Farm biogas plants, a sustainable waste to energy and bio-fertilizer opportunity for Iran

被引:17
作者
Rouhollahi, Zahra [1 ]
Ebrahimi-Nik, Mohammadali [1 ]
Ebrahimi, Seyed Hadi [2 ]
Abbaspour-Fard, Mohammad Hossein [1 ]
Zeynali, Reyhaneh [3 ]
Bayati, Mohammad Reza [1 ]
机构
[1] Ferdowsi Univ Mashhad, Fac Agr, Dept Biosyst Engn, Mashhad, Razavi Khorasan, Iran
[2] Ferdowsi Univ Mashhad, Fac Agr, Dept Anim Sci, Mashhad, Razavi Khorasan, Iran
[3] Univ Bologna, Fac Architecture & Engn, Via Zamboni 33, I-40126 Bologna, Italy
关键词
Biomethane; Bio-fertilizer; Digester; Economic feasibility; Manure; LIFE-CYCLE ASSESSMENT; ANAEROBIC-DIGESTION; MANURE BIOGAS; FUTURE; INHIBITION;
D O I
10.1016/j.jclepro.2019.119876
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Anaerobic digestion for biogas production is known as an effective way of organic waste management. However, in countries rich in fossil fuels resources, its application is very limited. The present research aimed to find whether farm biogas plant could be economic in Iran, where low price natural gas and electricity are available in the most of the regions. Capital cost, net income, internal rate of return, and return of investment of a farm biogas plant was calculated assuming three different scenarios for a 400 head dairy farm; 1) Combined heat and power biogas plant by treatment of 4,562 t y(-1) manure: power injection to the grid, and heat to be used in farm or be sold to the potential nearby clients, 2) biogas plant only for power generation by treatment of 4,562 t y(-1) manure: power injection to the grid, and 3) No power generation: Treatment of 1,200 t.y-1 for substitution of current heating and cooking fuel (liquefied petroleum gas and diesel) by biogas. The technical and economic calculations were based on biomethane potential test (BMP). The economic analysis results showed that the return of investment in all scenarios was less than 4 years. The surplus net income of the farm from digester including energy and biofertilizer production from the three scenarios were 32,000, 38,000, and 6,400 US$ per year. Overall, all three scenarios are economically feasible in Iran, if the biogas plant is constructed domestically. (C) 2019 Elsevier Ltd. All rights reserved.
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页数:7
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