Air pollution control systems

emission control device that treats engine exhaust gas by catalyzing pollutant-destroying redox reactions

NOx reduction technique used in gasoline and diesel engines

at train station platforms, a door that separates the platform from the train, due to architectural constraints, climate control, and/or for safety

thumb|right| Biosolids composting plant biofilter mound - note sprinkler visible front right to maintain proper moisture level for optimum functioning

a method of removing particulates from a fluid stream through vortex speration

removes diesel particulate matter or soot from the exhaust gas of a diesel engine

a filtration device that removes fine dust particles from a flowing gas using the force of an induced electrostatic charge through the patriculate matter being collected

Technologies used in fossil-fuel power plants

standardized aqueous urea solution for exhaust aftertreatment

gas combustion device

an aqueous ammonia SCR process overview

gas combustion process

large container used for particulate collection

provision of electrical power for use by a ship at berth

IQAir is a Swiss air quality technology company, specializing in protection against airborne pollutants, developing air quality monitoring and air cleaning products. IQAir also operates AirVisual, a real-time air quality information platform. As of February 2020, it had around 500 employees worldwide, 150 of them in China, and its most important markets were Asia and North America.

exhaust of a diesel engine

mechanical device to separate components of air

industrial pollution control device

Gas desulfurization process

Pollutant remover device

gas-liquid contactor

thumb|Crit'air vignettes

vehicle emissions control strategy

process unit to control air pollution

gas stream scrubber