How to handle odors during sludge drying
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Dear experts, I’ve come across a project where the client is engaged in sludge drying. The odors generated during this process need to be dealt with, and the waste gas has already been subjected to two stages of dust removal treatment. I would like to ask how to deal with bad odors? Components: ammonia, hydrogen sulfide, methanethiol, dimethyl sulfide. Concentration unknown.
Can it be absorbed using spray water, by drawing it out with an exhaust fan?
Water curtain dust removal, alkaline washing, and activated carbon adsorption.
Activated carbon adsorption doesn’t work; in high temperature and humidity conditions, use biological filtration by lowering the temperature to 60 degrees
Collect it using an exhaust fan, wash it with sodium hydroxide, and then treat it with activated carbon absorption – that’s about it
Low-temperature plasma combined with photochemical treatment can be used; this is exactly what I specialize in, and I have handled many cases to date. If you are interested, feel free to get in touch with me!
The simple approach is spraying combined with activated carbon; several types of spraying solutions can be tried, such as alkaline solutions like sodium hydroxide, and oxidizing agents like hydrogen peroxide, sodium dichloroisocyanurate, sodium hypochlorite, etc.
Both biological and plasma methods are applied in corresponding treatment cases.
Dust removal + multi-stage alkaline spraying + water curtain cooling + dehumidification + activated carbon
Two stages of spray absorption have already been carried out earlier, so further washing is pointless.
The microorganisms are solidified; after solidification, their moisture content is 10% and there is no odor. Contact 13310905586