Study on hydrodynamic cavitation disintegration for waste activated sludge: The experimental investigation on the hydrodynamic cavitator

Yonggang Huang*, Tong Zhu, Xiaomin Hu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is very difficult and important to treat Waste Activated Sludge. Above all, an effective process of Sludge Disintegration must be the key pretreatment, which will influence the effectiveness of the following treatment of Waste Activated Sludge directly. A Hydrodynamic cavitation system and two aerobic digestion reactor are made in the laboratory. The sludge from an MBR (Membrane Biologic Reactor) which has been treating sanitary waste are considered as the samples. Samplel were integrated by the Hydrodynamic cavitaion system, then it was put into the ADR (Aerobic Digestion Reactor)l; Sample 2 was put into the ADR2 directly. According to the physical model experiment work in the lab, the conclusions could be drawn, that as a pre-process, hydraulic cavitation method can make the sludge be dewatered easier, and accelerate the digestion reaction. After fifteen days of digestion process, the RR of cavitated sludge was 57%, which was higher than that of the sludge without cavitation treatment by 28%. In addition, the hydraulic cavitation device is simple, ready for industrialization, with higher utilization ration of energy and with little secondary pollution.

Original languageEnglish (US)
Title of host publication2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009
Pages2201-2203
Number of pages3
DOIs
StatePublished - Sep 28 2009
Event2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009 - Xi'an, China
Duration: May 25 2009May 27 2009

Publication series

Name2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009

Conference

Conference2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009
CountryChina
CityXi'an
Period5/25/095/27/09

Keywords

  • Activated sludge
  • Disintegration
  • Hydaulic cavitition
  • Wastewater

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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    Huang, Y., Zhu, T., & Hu, X. (2009). Study on hydrodynamic cavitation disintegration for waste activated sludge: The experimental investigation on the hydrodynamic cavitator. In 2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009 (pp. 2201-2203). [5138589] (2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009). https://doi.org/10.1109/ICIEA.2009.5138589