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  • Customizable Combined Wastewater Pre-Treatment Skid for Various Industries
  • Customizable Combined Wastewater Pre-Treatment Skid for Various Industries
Customizable Combined Wastewater Pre-Treatment Skid for Various IndustriesCustomizable Combined Wastewater Pre-Treatment Skid for Various Industries

Customizable Combined Wastewater Pre-Treatment Skid for Various Industries

Combined wastewater pretreatment unit description


The Combined Pre-Treatment Plant is a complete, above-ground headworks requiring minimal space and civil works. Debris, grit/sand and grease can all be removed in this one compact system. For small plants, this system can function as an entire pre-treatment headworks or it can be a simple, economical way to increase pre-treatment capacity.

With the addition of aeration and DAGYEE’s proprietary grease removal system, this unit can become a Septage, Sludge and FOG processing station. Depending on preference or application, a variety of screen types can be incorporated into the compact plant. With over 10 years of experience and 500 installations worldwide, DAGYEE’s application and technical knowledge insures proper sizing and component selection for each specific application.


Combined wastewater pretreatment unit component


Dependable, complete and compact unit Performing the following process steps:

  • fine screening
  • Screenings dewatering
  • Grit separation
  • Grit dewatering
  • Grease separation and removal (optional)



Combined wastewater pretreatment unit working principle


Combined unit for wastewater pretreatment Introduce sewage treatment plants. they perform Fine screening, grit removal and optional grease removal.Wastewater passes through spiral screen, solids Materials larger than the mesh size,The size is captured and removed from the system. they are compaction at the end of the screen conveyor before unloading.


The wastewater flows into the sedimentation tank. finer solid matter still present in wastewater Settled in a tank and conveyed to a hopper by a horizontal screw conveyor is placed at the bottom of the tank. OneInstallation of inclined screw conveyor for sand removal conveying the sand accumulated in the hopper,Drain into a container. filtered water leaves The system passes through an outlet tube placed on the upper level.Grease removal unit can be integrated into DAGYEE combination units are available upon request.


The wastewater firstly enters the tank where a screw screen is placed.





Big size solid materials are filtrated by the screw screen and a screw conveyor moves the solid materials captured up to the discharge point. At the end of the conveyor, they are pressed by the compaction unit before discharge.


The water which has still solid materials in smaller sizes flows through the sedimentation tank. The particles are settled by time and a horizontal screwconveyor transports them to the collection hopper.




Finally, they are conveyed by the grit removal screw conveyor to the discharge point.





Combined wastewater pretreatment unit Parameter




Model Capacity (m³/h) Tank Length (mm) Tank Width (mm) Inlet Flange DN Outlet Flange DN Max.Wash Water (L/S)
DSP-30 30 4200 1200 DN200 DN200 0.5
DSP-50 50 5800 1200 DN200 DN200 0.5
DSP-100 100 7000 1200 DN250 DN250 1
DSP-150 150 7000 1200 DN250 DN250 1
DSP-200 200 8000 1500 DN300 DN300 1
DSP-250 250 8500 1500 DN350 DN350 1
DSP-350 350 10000 1500 DN400 DN400 1
DSP-400 400 12000 1800 DN500 DN500 1
DSP-500 500 15000 2000 DN500 DN500 1

Model Screw Screen Power (kw) Screw Conveyor Power (kw) Grit Removal Power (kw) Grease Removal Power (kw)
DSP-30 0.55 0.25 0.37 0.18
DSP-50 0.55 0.35 0.37 0.18
DSP-100 0.75 0.37 0.55 0.18
DSP-150 0.75 0.37 0.55 0.18
DSP-200 0.75 0.55 0.75 0.18
DSP-250 1.1 0.55 0.75 0.18
DSP-350 1.1 0.55 0.75 0.18
DSP-400 1.1 0.55 0.75 0.18
DSP-500 1.1 0.55 1.1 0.18


Combined wastewater pretreatment unit advantage


  • Residual materials separated according to screenings, settling solids and floating solids
  • Mechanical pre-cleaning in extremely limited space
  • Low requirements for structural conditions
  • Sophisticated design for efficient and low-maintenance operation


Combined wastewater pretreatment unit feature



  • Building material External structure: stainless steel AISI304L/AISI316L
  • Screw: HSS carbon steel or ss AISI
  • 304L/AISI316L
  • Flow rate range 6 or 10 l/s
  • Inlet pipe Flanged



Combined wastewater pretreatment unit application


Pre-treatment of waste water at WWTP
Pre-treatment of waste water from fecal stations
Pre-treatment of industrial waste water


Contact us:
Company: Wuxi Dajiang Environmental Technology Co., Ltd.  DAGYEE
Phone/WhatsApp:+8613961861780
Email: info@dagyee.com
Website: www.dagyee.com