Sewage purifier and sewage purification method

Abstract

The invention discloses a sewage purifier, which comprises polyhydroxyalkanoate, diatomite, humic acid, a bioactivator, inorganic metal salt and other substances. The invention also discloses a sewage purification method by utilizing the sewage purifier. A completely biodegradable material polyhydroxyalkanoate is used as a sustained material of the bioactivator, and the completely biodegradable material is slowly degraded and releases the bioactivator so as to realize the long-term high-efficiency purification function of the bioactivator; and by combining the effects of aquatic plants, phosphorus, nitrogen, polycyclic aromatic hydrocarbon and heavy metals in the sewage are purified and treated, so the sewage purifier has better sewage treatment effect.

Description

【Technical field】

[0001] The invention relates to a sewage purifying agent and a sewage purifying method using the sewage purifying agent. 【Background technique】

[0002] With the acceleration of modern urbanization and industrialization, the pollution of rivers and water sources on which human beings depend is becoming more and more serious, and the water body appears to be black and smelly seasonally or all the year round. For example, the Suzhou Creek in Shanghai, the Outer City River in Suzhou, the Qinhuai River in Nanjing, the Pearl River in Guangdong, the Yongding River in Beijing, etc., as well as countless drainage ditches, ponds, seaside or riverside wetlands, park wetlands, etc. Serious pollution, in some places even threatens human drinking water sources, reservoirs, etc. Water pollution seriously threatens the quality of life and health of residents, restricts the development of the city itself, and destroys the beautiful image of the city. Therefore, after dec...