METHOD AND APPARATUS TO TREAT MALODOROUS WASTE-AIR USING THE SYSTEM COMPOSED OF THE FRONT PROCESS OF VISIBLE RAY/PHOTO-CATALYTIC REACTOR AND THE REAR PROCESS OF BIOFILTER

摘要

A kind of method and apparatus are arranged to remove hydrogen sulfide, ammonia, and the volatile organic compounds generated from fertilizer factory or urban operating mechanism for handling malodorous waste gas, by using a biofilter. One humidifying unit makes to moisten by the foul gas of a visible rays/catalytic reactor (7), before introducing foul gas to a biofilter (21). One aerobic tank (13) has made carrier liquefy, and is used to that water-soluble ammonia to be absorbed and aoxidized from the pollution sources of stench. Absorbed ammonia contacts fluidized carrier, drops to the nitrogen within a septic tank (14). Aerobic tank and septic tank constitute a reactor tank (12). In biofilter, it is entered biofilter and hydrogen sulfide, ammonia with the foul gas of less ammonia, and is contained in the volatile organic compounds of foul gas and is handled simultaneously. Water is supplied to biofilter, enters biofilter by a part that the processing water released in the case (16) stopped from one is spilt in one spraying (23).