Purification for stink and organic waste gas

Abstract

A process for treating the offensive smell in petrochemical sewage treating plant and cleaning the low-concentration waste organic gas features use of immobilized microbial membrane as filler and 1-3 stages of microbial treatment. It includes such steps as wet dusting for pre-treating, microbial treating and post-treating by absorbent.

Description

technical field

[0001] The invention relates to a method for purifying waste gas containing malodorous substances, in particular to a method for purifying malodorous and organic waste gas with low concentration, complex components and no recovery value. Background technique

[0002] During the refining of crude oil with high sulfur content and the processing of related products in petrochemical enterprises, relatively serious odor pollution often occurs. These odor-containing components are mainly sulfur-based odors such as hydrogen sulfide, mercaptan, and sulfide. Ammonia, organic amine, thiophene and other odor pollution. On the other hand, the discharge of various toxic and harmful exhaust gases is also seriously endangering people's health. Such as benzene, toluene, xylene, styrene and other aromatic hydrocarbons and other hydrocarbon pollution.

[0003] Odor pollution is an unpleasant feeling caused by people's sense of smell, and even a sensory pollution that affects...