NTPC Dadri is striving to become the cleanest coal fired plant in the country. Additionally, it is complying with all the CPCB guidelines on emissions as well. All the emission parameters are monitored in online and transmitted to Central Pollution Control Board (CPCB) on real time basis. As per a statement issued by NTPC Ltd, the Flue gas emissions and Particulate matter are well within the CPCB norms with high efficiency ESP (Electrostatic Precipitators) in service in all the 4 nos. 210 MW & 2 nos. 490 MW units.
For SOx reduction, Dry Sorbent Injection (DSI) system has been installed in 210 MW units for the first time in the country with technology from UCC (United Conveyor corporation), USA and now all the four units are meeting emission norms. FGD system is in advanced stage of implementation in 490 MW units by BHEL with technology from Mitsubishi Power Works, Japan.
All the 210 MW units were already compliant to NOx emission norms. SOFA (Separated Overfire Air) system is installed in 490 MW units. Due to SOFA installations, all units now comply with the norms for NOx. NTPC Dadri has also pioneered co-firing of Biomass pellets along with coal in the boilers. The pellets are made of husk or agro-residue . Otherwise, this residue would have been burnt in the fields increasing the pollution in NCR region. More than 8000 Tons of pellets have been fired in the boilers of NTPC Dadri. This is equivalent to almost 4000 acres of farm fire avoided. NTPC Dadri has set new benchmarks in Water consumption, going beyond compliances, by implementing Zero liquid discharge system and Rain water harvesting system.
