Feasibility of using sewage sludge bio char in treating municipal sewage

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

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


In this study, activated biochar from municipal sewage sludge was used for the treatment of sewage wastewater. The sewage physicochemical parameters were measured before and after bio filtration with biochar applying the principle of adsorption using the standard methods. Bio char with 500 m2/g surface area and particle size of 0.5-1.0 mm was used at a loading rate of 2.5 g/L and treatment time of 40 hours. The changes in the sewage physicochemical parameters which included biological oxygen demand (BOD), chemical oxygen demand (COD), total phosphates (TP), total solids (TS) and total Kjeldahl nitrogen (TKN) and were measured using standard methods. Upon subjecting the sewage water to the bio char, a reduction of 94%, 90%, 80%, 83% and 82% were observed for the BOD, COD, TP, TS and TKN respectively. The sewage pH also changed from alkaline to neutral. The observed results indicated that sewage sludge bio char can effectively treat sewage wastewater.

Original languageEnglish
Pages (from-to)44-50
Number of pages7
JournalProceedings of the International Conference on Industrial Engineering and Operations Management
Issue numberSEP
Publication statusPublished - 2018
Event3rd North American IEOM Conference. IEOM 2018 -
Duration: 27 Sept 201829 Sept 2018


  • Bio char
  • Bio contaminants
  • Sewage sludge
  • Wastewater treatment

ASJC Scopus subject areas

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


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