Weight and volume reduction of organic sludges and enhanced recovery of biomass resources using sonophotocatalysis

Naohito Hayashi, Satoshi Koike, Ryosuke Yasutomi, Eiki Kasai

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The efficiency of sonophotocatalysis, a pretreatment process involving ultrasonic irradiation and photocatalysis, in decreasing the emission amount of sewage sludge and enhancing the recovery of valuable materials, was investigated experimentally. The results indicated a 50% reduction in the sewage sludge emission after sonophotocatalysis was carried out for 2 h. In addition, the recovery ratio of methane gas by anaerobic digestion and dissolved phosphorus were 1.7 and 2.5 times more than those of methane and phosphorus in the recovery process without pretreatment, respectively.

Original languageEnglish
Pages (from-to)635-639
Number of pages5
JournalSongklanakarin Journal of Science and Technology
Volume31
Issue number6
Publication statusPublished - 2009

Keywords

  • Enhanced recovery
  • Methane gas
  • Phosphorus
  • Pretreatment process
  • Sewage sludge
  • Sonophotocatalysis

ASJC Scopus subject areas

  • General

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