| MBR-RO组合工艺深度处理高碳高氮废水的研究 |
| 摘要点击 1735 全文点击 2295 投稿时间：2008-07-11 修订日期：2008-09-09 |
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| 中文关键词 A/O-MBWRO 进水碳氮比 膜污染 污水处理 |
| 英文关键词 A/O-MBR/RO：influent COD/N ratio membrane fouling wastewater treatment |
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| 中文摘要 |
| 采用A/O-MBR/RO工艺深度处理模拟高碳高氮废水，考察了不同进水的COD/N对有机物和氨氮去除效果的影响，并且
深入考察反渗透膜的污染特性结果表明，A/O-MBR能够实现95.6％的有机污染物去除率，反渗透的出水水质指标TOC<0.9mg·-1、TN<12.65mg·L-1、总硬度<0.038 mol·L、总碱度<14.6mg·L-1，达到了城镇污水回用级标准.COD/N对有机物去除率影响不大，但影响总氮的脱除过程当COD/N的平均值为10.2时，总氮的去除主要通过好氧区内同步硝化反硝化过程完成，总氮的平均去除率为89.4％；当COD/N的平均值为7.1、5.6时，总氮的去除主要通过传统的硝化反硝化和同步硝化反硝化共同完成，总氮的平均去除率分别为72％、74％通过扫描电镜观察了反渗透膜污染的状态，利用傅立叶变换红外光谱测定了膜污染物质的红外吸收光谱，指出膜污染的主要污染物是A/O-MBR出水中的溶解性微生物产物 |
| 英文摘要 |
| The perfommnces of A/O-MBR/RO systeln for the removal of mtrogen and COD were investigated Result indicated that most organicwas relnoved in the A/O-MBR and the average removal efficiency was 95.6％The water quality of RO effluent which in temas of TOC<0.9mg·L-1 ，TN<12.65mg·L-1 ，total rigidity<0.038 mol·L-1 ，total alkalinity<14.6mg·L-1 could meet the water quality requirements forthe town wastewater reuse The average removal efficiency of orgmdc was almost mnaffected by COD/N，but the process of TN removal wasaffected by COD/N. TN removal was prmarily based on simultaneous nitritlcation and denitritlcation (SND) process occurred in the aerobiczone and the average removal efficiency of TN was 89.4％ with average COD/N of 10.2 Both aerobic SND and conventional biologicalnitrification/denitrification contributed to nitrogen renloval，the average removal efficiency of TN was 72％，74％ with average COD/N of 7.1and 5.6. The fouling cake layer formaed on the RO rnembrane surface was observed by scanning dectric microscopy. The membrane fouling wascharacterized by Fomier transfom infrared spectroscopy techniique which showed that the major components of the fnulants were sduble microbeproducts |
