Water conservation in Paper Machine by modifying the existing system.

1. SPB’S APPROACH ON WATER CONSERVATION IN PAPER MACHINE – A CASE STUDY BARATHI G SRIRAM S M/s Seshasayee Paper & Boards Limited, ERODE 638 007

2. G Barathi: A Pulp & Paper Technologist from IITR and MBA (Marketing). Having experience of nearly 18 years in Paper Making Process with good analytical skill and Trouble shooting skill. Having conversant with Writing & Printing Paper with Virgin fiber and Recycled Fiber, Multilayer Kraft machine. Experienced in Project commissioning.

7. Water Usage in Paper Industry INDIAN PAPER INDUSTRIES Consumption 905.8 million m 3 Effluent discharge 695.7 million m 3 (76.8 %) Reuse 210.1 million m 3 (23.2 %)

10. Water Consumption Pattern in Indian Paper Industries FIG.2 - Water Consumption Pattern in India 41% 43% 4% 12% Cultural Paper mills Industrial Paper mills Speciality Paper mills Newsprint mills

11. Global Standard Bench Mark for Water Consumption ???? INDIA 30 Spain 40 Finland 67 Canada 40 Europe 28.66 Australia 64 United States SPECIFIC WATER CONSUMPTION m 3 /Ton of Paper COUNTRY

14. SPB’S APPROACH on Water Conservation in Paper Machine Complex

16. Water & Pulp Balance in Paper Machine # 5 complex Paper Machine # 5 300 tpd Pulp from RDH @ 4% Cy. 7500 m 3 /day 140 tpd Pulp to PM#5 @ 4% Cy. 160 tpd Pulp to PM(1-4) @ 3.5% Cy. 3500 m 3 /day 4600 m 3 /day

17. Water Balance in Paper Machine # 5 complex Paper Machine # 5 Fresh Water 2400 m 3 /day To PM(1-4) 4600 m 3 /day To ETP 2000 m 3 /day & Evaporation 200 m 3 /day To RDH 3100 m 3 /day From RDH 7500 m 3 /day

18. Water Circuit in Paper Machine # 5 complex White Water Tower Save-all feed tank Clear Filtrate tank Warm water tank Shower water tank Poly Disc Save-all Vacuum pumps Head box O/F Silo O/F Press tray water P/U Tray water Wire Pit 2 Bar 3 Bar 40 Bar 70 Bar showers 3 Bar 12 Bar showers Surface condenser Vac. Pump Deculator Compres sor Cooling Towers Vacuum Sump To Pulp mill Deculator Dec. Vac. P/p Dec. Seal Pit To Head Box Cleaning Group To Pulper Dilution, Cy. Dilution, Thick stock screen dilution, Cleaning Group Dilution, System cleaning, Vacuum pump Cooling Tower Makeup Fresh Water line WATER CIRCUIT IN PAPER MACHINE # 5

19. Water distribution before and after implementation of water conservation measures 2390 m 3 /day 2790 m 3 /day Total Consumption 50 m 3 /day 50 m 3 /day Others 200 m 3 /day 200 m 3 /day Chemicals Preparation 250 m 3 /day 250 m 3 /day Pump Sealing water NIL 300 m 3 /day Vacuum pump sealing water tank makeup Cleaner group tank makeup NIL 100 m 3 /day Deculator seal pit makeup Thick Stock Screen system dilution 1580 m 3 /day 1580 m 3 /day Surface Condenser Shower Water Tank 60 m 3 /day 60 m 3 /day Warm Water tank makeup Consistency Dilution 200 m 3 /day 200 m 3 /day Compressor Makeup All Pulper Dilution AFTER (m 3 /day) BEFORE (m 3 /day) FRESH WATER BACK WATER

22. Vacuum Cooling Tower system before implementation Vacuum Pumps Vacuum Sump Fresh Water Makeup To ETP Reuse to vacuum pumps (50%) Vacuum pump Cooling Tower

24. Vacuum Cooling Tower system after implementation Vacuum Pumps Vacuum Sump Clear Filtrate Water from White water tower To Poly Disc Save-all Excess water to Pulp mill Vacuum Pump Cooling Tower

27. Deculator Cooling Tower system Before implementation Deculator Vacuum pumps sealing Fresh Water Makeup Overflow to WW 2 Seal Pit Deculator Cooling Tower Feed to 4 th Stage Cleaner 4 th Stage Reject Tank Make up from Clear water

29. Deculator Cooling Tower system after implementation Deculator Vacuum pumps sealing Deculator Cooling Tower Seal Pit 4 th Stage Reject Tank Make up from Clear water Overflow to Deculator cooling tower Feed to 4 th Stage Cleaner

31. Water Conservation Before & After Implementation

34. LET’S NOT STOP; WE NEED TO GO FURTHER

36. THANK YOU