1, acid and alkali neutralization method of acidic waste water and alkaline wastewater, neutralization treatment are available, and to the waste water to join the neutralizer, or with acidic waste water and alkaline waste water, or use of alkaline waste water, waste residue and acidic waste water, try to be treated ", "the purpose of comprehensive treat waste.
2. REDOX method.
Chemical oxidation method is a kind of application is very wide range of water treatment technology, is the use of chlorine dioxide, ozone, hydrogen peroxide, potassium permanganate and other strong oxidizing substances, destroying the chemical structure of water pollutants, make its non-toxic or low toxic substances.
According to the different oxidants, it can be divided into ozone oxidation, chlorine dioxide oxidation and Fenton oxidation.
3 flocculation method
Flocculation method is by adding an appropriate amount of flocculant, the solute dissolved in water, suspended in water samples of colloid or tiny particles agglomeration, forming floc, so as to achieve the purpose of purifying water body.
This method is of low cost, can significantly reduce the water turbidity, chroma, and use some of the multifunctional flocculant can also reduce the microorganisms in the water, reduce the radioactive material, organic material, and the effect of heavy metal ions.
Due to its low cost and simple operation, it is highly valued in the industry, and it should be widely used in water treatment.
The commonly used flocculants are alum, aluminum sulfate, aluminum chloride, polyacrylamide (PAM), etc.
The research and development of flocculation method and multi-function flocculant has been a hot spot in water treatment, which is of great significance to water treatment.