With the growth of population and the process of industrialization, the problem of phosphorus pollution in water bodies is becoming increasingly serious. Phosphorus is an important nutrient element, but excessive phosphorus will lead to Eutrophication of water body, algae outbreak and water quality deterioration. Therefore, research and development of phosphorus pollution control technologies have become crucial. This pape
1、 Basic principle of polymerized Iron(III) sulfate
Polymerized Iron(III) sulfate is a commonly used phosphorus removal agent. Its basic principle is to remove phosphorus from water by combining with phosphorus in water to form insoluble sediment. Polymerized Iron(III) sulfate is a kind of iron salt compound, which can be hydrolyzed into a variety of iron hydroxides in water and form a variety of hydrates. These hydrolysis products have good adsorption properties and can form stable complexes with phosphates.
2、 Phosphorus removal mechanism of polymerized Iron(III) sulfate
Polymerized Iron(III) sulfate reacts with phosphate in water to form insoluble ferric phosphate precipitation. This process can be divided into two main steps:
Adsorption: adsorption occurs between ferric hydroxide in polymerized Iron(III) sulfate and phosphate to form surface complex of ferric phosphate. This surface complex has high adsorption capacity and can effectively adsorb phosphate in water.
Precipitation: the adsorbed ferric phosphate forms insoluble sediment under appropriate conditions, and then precipitates to the water bottom. These precipitates can be collected and removed by sedimentation treatment equipment or sedimentation tanks, thereby achieving phosphorus removal.
r will introduce a widely used method for phosphorus pollution control - the phosphorus removal mechanism of polymeric Iron(III) sulfate and its application.
3、 Application of polymerized Iron(III) sulfate
Polymerized Iron(III) sulfate is widely used in the field of phosphorus pollution control. It can be used in urban sewage treatment plants, Industrial wastewater treatment plants, farmland drainage treatment and other fields.
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