The use of RO to remove emerging micropollutants following CAS/UF or MBR treatment of municipal wastewater

被引：120

作者：

Sahar, Eyal ^{[1
]}

David, Inbal ^{[2
]}

Gelman, Yelena ^{[2
]}

Chikurel, Haim ^{[2
]}

Aharoni, Avi ^{[2
]}

Messalem, Rami ^{[3
]}

Brenner, Asher ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Unit Environm Engn, IL-84105 Beer Sheva, Israel

[2] Mekorot Israel Water Works, IL-61201 Tel Aviv, Israel

[3] Ben Gurion Univ Negev, Zuckerberg Inst Water Res, IL-84990 Sede Boqer, Israel

来源：

DESALINATION | 2011年 / 273卷 / 01期

关键词：

Antibiotics; Membrane bioreactor; Municipal wastewater; Organic micropollutants; Reverse osmosis; Ultrafiltration; ENDOCRINE DISRUPTING COMPOUNDS; PHARMACEUTICALS; REJECTION; RETENTION;

D O I：

10.1016/j.desal.2010.11.004

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The removal of various organic micropollutants (OMPs), including six antibiotics (ERY, ROX, CLA, SMX, SMZ, and TMP), three pharmaceuticals (ibuprofen, salicylic acid, and diclofenac), one industrial product (BPA), and one hormone (cholesterol), was investigated in two pilot plants treating the same raw sewage of the Tel-Aviv WWTP. The effluent production by CAS-UF was 45 m(3)/h while that of MBR was 40 L/h. Each system's effluent constituted the feed for its RO, which comprised three RO steps after the CAS/UF and a semi-batch RO system after the MBR. Despite significant molecular differences between the selected OMPs, high removal rates were achieved after the RO stage (>99% for macrolides, pharmaceuticals, cholesterol, and BPA, 95% for diclofenac, and >93% removal of sulfonamides). However, low antibiotics concentrations and 28-223 ng/L residuals of ibuprofen, diclofenac, salicylic acid, cholesterol, and BPA in the MBR/RO and CAS-UF/RO permeates showed that although RO is an efficient removal solution, it cannot serve as an absolute barrier to OMPs. Therefore, additional treatment techniques should be considered to be incorporated aside the RO to ensure complete removal of such substances. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：142 / 147

页数：6

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