Sewage treatment device and process based on algae treatment

The invention discloses a sewage treatment device and process based on algae treatment. The device comprises a denitrification filter tank, an ozone reaction device, a biological aerated filter tank and an algae treatment device which are connected in sequence, wherein the denitrification filter tank is used for removing ammonia nitrogen pollutants obtained by water extraction, the ozone reaction device is used as a pretreatment unit of the biological aerated filter tank, and organic matters can be effectively removed through ozone-aeration combination, so that the biodegradability of sewage can be improved. According to the algae treatment device, heavy metals and ammonia nitrogen in the water body are adsorbed by algae, and the device not only can remove non-soluble pollutants, but also can effectively treat soluble pollutants such as heavy metals and refractory organic matters, and can meet the effluent requirements. 本发明公开了一种基于藻处理的污水处理装置及工艺，该装置中包括依次连接的反硝化滤池、臭氧反应装置、曝气生物滤池和藻处理装置；其中，反硝化滤池用于去除水提的氨氮污染物，臭氧反应装置作为