1. CONSERVATION & IMPROVEMENT
The Siam Construction Steel Co., Ltd.
SCSC ENVIRONMENTAL
CONSERVATION & IMPROVEMENT

2. Location The Siam Construction Steel Co., Ltd. (SCSC) ,
a part of Tata Steel (Thailand) Public Co., Ltd
Locate in Map Ta Phut
Industrial Estate ,
Rayong Province ,
Thailand.
asianinfo.org

3. Production Process
SCSC
Product
Reinforcing Bar
Steel Bar

4. Environmental Improvement
The improvement that SCSC try to accomplish
Air pollution management
Wastewater management
Waste management

5. Environmental Improvement Charging/Tapping Phase
Air pollution management
2 units of Bag house filter plants.
Bag house
Melting Phase
Charging/Tapping Phase 1
Flow Rate 540,000 m3/hr
Flow Rate 694,000 m3/hr 2
Flow Rate 370,000 m3/hr
Flow Rate 580,000 m3/hr

6. Improvement for Air pollution control
Install new bag house filter plant
(Fume 2) and new natural cooler.
Benefit
Increase capacity of dust collecting.
Increase efficiency of air cooling.
Increase capacity of bag house.

7. Improvement for Air pollution control
Check and repair damage wall to
reduce dust leaking out at bag house.
Benefit
Reduce dust leaking out at bag house.
Protect water and Moisture leak into bag house.
Increase efficiency of air cooling.

8. Improvement for Air pollution control
Install new filter bag and repair venturi cone.
Benefit
Improve efficiency of dust collecting.
Reduce dust leaking from stack.
Increase efficiency purging system.

9. Improvement for Air pollution control
Coat the deck floor and wall of bag house.
Benefit
Protect water and Moisture leak into bag house.
Increase efficiency of purging system.
Increase life time of bag filter.

10. Improvement for Air pollution control
Modify chain conveyer.
Benefit
Reduce residual dust in bag house.
Reduce frequency of manual drain residual dust to floor.
Increase life time of bag filter.

11. Improvement for Air pollution control
Check and improve purging system.
Air purging process (pressure
& frequency).
Chamber gate (open & close
system).
Benefit
Increase efficiency for cleaning bag filter and extend the life of filter bags.
Increase efficiency of bag house.
Increase capacity of bag house.

12. Improvement for Air pollution control
The result of opacity analysis from CEMs.
Bag house filter 1
Bag house filter 2
mg/m3
Before modify
After modify
Note : Standard not over 240 mg/m3
Conclusion
The result of opacity analysis show after improve and modify dust opacity (emission from stack) was decrease. And the stability of bag house filter plant was increase.

13. Improvement for Air pollution control
Protection of dust spreading while unloading scrap.
Before
After
Benefit : Reduce effect from dust emission.
Note : Now SCSC planning to reduce the SO2 , NOx and CO2 emission through the conversion of heavy oil to natural gas in the reheating furnace in year 2011.

14. Environmental Improvement
The improvement that SCSC try to accomplish
Air pollution management
Wastewater management
Waste management

15. Environmental Improvement
Wastewater management
Wastewater from production process.
Raw water
Treatment plant
Production process
Wastewater treatment
Irrigation pond
Reuse
Retreatment & reuse in process
Wastewater from office.
water supply
Office & Toilet
Wastewater treatment
Drainage Water
water gutter
Reuse
(plan)

16. Improvement for wastewater management
Install filtering system at water gutter at I7
road gutter and I8 road gutter before drain to
public source.
Benefit
Reduce contaminate by dust and particle in
drainage water.
Reduce garbage and Waste leaves collected in
gutter.

17. Improvement for wastewater management
Improve all water gutter in SCSC for zero discharge water.
Benefit
Reduce drainage water to zero discharge.
Collected drainage water and reuse.

18. Improvement for wastewater management
Re-routing wastewater from scrap
yard to treatment and reuse.
Benefit
Reduce drainage water to zero discharge.
Collected drainage water and reuse.
Reduce impact of wastewater

19. Environmental Improvement
The improvement that SCSC try to accomplish
Air pollution management
Wastewater management
Waste management

20. Environmental Improvement
Waste management
Waste
Source
Management
Remark
1. Slag
EAF , LF
Recycle , Recovery
2. Scale
CCM , RM
3. EAF Dust
EAF , Bag house
Security landfill
Plan to recovery Zn
4. Sludge
Sediment tank , Sludge drying bed
Landfill
5. Scrap Dust
Scrap yard

21. Improvement for waste management
Study to use for raw material in Zn
Recovery process.
Benefit
The benefit use of natural resources worthily and
maximize value.
Reduce waste disposal by landfill or security
landfill.
Reduce Cost of waste disposal.

22. Award and Certificate Award and Certificate Year 1998 Award “ISO9001”
Year Award “ISO/IEC 17025”
Year Award “ISO14001”
Year Award “TIS/OHSAS 18001”
Year Award“Green Star Award from IEAT”
Year Award “CSR – DIW”
Year Award“Green Star Award from IEAT”

23. CSR-DIW Certificate

24. ..Thank you for attention..
ขอบคุณครับ
Kob – Khun – Krub
Mr.Parin Teerakathiti & Mr.Kritsada Wanrareun
Contact :