Composting of Market Waste using Bio-Decomposer

Abstract

This work presents a study on the composting of market waste by using bio-decomposers, which are effective microorganisms (EM), indigenous microorganisms (IMO), and bokashi to compost the market waste. To investigate the effect of different bio-decomposers on the waste composting period in terms of the compost quality (pH, temperature, moisture content, and carbon to nitrogen ratio (C/N)) and also to investigate the nutrients content such as nitrogen (N), phosphorus (P), and potassium (K) in the compost. The compost has been prepared from different mixtures of market waste for 36 days. Market waste with IMO in bin B shows a good result in compost, where the temperature recorded was 28 °C and the pH was 8. The moisture content ranged between 50% and 60% in day 30 and showed the lowest C/N ratio, which was 7:1 and achieved the first maturity phase compared to other bins. The highest nitrogen, potassium, and phosphorus also resulted in compost with IMO, which were 2.3%, 5.2 mg/l, and 1.62 mg/l, respectively. The result showed that compost quality for IMO as a bio-decomposer was superior compared to EM, bokashi, and compost without a bio-decomposer because IMO compost is more effective at breaking down organic matter.