USE OF DILATOMETRIC AND DRYING TECHNIQUES FOR ASSESSING SLUDGE DEWATERING CHARACTERISTICS

被引：97

作者：

ROBINSON, J ^{[1
]}

KNOCKE, WR ^{[1
]}

机构：

[1] VIRGINIA POLYTECH INST & STATE UNIV,DEPT CIVIL ENGN,BLACKSBURG,VA 24061

来源：

WATER ENVIRONMENT RESEARCH | 1992年 / 64卷 / 01期

关键词：

ANALYSIS; BOUND WATER; CONDITIONING; DEWATERING; DILATOMETRY; DRYING; SLUDGE;

D O I：

10.2175/WER.64.1.9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Various methods have been used to characterize the water distribution present in waste sludge samples. This study investigated constant temperature (35-degrees-C) drying and dilatometric techniques for quantifying the bound water content of sludges. Preference was stated for the use of dilatometric methods. Bound water content decreased following polymer or freeze-thaw conditioning of waste chemical and biological sludges. Also, mechanical dewatering produced a significant decrease in bound water content and corresponding increase in dewatered cake solids concentration. Interstitial water was found to have a key role in defining dewatered cake solids concentrations.

引用

页码：60 / 68

页数：9

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