Influence of microwave irradiation on sludge dewaterability

被引：153

作者：

Yu, Qiang ^{[1
]}

Lei, Hengyi ^{[1
]}

Yu, Guangwei ^{[2
]}

Feng, Xin ^{[1
]}

Li, Zhaoxu ^{[1
]}

Wu, Zhicheng ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China

[2] S China Agr Univ, Dept Environm Sci & Engn, Guangzhou 510642, Guangdong, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2009年 / 155卷 / 1-2期

关键词：

Sludge dewaterability; Microwave irradiation; Capillary suction time; Contact time; WASTE ACTIVATED-SLUDGE; SEWAGE-SLUDGE; ULTRASONIC DISINTEGRATION; WATER SLUDGE; PHOTOLUMINESCENCE; SOLUBILIZATION; INACTIVATION; POWDERS; GROWTH;

D O I：

10.1016/j.cej.2009.07.010

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The study focuses on the effect of microwave irradiation on sludge dewaterability. Capillary suction time and specific resistance of filtration were used to evaluate sludge dewaterability. Soluble chemical oxygen demand, extracellular polymeric substance (EPS) content and sludge particle size were determined in an attempt to explain the observed changes in sludge dewaterability. The results indicated that microwave application slightly enhanced sludge dewaterability with short contact time, while it significantly deteriorated sludge dewaterability with long contact time. The results show that 900 W and 60 s is an ideal microwave condition, yielding maximum sludge dewaterability characteristics by generating sludge with optimal disintegration (1.5-2%), EPS concentration (1500-2000 mg/l), and particle size distribution (120-140 mu m). (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：88 / 93

页数：6

共 38 条

[1]

[Anonymous], 1998, STAND METH EX WAT WA, V20th

[2] Production of carbon nanotubes from methane Use of Co-Zn-Al catalysts prepared by microwave-assisted synthesis [J].

Benito, R. ;

Herrero, M. ;

Labajos, F. M. ;

Rives, V. ;

Royo, C. ;

Latorre, N. ;

Monzon, A. .

CHEMICAL ENGINEERING JOURNAL, 2009, 149 (1-3) :455-462

[3]

BRADFORD MM, 1976, ANAL BIOCHEM, V72, P248, DOI 10.1016/0003-2697(76)90527-3

[4] Synthesis, structural refinement and optical behavior of CaTiO3 powders:: A comparative study of processing in different furnaces [J].

Cavalcante, L. S. ;

Marques, V. S. ;

Sczancoski, J. C. ;

Escote, M. T. ;

Joya, M. R. ;

Varela, J. A. ;

Santos, M. R. M. C. ;

Pizani, P. S. ;

Longo, E. .

CHEMICAL ENGINEERING JOURNAL, 2008, 143 (1-3) :299-307

[5] Synthesis, Characterization, Anisotropic Growth and Photoluminescence of BaWO4 [J].

Cavalcante, L. S. ;

Sczancoski, J. C. ;

Lima, L. F. ;

Espinosa, J. W. M. ;

Pizani, P. S. ;

Varela, J. A. ;

Longo, E. .

CRYSTAL GROWTH & DESIGN, 2009, 9 (02) :1002-1012

[6] Sewage sludge nutrient solubilization using a single-stage microwave treatment [J].

Chan, Winnie I. ;

Wong, Wayne T. ;

Liao, Ping H. ;

Lo, Kwang V. .

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 2007, 42 (01) :59-63

[7] Effect of acid and surfactant treatment on activated sludge dewatering and settling [J].

Chen, YG ;

Yang, HZ ;

Gu, GW .

WATER RESEARCH, 2001, 35 (11) :2615-2620

[8] Alkaline solubilization and microwave irradiation as a combined sludge disintegration and minimization method [J].

Dogan, Ilgin ;

Sanin, F. Dilek .

WATER RESEARCH, 2009, 43 (08) :2139-2148

[9] Characterization of soluble organic matter of waste activated sludge before and after thermal pretreatment [J].

Eskicioglu, Cigdem ;

Kennedy, Kevin J. ;

Droste, Ronald L. .

WATER RESEARCH, 2006, 40 (20) :3725-3736

[10] Athermal microwave effects for enhancing digestibility of waste activated sludge [J].

Eskicioglu, Ciydem ;

Terzian, Nicolas ;

Kennedy, Kevin J. ;

Droste, Ronald L. ;

Hamoda, Mohamed .

WATER RESEARCH, 2007, 41 (11) :2457-2466

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