Chemical methods The chemical method used to treat waste water in cadmium include: neutralization, oxidation and reduction. All these methods are chemical agents used should be the expensive method. People use chemical methods to eliminate the substances dissolved in the water supply system and self-contained. Sometimes the methods used for the preliminary processing before biological treatment or after this phase as a method of sewage waste into the water source to the last
đang được dịch, vui lòng đợi..
