H2S removal from air stream
H2S removal from air stream
(OP)
thread127-319242: washing of H2S by caustic soda
Since oxygen is active reactor with H2S , is there a way that we can enhance the reaction? What is the condition if reaction needed? Like flow or pressure in order to get red of H2S ?
Since oxygen is active reactor with H2S , is there a way that we can enhance the reaction? What is the condition if reaction needed? Like flow or pressure in order to get red of H2S ?





RE: H2S removal from air stream
In alkaline water solution though, the reaction with dissolved oxygen is slow, and the saturation pressure of oxygen is low. Pressure and temperature both help, but also cost money (capital and operating). Materials selection gets harder and more expensive as temperature and pressure increase.
Peroxide and ozone also both work. So does bleach. All at room temperature and atmospheric pressure, without the materials concerns (if you use nonmetallics in your scrubber). But again, those oxidants cost more money than compressed air. So it's all a balance.
RE: H2S removal from air stream
The bacteria are ubiquitous but need surfaces for habitation and nutrients. Biofilters should work.
RE: H2S removal from air stream
Thank you for the replay and information
What is the most effective way of treatment considering low cost
RE: H2S removal from air stream
Appreciate your answer , what is the specious name for this bacteria?
Is this really successful solution? Did u tried it
RE: H2S removal from air stream
RE: H2S removal from air stream
Providing ample moisture, oxygen nutrients and a surface for the bacteria to dwell on will greatly reduce your H2S but will not guarantee a treshold.
Another solution is to have a packed column and a aquauos solution of the nutrients the bacteria need taht is circulated over the column. TS Umweltanlagenbau in Germany and DMT technologies in the Netherlands offer such systems.
However, since I don't know your appliocation and the amounts of H2S I can't really tell if a biological system is appropriate - since you wrote "... removal from air" I assumed oxygen to be present.
RE: H2S removal from air stream
Air flow is 6500 m3 / hr
RE: H2S removal from air stream
RE: H2S removal from air stream