chapter - 1 introduction - Meghalaya State Pollution Control Board

Hills Cement Co. Limited.
The measures envisaged for controlling water pollution will be contain the
water pollution within tolerance limit as specified in MOEF notifications and
other related statutory norms. The Waste Water generated from the various
Plants will be let out after proper treatment in order to reduce pollutants in the
wastewater within the acceptable limits.
There will be temporary houses along with canteen and toilet facilities. Water
for washing & sanitary requirement will be meet out from the stored rainwater.
There will be negligible impact on the surface water quality. The drinking
water will be purchased from out side. It is proposed to utilize maximum
rainwater from the stored reservoir.
A) Domestic Effluent
60 m 3 / day waste water will be treated in the effluent treatment plant
based on activated sludge process. The treated waste water will be
utilized quantitatively for green belt and plantation in the area. The
plant will be based on zero discharge principle. Thus there is no
discharge of effluents envisaged from the plant.
B) Industrial Effluent
- To prevent water pollution by oil/grease and sewage waste, following
control measures are proposed to be implemented:
- Leak proof containers will be used for storage and transportation of
oil.- Water quality monitoring will be done regularly.
- Workshop effluent will be passed through pit / grease trap and
recirculated.
- “Demineralization plant regeneration chemicals” will be first led to the
neutralization pit and then to the common effluent pit
- Waste water from potable water system, Boiler blow down, CT blow
down and Waste water from clarifier will be directly led to the common
effluent pit
- Thus about 160 M 3 / day treated water will be available from the
common effluent pit which will be used for dust suppression, gardening
etc.
Wastewater management:
Principle of “Zero Discharge” will be adopted. There is no waste water
generated from the cement plant except domestic effluent from the colony. All
effluent from demineralization plant, where chemical will be used, shall be
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