FENGWen-tao,XUYan-ping,HOUFeng,et al.Design and Application of Typical Semi-open Pollution Source Malodorous Gas Collection Device in Municipal Wastewater Treatment Plant[J].China Water & Wastewater,2022,38(14):84-88.
Design and Application of Typical Semi-open Pollution Source Malodorous Gas Collection Device in Municipal Wastewater Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第14期
Page:
84-88
Column:
Date of publication:
2022-07-17
- Keywords:
- municipal wastewater treatment plant; malodorous gas; gas collection device; semi?open pollution source
- Abstract:
- According to malodorous gas generation characteristics and collection requirements of typical processes facilities in a municipal wastewater treatment plant, the conventional malodorous gas collection modes were compared and analyzed. A typical semi-open pollution source malodorous gas collection device in a sludge dewatering room was designed. The device was composed of an umbrella-shaped cover, an air collecting branch pipe and a negative pressure induced draft fan. Under the condition of slight negative pressure, the umbrella-shaped cover had a better induction effect on the air stream, and effectively reduced the dead zone of the gas collection and improved the collection efficiency. The collection device and biological filtration deodorizer were combined to collect and treat malodorous gas in the sludge dewatering room of the municipal wastewater treatment plant, and the collection and treatment capacity of malodorous gas was 370 m?/h. The removal efficiencies of hydrogen sulfide and ammonia were 99.25% and 99.41%, respectively, indicating that a good collection and treatment performance was achieved.
Last Update:
2022-07-17