Safe summary

4. • 2,000 – 4,000kcal/kg
• Use as Fuel for Thermal
Power Plant
SLUDGE TO ENERGY
MUNICIPAL WASTE
TO ENERGY
• Prevent Soil Pollution
• No Land Fill
• Producing High Quality of Feed
FOOD WASTE
RECYCLING
UPGRADING LOW
RANK COAL
High Efficiency Drying Technology
• No Landfill
• Producing High Calorific Value of
RDF
• Low-rank Coal is Converted to a
High-rank Coal
• 3,500kcal/kg → 5,500kcal/kg

5. Household
Sewage Treatment
Plant Treated water
Dryied SludgeSewage Sludge
(8000Tons/day in Korea)
Alternative Fuel
At Thermal Power Plant
SAFE System Plant in Seoul
(Capacity 1,000tons/day)
According to the 1996 protocol to
the London Convention, dumping
The sludge to the ocean
is no more allowed.

8. High Viscous sludgeHigh Viscous sludge Equipment abrasion and Reduced lifeEquipment abrasion and Reduced life

11. ● Simple and safe operation
● Rotary kiln equipped with the cutting blade
Intake sludge
Sludge storage
tank
Odor intake
blower
Air pre-
Heater
Hot Air
generatorLNG
Dryer
Blower
Odor
treatment
Cyclone dust
collector
Bag filter
Products Storage tank
Air flow
Sludge
20%D.S
90%D.S

12. ● Combined Direct and Indirect drying system
● The malodor is used for combustion air
Intake sludge
Sludge storage
tank
Odor intake
blower
Air pre-
Heater
Hot Air
generatorLNG
2nd Dryer
Blower
Odor
treatment
Cyclone dust
collector
Bag filter
Products Storage tank
Air flow
Sludge
1st Dryer Heat exchangerSTEAM
20%D.S
90%D.S
35%D.S

13. ● Combined Direct and Electro-dewatering system
● LNG (or LPG) saving is possible
Intake sludge
Sludge storage
tank
Odor intake
blower
Air pre-
Heater
Hot Air
generatorLPG
Dryer
Blower
Odor
treatment
Cyclone dust
collector
Bag filter
Products Storage tank
Air flow
Sludge
20%D.S
90%D.S
35%D.S

18. Export day
Supply
(tons)
LHV
(kcal/kg)
Unit Price
(USD)
Amount
(USD)
9~15 402 2,692 9 3,650
16~29 1,955 3,101 23 4,440
1~15 1,712 3,294 23 38,900
16~31 2,021 3,581 27 55,130
1~15 1,756 3,342 23 39,910
16~30 1,939 3,148 23 44,080
1~15 2,012 3,110 23 45,730
16~31 1,552 2,990 18 28,210
1~15 2,195 2,991 18 39,910
16~30 2,352 2,875 14 32,070
17,896 332,040

24. ※ SUDOKWON Landfill Site Sewage Sludge Recycling Facility(2nd) Construction
※ 141,009,000,000kcal÷860kcal/kW÷1,000kW/MW×0.4(efficency )=66,586MWH(≒11MW in 2012)
Repoted by KOREA WESTERN POWER CO., Ltd.
Energy recovery 94%
11Mw power generation effects
※ 7Gcal/hr × 24hr/day × 22day/month × 12month/year = 42,336 Gcal/year
Energy recovery 123%