Treatment of metalworking fluids: Development of a bioconsortium for the treatment of nanofiltration permeate

Nidal Hilal, Gerald Busca, Martin D. Waller

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Traditional treatment methods of waste metalworking fluids produce an aqueous phase containing toxic components and with a high Chemical Oxygen Demand (COD). In this paper, a biological solution is proposed to further reduce both the effluent COD and its toxicity. A method to develop a bioconsortium from microbes found in the waste metalworking fluid is proposed. The development took place in three phases: feasibility, bioconsortium development and optimisation. Flask tests have been used to show the feasibility of using the metalworking fluid indigenous microbial community for the degradation of the nanofiltration permeate of the metalworking fluid. A suspended bioreactor allowed the development of a better-adapted consortium. Finally, a fixed bed bioreactor inoculated with the developed bioconsortium was set up and run for 8 months to test the bioconsortium's robustness and to optimise the biological process. A bioconsortium was successfully developed using a simple method and a 90% reduction in the original nanofiltration COD level was achieved by the fixed bed bioreactor.

Original languageEnglish
Pages (from-to)641-648
Number of pages8
JournalJournal of Chemical Technology and Biotechnology
Volume80
Issue number6
DOIs
Publication statusPublished - Jun 2005
Externally publishedYes

Fingerprint

Biological Oxygen Demand Analysis
Nanofiltration
Bioreactors
Chemical oxygen demand
chemical oxygen demand
bioreactor
Fluids
fluid
Biological Phenomena
Poisons
biological processes
Toxicity
Effluents
microbial community
effluent
toxicity
Degradation
degradation
method
test

Keywords

  • Bacterial consortia
  • Biodegradation
  • Combine technology
  • Membrane filtration
  • Metalworking fluids
  • Mixed chemical effluent

ASJC Scopus subject areas

  • Biotechnology
  • Chemical Engineering(all)
  • Bioengineering
  • Chemistry(all)

Cite this

Treatment of metalworking fluids : Development of a bioconsortium for the treatment of nanofiltration permeate. / Hilal, Nidal; Busca, Gerald; Waller, Martin D.

In: Journal of Chemical Technology and Biotechnology, Vol. 80, No. 6, 06.2005, p. 641-648.

Research output: Contribution to journalArticle

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