Co-composting of palm oil wastewater sludge and biosolids
The present study deals with the co-composting of palm oil wastewater sludge (OS) and biosolids (BS) as a possible environmental friendly alternative to handle these wastes. Five laboratory scale composters, each containing 5 kg soil spiked with 10 % OS (mass basis) were used. Shredded empty fruit b...
| Main Authors: | , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
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2005
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| Online Access: | http://scholars.utp.edu.my/id/eprint/1895/ http://scholars.utp.edu.my/id/eprint/1895/1/Co-composting_of_palm_oil_wastewater_sludge_and_biosolids.pdf |
| _version_ | 1848659182840971264 |
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| author | Al-Madhoun, W.A. Jabieng, S.A. Isa, M.H. Asaari , F.A.H. Aziz, H.A. Farooqi, I.H. |
| author_facet | Al-Madhoun, W.A. Jabieng, S.A. Isa, M.H. Asaari , F.A.H. Aziz, H.A. Farooqi, I.H. |
| author_sort | Al-Madhoun, W.A. |
| building | UTP Institutional Repository |
| collection | Online Access |
| description | The present study deals with the co-composting of palm oil wastewater sludge (OS) and biosolids (BS) as a possible environmental friendly alternative to handle these wastes. Five laboratory scale composters, each containing 5 kg soil spiked with 10 % OS (mass basis) were used. Shredded empty fruit bunches (EFB) was used as bulking agent. The EFB to soil ratio for each composter was 1:2 (v/v). The carbon-to-nitrogen (C/N) and carbon-to-phosphorus (C/P) ratios were adjusted to 20:1 and 800:1 by adding urea (H2NCONH2) and potassium dihydrogen phosphate (KH2PO4) respectively to the composting mixture. The ratio of BS : (soil + OS) was varied as 0.0:1.0, 0.1:1.0, 0.5:1.0, 0.7:1.0 and 1.0:1.0. The moisture content was adjusted to 20 % and the experiment was conducted at room temperature. The results showed enhanced biodegradation due to biosolids addition. The optimum BS : (soil + OS) ratio was found to be 0.1:1 at which the oil and grease removal reached 86 % in the six week experimental duration. The experiment demonstrated the feasibility of composting at low temperatures (25-26 °C) and also pointed out that depending on the type of materials used it may not always be possible to adjust high levels of moisture content in composting piles. |
| first_indexed | 2025-11-13T07:26:22Z |
| format | Conference or Workshop Item |
| id | oai:scholars.utp.edu.my:1895 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:26:22Z |
| publishDate | 2005 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:scholars.utp.edu.my:18952017-01-19T08:27:29Z http://scholars.utp.edu.my/id/eprint/1895/ Co-composting of palm oil wastewater sludge and biosolids Al-Madhoun, W.A. Jabieng, S.A. Isa, M.H. Asaari , F.A.H. Aziz, H.A. Farooqi, I.H. TD Environmental technology. Sanitary engineering The present study deals with the co-composting of palm oil wastewater sludge (OS) and biosolids (BS) as a possible environmental friendly alternative to handle these wastes. Five laboratory scale composters, each containing 5 kg soil spiked with 10 % OS (mass basis) were used. Shredded empty fruit bunches (EFB) was used as bulking agent. The EFB to soil ratio for each composter was 1:2 (v/v). The carbon-to-nitrogen (C/N) and carbon-to-phosphorus (C/P) ratios were adjusted to 20:1 and 800:1 by adding urea (H2NCONH2) and potassium dihydrogen phosphate (KH2PO4) respectively to the composting mixture. The ratio of BS : (soil + OS) was varied as 0.0:1.0, 0.1:1.0, 0.5:1.0, 0.7:1.0 and 1.0:1.0. The moisture content was adjusted to 20 % and the experiment was conducted at room temperature. The results showed enhanced biodegradation due to biosolids addition. The optimum BS : (soil + OS) ratio was found to be 0.1:1 at which the oil and grease removal reached 86 % in the six week experimental duration. The experiment demonstrated the feasibility of composting at low temperatures (25-26 °C) and also pointed out that depending on the type of materials used it may not always be possible to adjust high levels of moisture content in composting piles. 2005-05 Conference or Workshop Item PeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/1895/1/Co-composting_of_palm_oil_wastewater_sludge_and_biosolids.pdf Al-Madhoun, W.A. and Jabieng, S.A. and Isa, M.H. and Asaari , F.A.H. and Aziz, H.A. and Farooqi, I.H. (2005) Co-composting of palm oil wastewater sludge and biosolids. In: International Conference – Water : Values & Rights, Palestine Academy for Science and Technology and Palestinian Water Authority, Palestine, May, 2005, Palestine. |
| spellingShingle | TD Environmental technology. Sanitary engineering Al-Madhoun, W.A. Jabieng, S.A. Isa, M.H. Asaari , F.A.H. Aziz, H.A. Farooqi, I.H. Co-composting of palm oil wastewater sludge and biosolids |
| title | Co-composting of palm oil wastewater sludge and biosolids |
| title_full | Co-composting of palm oil wastewater sludge and biosolids |
| title_fullStr | Co-composting of palm oil wastewater sludge and biosolids |
| title_full_unstemmed | Co-composting of palm oil wastewater sludge and biosolids |
| title_short | Co-composting of palm oil wastewater sludge and biosolids |
| title_sort | co-composting of palm oil wastewater sludge and biosolids |
| topic | TD Environmental technology. Sanitary engineering |
| url | http://scholars.utp.edu.my/id/eprint/1895/ http://scholars.utp.edu.my/id/eprint/1895/1/Co-composting_of_palm_oil_wastewater_sludge_and_biosolids.pdf |