Contribution to international development goals
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Overseas business example
Meiwa understands there are strong needs of our technology in developing countries to bring tangible solution for various environmental issues. Below are some selected examples of our projects. Meiwa’s operational interest areas include Asia, Africa, Latin America, Small Island Developing States (SIDS) and others – basically anywhere where people and nations are eager to improve their environment.
Even though Vietnam is one of the largest rice exporters in the world, the residual biomass from rice cultivation is not sufficiently utilized. In Mekong Delta, you can often see boats fully loaded with rice husk or see them dumping the waste in the river. With Meiwa’s technology, rice husk can be used as (1) soil conditioner and fertilizer after carbonization or (2) ingredient for carbonizing wet biomass. Currently, Meiwa is conducting a joint research project with Kyushu University under the funding of Japan International Cooperation Agency (JICA) and Japan Science and Technology Agency (JST) for the latter idea. In this project, sludge from shrimp aquaculture, another cause of environmental pollution, will be carbonized with rice husk and be recycled as soil conditioner. Also, Meiwa’s methane fermentation system will be installed for power generation out of the sludge before carbonization, together with Kyushu University’s fuel cell technology. Both biomass carbonization plant and methane fermentation system will be installed by the end of 2016.
- waste management, agriculture and fishery
- rice husk and sludge
In Mongolia, households, schools and other buildings depend on low-quality coal for fuel. As the urban concentration continues, the level of PM2.5 in winter has become one of the most serious environmental issues of the country, drastically increasing the number of asthma patients. Meiwa’s carbonization technology can process the low-quality coal into non-smoke emitting coal and combustible gas both as alternative and cleaner heat source preventing air pollution and related diseases. Meiwa has signed a contract with a prominent local company in Mongolia to introduce the plants phase by phase. Separately, Meiwa is developing a project idea for public-private partnership with a UN agency to establish a model for eco-friendly school.
- air pollution, semi-coke
- low-quality coal
In most developing countries, municipal waste management has become a major problem as the result of population growth and rapid urbanization. For example, in a non-capital city in Kenya, a major municipal landfill is almost filled up and there is no promising site for constructing new landfill due to urban spralling. Meiwa suggests to target major organic waste source, such as (i) vegetable waste generated in a city market and (ii) household sludge collected by trucks to a treatment lagoon, before they are taken to landfill and mixed with plastics and other contaminants. By carbonizing (i) and (ii) on site, the amount of waste arrving at the landfill is expected to decrease significantly. Meiwa is currently trying to formulate a public-private partnership with a local government with the help of a Japanese governmental agency. If the proposal gets approved, Meiwa will commence a feasibility study in Kenya in 2017.
- municipal solid waste management, landfill, water & sanitation and agriculture
- sludge / human waste