The invention discloses a salt-tolerant advanced phosphorus removal agent, which comprises the following components by mass: 80–95 parts of bentonite, 1–5 parts of shell powder or lime powder, 1–8 parts of iron filings and 4–20 parts of lanthanum chloride. Most components of the salt-tolerant advanced phosphorus removal agent are natural minerals with stable structures and no toxic effects on aquatic organisms. It has high selectivity for phosphorus, forms stable binding and is not easily desorbed or re-released. It shows excellent phosphate removal effects in both freshwater and seawater, and can reduce phosphorus to below 0.02 mg/L. The preparation process of the salt-tolerant phosphorus removal agent is green, environmentally friendly and simple, enabling large-scale production. It is convenient to dose with high removal efficiency, and can be covered on the water bottom to prevent phosphorus release from sediment, providing an excellent solution for phosphorus removal from saline wastewater.

Country Code: CN

Application Number: CN202111091774.6