Drying characteristics of sewage sludge

被引：12

作者：

Qian, Jiang ^{[1
]}

Yoon, Yeong Woo ^{[1
]}

Youn, Pil Sang ^{[1
]}

Kim, Ji Hye ^{[1
]}

Choi, Don Sun ^{[1
]}

Choi, Jeong-Hoo ^{[1
]}

Choi, Young Chan ^{[2
]}

Jung, Bongjin ^{[3
]}

机构：

[1] Konkuk Univ, Dept Chem Engn, Seoul 143701, South Korea

[2] Korea Inst Energy Res, Taejon 305343, South Korea

[3] Univ Suwon, Dept Environm & Energy Engn, Suwon 445743, South Korea

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2011年 / 28卷 / 07期

关键词：

Drying; Rate; Activation Energy; Sewage Sludge; KINETICS;

D O I：

10.1007/s11814-011-0009-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

To obtain the drying rate of sewage sludge for use in design of a conductive indirect-heating dryer with agitation, the drying characteristics of sewage sludge from three different wastewater treatment plants were investigated with a thermogravimetric analyzer (TGA) in isothermal conditions. Temperature and sample mass were considered as experimental variables. The drying mechanism agreed well with the shrinking core model dominated by the kinetic rate. The activation energy of drying was 17.30 kJ/g mol. A rate equation was proposed for drying of sewage sludge.

引用

页码：1636 / 1640

页数：5

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