Dewatering of sewage sludge with coal as a conditioner using thermal compression

被引：1

作者：

Fan, Li ^{[1
]}

Zhou, Mingyuan ^{[1
]}

Li, Xiuli ^{[1
]}

机构：

[1] Shanghai Second Polytech Univ, Sch Urban Dev & Environm Engn, Shanghai 201209, Peoples R China

来源：

PROGRESS IN ENVIRONMENTAL PROTECTION AND PROCESSING OF RESOURCE, PTS 1-4 | 2013年 / 295-298卷

关键词：

dewatering; thermal compression; sewage sludge; coal; SKELETON BUILDERS; LIGNITE;

D O I：

10.4028/www.scientific.net/AMM.295-298.1452

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Thermal compression is effective for solid-liquid separation of various materials. In this paper, thermal compression was applied on the dewatering of sewage sludge with coal as a filter aid. Experiments with 0.25-1 mm coal particles (0.2 kg coal/kg dry sludge solid) obtained cakes of solid content over 49%. Higher dosage of coal generated cakes with lower moisture content. The combustion behavior of the sludge cake was studied using TG/DTG analysis. The results showed that a total weight loss of 65.1% occurred from 25 degrees C to 800 degrees C, including two major weight loss stages corresponding to loss of moisture and volatile materials respectively.

引用

页码：1452 / 1455

页数：4

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