Composite water treatment agent, and preparation method thereof

Abstract

The invention discloses a composite water treatment agent. The composite water treatment agent consists of 0.3 to 45 weight parts of permanganate, 0.3 to 45 weight parts of ferrate, 1 to 10 weight parts of sodium silicate or 0.1 to 1 weight part of periodate, and 10 to 30 weight parts of sodium hydroxide or potassium hydroxide based on the weight of pypocholoride solution at the mass percent concentration of 10 to 30 percent. According to the composite water treatment agent, permanganate is combined with ferrate, the synergistic effect between the permanganate and the ferrate is fully exerted, the defects of the permanganate and the ferrate are eliminate, the capacity of removing ammonia nitrogen, organic matter, manganese ions, odor and chromaticity in water is enhanced, a water treatment effect is greatly improved, and water treatment cost is reduced. The prepared mixed solution can be stored stably for a long time, a process is simple, and the agent is convenient to use, and improves water treatment safety.

Description

technical field [0001] The invention relates to a water treatment technology, in particular to a composite water treatment agent and a preparation method thereof. Background technique [0002] With the increasingly frequent economic activities of the people in our country, the pollution of water bodies caused by soil erosion, production and domestic sewage is becoming more and more serious. The pollution components include a variety of trace organic pollutants, heavy metal ion pollutants, and high concentrations of large Molecule natural organic matter. Simply relying on increasing the dosage of coagulant can no longer solve the problem. Organic and inorganic polymer coagulants (such as polyacrylamide, activated silicic acid, etc.) can increase the floc size through the adsorption and bridging effect between destabilized colloidal particles, so as to increase the settling rate and improve the separation effect. The application effect in production is obvious, but for the ...

AI Technical Summary

Problems solved by technology

Simply relying on increasing the dosage of coagulant can no longer solve the problem

Organic and inorganic polymer coagulants (such as polyacrylamide, activated silicic acid, etc.) can increase the floc size through the adsorption and bridging effect between destabilized colloidal particles, so as to increase the settling rate and improve the separation effect. The application effect in production is obvious, but for the problems of hard-to-destabilize colloids, ammonia nitrogen, and heavy metal ions exceeding the standard, the effect of polymers is relatively poor, and the treatment effect is not obvious

It shows that the conventional water treatment process has been unable to cope with complex problems such as low temperature and low turbidity, trace organic pollutants, excessive heavy metal ions, and severe odor, and cannot adapt to the current changes in water quality.