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Ershad Ullah Khan, MSc Process Engineer TPS Termiska Processer AB. Arsenic poisoning . Bangladesh is experiencing the largest mass poisoning in human history, because of arsenic in the ground water. Around 80 million Bangladeshis may be affected (WHO) . Lack of electricity and safe water .
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Ershad Ullah Khan, MSc Process Engineer TPS Termiska Processer AB
Arsenic poisoning Bangladesh is experiencing the largest mass poisoning in human history, because of arsenic in the ground water. Around 80 million Bangladeshis may be affected (WHO)
Lack of electricity and safe water • 80% of the population live in rural areas. • Around 70% of them are not connected to the national grid electricity.
Decentralised energy Decentralised systems for the supply of electricity are the most appropriate solutions for rural dwellers.
The project • This project is a pilot investment in Bangladesh • Livestock and vegetable waste biogas CHP plant integrated with membrane distillation. • The purpose is to make both electricity and clean water from the same bio energy.
Biogas driven engine and membrane distillation process • Distributed power • Safe drinking water and • Fertilizer • all from one input which is manure or vegetable waste.
Biogas engine from JDEC • Small scale electricity production • Well proven technology for small scale CHP • Biogas can be used directly in the gas engine • Heat of exhaust gas is used for ground water heating • Commercially available • Technically and economically feasible
Membrane distillation technology (MD) Conventional Membrane distillation • Conventional small-scale technologies could not remove the arsenic sufficiently • Conventional large plants are not feasible for small and rural areas
Absolutely pure water • Bacteria and virus • Fertilizers and pesticides • Industrial chemicals • Arsenic
Proposed pilot project • 26 kWe biogas engine • 3 membrane distillation modules • Electric efficiency 31% • Thermal efficiency 40% • Annual electricity generation 197 MWh (540 kWh/d) • Annual water production 456,000 litres (1250 l/d) • Equipment life 10-20 yrs
Costs per capita electricity and water • Specific cost for kWh electricity $ 0.04 (28 öre) • Specific cost for per liter water $ 0.015 (11 öre)
Costs of proposed pilot project • Installation costs $ 80700 • Operation and maintenance 04 years project $ 8070
Total budget • Equipment and installation costs (demo plant), $ 84,000 • Demo plant operation and maintenance costs, $ 8,070/year for 4 years • Salary (Project leader + Advisor) $ 162,000/year for 4 years • Travel per year $ 4,000 for 4 years • Total budget, $ 780,200