What is the odour control Unit ?
Odour control unit is designed to treat hydrogen sulphide (H2S) and other odorous compounds found in the air related to pumping stations, inlet works, Wastewater treatment plants and sludge treatment area.
because odour control unit shall be single stage process but with a duty & stand-by fans to extract the odorous air from the process the area so air pass through activated carbon system before releasing to atmosphere.
Our standard odour control unit’s capacity are ranging from 50 m3/hr to 1,000 m3/hr.


How odour control unit work ?
because odourous air in contact with activated carbon media, will adsorb the hydrogen sulfide and other odour gases present in the air, and will release the purified air to atmosphere. but the media shall be pelletized activated carbon made of coconut shell, specially made for wastewater odour removal application. because media shall be water regenerable at site with potable / irrigation water. So the cleaned air is discharge to the atmosphere through one stack at the top of the unit. So treated air quality shall be continuously monitored by hydrogen sulphide sensor.

Why Odour Control System?
o 20 years ago, there was no much discussion on Odour control in wastewater treatment.
o WWTPs where far away from city but cities were not crowded; Odour was not making much issue.
o Because cities expanded, wastewater networks increased, WWTP became inside the city. So odour became a significant problem for residents and public.
oSo Odour Control Unit became an essential process equipment as a part of wastewater treatment process in many cities around the world.
o But remove these odour from its source, before it’s spread to atmosphere. Use proper designed odour control units to extract these odourous gases from its source and treat the odour, before spread to the surrounding air.
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Custom Odour control unit.
Custom engineered Odour control unit is also based on fan assisted active odour control unit, which are designed and manufactured as per client specifications and requirements. If client doesn’t have clarity or specific requirements in odour control system so our technical experts evaluate the problems and challenges faced by clients and prove the most suitable & reliable tailor-made solution for the specific odour emission issues. but with gas monitoring sensors, the system will ensure the odour control is happening as designed. Filtration media are selected based on the gases to be removed and life expectancy of the filtration media. So Water regenerable catalytic activated carbon media are one of the most preferred filtration media in wastewater odour removal applications.


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