Superior Antifouling Capability of Hydrogel Forward Osmosis

Jan 3, 2018 - Journal of Chemical Documentation · - Journal of Chemical Information and Computer Sciences · Journal of Chemical Theory and Computation...
1 downloads 11 Views 2MB Size
Subscriber access provided by Gothenburg University Library

Article

Superior antifouling capability of hydrogel forward osmosis membrane for treating wastewaters with high concentration of organic foulants Detao Qin, Zhaoyang Liu, Zhi Liu, Hongwei Bai, and Darren Delai Sun Environ. Sci. Technol., Just Accepted Manuscript • DOI: 10.1021/acs.est.7b04838 • Publication Date (Web): 03 Jan 2018 Downloaded from http://pubs.acs.org on January 4, 2018

Just Accepted “Just Accepted” manuscripts have been peer-reviewed and accepted for publication. They are posted online prior to technical editing, formatting for publication and author proofing. The American Chemical Society provides “Just Accepted” as a free service to the research community to expedite the dissemination of scientific material as soon as possible after acceptance. “Just Accepted” manuscripts appear in full in PDF format accompanied by an HTML abstract. “Just Accepted” manuscripts have been fully peer reviewed, but should not be considered the official version of record. They are accessible to all readers and citable by the Digital Object Identifier (DOI®). “Just Accepted” is an optional service offered to authors. Therefore, the “Just Accepted” Web site may not include all articles that will be published in the journal. After a manuscript is technically edited and formatted, it will be removed from the “Just Accepted” Web site and published as an ASAP article. Note that technical editing may introduce minor changes to the manuscript text and/or graphics which could affect content, and all legal disclaimers and ethical guidelines that apply to the journal pertain. ACS cannot be held responsible for errors or consequences arising from the use of information contained in these “Just Accepted” manuscripts.

Environmental Science & Technology is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Published by American Chemical Society. Copyright © American Chemical Society. However, no copyright claim is made to original U.S. Government works, or works produced by employees of any Commonwealth realm Crown government in the course of their duties.

Page 1 of 25

Environmental Science & Technology

1 2 3 4

Superior antifouling capability of hydrogel forward osmosis membrane for treating wastewaters with high concentration of organic foulants †



Detao Qin, Zhaoyang Liu,*, Zhi Liu,

5



§

Hongwei Bai and Darren Delai Sun

*,⊥

6 7 8 9



Energy Research Institute @ NTU, Interdisciplinary Graduate School, Nanyang

Technological University, 639798, Singapore ‡

Qatar Environment and Energy Research Institute, Hamad bin Khalifa University, Qatar

10

Foundation, PO Box 5825, Doha, Qatar. E-mail: [email protected]; Fax: +974 4454 0547;

11

Tel: +974 4454 5621

12 13 14 15 16



National Engineering Laboratory for Modern Silk, College of Textile and Clothing

Engineering, Soochow University, 199 Ren-Ai Road, Suzhou, China §

Energy Research Institute @ NTU, Nanyang Technological University, 639798, Singapore



School of Civil and Environmental Engineering, Nanyang Technological University,

639798, Singapore. E-mail: [email protected]; Fax: +65 6791 0676; Tel: +65 6790 6273

17 18

KEYWORDS: forward osmosis, wastewater treatment, highly antifouling membrane,

19

hydrogel selective layer, high hydrophilicity, smooth surface, chemical crosslinking

20

1 ACS Paragon Plus Environment

Environmental Science & Technology

21

ABSTRACT

22

Wastewaters with high concentrations of organic pollutants pose a great challenge for

23

membrane filtration due to their severe fouling propensity. In this study, a hydrogel forward

24

osmosis (FO) membrane is explored for treating wastewaters of high concentration organic

25

pollutants. This FO membrane has an ultrathin hydrogel selective layer, which is highly

26

hydrophilic (water contact angle: as low as 18°) and smooth (surface roughness: