Have any Questions?

+86 18626835909

May 11, 2022 View:

Introduction To The Application Of Rotary Lobe Pumps In Sewage Treatment Plants

I. Introduction to the wastewater treatment industry

Sewage treatment is the process of purifying sewage by using certain technical methods to separate or convert organic pollutants, suspended solids, ammonia, nitrogen, phosphorus, bacteria and other pollutants contained in the sewage into harmless substances.

In recent years, as China's industrialisation and urbanisation process continues to advance, social and economic development has been rapid, but the ensuing pollution problem has also become an important issue that needs to be addressed, sewage treatment has increasingly become an integral part of economic development and water resources protection. Therefore, vigorously develop the level of sewage treatment technology and industrialization, is an important way to prevent water pollution and alleviate water shortage. In the coming period, based on the 13th Five-Year Plan and other documents, the sewage treatment industry, which is closely related to the quality of the ecological environment, will be further developed.

Second, the lobe pump in the application of sewage treatment plant advantages

lobe pumps are used in a wide range of wastewater applications, from primary sedimentation tanks - biological sedimentation tanks - secondary sedimentation tanks - thickening tanks - digesters to dewaterer feed and finally dewatered dry sludge transfer, lobe pumps are used in every process section to transfer sludge effluent. Compared to progressive cavity pumps, lobe pumps offer significant advantages such as small footprint, simple maintenance, low spare parts costs and lower energy consumption. In addition, lobe pumps have a strong self-priming capability and reversible forward and reverse operation, and are used as membrane suction pumps in membrane treatment processes. The specific advantages of the lobe pump are as follows.

1、No need to manually fill the pump, that is, has a strong self-priming force, the maximum suction range 8.5m; conveying flow range 1-2000m/h.

2. The maximum medium viscosity is 100,000 cp and the maximum solids content is 60% of the slurry.

3. Forward and reverse rotation is possible, suitable for loading and discharging scenarios, as well as for sewage treatment areas where backwashing of the filter membrane is required.

4、The non-clogging design ensures the passage of large diameter materials, with a maximum passage diameter of 80mm.

5、Triple flow precision casting mould and five-axis linkage process empowered with the pump, making it highly efficient, energy saving and low noise.

6. The double support structure allows the pump to run more stably and the output pressure can be up to 1.8Mpa.

7、Smooth conveying, small pulsation, low shear force, can convey mixed media of gas, solid and liquid as well as media sensitive to cut-off

8、Back cover extraction design, no need to disassemble the pump body and pipeline for maintenance

9. Low speed of 10-650r/min, wear-resistant rubber liner with axial and radial wear plates for longer pump operation and low failure rate.

10、For different working conditions, special devices such as safety valves, heat preservation and cooling can be configured to achieve different working condition requirements.

11、Configuration of reducer to adjust the motor speed, so as to achieve the purpose of adjusting the flow.

12、The application range of the rotary lobe pump is extremely wide and applicable, different materials and different rotors can be used according to different working conditions.

Zhejiang AceGS/DR lobe pumps are widely used in the fields of oil and chemical industry, environmental protection, slurry transfer, sewage treatment, urban flooding and drainage, drought relief and emergency rescue and drainage, etc. Welcome to consult: