1 Minutes of the 36th Meeting of the Expert Appraisal Committee ...

Total water requirement after proposed expansion project will be 17,602 m³/day, which will besourced from Wainganga River. Fly ash will be disposed to cement plants, brick manufacturing andother end users, bed ash will be disposed to brick manufacturing & concrete products makers, ESPDust & DRI Ash will be used as fuel in FBC Boiler and for sale to local parties and Dust of Bag Filters(DRI & SMS) will be used for sinter & sponge iron manufacture. EAF & IF Slag will be disposed tocement manufacturers, roads construction & other end users, Steel Scrap will be recycled to SMS,Grinder Waste will be recycled to SMS, Coal Rejects/ Fines will be used as fuel in power plant andGranulated MBF Slag will be disposed to cement plants. Mill Scale, Residue from MBF Gas CleaningPlant, Coke Fines & Nuts, Iron Ore Fines, Hot Returned Ore and Removed dust will be used in sintermanufacture. Used/Spent Oil will be disposed to authorized reprocessors /recyclers, Acid Residue,Spent Bath Sludge and ETP Chemical Sludge will be used for sinter manufacture or disposed toCHWTSDF, Butibori.Public hearing is not required as per Para 7 (i) III (b) of EIA Notification, 2006 as the project islocated in notified industrial area.After detailed deliberation, the Committee recommended the project for environmental clearancesubject to stipulation of following specific conditions along with other environmental conditions:i. Efforts shall be made to reduce RSPM levels in the ambient air and a time bound action plan shall besubmitted. On-line ambient air quality monitoring and continuous stack monitoring facilities for all thestacks shall be provided and sufficient air pollution control devices viz. Electrostatic precipitator(ESP), gas cleaning plant, venturi scrubber, bag filters etc. shall be provided to keep the emissionlevels below 50 mg/Nm 3 by installing energy efficient technology.ii.iii.iv.As proposed, Electrostatic precipitator (ESP) shall be provided to WHRB, CFBC and DRI plants tocontrol SPM levels within 50 mg/Nm 3 . Fume extraction system shall be provided to induction furnacesto control the emissions within the prescribed standards.The National Ambient Air Quality Standards issued by the Ministry vide G.S.R. No. 826(E)dated 16 th November, 2009 shall be followed.Gaseous emission levels including secondary fugitive emissions from all the sources shall becontrolled within the latest permissible limits issued by the Ministry and regularly monitored.Guidelines/Code of Practice issued by the CPCB shall be followed. New standards for the spongeiron plant issued by the Ministry vide G.S.R. 414(E) dated 30 th May, 2008 should be followed.v. Hot gases from DRI kiln shall be passed through Dust Settling Chamber (DSC) to remove coarsesolids and After Burning Chamber (ABC) to burn CO completely and used in waste heat recoveryboiler (WHRB). The gas then shall be cleaned in ESP before leaving out into the atmosphere throughID fan and stack.vi.vii.viii.Total water requirement after the expansion project shall not exceed 17,602 m³/day. Use of air cooledcondensers shall be explored and closed circuit cooling system shall be provided to reduce waterconsumption and water requirement shall be modified accordingly. All the effluent should be treatedand used for ash handling, dust suppression and green belt development. No effluent shall bedischarged and ‘zero’ discharge shall be adopted. Sanitary sewage should be treated in septic tankfollowed by soak pit.Efforts shall be made to make use of rain water harvested. If needed, capacity of the reservoirshould be enhanced to meet the maximum water requirement. Only balance water requirement shallbe met from other sources.Regular monitoring of influent and effluent surface, sub-surface and ground water (includingchromite) should be ensured and treated wastewater should meet the norms prescribed by the StatePollution Control Board or described under the E(P) Act whichever are more stringent. Leachatestudy for the effluent generated and analysis shall also be regularly carried out and report submittedto the Ministry’s Regional Office at Bhopal, SPCB and CPCB.3