Physicochemical changes in windrow co-composting process of oil palm mesocarp fiber and palm oil mill effluent anaerobic sludge

Physicochemical changes in windrow co-composting process of oil palm mesocarp fiber and palm oil mill effluent anaerobic sludge

The objective of this study is to investigate the characteristics and physicochemical changes in windrow co-composting process of oil palm mesocarp fiber (OPMF) and palm oil mill effluent(POME) anaerobic sludge at pilot scale. The addition of POME anaerobic sludge as a nutrient source and microbial...

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Bibliographic Details
Main Authors: Lim, Siong Hock, Samsu Baharuddin, Azhari, Ahmad, Mohd Najib, Md. Shah, Umi Kalsom, Abdul Rahman, Nor'aini, Abd. Aziz, Suraini, Hassan, Mohd Ali, Shirai, Yoshihito
Format: Article
Language:English
Published: American-Eurasian Network for Scientific Information 2009
Online Access:http://psasir.upm.edu.my/id/eprint/16205/1/Physicochemical%20changes%20in%20windrow%20co.pdf
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Summary:The objective of this study is to investigate the characteristics and physicochemical changes in windrow co-composting process of oil palm mesocarp fiber (OPMF) and palm oil mill effluent(POME) anaerobic sludge at pilot scale. The addition of POME anaerobic sludge as a nutrient source and microbial seeding into the OPMF compost led to the prolonged of thermophillic condition (50– 68°C) until day 39 of treatment. The pH value was remained stable (6.8-7.8) throughout the process whereas the moisture content was reduced towards the end of treatment with final moisture content around 50%. The final matured compost was achieved within 50 days with C/N ratio of 12.6. In addition, considerable amount of nutrients and low level of heavy metals were detected in the final matured compost. The results is indicated that windrow co-composting of OPMF and POME anaerobic sludge could produce acceptable quality of compost that can be used as fertilizer or soil amendment.

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