Environmental Science and Pollution Research

, Volume 25, Issue 16, pp 15990–15997 | Cite as

Treatment of municipal sludge by Fenton oxidation combined vacuum preloading

  • Yajun Wu
  • Zhexin Lin
  • Gangqiang Kong
  • Ting Hu
Research Article


Municipal sludge, composed of numerous types of organic matter with a gel structure, has high water content, low permeability coefficient, and poor mechanical properties. Fenton oxidation-assisted vacuum preloading method for municipal sludge treatment was proposed. First, the municipal sludge was oxidized and treated with Fenton’s reagent; then, drainage consolidation was performed on the sludge with the vacuum preloading method. The optimal dosage of Fenton’s reagent for municipal sludge was determined. Comparative experiments of the one-dimensional consolidation of municipal sludge treated with Fenton’s reagent and the drainage consolidation by Fenton oxidation-assisted vacuum preloading were conducted. The results reveal that the specific resistance of municipal sludge decreases upon Fenton oxidation by approximately 98.6% at the optimal dosage of 22%, sludge water content decreases from 82.14 to 66.67%, volume reduces by ~ 40%, and unconfined compressive strength increases to 55 kPa.


Municipal sludge Fenton oxidation Vacuum preloading Water content Compressive strength 


Funding information

The research was financially supported by the National Natural Science Foundation of China (41772303) and Shanghai Natural Science Foundation, China (17ZR1410100).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Civil EngineeringShanghai UniversityShanghaiChina
  2. 2.College of Civil and Transportation EngineeringHohai UniversityNanjingChina

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