Neutralization is a chemical treatment process that involves the addition of chemicals to adjust the pH of wastewater to a neutral range (pH 6.5-8.5).

Oxidation is a chemical treatment process that involves the addition of oxidizing agents (e.g., chlorine, ozone, hydrogen peroxide) to wastewater to remove organic contaminants by converting them into simpler and more stable compounds.

Precipitation is a chemical treatment process that involves the addition of chemicals (e.g., lime, alum, ferric chloride) to wastewater to cause the precipitation of dissolved metals as insoluble hydroxides or salts.

Chemical reduction is a treatment process that involves the addition of reducing agents (e.g., sodium bisulfite, ferrous sulfate) to wastewater to convert toxic metal ions into less toxic or insoluble forms.

Chemical precipitation is a treatment process that involves the addition of chemicals (e.g., alum, ferric chloride, lime) to wastewater to cause the precipitation of phosphorus as insoluble phosphates.

Activated carbon is a highly porous material used in chemical treatment technologies to remove organic contaminants from wastewater through adsorption.

Biological treatment is a chemical treatment technology that utilizes microorganisms (bacteria, fungi, etc.) to break down organic contaminants in wastewater into simpler and more stable compounds.

Disinfection is a chemical treatment process that involves the addition of disinfectants (e.g., chlorine, ozone, ultraviolet light) to wastewater to kill pathogenic microorganisms.

Ion exchange is a chemical treatment process that involves the use of ion exchange resins to remove heavy metals from wastewater by exchanging them for other ions.

Coagulation is a chemical treatment process that involves the addition of coagulants (e.g., alum, ferric chloride) to wastewater to neutralize the charges of suspended solids, causing them to agglomerate and settle more easily.

Activated carbon adsorption is a chemical treatment process that involves the use of activated carbon to remove color from wastewater by adsorbing the colored compounds.

Flocculation is a chemical treatment process that involves the addition of flocculants (e.g., polymers) to wastewater to promote the formation of larger and denser flocs, which are more easily removed by sedimentation or filtration.

Skimming is a chemical treatment process that involves the removal of oil and grease from the surface of wastewater using mechanical devices such as skimmers or oil-water separators.

Sedimentation is a chemical treatment process that involves the settling of suspended solids from wastewater under the influence of gravity.

Activated carbon adsorption is a chemical treatment process that involves the use of activated carbon to remove dissolved organic matter from wastewater by adsorbing the organic compounds.