Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor
The granulation process in palm oil mill effluent using calcium oxide-cement kiln dust (CaO–CKD) provides an attractive and cost effective treatment option. In this study the efficiency of CaO–CKD at doses of 1.5–20 g/l was tested in batch experiments and found that 10 g of CaO/l caused the greatest...
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2011
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| Online Access: | http://umpir.ump.edu.my/id/eprint/24776/1/Role%20of%20calcium%20oxide%20in%20sludge%20granulation%20and%20methanogenesis%20for%20the%20treatment%20of%20palm%20oil%20mill%20effluent%20using%20UASB%20reactor.pdf |
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| author | Anwar, Ahmad Ghufran, Rumana Zularisam, A. W. |
| author_facet | Anwar, Ahmad Ghufran, Rumana Zularisam, A. W. |
| author_sort | Anwar, Ahmad |
| collection | UMP |
| description | The granulation process in palm oil mill effluent using calcium oxide-cement kiln dust (CaO–CKD) provides an attractive and cost effective treatment option. In this study the efficiency of CaO–CKD at doses of 1.5–20 g/l was tested in batch experiments and found that 10 g of CaO/l caused the greatest degradation of VFA, butyrate and acetate. An upflow anaerobic sludge blanket (UASB) reactor was operated continuously at 35 °C for 150 days to investigate the effect of CaO–CKD on sludge granulation and methanogenesis during start-up. The treatment of POME emphasized the influence of varying organic loading rates (OLR). Up to 94.9% of COD was removed when the reactor was fed with the 15.5–65.5 g-COD g/l at an OLR of 4.5–12.5 kg-COD/m3 d, suggesting the feasibility of using CaO in an UASB process to treat POME. The ratio of volatile solids/total solids (VS/TS) and volatile fatty acids in the anaerobic sludge in the UASB reactor decreased significantly after long-term operation due to the precipitation of calcium carbonate in the granules. Granulation and methanogenesis decreased with an increase in the influent CaO–CKD concentration. |
| first_indexed | 2024-03-06T12:32:37Z |
| format | Article |
| id | UMPir24776 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:32:37Z |
| publishDate | 2011 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | UMPir247762019-06-12T03:56:22Z http://umpir.ump.edu.my/id/eprint/24776/ Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor Anwar, Ahmad Ghufran, Rumana Zularisam, A. W. TA Engineering (General). Civil engineering (General) The granulation process in palm oil mill effluent using calcium oxide-cement kiln dust (CaO–CKD) provides an attractive and cost effective treatment option. In this study the efficiency of CaO–CKD at doses of 1.5–20 g/l was tested in batch experiments and found that 10 g of CaO/l caused the greatest degradation of VFA, butyrate and acetate. An upflow anaerobic sludge blanket (UASB) reactor was operated continuously at 35 °C for 150 days to investigate the effect of CaO–CKD on sludge granulation and methanogenesis during start-up. The treatment of POME emphasized the influence of varying organic loading rates (OLR). Up to 94.9% of COD was removed when the reactor was fed with the 15.5–65.5 g-COD g/l at an OLR of 4.5–12.5 kg-COD/m3 d, suggesting the feasibility of using CaO in an UASB process to treat POME. The ratio of volatile solids/total solids (VS/TS) and volatile fatty acids in the anaerobic sludge in the UASB reactor decreased significantly after long-term operation due to the precipitation of calcium carbonate in the granules. Granulation and methanogenesis decreased with an increase in the influent CaO–CKD concentration. Elsevier Ltd 2011 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/24776/1/Role%20of%20calcium%20oxide%20in%20sludge%20granulation%20and%20methanogenesis%20for%20the%20treatment%20of%20palm%20oil%20mill%20effluent%20using%20UASB%20reactor.pdf Anwar, Ahmad and Ghufran, Rumana and Zularisam, A. W. (2011) Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor. Journal of Hazardous Materials, 198. pp. 40-48. ISSN 0304-3894. (Published) https://doi.org/10.1016/j.jhazmat.2011.10.008 https://doi.org/10.1016/j.jhazmat.2011.10.008 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Anwar, Ahmad Ghufran, Rumana Zularisam, A. W. Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor |
| title | Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor |
| title_full | Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor |
| title_fullStr | Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor |
| title_full_unstemmed | Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor |
| title_short | Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor |
| title_sort | role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using uasb reactor |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://umpir.ump.edu.my/id/eprint/24776/1/Role%20of%20calcium%20oxide%20in%20sludge%20granulation%20and%20methanogenesis%20for%20the%20treatment%20of%20palm%20oil%20mill%20effluent%20using%20UASB%20reactor.pdf |
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