about meiwa co., ltd
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Confidential
About Meiwa Co., Ltd.
Tokyo Ishikawa
2.5hours
A technology-oriented company developing environmental plants
Year of Incorporation: 1965 Number of staff: About 50 Location: Kanazawa City, Ishikawa Prefecture, Japan
Main business area: Environment / Agriculture / Renewable energy Main products: Biomass carbonization plant / Effluent treatment facility / Methane fermentation system / Dust collector, etc. Project partners: University of Tokyo, JICA, Ministry of Environment, etc.
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Biomass Carbonization - General
A plant that can convert biomass into charcoal (biochar).
Sludge
Food waste
Agricultural residue
Scrap wood
Carbonization plant
Water hyacinth etc.
Residual biomass Biochar
Waste management Agriculture / Environment / Energy
Soil conditioner
Natural fertilizer
Fuel
Sludge
Kitchen garbage
Water hyacinth
Agricultural residue
Animal waste
etc.
Residual biomass Carbonization plant Biochar (+wood vinegar)
Waste management Agriculture Energy Environment
• Patented • Energy- and cost-efficient • Wide range of processable ingredients
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Biochar – as fuel
Smokeless, no tree cutting, carbon neutral
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Soil microbial activity
Water retention
Nutrient (N, P, K, etc.)
Nutrient retention
Nutrient assistance
Repellent
Ideal for agriculture
Carbonization
Wood vinegar =organic acid
Biochar =porous
→Drought resilient
Cattle disease control
Biochar – as powerful soil conditioner
→ Health?
→ Livestock?
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Crop: Potato Soil: Sandy Location: Ishikawa Prefecture, Japan Conditions: Following common practice (chemical fertilizer was already applied beforehand)
With biochar amendment Without biochar amendment
*Pictures are referential purpose only.
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Biochar – voice from farmers
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First biochar example in Meru?
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Carbon box series: batch-type carbonizer
Dried biomass
in
Strategically downgraded • Simple to use • Patented • Quick (2-3days => 8hours) • Energy efficient • Smokeless • Solar powered *Pre-drying required
Fuel In
Biochar out
Deployable anywhere
Biomass carbonization – mechanism
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Where to apply?
Waste separation at landfill = unrealistic
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(Possible application for Western Kenya)
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Work in progress in Meru
Organic waste collection & screening Pre-processing (drying, briquetting, shredding, etc.)
Carbonization Agricultural experiment with Biochar and wood vinegar
(Post-processing)
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Organic waste collection
Raw material screening
Pre-processing (e.g. Drying, shredding, briquetting)
Carbonization
Biochar Wood vinegar
Agriculture Clean fuel Livestock? Repellent?
Distributors End users
Distributors End users
Distributors End users
Distributors End users
• What are major sources of raw material?
• Waste separation at source? Any incentive?
• Pollutants (heavy metals, plastics, etc.) to be avoided
• Simple and optimized methods/systems in Kenya?
Analysis, R&D, test marketing etc. to be done with partners
Key to success = various partners
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Organic waste collection
Raw material screening
Pre-processing (e.g. Drying, shredding, briquetting)
Carbonization
Biochar Wood vinegar
Agriculture Clean fuel Livestock? Repellent?
Distributors End users
Distributors End users
Distributors End users
Distributors End users
Analysis, R&D, test marketing etc. to be done with partners
• What are major sources of raw material?
• Waste separation at source? Any incentive?
• Pollutants (heavy metals, plastics, etc.) to be avoided
• Simple and optimized methods/systems in Kenya?
Key to success = various partners
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Linkage with SDGs Website dedicated to SDGs
http://meiwa-ind.co.jp/en/achieving-sdgs/
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Example 2: Combating desertification
Example 1: Climate-resilient agriculture
SDGs特設ページを新設: http://www.meiwa-ind.co.jp/en/achieving-sdgs/
Linkage with SDGs Possible interpretations
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More SDG ideas coming up…
・Woman/community empowerment? ・Poverty alleviation? ・Involving youths? ・Technology transfer?
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Rippling strategy as a Japanese SME
Meiwa Main role: Project formulation with partners, R&D, Technical transfer, Export of core parts
Local business partner Project formulation with Meiwa, Marketing, Plant operation, Local production, Maintenance, (biochar distribution)
Project owner Plant operation, biochar distribution (incl. outsourcing)
Beneficiaries / microbusiness owners of biochar distribution
Local partners are the key for the sustainable growth
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Meiwa
Local government
Local private partner
Farmers
Revenue from biochar sales
Case study in Japan - for human sludge
Human sludge processing (incl. machine operation)
Plant operation Biochar distribution
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Carbonization kiln
Waste heat from carbonization unit
Biochar storage
Stirring
Dried ingredient from drying unit
Wet ingredient input
Drying by sunlight
Drying unit Carbonization unit
Green house etc. Secondary combustion
Biomass carbonization – mechanism
Carbon hero series: continuous-type carbonizer