TOTAL WATER MANAGEMENT

Transcription

1 TOTAL WATER MANAGEMENT 1

2 JSW Steel Group Companies SISCOL, Salem Tarapur JSW Steel, Vijayanagar 4.0 mtpa. JSW Port, Goa VMPL, Iron Ore mining JPOCL JSW Captive power JSW Steel, Bellary 2

3 JSW : Process Raw materials to finished steel Non - coking coal Iron ore Coking coal Fluxes Lum mp ore Beneficiation Lump or re Coke oven Pelletization Sintering LCP HMDS Corex Blast furnace Converter LHF CCP HSM HOT METAL STEEL 3

4 JSW Steel Products HR Coils Plates and Slabs -Slabs - HR coils - Cold rolled coils - Pre coated - Galvanised - Bars & Rods - Structural etc. 4

5 Industrial management system Entire Integrated Steel Operation certified BENEFITS DERIVED: Consistent quality and quantity of water. Continuous improvements in quality. Lower Operational & Maintenance costs. Reliability of water for critical systems. 5

6 Water from Tunga Bhadra Reservoir (32 MGD) Tunga Bhadra Reservoir Intake water pump house Raw water pond(6.5 Mm 3 capacity) Clariflocculators(22.8 x 3 MGD) 6

7 Water usage at JSW Steel Power plants 38% Others 17% Corex-1 4% Corex-2 3% BF-1 3% BF-2 5% SMS-1 8% HSM 3% CRM 2% Coke Ovens I & II 2% Pellet Plant & Benification plant. 8% Sinter plant I 1% RMHS 1% FFPH 5% 7

8 Water Usage in Integrated Steel Plants 1. Cooling of Metallurgical equipment (ICW) 2. Gas cleaning &Fume flushing 3. Miscellaneous (Fire, drinking, gardening) 8

9 Water usage Company Policy 1. Efficient use of available water Reduction of evaporation rate Maximize use of alternate sources rain water & seepage. Reduction of fresh water in closed circuits by higher COC. Reverse osmosis plant for recovering good quality water. 2. Zero Discharge Cascading usage of water Use of blow down of one process as make up water in other processes. Equalization of final blow down water quality and its use in less critical applications. Treated sewage for gardening. 9

10 Efficient Use of water Fin-Fan heat exchanger Rain water harvesting Higher COC in Cooling towers Seepage water pumping 10

11 Cascading use of water 4.Consumptive use GCP Blow Down 3. DCW Blow Down 1.DM/So ft 2. ICW Blow Down 11

12 Water Cascading Corex Plant Corex DM Water Circuit Corex ICW Corex Slurry Water Circuit to PP Corex GCP Water Circuit GCP Water Clarifier Blow down to Ore Beneficiation SLIME POND 12

13 Waste water discharge zero GUARD POND -1 GUARD POND -2 Slag & Coke quenching Ore washing Best Practices-Green belt Greenery Development 13

14 Water conservation total involvement Employee involvement Awareness Water Help-Desk: Call Attend calls per day. Action taken within 6 hours. 14

15 Water Suggestion mela 15

16 Water - MIS Monitoring system Consumption: Flow meters at TOP of Shops:165 Nos. Daily readings at Production shops & Hourly reading readings at FFPHs. Quality: Hourly analysis of Raw water & Drinking water. Monthly water analysis by external chemical llaboratories. Reporting system Reports: Daily water consumption report (Enclosure3.xls). Monthly water report (Enclosure-5.xls) Monthly water cost (report) Review: Water consumption review in Daily HOD meeting. Weekly water conservation meeting (Enclosure4.xls). DQEC meeting (MOM-May 2008.doc). 16

17 Specific water consumption Year Annual Water consumption Specific fresh Production in tons water (April - Consumption Qantit 3 Source of Quantity (m ) March) Water Industrial Domestic Industrial ,28,810 7,06,050 River ,48, ,85,670 River ,51,293 11,38,490 River ,19,801 16,72,610 River Year Industrial Township water consumption Consumption m 3 Average employees per day Per capita consumption No of persons Per capita Consumption ,06,050 25, , ,85,670 28, , ,38,490 30, , ,72,610 35, ,

18 Water conservation projects A. Efficient use of water. Water Saving project implemented Sl No Year Savings a Collection of seepage water from raw water pond by constructing check dams and pump it back to reservoir m 3 Invest. Rs. Lakhs Payback Period (Months) b Construction of guard pond-1 for 4 mtpa units c Construction of guard pond-2 for 7 mtpa units c d Construction of lake in Vidyanagar to harvest rain water Improvement in the cycle of concentration ti by improving water treatment measures (continuous) e RVDF project in RWTP f g f Collection of seepage water by Bore wells and utilization in iron making zone. Collection of seepage water along the RWP bund area and pumping it back to pond Utilization of guard pond water for VVNagar township/vidyanagar township/plant horticulture/

19 B. Cascading use of Water. Sl No a b c d e Title of Water Saving project implemented Utilization of blow down of GCP water of Corex, BF 1&2 formakeupinore ore beneficiation plant Conversion of open circuit ID fan cooling to closed circuit cooling Utilization of blow down water from CPP-2 for coke quenching in to Coke oven-1,2 Collection of seepage water from MSDS cable tunnel and use in scale pit, of BOF. Recycling of fblow down water to slag quenching at BOF-CCP Year of Implement ation Annual Water Savings Invest. Made m 3 Rs. Rs. Lakhs Lakhs Lakhs Payback Period (Months)

20 Water usage - analysis Cement Plant Pellet Plant & Benification plant. Coke Ovens I & II CRM Sinter plant I HSM LCP RMHS Corex-1 SMS-1 Corex-2 BF-1 BF-2 HSM FFPH BF-2 FFPH Cokeoven FFPH Corex FFPH. Boilers utiltities (25 TPH) BOC-1 CPP-2 CPP-1 JPOCL JSWEL Chart-1,4 MT Production units Chart-2, Fire fighting pump houses Chart-3, Power Plants Boilers utiltities (80 TPH) WRM Water to Shankar Gudda colony IST steel plant 12 NTU Turbidity Chart SMS-2 BF-3 Sinter plant II Coke Ovens III VV Nagar Vaddu village Water supplied to Township Hort. Water from RWP to Lake Water to overhead tank in Vidyanagar. New batching plant Crushing plant 7 MTPA Labour Colony/Drinking water For BF-3. Drinking water supplied to plant. T u rbidity 7 NTU O NTU Hour Chart-4,7 MT Production units Chart-5,Miscellaneous units Chart-6 SPC 20

21 Conservation projects - highlights A. Application of Chemical in Raw water pond to reduce Evaporation. 1. Name of chemical : Ceta styrol Alcohol. 2. Supplier : Aqua Savia. 3. Cost (Rs/kg) : 120 Rs/kg. 4. Application rate (kg/day) : 64 kg/day. 5. Cost of application per day : 8500 Rs/day. 6. Potential saving of water at 50% efficiency : 8000 m 3 /day. 7. Savings due to reduction. : Rs 20,000/day 21

22 Evaloc is being mixed with water Solution is poured into a container Others 4% Water Consum ption - March 2007 Evaporation loss 17% Water Consumption - March 2008 Evaporation loss 13% Others 5% Ancillary units 19% JSW 56% Ancillary units 20% JSW 57% Drinking water 4% Total consumption = X 1000 m3 Drinking water 5% Total consumption = X 1000 m3 22

23 Raw Water Pond level Jan Feb Mar Apr May Jun Jl Jul Aug Sep Oct Nov Dec Fig-3: Comparison of Evaporation Rates in cm 2.5 rate in cm Evaporation With & without Evaloc application. 0 Jan Feb Mar Apr May June July Aug Sep Month Without Evaloc With Evaloc 23

24 Conservation projects - highlights B. Re use of seepage water & blow down water. Cable Tunnels constructed to collect seepage water. There are about 12 cable tunnel structures- VS-1, VS-2 VS-10. Entire seepage water is collected in VS-10(ventilation system). 24

25 Cable Tunnel water is measured using Electromagnetic flow meter. Cable tunnel water is being pumped to consumer units. About 150 to 200 m 3 /day water is being saved. 25

26 Conservation projects - highlights C. Use of Guard pond water. Capacity of Each Guard pond is 55,000 m 3. There are two separate Guard ponds for 4 MT & 7 MT Stage. 26

27 Guard pond pipeline network Excess s water taken to 7MT GP 2. Guard pond I Storage cap m 3 To 7MT ore Beneficiation plant pump house 7 MT Guard (1w+1s) pond II Storage cap m 3 Q= 300m 3 /hr VV Nagar horticulture 30 m 3 /hr Plant Horticulture 20 m 3 /hr Pump house (1w+1s) Each cap. Q=250m 3 /hr H=70mtr To Beneficiation plant 150m 3 /hr 300 m m 3 1 st Boosting 2 nd Boosting station at station ti at RM Gate Air strip Vidya Nagar township /Air port Horticulture 50m 3 /hr 27

28 THANK YOU 28