Treatment of Tofu industry's wastewater using combination of ozonation and hydrodynamic cavitations method with venturi injector

E. F. Karamah, A. R. Primasto, R. R. Najeges, S. Bismo

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Indonesia is one of the country with the biggest population of tofu industries in the world. Tofu wastewater can harm the environment and alter the physical and chemical properties of water in river bodies, which is dangerous for human and living organism within the river. So it needs to be treated before disposed into the environment. The purpose of this research is to evaluate the performance of ozonation [O], hydrodynamic cavitations [HC], and combination of both [HC/O] in treating tofu wastewater. The variations of circulation flow rate are 2, 3, and 4 LPM and dosage of ozone is single and series ozonator. [HC/O] method (4 LPM flowrate and 129 mg/h dosage of ozone) produces the best performance, with degradation of 943 mg/L COD and 293 mg/L TSS in 180 minutes. This result is much better than the 4 LPM variant of [HC] method and series variant of [O] method separately, which are only capable of degrading 485 mg/L COD-288 mg/L TSS and 136 mg/L COD-233 mg/L TSS in 180 minutes accordingly.

Original languageEnglish
Article number062007
JournalJournal of Physics: Conference Series
Volume1198
Issue number6
DOIs
Publication statusPublished - 10 May 2019
Event1st Symposium of Emerging Nuclear Technology and Engineering Novelty, SENTEN 2018 - Palembang, South Sumatra, India
Duration: 4 Jul 20185 Jul 2018

Keywords

  • COD
  • hydrodynamic
  • ozonation
  • tofu wastewater
  • TSS

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