As per the Environmental Pollution Control Act 1986 measure should be taken immediate in case of any cause of pollution effected by the Industry

Sl.No

Deficiency

Measure Suggested

I

To improve the

emission

control

efficiency in

the process section

(1) Hoods with extraction system are to be installed for collection of fugitive emission at (i) smelter lance, (ii) smelter feed port, (iii) rotary holding furnace-slag

granulation & (iv) matte

tapping and to be connected to the control measures. In view of the above dditional emission load, the emission control measures of scrubbing system has to be enhanced.

(2) One bag house at smelter is to be installed prior to

scrubber, to control dust

emission.

(3) One bag house at converter is to be installed prior to

scrubber, to control dust

emission.

(4) Regulative measure for

periodical soot blowing

operation in waste heat

recovery boiler is to be

implemented to prevent

sudden emission load of soot particulates.

II

To improve

fugitive

emission

control

(1) Ducts to collect all the fugitive emission and control measure of flue gas  desulphurization

system consisting of bag filter and 2 stage lime scrubber are to be provided, as per the

engineering study carried out.

(2) Gypsum conveyor belt is to be made fully closed so as to

prevent fugitive emissions.

(3) The unpaved roads within the industry premises should be

pave to control the dust due to movement of vehicles.

(4) The frequency of water

sprinkling on roads is to be

increased to 4 times per shift to reduce the re- uspended dust particles due to

movement of vehicles.

(5) Permanent water sprinklers are to be provided at gypsum pond area and roc phosphate area.

III

To improve

effluent

treatment

operation

(1) The chemical treatment

comprising coagulation flocculation

and settling is to be operated effectively to optimize the treatment

efficiency so as to improve

the performance of fluoride

remove.

(2) The existing reverse

osmosis plant is to be

operated to the maximum

capacity of 1,600 kiloliters

per day and maintained so

as to recover, recycle and

reuse the permeate.

(3) Iron removal plant as a

pretreatment facility to

reverse osmosis system is

to be installed for

sustaining the membrane

life and achieving optimum

membrane performance.

IV

To improve disposal of rejects arising

from effluent

treatment

Plant

(1) The evaporation system along  with drying facility must be expanded to cope up with the capacity of the reverse

osmosis plant and improved to generate the concentrate in solid form.

(2) The reverse osmosis rejects stored in the temporary storage ponds must be taken for concentration and drying followed by disposal in secured landfill facility.

(3) The temporary storage ponds provided for disposal of reverse smosis rejects must be removed, in view of capacity augmentation of

evaporator system.

V

To improve raw

material

storage and

handling

(1) The raw material of copper concentrate is to be stored in a closed shed and received & transferred in closed conveyor system.

(2) All the chemical storage tanks are to be provided with dykes to avoid the possibility of any accidental discharge.

VI

To improve

storm water

drainage and

collection

system

(1) The deposited silt in the storm water drains is to be removed and disposed off in secured landfill facility and this is to be practiced regularly to prevent any pollutant carryover and to avoid water logging.

(2) Additional rainwater collection reservoir with storage capacity of 30,000-50,000 cubicmeter, is to be provided to prevent discharge of runoff from the critical storage/process plant areas, during peak

precipitation, taking into

consideration of the recent

updated meteorological data and maximum industrial

utilization.

VII

To improve

solid waste

disposal

(1) The sold waste of slag is to be stored within the stipulated 10 hectares of land with a restricted stacking height of 12 meters so as to adhere with the safe load bearing capacity of 25  metric ton per square meter of the underlying soil/land in that area.

(2) The slag is to be disposed for beneficial uses, such as road formation, shot blasting, abrasive production, cement aggregate making and other relevant are as of application, with approval from concerned agencies. The monthly

disposal must be at least 50% more than the monthly generation quantities of both slag and gypsum.

VIII

To improve

monitoring of

air quality,

effluent and

water

consumption

(1) Additional electromagnetic flow meters (12 Nos.) are to be provided to assess (i) raw water consumption (4 Nos.),(ii) rain water consumption (3 Nos.) and (iii) waste water generation & waste water reuse (5 Nos.)

(2) Online pH meter is to be provided in reaction tanks of the effluent treatment plants to ensure optimum pH for

effective precipitation of the pollutants.

(3) Fluoride concentration in groundwater at gypsum

storage ponds is to be

regularly monitored, recorded and ensured with the baseline fluoride concentration.

(4) Health monitoring of the people living in the nearby villages is to be carried out at least once every six months.

IX

To improve

greenbelt

development

(1) Around 26 hectares of land within the industry premises is to be earmarked and developed as greenbelt, to the width of 25 meters.

(2) Greenbelt cover should be improved around the

periphery of the smelter

plant, slag yard, gypsum

pond and secured landfill

facility to act as barrier to

control secondary fugitive

emissions.

(3) The native species (achras sapota, azadirachta indica,

cassia fistula, cassia slamea, casuarinas equisetifolia, eucalyptus sp. Flcus benghalensis, ficul eligiosa,millingtonia hortensis, oringa

sp. Peltophorum ferrugineum, polyathia

lingifclia, pongarnia pinnata, prospis juliflora, tabefuia rosea, terminalia catappa, thespesia populnea, etc.) should be planted in new areas of greenbelt cover.”