Method for treating waste gas of refined terephthalic acid sewage plant
A purified terephthalic acid and treatment method technology, applied in the field of waste gas treatment, can solve the problems of high investment and operation cost, high operation cost, and general treatment effect, and achieve low investment and operation cost, simple operation and no safety risk effect
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[0022] The present invention will be further described below by specific embodiment
[0023] Exhaust gas in embodiment [1~5], comparative example [1~2] is the exhaust gas that the PTA sewage treatment plant of petrochemical enterprise produces, and intake air composition is:
[0024] Exhaust gas volume 20000m3 / h
[0025] Temperature 40~60℃
[0026] Humidity>95%
[0027] Total non-methane hydrocarbons 13~300mg / m3
[0028] Hydrogen sulfide 2~50mg / m3
[0029] Ammonia 0.5~2mg / m3
[0030] Benzene 3~30mg / m3
[0031] Odor concentration 4000~10000
[0032] Embodiment 【1~5】
[0033] The waste gas produced by the PTA sewage field passes through the waste gas collection pipe and enters the alkali washing tower under the suction of the rear induced draft fan. The circulating spray pump is used for spraying alkali washing, and 30% liquid alkali is added to the sump of the alkali washing tower, and then The exhaust gas enters the biofilter and contacts with the microorganisms on the...
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