Phosphorus remover is a substance used for coagulating and turbidity removal from urban water sources, as well as for phosphorus removal. It can achieve deep phosphorus removal while coagulating and turbidity removing from urban water sources, thereby reducing the phosphorus content in treated drinking water to below the limit value without altering the original water treatment process or adding large-scale water treatment facilities. It is simple, cost-effective, and can yield significant social and economic benefits.

Phosphorus Remover Main Ingredient Formula

Potassium permanganate 20-30%, ferrous sulfate 5-10%, ferric chloride 20-30%, manganese sulfate 5-10%, polyacrylamide 1-2%, calcium carbonate 1-3%, aluminum chloride polymer 10-20%, sodium silicate 2-4%, activated alumina 5-10%, all proportions by weight.

Phosphorus Remover Usage Instructions

Directly add this product during use, or first dissolve it in a tank at a concentration of 10-20%, stir, and then pump it into the reaction pool. This product is suitable for a wide pH range, with excellent performance under acidic conditions. The dosage is approximately 100-1000 ppm (0.1-1 kg per ton of wastewater), varying depending on the phosphorus content in the wastewater, with the specific dosage typically determined through experimentation.

During the experiment, take a certain amount of raw water, add an appropriate amount of this product (e.g., 500ppm), adjust the pH of the wastewater to 7-8, add a small amount of polyacrylamide PAM for flocculation and sedimentation, then filter to collect the supernatant for phosphorus content measurement. (If heavy metals need to be treated, a secondary treatment with the supernatant is sufficient.)

FeCl3 and AlCl3 solutions are thoroughly mixed and then combined with NaOH solution in a molar ratio of 3:2:14. After mixing and allowing to settle, the product is filtered out, washed repeatedly with water until the effluent is neutral. The mixture is then dried at 100-110°C to form a uniform granular adsorbent. This adsorbent is used in conventional water treatment processes by adding a phosphorus removal adsorption process, which consists of 2-4 phosphorus removal adsorption ponds in series. The construction of the ponds is similar to that of a filter pond, using granular composite iron and aluminum phosphorus removal adsorbent as the filter material, with particle size ranging from 0.5mm to 0.8mm, an adsorption layer thickness of 1.0-1.5m, a hydraulic load of 5m/h-8m/h, and an empty bed contact time of 30-40 minutes. The adsorbent is effective for phosphorus removal with a wide application range; it exhibits excellent pollution removal efficiency, is easy to regenerate, has low raw material costs, and is readily available and safe.

Principle of Phosphorus Remover Operation

The phosphorus removal process of this agent is as follows: after dissolving in water, the complex ions form insoluble salts with phosphate roots while also undergoing strong hydrolysis through dissolution and water absorption. Concurrently, various polymerization reactions occur, producing poly-nuclear hydroxyl complexes with longer linear structures, such as X2(OH)2+4, X3(OH)4+5, X5(OH)9+6, X5(OH)8+7, X5(OH)7+8, X6(OH)12+6, and so on. These iron-containing hydroxyl complexes effectively reduce or eliminate the zeta potential of colloids in water bodies. Through electro-neutralization, adsorption bridging, and the sweeping action of flocs, colloids are aggregated. Phosphorus is then removed by precipitation and separation.

Phosphorus Remover Application Range

1. Phosphorus removal for domestic wastewater treatment plants, particularly suitable for medium-phosphorus stage treatment.

2. Suitable for industrial wastewater containing surface treatment processes.

3. Waste water treatment for food factories.

4. Waste water treatment for papermaking.

5. Waste leachate treatment for landfill sites.

Cautionary Notes

1. Phosphorus removers must remain stable under strong acidic conditions; transportation, storage, preparation, and equipment must use acid-resistant materials or undergo anti-corrosion treatment.

2. The phosphorus remover causes a decrease in acidity and an increase in pH during mixing. When the pH is greater than 3.5 and the concentration is approximately 1%, it's more likely to form insoluble yellow precipitates. Therefore, a slight amount of precipitate is a normal occurrence.

3. For source water with strong acidity (PH<5) or strong alkalinity (PH>11), the PH should first be adjusted to between 6-9 using a PH regulator (except for the phosphorus removal agent's application range), and then the phosphorus removal agent should be added for coagulation.

4. If there are phosphorus scavenger stains on the ground or clothing, they can be washed with a small amount of oxalic acid solution.

5. Dosage Location: Add at the neutralization pond.