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Odor Gases Treatment Practice of Sewage Treatment Plant in Refineries
Pages: 37-40
Year: Issue:  5
Journal: Techno-Economics in Petrochemicals

Keyword:  wastewater treatment plantodor controlchemical washingcombined biological technologyadsorptionodor concentration;
Abstract: Sewage treatment plants in petrochemical enterprises are important odor pollution sources which need to be controlled.The odor gases in sewage treatment plants are divided into two strands (namely high concentration exhaust gas and low concentration exhaust gas)based on the characteristics of odor pollution. The high concentration exhaust gas is chemically cleaned and then mixed with the low concentration exhaust gas into the combined biological deodorization device for purification treatment,and the treated exhaust gas is subjected to advanced treatment by an activated carbon adsorption device.The results showed that the composite technology had obvious purifying effect on the odor treatment of sewage treatment plant,in which the odor concentration was less than 100,the non-methane total hydrocarbon was less than 6.5 mg/m3 ,the mass concentration of hydrogen sulfide was 0.004 mg/m3 ,which were much lower than the national standards.
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