Biochemical aeration tank sewage treatment defoaming agent and preparation method thereof

The invention discloses a biochemical aeration tank sewage treatment defoaming agent and a preparation method thereof, and relates to the technical field of defoaming agents. The biochemical aeration tank sewage treatment defoaming agent is prepared from the following raw materials in parts by weight: 5-50 parts of carbon alcohol, 1-10 parts of an amphoteric emulsifier, 1-10 parts of a nonionic emulsifier, 1-5 parts of a penetrant, 1-5 parts of silicon polyether and 30-80 parts of water, and the silicon polyether is polypropylene glycol methyl dimethoxy silyl propyl ether. On the basis of the carbon alcohol, the amphoteric emulsifier and the nonionic emulsifier are compounded, and the penetrant and the polypropylene glycol methyl dimethoxy silyl propyl ether are introduced to prepare the defoaming agent, so that the defoaming agent has the characteristics of high defoaming speed, lasting foam inhibition, easiness in dispersion in a system and no influence on sewage. 本发明公开了一种生化曝气池污水处理消泡剂及其制备方法，涉及了消泡剂技术领域。以重量份数