Research and application progress of supercritical water oxidation technology on waste sludge treatment

SHI Dezhi; ZHANG Jinlu; HU Chunyan; ZHANG Chao; LI Pengfei

doi:10.11949/j.issn.0438-1157.20161346

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Research and application progress of supercritical water oxidation technology on waste sludge treatment

更新时间：2025-11-26

- Research and application progress of supercritical water oxidation technology on waste sludge treatment
- CIESC Journal Issue 1, Pages: 37-49(2017)
- 作者机构：
  
  重庆大学城市建设与环境工程学院, 三峡库区生态环境教育部重点实验室, 国家级低碳绿色建筑联合研究中心,重庆,400045
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161346
  CLC： 799.3
- Online First：05 January 2017，
  
  Published：05 January 2017
- 稿件说明：
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SHI Dezhi, ZHANG Jinlu, HU Chunyan, et al. Research and application progress of supercritical water oxidation technology on waste sludge treatment[J]. CIESC Journal, 2017, (1): 37-49.
DOI：

SHI Dezhi, ZHANG Jinlu, HU Chunyan, et al. Research and application progress of supercritical water oxidation technology on waste sludge treatment[J]. CIESC Journal, 2017, (1): 37-49. DOI： 10.11949/j.issn.0438-1157.20161346.

摘要

超临界水氧化技术是一种新型且高效的废物处理技术，利用水在超临界状态下的特殊性质使其在处理含有机物及难降解有机污染物的城市污泥、工业污泥等时具有独特的优势。介绍了超临界水氧化技术机理的研究进展，介绍了国内外近年来超临界水氧化技术在污泥处理领域的研究进展，从反应时间、反应温度、体系压力、催化剂、氧化剂、共氧化剂等影响因素系统总结。介绍了该技术在国内外污泥处理领域的实际应用现状、具体工艺流程及成本效益，并针对目前存在的问题对超临界水氧化处理技术处理污泥的前景方向进行了展望。

Abstract

Supercritical water oxidation(SCWO)

as a new and highly effective technique for waste disposal attributing to the special nature of water in the supercritical state

has significant advantages of disposing of sewage and industrial sludge which contain dissolved organic matters(DOM) and persistent organic pollutants(POPs).This paper summarized the progress in basic principles of SCWO

including free radicals reaction as same as wet air oxidation

internal combustion by thermal flames

etc.Research progress on treatment of different kinds of sludge by SCWO at domestic and abroad were reviewed

and main influence factors such as reaction temperature

systematic pressure

reaction time

catalyst

oxidant and co-oxidant

were concluded systematically.Applications of SCWO for sludge treatment in pilot scale and commercial full scale

in USA

Ireland

Sweden and China were introduced in details including its technological process

technical parameters and investment/operation cost.Based on the analysis of its existing disadvantages and problems

referring to salt precipitation

corrosion

high energy consumption and difficult operation of equipment

the future research direction for SCWO were also pointed out.

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