| MBR-RO组合工艺污水回收中试研究 |
| 摘要点击 3207 全文点击 2409 投稿时间：2007-04-06 修订日期：2007-05-17 |
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| 中文关键词 MBR-RO组合工艺 反渗透 生物污染 污水回收 |
| 英文关键词 combined MBR-RO process reverse osmosis (RO) bio-fouling wastewater recovery |
| DOI 10.13227/j.hjkx.20080412 |
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| 中文摘要 |
| 以A2/O-MBR为预处理工艺，构建了MBR-RO组合系统并用于城市污水的直接处理与回收，考察了MBR工艺作为RO预处理的可行性，评价了RO膜的出水水质，分析了不同操作条件对RO膜的渗透性能及膜污染的影响.研究表明，RO出水平均值为TOC<1.3 mg/L、NH＋4-N<0.03 mg/L、TN<0.1 mg/L，TP未检出，电导率和浊度分别小于30 μS/cm和0.12 NTU，MBR出水中的无机离子已被RO完全截留，MBR-RO系统具有很高的污染物降解能力和脱盐能力，其出水水质可达饮用水水质标准.MBR作为RO的预处理是完全可行的，连续6个多月的运行中RO膜污染表现不严重. |
| 英文摘要 |
| The combined MBR-RO pilot system, using A２/O-MBR technology as a pre-treatment process, has been set up for the direct municipal wastewater treatment and recovery. The objective of this pilot study was to further investigate the feasibility of MBR system as a pretreatment process for RO permeation, estimate the MBR-RO process to produce high grade effluent, and evaluate the different pre-conditions affecting the RO permeability and bio-fouling. The results showed that the average RO permeate qualities were as TOC<1.3 mg/Ｌ, NH＋４-N<0.03 mg/Ｌ, TN<0.1 mg/Ｌ and not detectable for TP, in terms of conductivity<30 μS/cm and turbidity<0.12 NTU, and complete inorganic irons rejection could be achieved with the lowest concentration, thus the grade of RO effluent could meet the drinking water standard. MBR technology was suitable as a pre-treatment process for RO in the MBR-RO process and thus no severe RO bio-fouling occurred during the whole study period of 6 months. |
