India: The Central Pollution Control Board (CPCB) has issued a notice to Kalaburagi Cement in Chatrasala village, after an inspection reportedly identified several deviations from environmental regulations.
The integrated plant has a capacity of 3.6Mt/yr of cement and 2.75Mt/yr of clinker. It also has a 30MW captive power plant and 8.4MW waste heat recovery system. The CPCB said that, although continuous emission monitoring systems (CEMS) had been installed in five stacks, monitoring equipment for particulate matter (PM), sulphur dioxide (SO₂) and nitrogen oxides (NOₓ) had not been installed in the 130t/hr capacity boiler stack.
Manual observations also found PM concentrations exceeding the prescribed limit of 30mg/m³ in three stacks, recording levels of 38.1mg/m³, 63.3mg/m³ and 357mg/m³ in the reverse air bag house, cement mill 1 and clinker cooler stacks, respectively.
The CPCB noted a ‘significant deviation’ between CEMS readings, which showed PM levels below 30mg/m³, and the manual monitoring results. The board has directed the plant to take corrective action.
