一种在膜生物反应器中处理生活污水和剩余污泥的新方法。

A novel approach to treat combined domestic wastewater and excess sludge in MBR.

作者信息

He Sheng-Bing, Wang Bao-Zhen, Wang Lin, Jiang Yi-Feng, Zhang Li-Qiu

机构信息

School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.

出版信息

J Environ Sci (China). 2003 Sep;15(5):674-9.

PMID:14562930

Abstract

Domestic wastewater was treated by combined anaerobic biofilm-aerobic membrane bioreactor(MBR) process, and part biomass MBR was withdrawn to treat with ozone, then the ozonated sludge was returned to anaerobic inlet. In aerobic MBR, MISS and DO were controlled at 3000-3500 mg/L and 0.8 mg/L respectively. Comparing the experimental results of two stages, it was noticed that ozonation did not affect the removal efficiency for organics but had a significant influence on the removals of NH3-N and TN. During the ozonation period of two months, no excess sludge was wasted, and a zero sludge yield was obtained.

摘要

采用厌氧生物膜-好氧膜生物反应器（MBR）组合工艺处理生活污水，将部分MBR剩余污泥取出进行臭氧处理，然后将臭氧化污泥回流至厌氧进水口。在好氧MBR中，混合液悬浮固体（MISS）和溶解氧（DO）分别控制在3000 - 3500 mg/L和0.8 mg/L。比较两个阶段的实验结果发现，臭氧化处理对有机物的去除效率没有影响，但对氨氮（NH3-N）和总氮（TN）的去除有显著影响。在两个月的臭氧化处理期间，没有排放剩余污泥，实现了污泥零产量。