Wuzhong Chengnan sewage treatment plant was built in 2015. The advanced sewage treatment process was adopted in Wuzhong Chengnan sewage treatment plant of Suzhou City, Jiangsu Province, with a design scale of 150000 m3 / day and an initial daily treatment scale of 150000 m3 / day. Such a large-scale sewage plant will encounter the problem of waste gas in the sewage. Fengjing environmental protection technicians provide manufacturers with a one-stop solution, which uses plasma purification equipment to crack waste gas molecules, combined with UV purifier to remove odor, oxidize and reduce waste gas molecules to carbon dioxide and water, fully meeting the emission standards.