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 2014TRANSCRIPT
WATER-ENERGY NEXUS in JAPAN
1
Water Resources Department, Ministry of Land, Infrastructure, Transport and Tourism (MLIT), JAPAN
2
Water Resources Management in Japan
森林の保全
水田の保全
地下水規制
ビル用水規制
工業用水利用
農業用水利用
水道事業
雑用水利用
水面の確保緑地整備
下水道事業
環境保全
蒸発
降水
貯水
浸透
河川流出
水源地保全水道原水規制
水道水源規制 水資源開発水源地域対策
河川管理
電源開発
水質保全
水利用
水処理
水循環系の健全化
水質保全
工業用水規制
Environmental conservation
Water Usage
Water Treatment
Discharge to River
Penetration
Evaporation
Sound water cycle
Precipitation
Forest Conservation
Irrigation Water UseRiver Management
Tap Water Supply
Industrial Water
SewageSystem
Reuse of Water
Environmental Flow
Regulation of Tap Water
Regulation of Tap Water in catchment area
Development of catchment Area
HydraulicPower
Conservation of Water Quality
Regulation for Water of Buildings
Regulation for Industrial Water
Conservation of Water Quality
Conservation of Upstream
Paddy Field Conservation
Impoundment
Regulation of Ground Water
Afforestation
Water Resources Development in Japan
3
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
1940 1947 1950 1955 1960 1965 1970 1975 1980 1985 1990
人口(
千人)
■Since 1950 ○Industrial development○Rapid increase / concentration of urban population○Improved living standards
■Metropolitan area ○Sharp increase in water demand ○ Serious water shortage
○Securing stable water supply○Comprehensive/efficient development of river systems○Rapid funding
水需要の激増
0
2
4
6
8
10
12
14
16
18
1940 1950 1960 1970 1980 1990 2000
使用量(10億m3/年)
○ Population changes
○Changes in water consumption
Rapid increase / concentration of urban population
Sharp increase in water demand
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
Population (thousands of
people)(billion ㎥ /year)
Basic Plan for Water Resources Development
4
Formulation of draft plan
Cabinet approval
Deliberation by National Land Development Council
subcommittee meetings on water resources development
Decision by Minister of Land, Infrastructure, Transportation
and Tourism
Discu
ssion
amon
g related
min
istries
Inq
uiry
session
amon
g related
p
refectures
Formulation of original plan[Investigation Item]
Purification Plant
Drinking water
Dam
Ocean
River
Farmland
Buildings
Purification Plant
Industrial water
Plants
Barrage
Irrigation Water
Houses
Dam(Planning)
Supply area in the target year
Estimation of demand in the target year
Supply target in the year
Supply Area
Basic su
rveys
Water Resources Department of MLIT : Secretariat of National Land Development Council subcommittee meetings on water resources development, Formulation of original plan, Conducting basic surveys
Basic Plan for Water Resources Development
5
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
Description of basic plan
Ocean
Promote low head hydropower generation
Use of sand control dam Power generation for dam
management
Hydro power station
Hydro power generation facility
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
Use of agricultural water supply facilities
Small hydro power plant
Small hydro power facility
Electric power generation facility
6
Utilization of sewage resource energy
Innovative sewage technology demonstration project
7
Improve management of the sewage businessReturn the benefit to the local communityContribution to the global warming preventive measuresSecure phosphorus resources
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
Methane fermentation facility
Sewage treatment plant
Solid fuel facility
Phosphorus collection facility
Applying resin material (non-woven fabric) that maintains high density fungus inside the digestion tank
Latest bio technolog
y
Latest bio technolog
y
<Copper digestion tank>
Promote Low Head Hydro Power Generation and Utilize Sewage Resources
8
Photos from Japan Water Week Photo Awards 2013
We are looking forward to seeing you at UNU Headquarter in Tokyo, Japan in March 2014