Continuous thermal hydrolysis and energy integration in sludge anaerobic digestion plants

被引：71

作者：

Fdz-Polanco, F. ^{[1
]}

Velazquez, R. ^{[1
]}

Perez-Elvira, S. I. ^{[1
]}

Casas, C. ^{[1
]}

del Barrio, D. ^{[1
]}

Cantero, F. J. ^{[1
]}

Fdz-Polanco, M. ^{[1
]}

Rodriguez, P. ^{[2
]}

Panizo, L. ^{[2
]}

Serrat, J. ^{[2
]}

Rouge, P. ^{[2
]}

机构：

[1] Univ Valladolid, Dept Ingn Quim & Tecnol Medio Ambeinte, E-47002 Valladolid, Spain

[2] SOREA Aguas Barcelona, Barcelona 080118, Spain

来源：

WATER SCIENCE AND TECHNOLOGY | 2008年 / 57卷 / 08期

关键词：

anaerobic digestion; biogas; sludge; thermal hydrolysis;

D O I：

10.2166/wst.2008.072

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A thermal hydrolysis pilot plant with direct steam injection heating was designed and constructed. In a first period the equipment was operated in batch to verify the effect of sludge type, pressure and temperature, residence time and solids concentration. Optimal operation conditions were reached for secondary sludge at 170 degrees C, 7 bar and 30 minutes residence time, obtaining a disintegration factor higher than 10, methane production increase by 50% and easy centrifugation In a second period the pilot plant was operated working with continuous feed, testing the efficiency by using two continuous anaerobic digester operating in the mesophilic and thermophilic range. Working at 12 days residence time, biogas production increases by 40-50%. Integrating the energy transfer it is possible to design a self-sufficient system that takes advantage of this methane increase to produce 40% more electric energy.

引用

页码：1221 / 1226

页数：6

共 12 条

[1] Enhanced anaerobic degradation of mechanically disintegrated sludge [J].

Baier, U ;

Schmidheiny, P .

WATER SCIENCE AND TECHNOLOGY, 1997, 36 (11) :137-143

[2] Strategies for changing temperature from mesophilic to thermophilic conditions in anaerobic CSTR reactors treating sewage sludge [J].

Bousková, A ;

Dohányos, M ;

Schmidt, JE ;

Angelidaki, I .

WATER RESEARCH, 2005, 39 (08) :1481-1488

[3] Automated equipment for anaerobic sludge parameters determination [J].

Fdz-Polanco, F ;

Nieto, P ;

Elvira, SP ;

van der Zee, FP ;

Fdz-Polanc, M ;

García, PA .

WATER SCIENCE AND TECHNOLOGY, 2005, 52 (1-2) :479-485

[4] Ultrasonic sludge treatment for enhanced anaerobic digestion [J].

Hogan, F ;

Mormede, S ;

Clark, P ;

Crane, M .

WATER SCIENCE AND TECHNOLOGY, 2004, 50 (09) :25-32

[5] UPGRADING OF ANAEROBIC-DIGESTION OF WASTE ACTIVATED-SLUDGE BY THERMAL PRETREATMENT [J].

LI, YY ;

NOIKE, T .

WATER SCIENCE AND TECHNOLOGY, 1992, 26 (3-4) :857-866

[6]

OHSOL EO, 1997, Patent No. 5593591

[7]

PANTER K, 2006, WORLD WATER ENV MAR, P143

[8] Sludge minimisation technologies [J].

Pérez-Elvira S.I. ;

Nieto Diez P. ;

Fdz-Polanco F. .

Reviews in Environmental Science and Bio/Technology, 2006, 5 (4) :375-398

[9]

Rivard CJ, 1998, United States, Patent No. [5785852, US 5,785, 852/A/PAN]

[10]

SOLHEIM OE, 2004, Patent No. 0168990

← 1 2 →