Feasibility of treating brewery wastewater using bio films

M. M. Manyuchi, N. Chikwama, C. Mbohwa, E. Muzenda

Research output: Contribution to journalConference articlepeer-review


The brewery industry is one of the major industries in Zimbabwe and the following study was conducted to assess the techno-economic feasibility of reuse of wastewater after treatment using the biofilm that forms on the bio carriers. The malting plant of a certain brewing plant uses up to 350000 cubic meters water a year discharging about 75% of the biologically contaminated water as effluent which is discharged into the ecosystem. A biological water treatment approach was done using a moving bed biofilm reactor, with use of Mutag biochips. The treatment resulted in 93% BODreduction, 87.9% COD reduction, 48% TSS reduction, 44% TDS reduction and a 97.8% increase in DO at a treatment period of 24 hours. An economic analysis was done with a payback period of 2.09 years and return on investment of 49% indicating the techno-economic viability of brewery wastewater.

Original languageEnglish
Pages (from-to)14-19
Number of pages6
JournalProceedings of the International Conference on Industrial Engineering and Operations Management
Issue numberJUL
Publication statusPublished - 2018
Event2nd European International Conference on Industrial Engineering and Operations Management.IEOM 2018 -
Duration: Jul 26 2018Jul 27 2018

All Science Journal Classification (ASJC) codes

  • Strategy and Management
  • Management Science and Operations Research
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering


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