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https://ptsldigital.ukm.my/jspui/handle/123456789/500128Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | Marlia Mohd Hanafiah, Dr. | - |
| dc.contributor.author | Nur Izzah Hamna Abdul Aziz (P83753) | - |
| dc.date.accessioned | 2023-10-13T09:38:44Z | - |
| dc.date.available | 2023-10-13T09:38:44Z | - |
| dc.date.issued | 2018-03-05 | - |
| dc.identifier.other | ukmvital:106259 | - |
| dc.identifier.uri | https://ptsldigital.ukm.my/jspui/handle/123456789/500128 | - |
| dc.description | Due to depletion of non-renewable resources and climate change, exploring renewable and sustainable energy sources such as biogas production from palm oil mill effluent (POME) is becoming increasingly important due to its low environmental impacts as compared to the consumption of non-renewable fossil fuel sources. In Malaysia, there is an abundant supply of organic biomass which can be converted into energy. Hence, in this study, physicochemical characteristics and biogas production of POME and other locally available substrates (i.e. goat dung (GD), chicken dung (CD), sewage sludge (SS), rice waste (RW) and fish waste (FW)) were determined. The physicochemical characteristics were assessed using laboratory based analyses, whereas the biogas production was measured using Bio-Methane Potential (BMP) test under mesophilic and anaerobic conditions for 20 consecutive days. It was found that the amount of biogas generated by RW, GD, CD, FW, POME and SS were 3509 mL, 2141 mL, 1886 mL, 1546 mL, 740 mL and 550 mL, respectively. POME has more potential and it is more feasible source for bioenergy production due to its huge supply from oil palm industry. A Life Cycle Assessment (LCA) of biogas production from POME was performed to assess its environmental performance. The cradle-to-gate LCA associated with the production of biogas by the anaerobic digestion (AD) of POME was evaluated by using ReCiPe 2016 method and SimaPro 8.5 model. It was found that the total characterization factor for human health damage by water consumption (WC) and carbon dioxide (CO2) ranges from 2.49 x 10-8 to 3.36 x 10-3 DALY per m3 of consumption and 1.45 x 10-5 to 1.42 x 10-3 DALY per kg of emission, respectively. The total characterization factor for ecosystem damage by WC, land use change (LUC) and CO2 ranges from 6.76 x 10-15 to 2.04 x 10-5 disappeared fraction of species (PDF) over time and space ((m2·year)/m3), 4.92 x 10-8 to 4.78 x 10-6 PDF over time and space ((m2·year)/m2) and 1.19 x 10-12 to 4.28 x 10-6 PDF over time and space ((m2·year)/kg), respectively. Based on the midpoint approach, the total characterization factors for WC, CO2 and LUC were 3024.59 m3, 2795.73 kg CO2-eq and 1084.89 m2a crop-eq, respectively. Plantation and mill stages dominated the environmental impact and the main contributor was fresh fruit bunch (FFB) production process, which mainly due to the fertilizer and pesticide production and application, water consumption, diesel consumption and land use activity. The biogas production stage is more environmental sustainable and able to reduce the operational emissions. Accordingly, LCA of zero discharge treatment of POME which biogas can be produced with a maximum water recycle and reuse, was conducted. The LCIA result shows the high contribution in GWP, fine particulate matter formation (PMFP) and fossil resource scarcity (FFP) at 440.32 kg CO2-eq, 2.64 x 10-3 kg PM2.5-eq and 0.15 kg oil-eq respectively. It was found that the electricity consumption from national grid was the main contributor. This study also highlights and discusses the feasibility of LCA approach on biogas production from POME as well as the opportunities and challenges from the Malaysian perspective. It can be concluded that the waste-derived biogas is a promising technology that can be used to meet the national goals for a renewable, sustainable and green source of bioenergy. LCA method applied in this study was able to identify environmental hotspots in the supply chain of biogas production from POME. Therefore, a sustainable LCA-based conceptual framework of biogas production in Malaysia has been established and proposed and can be used as a guideline for oil palm industry, particularly.,'Certification of Master's/Doctoral Thesis' is not available,Ph.D. | - |
| dc.language.iso | eng | - |
| dc.publisher | UKM, Bangi | - |
| dc.relation | Faculty of Science and Technology / Fakulti Sains dan Teknologi | - |
| dc.rights | UKM | - |
| dc.subject | Palm oil industry -- Waste disposal | - |
| dc.subject | Biogas | - |
| dc.subject | Universiti Kebangsaan Malaysia -- Dissertations | - |
| dc.subject | Dissertations, Academic -- Malaysia | - |
| dc.title | Life cycle assessment of sustainable biogas production from palm oil mill effluent (POME) and its potential environmental impact | - |
| dc.type | Theses | - |
| dc.format.pages | 192 | - |
| dc.identifier.callno | TP359.B48N835 2018 tesis | - |
| dc.identifier.barcode | 003680(2019) | - |
| Appears in Collections: | Faculty of Science and Technology / Fakulti Sains dan Teknologi | |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| ukmvital_106259+SOURCE1+SOURCE1.0.PDF Restricted Access | 1.37 MB | Adobe PDF |  View/Open |
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