Transcript PowerPoint 프레젠테이션

Rainwater Harvesting
System Tour Guide
Map
Multipurpose
Rainwater Management
Everybody happy
Capacit
3,000ton (1,000ton×3 tanks)
y
1) Flood control
Desired 2) Water saving (gardening, toilet
effect
flushing)
3) Emergency use
Water management
at
2
1
3
4
5
1 : Complex A roof catchment2 : Complex B machine room below the ground
3 : Filter room 4 : Sprinkler test operation5 : Complex C Monitoring room

For
Flood
Control
For
Water
Saving
For
Emergenc
y
If we harvest rainwater, we can get the multipurposes such as mitigation of flooding, water
conservation, and using for emergency. This
trial for using rainwater can bring benefits of you,
me and us.
By decreasing the amount of water supply from
Han river, environment can be better. In
addition, global warming can be prevented due
to less energy needed to convey water.
‘Happy water management’ can be realized by
the waffle water management which is
managed by the decentralized water system in
each small district.
Starcity was approved as successful case
of rainwater harvesting system
- 2010 IWA Project Innovation Award
- Starcity is selected as a cover story on
academic journal Water21(2008. 12 issue) of
IWA(international water association)

The media such as KBS, MBC, SBS, NHK,
Jungang, Chosun, Dong-a,and Hankyoreh
cover Starcity's excellence as rainwater
harvesting system. (press release can be
found on Blog :
http://blog.daum.net/drrainwater)

Many experts around the world
- 2008.10 international tube association
visit
(chairman Robert Virgon) visit
- 2010. 10 experts from Malaysia and Singapore
visit
- 2012.03 Ministry of Land, Infrastructure,
Transport and Tourism manager of Japan visit
Rain for all
Seoul National
University rainwater
research center
IWA (International Water Association)
academic journal Water21 (2008.12 issue)
Starcity
community
center
(02-2024-7117)
Seoul National
University
Rainwater research
center
Scale
use
Jayang-dong Gwangjin-gu
Seoul
Land area : 62,500 ㎡
Roof area : 16,867 ㎡
3 stories below the ground35/45/50/58 Stories above the
ground – a total of 4 buildings
Residential and Commercial
Complex
Constructi
2003. 10 ~ 2007. 03
on period

Increasing flooding risk of surrounding
area due to development of Konkuk
university baseball ground – necessity of
flood prevention facility

Amount of rainwater use and Utilization
ratio
50
100%
accumulative use(㎥)
accumulative ratio(%)
40
30
60%
20
40%
10
20%
0
0%
1
5
6
7
8
9
Water saving``
storage tanks
depending on water
quality
10 11 12
Prevention
Monitoring system and
management to prevent
regional flood
Water quality(NTU)
Solution to urban flooding problems
1.5

Public water bill of about 0.2$/m per
household
<PLC system>
4
 In 2007 water saving of 40,000t
energy saving of 10,000KWH

PLC (Programble Logic
Control) system with
Information Technology
3
Water
quality
management
Installation of rainwater
Emergency use
 Rainwater utilization ratio(=amount of
rainwater use/ total rainfall) reaching
65% with water cycle system
2.5
No runoff of rainwater
until first 100mm in the
complex
2
Multipurpose
rainwater
flood use
mitigation
Month (2007)
Gwangjin-gu office suggests additional
floor area ratio of 3% for Incentive of
rainwater harvesting system
Features
of the

Emergency water
of 1,000t available all
the time
design
80%
Accumulative utilization
ratio(%)
location
Operation result
Accumulative use (1000㎥
)
Starcity Profile
Innovative
rainwater
harvesting system
Below 2 NTU

NTU
2

1
0.5
0
0
20
40
60

Monitoring period (day)
 NTU meets greywater quality standard

 Rainwater storage tank designed to have a
function of sedimentation tank
 Conditions for stagnant water to decay
-Organic matter + inorganic matter +
sunlight

Incentive
program
Promotion of
rainwater harvesting
system for win-win
policy
Tap water being replaced with rainwater,
prevention of flood and fire, and energy saving
can be done by utilizing rainwater.
After being approved as a successful case,
Starcity project provides a chance to legislate
for seoulcity eco-friendly architecture
ordinance.
Seoul city provides subsides, maximum ten
million won for rainwater harvesting
<Reference>
system.(contact:
02-3707-9574)
Han, Moo-Young, Mun, Jung-Soo An
Economical Analysis of the Rainwater
Harvesting(RWH) System at the S Residential
and Commercial Complex journal of the
architectural institute of Korea planning &
design 25(12),173-181
M.Y. Han, J.S. Mun, Operational data of the Star
City rainwater harvesting system and its role as
a climate change adaptation and a social