MAGNETIC FORCED SEDIMENTATION OF FLOCS IN ACTIVATED-SLUDGE SUPPLEMENTED WITH FERROMAGNETIC POWDER OF IRON-OXIDE

被引：22

作者：

SAKAI, Y ^{[1
]}

KURAKATA, S ^{[1
]}

TAKAHASHI, F ^{[1
]}

机构：

[1] UTSUNOMIYA UNIV,FAC ENGN,DEPT APPL CHEM,UTSUNOMIYA,TOCHIGI 321,JAPAN

来源：

JOURNAL OF FERMENTATION AND BIOENGINEERING | 1991年 / 71卷 / 03期

关键词：

D O I：

10.1016/0922-338X(91)90114-V

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Aiming to increase the sedimentation rate of flocs prepared by the activated sludge process, the effect of the application of ferromagnetic powder of iron oxide (magnetic powder) and a gradient magnetic field on the sedimentation process was examined. The volumetric loading rate of Polypepton was kept to 200-1,000 mg l-1 d-1 during 7 d in the activated sludge supplemented with 2,000 mg l-1 of magnetic powder. When a gradient magnetic field was applied, the initial zone settling velocity in the case of the Polypepton loading rate of 1,000 mg l-1 d-1 was found to be 36 times faster than that in the case of the control.

引用

页码：208 / 210

页数：3

共 12 条

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