MINUTES OF2ND RECONSTITUTED EXPERT APPRAISAL ...

taken for storage of raw materials on concrete floors with bund under cover shed so asto avoid any leaching during rainy season. The flue gas from the production process willbe passed through Spark Arrester-cum-Heat Exchanger followed by Gas Cleaning Plant(consisting of Bag filters) and then the clean gas will be released through stack of 45 mheight. The PM level will be maintained below 100 mg/Nm 3 . Base line data of ambient airquality monitored at eight locations indicates that concentrations of PM 10 , PM 2.5 , SO 2andNO x are varying from 42.1 µg/m 3 to 74.3 µg/m 3 , 34.2 µg/m 3 to 49.7 µg/m 3 , 6.5 µg/m 3to 11.6 µg/m 3 and 7.7 µg/m 3 to 13.5 µg/m 3 respectively. AAQ modeling study for pointsource emissions indicates that the maximum incremental GLCs after the proposedexpansion would be 0.07743 µg/m 3 , 0.13448 µg/m 3 and 0.40530 µg/m 3 with respect toPM 10 , SO 2 and NO x respectively. The resultant concentrations are within the NAAQS.Total water requirement will be 287 m 3 /d (for existing 148 m 3 /d + for expansion139 m 3 /d) which will be sourced from ground water. CGWA accorded NOC for drawl ofground water. Rain water harvesting is also proposed. The cooling tower blow down,back wash of soft water plant and effluent from QC lab will be treated in settling tank andused for slag cooling, dust suppression and green belt development. The effluent fromcanteen will be treated in an ETP using anaerobic treatment and used for green beltdevelopment. The sewage will be treated in septic tank and discharged to soak pit. Theplant will operate on zero discharge basis. The flue dust from smelting furnace will bereused in form of briquette. The Fe-Mn slag will be used for the production of Si-Mn. TheSi-Mn slag will be utilized for brick making and laying of roads, the Fe-Si slag will be soldto cast iron foundries and the Fe-Cr slag will be subjected to TCLP test and accordinglyits handling, management and utilization for building material, brick making etc. will bedone. The used oil/lubricants will be sold to authorized reprocessors. The quantity ofresin waste is very less and will be stored in the closed drums. The domestic solid wastewould be vermi composted.The Committee noted that no public hearing / consultation is required due toproject being located in notified industrial zone as per stage Section 7 (i), III Stage (3),Para (i)(b) of EIA Notification 2006.After detailed deliberations, the Committee found the EIA/EMP report & itsaddendum adequate and suggested to stipulate following specific conditions along withother environmental conditions while considering for accord of environmental clearance:1. No charcoal shall be used as fuel. Pet coke shall be used as fuel instead ofcharcoal from unknown sources.2. Continuous monitoring facilities for the process stacks and sufficient air pollutioncontrol equipments viz. fume extraction system with bag filters, ID fan and stackof adequate height to submerged arc furnace shall be provided to controlemissions below 50 mg/Nm 3 .3. 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.4. Secondary fugitive emissions from all the sources shall be controlled within thelatest permissible limits issued by the Ministry and regularly monitored.Guidelines / Code of Practice issued by the CPCB shall be followed. The rawmaterial storage shall be covered.