Microwave-induced pyrolysis of sewage sludge

被引:333
作者
Menéndez, JA [1 ]
Inguanzo, M [1 ]
Pis, JJ [1 ]
机构
[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain
关键词
sewage sludge; drying; pyrolysis; dielectric heating; microwaves;
D O I
10.1016/S0043-1354(02)00017-9
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This paper describes a new method for pyrolyzing sewage sludge using a microwave furnace. It was found that if just the raw wet sludge is treated in the microwave, only drying of the sample takes place. However, if the sludge is mixed with a small amount of a suitable microwave absorber (such as the char produced in the pyrolysis itself) temperatures of up to 900degreesC can be achieved, so that pyrolysis takes place rather than drying. Microwave treatments were also compared with those carried out in a conventional electric furnace, as well as the characteristics of their respective carbonaccous solid residues. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:3261 / 3264
页数:4
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