Rapid Purification of sewage using sedimentation Integrated rectangular airlift loop Reactor (RPIR) sewage treatment technology

After pretreatment, the sewage enters the anaerobic tank to complete the release of phosphorus, and then enters the anoxic tank to carry out nitrogen removal by denitrification with the refluxed nitrification liquid, the effluent of the anoxic tank enters the rectangular airlift loop reactor to remove pollutants such as ammonia nitrogen, and the effluent of the reactor enters the advanced treatment unit to further remove SS and TP and then is discharged with standard level after disinfection.

The sludge produced by the system is dewatered and then transported out.

Influent COD is less than or equal to 400mg/L, BOD5 less than or equal to 200mg/L, SS less than or equal to 200mg/L, ammonia nitrogen less than or equal to 40mg/L, TN less than or equal to 50mg/L and TP less than or equal to 5mg/L, the effluent quality of the advanced treatment unit reaches the first grade A standard in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002), of which COD, BOD5, ammonia nitrogen and TP can reach the class IV standard limit requirements in the Environmental Quality Standards for Surface Water (GB 3838-2002).

The airlift circulation biochemical device of standard specification is adopted, efficiently intercepting the activated sludge in combination with biochemical sedimentation function and achieving efficient sewage treatment in combination with nitrogen and phosphorus removal process.

New construction and renovation of urban sewage treatment plant

Promotion technology