Biogas and Bio solids production from tea waste through anaerobic digestion

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

Research output: Contribution to journalConference article

Abstract

This study investigated the potential to harvest biogas from tea waste as a resource recovery and waste management initiative. The tea waste was shredded to a particle size of less than 2.5 mm and anaerobically digested over a period of 30 days in 10-L digesters. The composition of biogas obtained was 60% to 65% methane with a yield of 0.2 L/g of tea waste feedstock. A reduction in the tea waste chemical oxygen demand and volatile solids composition by more than 50% indicated that optimal tea waste digestion had occurred. The tea waste digestate was rich in nitrogen (4.5%), phosphorous (0.6%), and potassium (4.6%) and could potentially be adopted as a biofertilizer. Biogas and biosolids can be generated from tea waste as a waste to resource initiative.

Original languageEnglish
Pages (from-to)2519-2525
Number of pages7
JournalProceedings of the International Conference on Industrial Engineering and Operations Management
Volume2018
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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