray, Saikat Sinha;Ngo, Huu Hao;Guo, Wenshan;Lin, Po-Hsun
貢獻者:	工學院環境工程研究所
關鍵詞:	activated sludge;biofilm;Bioreactors;Carrier;denitrification;Draw solution;Flux;Forward osmosis;fouling;Hybrid systems;Joining;magnesium chloride;Magnesium Chloride - chemistry;membrane bioreactors;Membranes;Membranes, Artificial;Moving bed;municipal wastewater;nitrification;nutrients;Osmotic membrane bioreactor;Polyethylene Glycols - chemistry;Sponge;Sponges;Surface-Active Agents - chemistry;surfactants;Triton;Waste Disposal, Fluid - methods;Waste Water - analysis;Wastewater treatment;Water Pollutants, Chemical - chemistry
日期:	2016-03-15
上傳時間:	2026-04-23 15:04:17 (UTC+8)
出版者:	Elsevier Ltd.;England: Elsevier Ltd
摘要:	摘要： For the first time, an innovative concept of combining sponge-based moving bed (SMB) and an osmotic membrane bioreactor (OsMBR), known as the SMB-OsMBR hybrid system, were investigated using Triton X-114 surfactant coupled with MgCl2 salt as the draw solution. Compared to traditional activated sludge OsMBR, the SMB-OsMBR system was able to remove more nutrients due to the thick-biofilm layer on sponge carriers. Subsequently less membrane fouling was observed during the wastewater treatment process. A water flux of 11.38 L/(m2 h) and a negligible reverse salt flux were documented when deionized water served as the feed solution and a mixture of 1.5 M MgCl2 and 1.5 mM Triton X-114 was used as the draw solution. The SMB-OsMBR hybrid system indicated that a stable water flux of 10.5 L/(m2 h) and low salt accumulation were achieved in a 90-day operation. Moreover, the nutrient removal efficiency of the proposed system was close to 100%, confirming the effectiveness of simultaneous nitrification and denitrification in the biofilm layer on sponge carriers. The overall performance of the SMB-OsMBR hybrid system using MgCl2 coupled with Triton X-114 as the draw solution demonstrates its potential application in wastewater treatment. [Display omitted] •A mixture of MgCl2 and Triton X-114 can serve as a novel draw solution.•The reverse flux of novel draw solution was 4.5 times lower than that of only MgCl2.•Low salt accumulation was achieved during 90-day SMB-OsMBR operation.•Approximately 100% NH4–N and 98% PO4–P were removed by the SMB-OsMBR hybrid system.•Moving free sponge carriers in the bioreactor continuously cleaned the FO membrane. 其他題名： Water Res 出版者： England: Elsevier Ltd 出版日期： 2016-03-15 出處： Water research (Oxford), 2016-03, Vol.91, p.305-313 版權： 2016 Elsevier Ltd 版權： Copyright © 2016 Elsevier Ltd. All rights reserved. 識別號： ISSN: 0043-1354 識別號： EISSN: 1879-2448 識別號： DOI: 10.1016/j.watres.2016.01.024 識別號： PMID: 26803266
顯示於類別:	[環境工程研究所 ] 期刊論文

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