MEASUREMENT OF CHEMICAL SLUDGE FLOC DENSITY AND IMPLICATIONS RELATED TO SLUDGE DEWATERING

被引：43

作者：

KNOCKE, WR ^{[1
]}

DISHMAN, CM ^{[1
]}

MILLER, GF ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS,DEPT CIVIL ENGN,AMHERST,MA 01003

来源：

WATER ENVIRONMENT RESEARCH | 1993年 / 65卷 / 06期

关键词：

CENTRIFUGATION; FLOC DENSITY MEASUREMENT; SLUDGE DEWATERING; SLUDGE TESTING;

D O I：

10.2175/WER.65.6.5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An isopycnic centrifugation procedure was developed for estimating the characteristic floc density present in several chemical sludges. Issues addressed included selection of a low osmotic pressure gradient medium; selection of appropriate centrifugal acceleration and lime values for testing; viscosity effects; and need for temperature control. Increases in sludge floc density were predictive of an increase in cake solids concentration following mechanical dewatering. Most sludge water removal during dewatering was hypothesized to be external to the floc structure.

引用

页码：735 / 743

页数：9

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