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首页> 外文期刊>Canadian Journal of Civil Engineering >Wastewater recycling at an electronics company using a combined system of membrane bioreactor and reverse osmosis membrane processes
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Wastewater recycling at an electronics company using a combined system of membrane bioreactor and reverse osmosis membrane processes

机译：电子公司使用膜生物反应器和反渗透膜工艺组合系统进行废水回收

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摘要

Interest in water reuse is increasing due to the water shortage. Especially, water supply will not catch up to the water consumption of the electronics industry in Korea. Two water reclamation processes, conventional activated sludge (CAS) and membrane bioreactor (MBR), were compared to evaluate the feasibility of thin-film transistor – liquid crystal display (TFT–LCD) manufacturing wastewater reclamation as a source of ultra pure water (UPW). Both CAS and MBR processes showed similar organic removal. However the effluent quality was slightly different due to the dynamic filtration in MBR. Activated carbon (A/C) process of CAS additionally removed 35% of the nonbiodegradable organics, whereas dynamic filtration removed 70%. Also, the MBR could remove the suspended solid (SS) perfectly, which made it possible to operate the reverse osmosis (RO) unit economically using MBR effluent; however, effluent from the SS in the CAS effluent made it uneconomical to use RO directly. Considering the increasing water consumption and supply restriction in the future, water reclamation system (WRS) using MBR and RO will be an economical process.
机译：由于缺水，对中水回用的兴趣正在增加。特别是，供水将无法赶上韩国电子行业的用水量。比较了两种水回收工艺，即传统的活性污泥（CAS）和膜生物反应器（MBR），以评估薄膜晶体管–液晶显示器（TFT–LCD）制造废水回收作为超纯水（UPW）的可行性。 ）。 CAS和MBR工艺均显示出相似的有机去除率。但是，由于MBR中的动态过滤，出水质量略有不同。 CAS的活性炭（A / C）工艺还去除了35％的不可生物降解的有机物，而动态过滤去除了70％的有机物。而且，MBR可以完美地去除悬浮固体（SS），这使得使用MBR废水经济地操作反渗透（RO）装置成为可能;然而，来自CAS废水中SS的废水使得直接使用RO不经济。考虑到未来日益增长的用水量和供应限制，使用MBR和RO的水回收系统（WRS）将是一个经济的过程。

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