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首页> 外文会议>Membrane technology 2008 >MEMBRANES for INDUSTRIAL WATER REUSE -THEY’RE NOT JUST FOR MUNICIPAL APPLICATIONS ANYMORE
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MEMBRANES for INDUSTRIAL WATER REUSE -THEY’RE NOT JUST FOR MUNICIPAL APPLICATIONS ANYMORE

机译：用于工业用水的膜-不仅仅是用于市政应用

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摘要

Over the last few years, membranes have become the preferred treatment technology inrnmunicipal water and wastewater treatment. However, many industrial treatment processes haverncontinued to rely on conventional techniques. With recent improvements in membranerntechnologies, and with more stringent discharge requirements for industrial systems, membranesrnare becoming the preferred treatment technology for industrial processes as well.rnCommon applications for using membranes in industrial treatment systems include:rn1. Secondary treatment, using Membrane Bio-Reactors (MBR), where BOD and TSS limitsrnare being tightened.rn2. Tertiary treatment, using low pressure membranes (e.g. Microfiltration), where therneffluent is being reused.rn3. Tertiary treatment, using high pressure membranes (e.g. Nanofiltration, Reverse Osmosisrn[RO]), when Total Dissolved Solids, metals, and/or emerging contaminants must bernremoved to meet tightened discharge requirements.rnMost industrial wastewater streams contain higher organic loads, measured in thousands of mg/lrnBOD and COD, than municipal streams. Also, many industrial streams have highrnconcentrations of TDS. Finally, peaking factors for industrial streams tend to be much higherrnthan for municipal streams. These factors make industrial treatment systems challenging torndesign.rnThis presentation provides information on how membranes have been or will be used in severalrnindustrial applications to achieve treatment targets.
机译：在过去的几年中，膜已成为工业用水和废水处理的首选处理技术。但是，许多工业处理过程一直依赖传统技术。随着膜技术的最新改进以及对工业系统的排放要求越来越严格，膜也成为工业过程的首选处理技术。在工业处理系统中使用膜的常见应用包括：rn1。使用膜生物反应器（MBR）进行二级处理，其中BOD和TSS的限制值已收紧。使用低压膜（例如微滤）进行第三级处理，其中废水被重复使用。当必须去除总溶解固体，金属和/或新出现的污染物以满足严格的排放要求时，使用高压膜（例如，纳滤，反渗透）进行第三次处理。大多数工业废水包含较高的有机负荷，以千计mg / lrnBOD和COD高于市政水。同样，许多工业流都含有高浓度的TDS。最后，工业流的峰值因子往往比市政流的峰值因子高得多。这些因素使工业处理系统难以进行破损的设计。本演示文稿提供了有关膜在多种工业应用中已经或将如何使用以达到治疗目标的信息。

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