EFFECTS OF SONICATION ON ACTIVATED-SLUDGE

被引：56

作者：

KING, RO

FORSTER, CF

机构：

[1] UNIV BIRMINGHAM,DEPT CIVIL ENGN,POB 363,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND

[2] UNIV BIRMINGHAM,DEPT CHEM ENGN,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND

来源：

ENZYME AND MICROBIAL TECHNOLOGY | 1990年 / 12卷 / 02期

关键词：

Activated sludge; extracellular polymers; floc strength; sonication;

D O I：

10.1016/0141-0229(90)90082-2

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：

Sonication with power levels of 7.5-75 W-min caused disruption of the sludge flocs which increased with the intensity of the power. This caused the filtration characteristics and the quality of the sludge supernatant to deteriorate. There was a clear relationship between the mean particle size and the sonic power, a relationship that could be used to derive values for the floc strength. Sonication also released soluble carbohydrate and protein from the sludge. The way in which this release occurred in the presence of a high-molecular-weight cationic polyelectrolyte suggests that there was a sequential release of different biopolymers from the sludge as the power was increased. © 1990.

引用

页码：109 / 115

页数：7

共 17 条

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