Thermophilic anaerobic digestion of palm oil mill effluent
A laboratory study was carried out using the thermophilic anaerobic process to treat palm oil mill effluent containing 67,000 mg 1-1, COD, 31,800 mg 1-1 suspended solids and a pH of 4.5. Completely mixed reactors were operated to evaluate the effects of feed strength and solids retention times on th...
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| Main Authors: | , |
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| Format: | Article |
| Language: | en |
| Published: |
Pergamon Press
1983
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| Online Access: | http://psasir.upm.edu.my/id/eprint/116741/1/116741.pdf http://psasir.upm.edu.my/id/eprint/116741/ https://linkinghub.elsevier.com/retrieve/pii/0043135483900398 |
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| Summary: | A laboratory study was carried out using the thermophilic anaerobic process to treat palm oil mill effluent containing 67,000 mg 1-1, COD, 31,800 mg 1-1 suspended solids and a pH of 4.5. Completely mixed reactors were operated to evaluate the effects of feed strength and solids retention times on the system's performance. A range of 5-35 days solids retention time was studied. COD reduction was 72% for the 5-day unit and greater than 90% for units having detention time 15 days or more. pH of all units was self adjusted to 7.4. Gas production was, in general, greater than 0.3 m3 kg-1 volatile solids feed. |
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