Preparation method of water treatment agent

Abstract

The invention provides a preparation method of a water treatment agent. The preparation method comprises the following steps: preparing the following raw materials: phosphonate, polyquaternary ammonium salt, polycarboxylate, organic phosphonate and a sulfonate copolymer; adding phosphonate, polyquaternary ammonium salt and water to a reaction kettle and fully stirring the raw materials; heating the raw materials at a certain temperature to dissolve phosphonate and polyquaternary ammonium salt to form a colloid; cooling a colloidal mixture obtained in the step III, adding polycarboxylate and organic phosphonate while stirring the colloidal mixture, raising the temperature at the same time and stirring the materials at the temperature; cooling a mixture obtained in the step IV, adding the sulfonate copolymer while stirring the mixture at the same time and continuously stirring the materials after completing adding the sulfonate copolymer; discharging, cooling, drying and grinding a mixture, thus obtaining the water treatment agent. The water treatment agent has the characteristics of high efficiency, low cost, wide application range, no corrosion and no toxicity, and not only can be used for removing heavy metals in sewage but also can play a good role in removing the pollutants except the heavy metals.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a preparation method of a water treatment agent for treating sewage. Background technique [0002] Sewage treatment technology plays a very important role in water saving, energy saving and other issues, but at the same time, the use of sewage treatment chemicals also has a certain impact on the environment. In the cooling water system, in various occasions where the water temperature is higher than the ambient temperature, the scaling of calcium carbonate and other inorganic salts will bring serious consequences. In recent years, in the field of water treatment, the application of alkaline water treatment technology that does not adjust the pH value is increasing. Among them, the addition of corrosion and scale inhibitors, low-phosphorus and phosphorus-free formulas are more and more widely used. Phosphorus-free green Water treatment agents have become a hot...

AI Technical Summary

Problems solved by technology

[0018] The existing water treatment technology has treated harmful substances such as heavy metals in industrial wastewater, but it cannot achieve a good removal effect on harmful substances other than heavy metals in wastewater, especially when dealing with industrial circulating water. matter of matter

The chemicals used in the existing wastewater treatment still have problems such as poor treatment effect, slow settling speed, high cost, and serious corrosion of equipment.