The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

Integrated Urban Water Cycle
Management System in Korea
Jin Chul Joo, PhD
Research Fellow
Korea Institute of Construction Technology

Any Problems in Conventional City?
Urbanization
Urbanization side
side effecteffect 48% of total area in Seoul-> impermeable pavement

Pavement area
Green area

 73% of urban area in Seoul-> Urban Desert

Heatarrea
Heat islandisland inin urban
urban areaarea
 Temp. difference between urban
and rural area of Seoul- Summer : 1~4 Celsius- Winter : 2~8 CelsiusAsian River Restoration Network (ARRN)

http://www.a-rr.net/Surface temperature distribution on 1987 and 2003 inSeoul

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

Any Problems in Urban Water
Management?
To be

As is

As is

• Repeated disasters (flooding, draught etc.)• Limited usage for gray water and rainwater• Small scale individual permeation andreservoir facilities• Absence of integrated water management system• No disasters by early warning and preparation• Best use of rainwater/wastewater• Large scale network permeation & reservoir facilitie• Construction of integrated urban water cycle
management system

Scheme of Integrated Urban Water Cycle
Natural Water Cycle

Urban Water Cycle

Stormwater
Surface water
CSO

External supplyUrban water

WTP

Infiltration
Advancedtreatment
systemReuse

Infiltration,
undercurrent
and treatment
facility

Treatment
facility

graywater
Undercurrent tankfor irrigation

Wide-area
dualdistribution
systemInfiltration

Graywater
Undercurrent
tank

Groundwater

Discharge

Rain fall

outflow

EcologicalStream

Integrated Urban Water Cycle

Filtration
Overflow

Gardening
Cleaning
Washing
Flushing
Cooling

Supply for
healthy river

Infiltration/
outflowRiver or Lake

Asian River Restoration Network (ARRN)

http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

Driving forces for U-Urban Water Cycle
Development
Development ofof Geomatics
Geomatics
 Advance in GIS/RS/GPS Technology-> 3-D Environmental System can be monitored Satelite Ecology, LiDAR, Surface Scanning-> Realtime 3-D City monitoring

Emerging
Emerging USN
USN && Sensor
Sensor Advance in USN, U-IT based Technology-> Realtime data transfer and response Newly-developed cutting-edge sensor-> Realtime monitoring for water, energy,climate, etc.

Composition of U-Urban Water Cycle
Integrated Urban Water Cycle Management System
Monitoring and network
Wide-area dual distribution system
Enhancement of natural andurban water cycle sustainability

Urban water management system
Decentralised rainwater management system

Urban water cycle
management

Natural water cycle
management

Decentralised rainwaterIntergrated water cycle
management system

Urban water
management

management

Wide-area dual distribution system

TMS
Ecological stream and lake supply
Asian River Restoration Network (ARRN)

http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

U-Urban Water Management System
U-Urban water management
Evaluation ofSustainablity

 Monitoring Water Quantity /Quality
 Construction of Data Base Decision-making Tool

WatershedModeling

Sensing NetworkManaging
server

D/B
serverSMS
serverFacility Management

RACK
ALARM Logging

UPS(5KVA)

Terminal
serverUSN Sensors
Decentralised rainwater

Gray water
Eco lake and river

Urban supply water
TMS

U-Wide Area Dual Distribution System(Prototype) Site : wastewater treatment system in Paju city Treatment Process : Membrane + Ozone + UV (+RO)
 Input Water : Treated Wastewater+rainwater Application : flushing water, road-cleansing water,eco-lake and –river supply water䞮䞮㑮㑮㻮㻮ⰂⰂ㑮㑮OἶOἶ☚☚㻮㻮ⰂⰂ㑮㑮PPキキⶒⶒ☚㔲㣿㑮Ṳ⼚ 㰧㑮V㩖⮮㔲㍺㑮㥚┺㭧 㑮㤦⼚㑮㻮Ⰲ j

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Asian River Restoration Network (ARRN)㫆ἓ㣿㑮㑮㰞Ⱒ㫇㡂⿖㟧䢎

OjvkSGzzSG{uSG{wP㥶⨟㑮㰞Ⱒ㫇㡂⿖㟧䢎㥶⨟䂲㑮㣿㑮㭧㑮 㩖⮮㔲㍺㌳䌲㥶㰖㣿㑮㌳䌲䢎㑮

㌳䌲㥶㰖㣿㑮O㌳䌲ⶒ₎V㌳䌲䢎㑮P㑮㥚䂲㑮㣿㑮O㧎㼊㩧㽟P㫆ἓV䢪㧻㔺V㼃㏢㣿㑮

http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

U-Wide Area Dual Distribution System(Pilot Plant)
WTP

ScreenRainwater Storing Tank

Pilot Plant System

In-line mixer

UltraFiltration

RO
Reservoir Tank

Ozone + UV

U-Wide Area Dual Distribution System(Web-based Management System)
Selection ofTreatment
processes

Web-basedManagementReport &Warning message

㩅㍌ 䞐㟝ὤ㨴␴⽸ 㝘㵜 ofSimulation
ⵐ㈑ 㐐 ᷱḔ
AvailableSites

Decision-making
Tools

Analysis of
Water Balance
Realtime
Monitoring
Asian River Restoration Network (ARRN)

Simulation of
Available Site
http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

U-Lake and River Management System(Prototype)
CDMA/Wibro/Wifi

Data Collection
Realtime Monitoring
Integration
Statistical Analysis

Data Logger

Information Service
U-lake and river management
gementgement systememenyLake (Bucheon city)

ControlRiver (Goyang city)

Monitoring
GoodIndex range
82

Monitoring

Prediction

Warning

Guidelines

U-Lake and River Management System(Pilot Plant)
 Site : Bucheon City / Goyang City Equipment : rainfall meter, water guage,
multiprobe water quality sensor(SS, pH, EC, Temp, DO, Chl-a), flow meter,
autosampler, T-N, T-P

River Measurement

Lake Measurement

Rainfall Meter

Water Quality Sensor

TN-TP Equipment

24-hr Auto sampler

Asian River Restoration Network (ARRN)

Water Guage

Control & Communication
http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

U-Lake and River Management System(Web-based Management System)
Web-based Management

Outlines of Management System

Report &Message SMS

Warning Service
For E-coli, toxic
chemicals inaquatic ecology
Realtime Monitoring

Prediction of Water Quality
Qualiity

Prediction ofWater Quality(WASP &MeteorologicalDB)
Analysis ofWater Balance

U-Decentralized Rainwater Management
System (Prototype)

RoofRoof-top
gardening

Settling Tank
Comprehensive
rainwater Tank

Asian River Restoration Network (ARRN)

Green infiltration
facility

Infiltration
undercurrent
tank

Undercurrent
facility
http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

U-Decentralized Rainwater Management
System (Pilot Plant)• Green Infiltration Facilities• Roof-Top Gardening

U-Decentralized Rainwater Management
System (Web-based Management System)• Realtime Monitoring Data Base

• Decision-Making Tool

Asian River Restoration Network (ARRN)

http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

U-Urban Water Management System(Web-based Management System) Major Functions
 Evaluation of Water Sustainability• reduced amount of water supply• increased amount of water reuse• reduced amounts of surface runoff and contaminants

 Realtime Monitoring of Water Quality & Quantity
 U-service & two-way interactive response

Case Study :Incheon Free Economic Zone (Chungra city)|G~tz|~Gz~yyVs

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y~tzj
http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

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http://www.a-rr.net/The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

Conclusions (1)Benefits of integrated water cycle management systemRestoration of natural water cycle w/o too much uptake;Saving the urban water demand and cost;Improvement of nonpoint source treatment after the urbandevelopment;
Reducing the air-conditioning energy and rain water runoff using thedistributed rain water management system;
Assurance of enough ecological area;

Conclusions (2)Benefits of integrated water cycle management systemImprovements of distribution for urban water supply;

Assurance of safe water usage by predicting demand;Improvement of environmental awareness and life amenity byusing gray and rainwater;

Construction of safe city against water-related disasters byproviding the web-based water cycle information andmanagement;

Restoration of the sustainability of water cycle for the conventional
city by managing the distributed urban water management;

Asian River Restoration Network (ARRN)

http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

Thank you for your attention!

Asian River Restoration Network (ARRN)

http://www.a-rr.net/