食品行业废气、废水的控制要点与治理方法

Control points and treatment methods of waste gas and waste water in food industry

食品行业在调制、加工的过程中会产生含有浓郁异味的有机工业废气,例如硫化氢、醛类、酯类、醚类等,其污染环境、影响人们生活的舒适性。同时,食品企业产生的废水普遍存在间歇式高浓度少量排放和间歇式低浓度大量排放的特点,导致排入污水处理系统后瞬时冲击负荷大,异常情况多。因此,对食品行业废气、废水的分段控制和分类处理,是环保部门和生产企业需要共同面对的难题。

Organic industrial waste gas with strong odor,such as hydrogen sulfide,aldehydes,esters and ethers,will be produced in the process of food processing,which pollutes the environment and affects people’s comfort.At the same time,the characteristics of intermittent high concentration and small amount discharge and intermittent low concentration and large amount discharge are common in the wastewater produced by food enterprises,which leads to large instantaneous impact load and many abnormal conditions in the wastewater treatment system.Therefore,segmented control and classified treatment of waste gas and wastewater from food industry is a common problem for environmental protection departments and production enterprises.