
Emission Control


NOX Control Strategies: Key technologies and progress
A significant proportion of the emissions produced by the industrial sector in the country are attributable to the coal-based thermal power industry. The combustion of coal converts the nitrogen bound in it to products such […]

SOX Control: Key considerations for FGD technology selection
For coal-fired power plants, several technology solutions are available to meet the SOX emission standards prescribed by the Ministry of Environment, Forest and Climate Change. Wet FGD based on limestone is one of the most […]

Slow Compliance: Emission control trends and implementation challenges
Coal-based capacity is the largest contributor to power generation in India with a share of around 70 per cent in 2022-23 (till January 2023). The drawback of the higher share of coal-based power generation capacity […]

Combating Pollution: Technologies to control PM and mercury emissions
Besides sulphur oxides (SOx) and nitrogen oxides (NOx), thermal power plants (TPPs) also emit particulate matter (PM) and mercury. These emissions can be reduced by installing suitable emission controlling devices. Various technologies such as electrostatic […]

Handling Effluents: Management of wastewater from FGD systems
Wet flue gas desulphurisation (FGD) systems have been the most popular solution for SOX and NOX emission control, and have been adopted by many thermal power plants (TPPs). More than 90 per cent of TPPs […]

Reducing SOx Emissions: Technologies for minimising the adverse effects of sulphur oxides
Sulphur dioxide (SO2) emissions are a particularly acute problem in the power sector as well as in the country. SO2 is a corrosive gas created by the oxidation of sulphur bearing materials such as coal, […]


Curbing NOx Emissions: Technologies and implementation challenges
While burning coal in the boiler, coal-based thermal power plants (TPPs) convert a large portion of nitrogen in the coal to various forms of nitrogen oxide (NOx) such as nitric oxide, nitrogen dioxide and nitrous […]

Compliance Status: Utility initiatives for emission control
Emission control from coal-based thermal power plants (TPPs) is the key to facilitating a smooth energy transition in India. Renewable energy capacity is growing at a rapid rate and coal-based plants are expected to play […]

Compliance Trends: Recent developments in emission control
Coal-based capacity is the largest contributor to power generation in India with a share of 71 per cent in 2020-21. The drawback of the higher share of coal-based power generation capacity is the emission of […]

De-SOx Strategies: Technology solutions to control sulphur oxide emissions
De-sulphur oxide (SOx) solutions are imperative for coal-based power plants to comply with the Ministry of Environment, Forest and Climate Change’s environmental norms prescribed for thermal power plants (TPPs). While several technology solutions are available […]

De-NOx Strategies: Solutions to meet emission norms
Coal-fired thermal power plants (TPPs) account for a significant amount of the country’s greenhouse gas emissions, contributing to pollution and poor air quality. The combustion process in TPPs converts some of the nitrogen bound in […]

Effective Enforcement: Water management and consumption checks by TPPs
Thermal power plants (TPPs) utilise significant amount of fresh water during power generation for condenser cooling, removal of plant heat from plant auxiliaries and cycle make-up. Currently, TPPs in India account for less than 5 […]
