Strategies to Promote Biogas Generation and Utilisation from Palm Oil Mill Effluent

被引:0
作者
Steve Z. Y. Foong
Mei Fong Chong
Denny K. S. Ng
机构
[1] University of Nottingham Malaysia,Department of Chemical and Environmental Engineering
[2] Heriot-Watt University Malaysia,School of Engineering and Physical Sciences
[3] DIA-Chemical Sdn Bhd,undefined
来源
Process Integration and Optimization for Sustainability | 2021年 / 5卷
关键词
Anaerobic digestion; Compressed biomethane; Process systems engineering; Process synthesis; Mathematical optimisation;
D O I
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学科分类号
摘要
Palm oil mills generate a large amount of wastewater, known as palm oil mill effluent, during the production of crude palm oil. The high organic contents in palm oil mill effluent have an excellent potential for biogas utilisation. Besides, such effluent must be further treated before discharge or reused in milling processes. In this respect, an integrated biogas and wastewater treatment system should be developed. The aim of this paper is to synthesise and optimise an integrated biogas and wastewater treatment system via a process systems engineering tool that yields maximum economic performance. To illustrate the proposed approach, a typical palm oil mill case study in Malaysia is presented. The variation in palm oil mill effluent availability is considered to evaluate the changes in performance and ensuring the flexibility of the developed system. As shown in the results, implementation of integrated biogas and wastewater treatment system in a typical 60 t/h mill in Malaysia could export up to 1.9 MW electrical power on average. Alternatively, 110,800 GJ/year of compressed biomethane can be produced when feed-in to the national grid is not available. The implementation of integrated biogas and wastewater treatment system successfully reduces greenhouse gas emissions by 50,430 t CO2e/year as compared with the conventional open ponding system practiced in the industry. Lastly, feasibility studies and strategies to promote biogas utilisation in the industry are performed.
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页码:175 / 191
页数:16
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