By using the proven biofiltration technology, DSP plants combine the best elements of anaerobic and aerobic digestion to provide superior wastewater treatment. Microorganisms attached to the surface of the plants’ media efficiently degrade the organic pollutants in the wastewater.
1. Pre-settling Chamber
This chamber is designed to physically separate solids (sludge) and floating materials (scum) from the incoming water.
2. Anaerobic Chamber
This chamber contains plastic media. Microorganisms attached to the surface of the media degrade and digest organic substances in the wastewater, significant removing organic pollutants.
3. Aerobic Chamber
There is adequate dissolved oxygen as a result of the aeration of air pump. Thus aerobic bacteria thrive on the surface of plastic media and they oxidize and degrade organic contaminants. The filter media in the aeration chamber are backwashed regularly by the backwash system located at the bottom of the chamber. The backwashed effluent is transferred by air lift back to the pre-settling chamber for further digestion.
4. Clarification Chamber
The water flowing to the clarification chamber may carry small quantity of detached biofllm, which shall settle to the bottom and be transferred to Pre-settling tank for further treatment.
The treated effluent is ready for surface discharge or being transferred to the soil application system (depends on the local regulation).
The systems are designed for installations in environmentally sensitive area and the effluent can meet:
Nutrient removal (Optional)
In anaerobic chambers, nitrogen-removing microorganisms grow on the surface of filter media. The microorganisms convert nitrates in the re-circulated water coming from the aerobic chamber to nitrogen gas which returns to the atmosphere without causing any harm.
The disinfection device is installed near the outlet. The treated effluent is air lift to the disinfection chamber, where the effluent makes contact with the chlorine tablets stored in a canister. The contact time can be adjusted via the flow adjustment valve.
Flow rate adjustment
Flow rate adjustment device easily controls the volume of both effluent water and re-circulated water.
Througn electrolytic process of electrodes in the wastewater, phosphate is generated and
precipitated, thus removing phosphorus.
Automatic backwash controlled by timer ensures:
stable and highly efficient treatment performance automatically controlling the thickness of bio-film on the filter media better nitrogen and SS removal the filter media not clogging
Why choose DSP plants