Performance of membrane bioreactor (MBR) system with sludge Fenton oxidation process for minimization of excess sludge production
Performance of membrane bioreactor (MBR) system with sludge Fenton oxidation process for minimization of excess sludge production
复制标题
采用污泥芬顿氧化工艺的膜生物反应器 (MBR) 系统的性能可最大限度地减少剩余污泥的产生
DOI：
10.1016/j.jhazmat.2009.11.071
复制
发表时间：
2010-04-15
影响因子：
13.6
通讯作者：
Wei Chao-hai
中科院分区：
文献类型：
--
作者：
He Ming-he;Wei Chao-hai
该研究报告了在膜生物反应器（MBR）中产生的剩余污泥的最小化与污泥芬顿氧化（氧化使用H2 O2与铁催化剂）的过程。整个实验阶段分为两个阶段。在第一阶段，进行了一系列的批处理研究，以阐明活性污泥解体的参数。结果表明，芬顿氧化能使细胞壁破裂，细胞质释放，从而增加了溶液中可溶性有机物和可溶性氮的含量。在接下来的阶段。运行了两个有和没有芬顿工艺的MBR，以评价污泥芬顿氧化对污泥产率和水质的影响。实验结果表明，加入芬顿工艺可显著降低污泥产量，平均污泥产率从0.15 g MLSS/g COD降至0.006 g MLSS/g COD。两个系统的出水水质均维持在满意水平。此外，还显示出具有污泥芬顿氧化工艺的MBR系统比没有它的MBR系统显示出相对更好的TN去除性能。All rights reserved.
The study reports the minimization of excess sludge produced in the membrane bioreactor(MBR) coupled with a sludge Fenton oxidation (oxidation using H2O2 with an iron catalyst) process. Total experimental period was divided into two stages. At the first stage, a series of batch studies were carried out to elucidate the parameters governing the activated sludge disintegration. It was found that Fenton oxidation can disrupt the cell walls and cause the release of plasm from the cells, thus increasing the content of soluble organics and soluble nitrogen in the solution. At the following stage. two MBRs with and without the Fenton process were operated to evaluate the influence of sludge Fenton oxidation on the sludge yield and water quality. it was demonstrated that the incorporation of Fenton process can significantly reduce sludge production, as evidenced from the decrease in the value of the average sludge yield from 0.15 to 0.006g MLSS/g COD. The water quality of effluent in both systems was maintained at a satisfactory level. Furthermore, it was revealed that the MBR system with the sludge Fenton oxidation process showed relatively better performance for TN removal than that without it. (C) 2009 Elsevier BY. All rights reserved.