Multifunctional sewage treatment agent and preparation method thereof

The invention discloses a multifunctional sewage treatment agent and a preparation method thereof, and belongs to the technical field of sewage treatment. The multifunctional sewage treatment agent isprepared from the following components in percentage by mass: 3-15% of polyamidoamine, 3-15% of sodium silicate, 6-25% of aluminum ferric chloride sulfate, 3-15% of polyferric sulfate and the balanceof water. According to the sewage treatment agent, the sewage applicable PH value range is wide, and the PH value of most sewage does not need to be regulated; the chroma and oil content of the sewage can be removed while the sewage COD is removed; operability is high, and the operation steps during sewage treatment are simplified; and multiple functions are achieved simultaneously, and the sewage treatment cost is lowered. 本发明公开了一种多功能污水处理剂及其制备方法，属于污水处理技术领域。本发明的多功能污水处理剂，按照质量分数计，由以下组分组成：聚酰胺-胺3~15%、水玻璃3~15%、双酸铝铁6~25%、聚合硫酸铁3~15%，余量的水。本发明的污水处理剂，污水适用PH值范围广，大部分废水无需调节PH值；在去除污水COD的同时，可去除污水的色度及含油量；可操作性强，简化了污水处理时的操作步骤；多种功能同时存在，