SUBMERGED FILTER SYSTEM CONSISTING OF MAGNETIC TUBULAR SUPPORT MEDIA COVERED WITH A BIOFILM FIXED BY MAGNETIC FORCE

被引：9

作者：

SAKAI, Y

NITTA, Y

TAKAHASHI, F

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Utsunomiya University, Utsunomiya, 321

来源：

WATER RESEARCH | 1994年 / 28卷 / 05期

关键词：

SUBMERGED FILTER; SUPPORT MEDIA; MAGNETIC ATTRACTION; FERROMAGNETIC POWDER; COD REMOVAL; BIOFILM;

D O I：

10.1016/0043-1354(94)90205-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A submerged filter system consisting of magnetically anisotropic tubular support media was investigated for wastewater treatment with a biofilm system. Activated sludge supplemented with ferromagnetic powder for the preparation of the biofilm. The biofilm was formed within 15 min on the magnetic support media by magnetic attraction. The magnetic support media were able to treat wastewater containing 0.2 gl(-1) COD removing 72-94% COD with a retention time of 8 h. In the case of a 1 h retention time, the magnetic support media were found to have a capacity to treat wastewater continuously maintaining about 80% removal of total COD, discarding excess sludge from the system at 1-3 day intervals.

引用

页码：1175 / 1179

页数：5

共 8 条

[1] SEWAGE-TREATMENT UNDER CONDITIONS OF BALANCING MICROBIAL-GROWTH AND CELL DECAY WITH A HIGH-CONCENTRATION OF ACTIVATED-SLUDGE SUPPLEMENTED WITH FERROMAGNETIC POWDER [J].