A method for removing phosphorus from high-phosphorus wastewater
By using a composite phosphorus removal agent and flocculant made of aluminum salts, iron salts and modified industrial waste residue, the problems of high reagent cost, large sludge volume and unstable phosphorus removal effect in the treatment of high phosphorus wastewater have been solved, achieving efficient and low-cost removal of multiple phosphorus forms.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUXI ZHONGTIAN SOLID WASTE DISPOSAL CO LTD
- Filing Date
- 2026-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing high-phosphorus wastewater treatment technologies suffer from problems such as high reagent costs, large sludge production, unstable phosphorus removal efficiency, and high energy consumption, and are particularly difficult to effectively remove organic phosphorus and complexed phosphorus.
A composite phosphorus removal agent consisting of aluminum salts, iron salts, and modified industrial waste residue is used in conjunction with a flocculant. High-phosphorus wastewater is pretreated by oxidative oxidation through pH adjustment to convert organic phosphorus and complexed phosphorus, which are then removed by precipitation. This reduces the amount of flocculant used and optimizes the precipitation process.
It achieves efficient removal of multiple phosphorus forms from high-phosphorus wastewater, reduces the alkalinity of the produced water and the amount of sludge, lowers process costs, and meets wastewater treatment requirements.
Smart Images
Figure SMS_1