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WATER-ENERGY NEXUS in JAPAN
Water Resources Department, Ministry of
Land, Infrastructure, Transport and Tourism (MLIT), JA...
Water Resources Management in Japan
Precipitation

降水

Environmental
環境保全
conservation

Conservation of
水源地保全
Upstream
水道原...
Water Resources Development in Japan
■Since 1950

■Metropolitan area
○Sharp increase in water demand
○ Serious water short...
Basic Plan for Water Resources Development
Water Resources Department of MLIT : Secretariat of National Land Development C...
Basic Plan for Water Resources Development
Description of basic plan
1) Prospect for water demand & Supply target for diff...
Promote Low Head Hydro Power Generation and Utilize Sewage Resources
○Due to the tight condition of energy supply and prog...
Promote Low Head Hydro Power Generation and Utilize Sewage Resources
Utilization of sewage resource energy
 Improve self ...
We are looking forward to seeing you
at UNU Headquarter in Tokyo, Japan in March 2014

Photos from Japan Water Week Photo ...
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The Water-Energy nexus in Japan, by Hisaya Sawano, Government of Japan

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Presentation on the Water-Energy nexus in Japan, by Hisaya Sawano, Government of Japan at 2014 UN-Water Annual International Zaragoza Conference. Preparing for World Water Day 2014: Partnerships for improving water and energy access, efficiency and sustainability. 13-16 January 2014

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The Water-Energy nexus in Japan, by Hisaya Sawano, Government of Japan

  1. 1. WATER-ENERGY NEXUS in JAPAN Water Resources Department, Ministry of Land, Infrastructure, Transport and Tourism (MLIT), JAPAN 0
  2. 2. Water Resources Management in Japan Precipitation 降水 Environmental 環境保全 conservation Conservation of 水源地保全 Upstream 水道原水規制 Reuse of 雑用水利用 Water 森林の保全 Hydraulic Forest Conservation電源開発 Power Regulation of Tap Water 水道水源規制 Regulation of Tap Water in catchment area Evaporation 蒸発 Development 水資源開発 of catchment 水源地域対策 Area Regulation of 地下水規制 Ground Water 工業用水規制 Regulation for Paddy Field 水田の保全 Conservation ビル用水規制 Industrial 貯水 Impoundment Water 河川管理 River Sewage 下水道事業 Environmental 水面の確保 Flow 緑地整備 Afforestation System Conservatio 水質保全 n of Water Irrigation Water Use 農業用水利用 水質保全 Regulation for Management Conservation of Water Water Buildings of Quality Industrial Water 工業用水利用 Tap Water 水道事業 Penetration 浸透 Supply Quality Discharge to River 河川流出 Sound water cycle 水循環系の健全化 Water Usage 水利用 Water Treatment 水処理 1
  3. 3. Water Resources Development in Japan ■Since 1950 ■Metropolitan area ○Sharp increase in water demand ○ Serious water shortage ○Securing stable water supply ○Comprehensive/efficient development of river systems ○Rapid funding 130,000 120,000 Population (thousands of people) ○Industrial development ○Rapid increase / concentration of urban population ○Improved living standards ○ Population changes 人 口 ( 千 人 ) 110,000 100,000 90,000 80,000 Rapid increase / concentration of urban population 70,000 60,000 50,000 1940 1947 1950 1955 1960 1965 1970 1975 1980 1985 1990 ○Changes in water consumption 18 16 Water Resources Development Promotion Law • • • • Established in 1961 Basis for rational development & utilization of water resources Designation of strategic river basins (cross prefectures) National government makes a water use plan for strategic river basins in order to facilitate the consensus among stakeholders 使用量(10億m3/年) (billion ㎥/year) 14 12 10 Sharp increase in water demand 水需要の激増 8 6 4 2 0 1940 1950 1960 1970 1980 1990 2000 2
  4. 4. Basic Plan for Water Resources Development Water Resources Department of MLIT : Secretariat of National Land Development Council subcommittee meetings on water resources development, Formulation of original plan, Conducting basic surveys [Investigation Item] Formulation of original plan Supply area in the target year Deliberation by National Land Development Council Estimation of demand in the target year Supply target in the year subcommittee meetings on water resources development Barrage Purification Plant (Planning) Farmland Irrigation Water Purification Plant Industrial water Plants River Buildings Houses Drinking water Formulation of draft plan Discussion among related ministries Supply Area Dam Inquiry session among related prefectures Basic surveys Dam Cabinet approval Ocean Decision by Minister of Land, Infrastructure, Transportation and Tourism 3
  5. 5. Basic Plan for Water Resources Development Description of basic plan 1) Prospect for water demand & Supply target for different uses 2) Basic matters for the construction of necessary facilities to achieve supply target 3) Other important matters for rational and comprehensive development & utilization of water resources Ocean 4
  6. 6. Promote Low Head Hydro Power Generation and Utilize Sewage Resources ○Due to the tight condition of energy supply and progress of global warming, there is a growing demand for energy saving and utilization of renewable energies ○Low head hydro power generation and use of sewage resources are promoted toward low-carbon society Promote low head hydropower generation Power generation for dam management Use of sand control dam Hydro power station Small hydro power plant Electric power generation facility Hydro power generation facility Use of agricultural water supply facilities Small hydro power facility 5
  7. 7. Promote Low Head Hydro Power Generation and Utilize Sewage Resources Utilization of sewage resource energy  Improve self energy supply rate utilizing the energy the sewage has  Formulate energy supply bases by intensive treatment of biomass generated in the region  Utilize sewage heat by utilizing sewage conduit network in the city  Promote collection of phosphorus from sewage and sewage sludge Improve management of the sewage business Return the benefit to the local community Contribution to the global warming preventive measures Secure phosphorus resources Innovative sewage technology demonstration project Solid fuel facility Applying resin material (nonwoven fabric) that maintains high density fungus inside the digestion tank Latest bio technology Sewage treatment plant Phosphorus collection facility Methane fermentation facility 6 <Copper digestion tank>
  8. 8. We are looking forward to seeing you at UNU Headquarter in Tokyo, Japan in March 2014 Photos from Japan Water Week Photo Awards 2013 7

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