Effect of initial carbon to nitrogen ratio on the degradation of oil palm empty fruit bunch with periodic addition of anaerobic palm oil mill effluent sludge

Mohd Noriznan Mokhtar, . and Mohd Ali Hassan, . and Shirai Yoshihito, . and Azni Idris, . and Muhamad Yusuf Hasan, . Effect of initial carbon to nitrogen ratio on the degradation of oil palm empty fruit bunch with periodic addition of anaerobic palm oil mill effluent sludge. pp. 2435-2449. ISSN 2231-8526

The objective of this study was to evaluate the effect of different initial carbon to nitrogen (C/N) ratios on the organic matter degradation during active co-composting of oil palm empty fruit bunch (OPEFB) and palm oil mill effluent (POME) anaerobic sludge. The initial C/N ratio was varied from 25:1 35:1 and 45:1. Co-composting was conducted by periodic addition of sludge to maintain the moisture content and enrich the compost product. The organic matter (OM) carbon to nitrogen profile and compost maturity index were analysed. The results showed that the initial C/N ratio of 35:1 was the best initial C/N ratio. In addition the C/N ratio of 35:1 gave the best OM degradation. The appropriate amount of initial C/N ratio coupled with the correct composting process parameters such as daily mixing suitable pH and moisture content improved the organic matter degradation. It reduced the composting time from 40-60 days to 30 days.

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Abstract

The objective of this study was to evaluate the effect of different initial carbon to nitrogen (C/N) ratios on the organic matter degradation during active co-composting of oil palm empty fruit bunch (OPEFB) and palm oil mill effluent (POME) anaerobic sludge. The initial C/N ratio was varied from 25:1 35:1 and 45:1. Co-composting was conducted by periodic addition of sludge to maintain the moisture content and enrich the compost product. The organic matter (OM) carbon to nitrogen profile and compost maturity index were analysed. The results showed that the initial C/N ratio of 35:1 was the best initial C/N ratio. In addition the C/N ratio of 35:1 gave the best OM degradation. The appropriate amount of initial C/N ratio coupled with the correct composting process parameters such as daily mixing suitable pH and moisture content improved the organic matter degradation. It reduced the composting time from 40-60 days to 30 days.

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Item Type:	Article
AGROVOC Term:	Oil palm
AGROVOC Term:	Palm oils
AGROVOC Term:	Pulp mill effluents
AGROVOC Term:	Anaerobic conditions
AGROVOC Term:	Sewage sludge
AGROVOC Term:	Moisture content
AGROVOC Term:	Composting
AGROVOC Term:	Organic matter content
AGROVOC Term:	Agricultural waste management
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/10130

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