Role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using UASB reactor

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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Main Authors: Anwar, Ahmad, Ghufran, Rumana, Zularisam, A. W.
Format: Article
Language:English
Published: Elsevier Ltd 2011
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/24776/
http://umpir.ump.edu.my/id/eprint/24776/
http://umpir.ump.edu.my/id/eprint/24776/
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
id ump-24776
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spelling ump-247762019-06-12T03:56:22Z 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 https://doi.org/10.1016/j.jhazmat.2011.10.008 https://doi.org/10.1016/j.jhazmat.2011.10.008
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TA Engineering (General). Civil engineering (General)
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
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.
format Article
author Anwar, Ahmad
Ghufran, Rumana
Zularisam, A. W.
author_facet Anwar, Ahmad
Ghufran, Rumana
Zularisam, A. W.
author_sort Anwar, Ahmad
title 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_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_sort role of calcium oxide in sludge granulation and methanogenesis for the treatment of palm oil mill effluent using uasb reactor
publisher Elsevier Ltd
publishDate 2011
url http://umpir.ump.edu.my/id/eprint/24776/
http://umpir.ump.edu.my/id/eprint/24776/
http://umpir.ump.edu.my/id/eprint/24776/
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
first_indexed 2023-09-18T22:37:42Z
last_indexed 2023-09-18T22:37:42Z
_version_ 1777416706375811072

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