Gopal Sponge & Power Private Limited - Chhattisgarh Environment ...

Executive summaryof Draft Environmental Impact Assessment ReportGopal Sponge & Power Private LimitedMini Integrated Steel PlantThe following are air pollution control systems proposed in the proposed project.S. No. Stack attached to Control Equipment- :: 12 :: -StackHeight(m)Particulate emissionat the outlet of Stack1 Pellatization Plant ESP 41 < 50 mg/Nm 32DRI Kilns attachedto WHRBESP’s 60 < 50 mg/Nm 33 Sinter plant ESP 40 < 50 mg/Nm 34Blast Furnace Dust catcher followedby venturi scrubber50 < 10 mg/Nm 35InductionFume extraction &< 50 mg/Nm30furnacescleaning system6Submerged Arc Fume extraction &< 50 mg/Nm30furnacecleaning system7 Rolling Mill --- 36 < 50 mg/Nm 38 FBC Power Plant ESP 78 < 50 mg/Nm 3The main sources of dust pollution are raw material unloading areas, crushingoperations of raw materials and their transfer points. Dust suppression system willbe provided at material unloading areas. A separate dedusting system will beprovided to control the dust from various material transfer points by means ofsuitable ducting connected to an Induced Draught fan. The dust that is drawnfrom various points will pass through bag filters. The following table shows thevarious control systems proposed in the proposed project and their outlet dustemissions.8.2 WATER ENVIRONMENTWaste water generated from the proposed project will be treated in EffluentTreatment Plant and fully reused within the plants/premises. Zero dischargesystem will be adopted. Effluent from Gas cleaning plant of Blast Furnace will betreated in a settling tank and after treatment it will be recycled.EFFLUENT TREATMENT PLANTThe effluent generated from the proposed Plant will be treated in the followingmanner.pH of the boiler blowdown will be between 9.5 to 10.5. Hence a neutralization tankwill be constructed for neutralizing the boiler blow down & DM plant regenerationwater. After neutralization these two effluent streams will be mixed with CoolingTower blowdown in a Central Monitoring Basin (CMB). The treated effluent after