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 language | English |
|---|---|
| Pages (from-to) | 2519-2525 |
| Number of pages | 7 |
| Journal | Proceedings of the International Conference on Industrial Engineering and Operations Management |
| Volume | 2018 |
| Issue number | JUL |
| Publication status | Published - 2018 |
| Event | 2nd European International Conference on Industrial Engineering and Operations Management.IEOM 2018 - Duration: 26 Jul 2018 → 27 Jul 2018 |
Keywords
- Anaerobic digestate
- Biogas
- Biosolids
- NPK
- Renewable energy
- Tea waste
- Waste management
ASJC Scopus subject areas
- Strategy and Management
- Management Science and Operations Research
- Control and Systems Engineering
- Industrial and Manufacturing Engineering
