Migration and risk assessment of heavy metals in sewage sludge during hydrothermal treatment combined with pyrolysis
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- 作者：Xingdong Wanga ; Chunxing Lia ; Bin Zhangb ; Jingjiang Lina ; Qiaoqiao Chic ; Yin Wanga ; yinwang@iue.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Sewage sludge ; Hydrothermal treatment (HTT) ; Pyrolysis ; Heavy metals (HMs) ; Risk assessment
- 刊名：Bioresource Technology
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：221
- 期：Complete
- 页码：560-567
- 全文大小：463 K
文摘
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HTP was used for SS disposal and HM immobilization.
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Enhanced dehydration and a reduction in the SS volume can be achieved after HTP.
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HMs migrated from the bioavailable fractions to the more stable fractions after HTP.
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The directly toxic HMs and their leaching potential was lower after HTP.
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Based on the RAC, the ecological risk of HMs in the biochar decreased to the lowest pollution level.
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