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首页> 外文会议>2011 Membrane technology conference amp; exposition. >Comparison of UV, UV/Peroxide, Ozone, and Ozone/Peroxide for Organic Fouling Control in RO Membrane Applications
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Comparison of UV, UV/Peroxide, Ozone, and Ozone/Peroxide for Organic Fouling Control in RO Membrane Applications

机译：用于反渗透膜应用中有机污垢控制的UV，UV /过氧化物，臭氧和臭氧/过氧化物的比较

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摘要

This study is part of a Tailored Collaboration funded by WateReuse Foundation commissioned in 2008 (WRF 08-08) to study the impact of oxidation processes on organic fouling of reverse osmosis (RO) membrane treatment systems for water reuse. This Project Team has investigated the use of four oxidation strategies prior to RO membrane treatment for organic fouling minimization: UV, UV/peroxide, ozone, and ozone/peroxide. As expected, UV alone (even at a high fluence of 4000 mJ/cm~2) has minimal impact on the quality of the organic matter in the feed water and little to no impact on fouling control in flat sheet tests. Both ozone and ozone/peroxide have been shown to impact organic matter, minimize flux decline, and significantly improve membrane performance in both flat sheet and pilot-scale studies using effluent from a membrane bioreactor and a MF/UF system at two different wastewater treatment plants. Ozone doses as low as 1.5 mg/L have been demonstrated to improve performance relative to control (non-oxidized) waters. At the time of writing this abstract, UV/peroxide testing was underway and pilot scale data are expected in early 2011. Thus, this presentation will compare the four pre-oxidation strategies at bench-scale (flat sheet testing) and pilot-scale with respect to changes in specific flux and changes in organic matter as observed through techniques such as 3-D fluorescence, PRAM, and SEC-UV/Fluorescence. Additional data will be presented from membrane autopsies and surface characterizations of the fouled membranes.
机译：这项研究是WateReuse基金会于2008年委托进行的量身定制合作的一部分（WRF 08-08），研究氧化工艺对反渗透（RO）膜处理系统对水回用的有机结垢的影响。该项目团队研究了在RO膜处理之前将四种氧化策略用于最小化有机污垢的方法：UV，UV /过氧化物，臭氧和臭氧/过氧化物。如预期的那样，仅紫外线（即使在4000 mJ / cm〜2的高通量下）对给水中有机物质量的影响也很小，而对平板测试中的结垢控制影响很小甚至没有影响。在两个不同的废水处理厂中，使用膜生物反应器和MF / UF系统的废水，在平板和中试研究中，臭氧和臭氧/过氧化物均显示出对有机物的影响，最小化通量下降并显着改善膜性能。 。相对于对照（非氧化）水，臭氧剂量低至1.5 mg / L已被证明可以改善性能。在撰写此摘要时，UV /过氧化物测试正在进行中，预计于2011年初进行中试规模的数据。因此，本演讲将比较台式（平板测试）和中试规模的四种预氧化策略。通过诸如3-D荧光，PRAM和SEC-UV /荧光技术观察到的比通量变化和有机物变化。将从膜的尸检和结垢的膜的表面表征中获得更多数据。

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