Ventilation and Deodorization Design of an Underground WWTP Based on Environmental Control with High Standard
Traditional underground wastewater treatment plants are designed with occupational exposure limits or pollutant emission limits,which are difficult to meet the basic demands of personnel for health and comfort.Based on stricter and higher standards of environmental control objectives,an underground wastewater treatment plant(WWTP)adopted improved technical measures and design methods such as formulating targeted odor sealed isolation and treatment process,integrating ventilation and deodorization systems,and connecting the operation layer of process facilities to the sunken courtyard for the first time in the southern region.The results of measurements show that no hydrogen sulfide is detected and the odor concentration is below 20 in areas;The natural wind speed in the area connected to the courtyard is stable and the pollutant concentration is the lowest level in the WWTP;After deodorization,the emission values of exhaust pollutants and the concentrations of pollutants at the plant boundary are obviously better than the standard limit value.The project achieves the people-oriented environmental quality effect and provides a technical reference for building a comfortable operation and harmonious symbiotic underground WWTP.
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