Activated carbon for Gas Purification and Environmental usage
Activated carbon has a wide range of uses in both gas and exhaust air treatment applications. As a carrier medium for special impregnating agents or catalysts, activated carbon is useful in the recovery of solvents, in the purification of process gases, in the removal of dioxins, heavy metals, organic impurities. It is often employed to remove pollutants in air conditioner and exhaust system. It can also be used to remove odorous substances in kitchen exhaust food and refrigerator filters.
In power plants, incinerators, and cement kilns, activated carbon removes mercury, dioxins, furans, and other pollutants from exhaust gases to meet environmental regulations.
Common in both industrial and residential air filters to remove VOCs, odors, and airborne chemicals.
Impregnated and catalytically activated carbon for removal of inorganic substances such as heavy metals, ammonia or H2S.
Dioxins/Furans are a group of persistent and extremely toxic compounds, which are almost completely destroyed under stable combustion conditions, but are re-formed during dust separation at temperatures above 200° C.
Mercury is one of the rarest elements in nature. However, due to its high vapour pressure and easy dissolubility from chemical compounds, the danger of emissions to the environment is present in many industrial processes. Due to the high toxicity of mercury and its compounds, every possible effort should be undertaken to prevent such emissions. Possible sources of mercury emissions to the atmosphere are metallurgical processes and production and disposal of products containing mercury. Mercury can be removed from gas flows using different washing processes.
The following parameters are typically used to determine the pollution levels:
- TOC (dissolved organic carbon)
- COD (chemical oxygen demand)
- AOX (absorbable organic halogens)
Research have to be conducted to study the type of adsorption behavior of pollutants based on the above parameters. After which, the data obtained allows the determination of suitable type of activated carbon to combat the pollution.
Having a safe BOD level in wastewater is essential in producing quality effluent. If the BOD level is too high, then the water could be at risk for further contamination, interfering with the treatment process and affecting the end product. COD is an application that is usually used in industrial settings; however, municipalities treating wastewater with chemical pollutants may use it as well.
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Post time: Sep-11-2025