Wastewater Treatment System

Sewage Water Treatment Equipment

The domestic sewage treatment process is based on the utilization of sewage or the discharge requirements, and  natural purification capacity of the water to determine the treatment process of sewage treatment.

The treated water, whether used for industry, agriculture or recharge to replenish groundwater, must meet the relevant water quality standards.

Sewage Water Treatment Process

According to the depth of the treatment, it can be divided into primary, secondary and tertiary treatment processes.

Primary sewage treatment applies physical methods, such as sieving, filtration and sedimentation to remove undissolved suspended solids and floating substances from sewage.

Secondary treatment applies biological treatment methods, through the metabolic action of microorganisms to carry out the process of material transformation, the sewage in a variety of complex organic matter oxidation degradation into simple substances. Biological treatment of sewage water quality, water temperature, dissolved oxygen in the water, pH value, etc. have certain requirements.

Tertiary treatment of sewage is based on primary and secondary treatment, the application of coagulation, filtration, ion exchange, reverse osmosis and other physical and chemical methods to remove insoluble organic matter, phosphorus, nitrogen and other nutrients in sewage. The composition of pollutants in sewage is very complex, often requiring a combination of the above methods to meet the treatment requirements.

Sewage primary treatment is pre-treatment, secondary treatment is the main body of the treated sewage can generally meet the discharge standards. Tertiary treatment is the depth treatment, the effluent water quality is better, can reach the water quality standards for reuse.

Sewage Water Treatment Type

Depending on the amount of wastewater to be treated: Integrated wastewater treatment plant or a treatment plant using a steel mixed structure.