Ventilation and Deodorization Design of an Underground WWTP in Gansu Province
In order to improve the process environment of underground WWTP,which is more energy saving and reasonable,and help to reduce the pipeline and space occupying,a new design method combining ventilation system and deodorization system is adopted in an underground WWTP project in Gansu Province.According to the main and secondary sources of odor,air supply and odor absorption points are designed to achieve different negative pressure levels in the region and prevent odor spillovers,including the calculation of deodorizing air volume,the determination of air supply and exhaust volume,the reasonable value of air exchange times,the design of air flow organization form,etc.,to achieve the coordination of ventilation and deodorizing two sets of systems,so as to ensure the comfortable environment of each underground space.The ventilation system also considers special rooms,such as dosing rooms,etc.,according to the gas characteristics of special gases produced in the process reaction,sets different high and low air supply and exhaust levels,and selects the corresponding number of air exchanges to determine the air volume.Ventilation is provided in rooms designed to extinguish gas fires,such as power distribution rooms,for normal ventilation and ventilation after accidents.
underground WWTPdeodorant collection systemventilation systemdetermination of air change frequencyair distribution form
国家科技期刊平台
NSTL
万方数据
