当前位置： SCI文献检索 > BIORESOURCE TECHNOLOGY期刊下所有文献 > The comparison of the migration and transformation behavior of heavy metals during pyrolysis and liquefaction of municipal sewage sludge, paper mill sludge, and slaughterhouse sludge.

The comparison of the migration and transformation behavior of heavy metals during pyrolysis and liquefaction of municipal sewage sludge, paper mill sludge, and slaughterhouse sludge.

Abstract：

:Municipal sewage sludge, paper mill sludge, and slaughterhouse sludge were pyrolyzed and liquefied for the production of bio-char. The migration and transformation behavior of Cu, Cr, and Zn during pyrolysis and liquefaction of these sludges were studied. Pyrolysis and liquefaction promoted mobile fraction (F1 and F2) to stable fraction (F3 and F4). The results showed that pyrolysis and liquefaction largely affected the redistribution of Cu and Zn in raw materials. The environmental risk assessment results indicated that the environmental risk levels of Cu and Zn were significantly reduced in bio-char, and risk level of Cr was slightly decreased after pyrolysis or liquefaction. Both pyrolysis and liquefaction were promising detoxification technologies for the three sludges in terms of the mitigation of heavy metals toxicity. It was suggested that dewatered sludge could be reduced toxicity/risk before utilization by pyrolysis or liquefaction technology, especially for Cu and Zn in slaughterhouse sludge.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Shao J,Yuan X,Leng L,Huang H,Jiang L,Wang H,Chen X,Zeng G

doi

10.1016/j.biortech.2015.08.147

subject

Has Abstract

pub_date

2015-12-01 00:00:00

pages

16-22

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(15)01263-8

journal_volume

198

pub_type

杂志文章

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