Effect of microwave irradiation on the disintegration and acidogenesis of municipal secondary sludge

被引：97

作者：

Ahn, Johng-Hwa ^{[2
]}

Shin, Seung Gu ^{[1
]}

Hwang, Seokhwan ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Sch Environm Sci & Engn, Pohang 790784, Gyeongbuk, South Korea

[2] Kangwon Natl Univ, Coll Engn, Div Environm & Geosyst Engn, Chunchon 200701, Gangwon, South Korea

来源：

CHEMICAL ENGINEERING JOURNAL | 2009年 / 153卷 / 1-3期

关键词：

Anaerobic process; Batch processing; Biochemical acidogenic potential; Mesophiles; Pretreatment; Waste treatment; WASTE-ACTIVATED-SLUDGE; ANAEROBIC-DIGESTION; PRETREATMENT PROCESSES; ACID PRODUCTION; ACETIC-ACID; WATER; DESTRUCTION; PERFORMANCE; BIOSOLIDS;

D O I：

10.1016/j.cej.2009.06.032

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This work experimentally determined the effect of microwave treatment on the disintegration and acido-genesis of municipal secondary sludge. Sludge samples (500 g) were heated for 0, 3, 5,7, 9, 11, and 15 min in a microwave oven (2450 MHz, 700W). The solubilization degree (soluble chemical oxygen demand (SCOD)/COD) of sludge increased asymptotically with microwave irradiation time from 2% at 0 min to 22% at 15 min. The concentrations of soluble protein, carbohydrate, lipid, and calcium also increased with microwave irradiation time. The biochemical acidogenic potentials (BAP) of sludge increased from 3.58 to 4.77 g COD 1(-1). The results show that microwave irradiation increases the solubilization degree and BAP of municipal secondary sludge. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：145 / 150

页数：6

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