No. 99 Yilan Rd., Xiamen , CN.
+86 186 5928 0806

February 14, 2023

Sheet Metal Fabrication for Wastewater Treatment

At the end of last year, Openex successfully signed an order for the manufacture of about 5000 sets of Three-stage oil trap and sedimentation tanks for a wastewater treatment project. The tanks is installed at the outlet of the sewer to stop oil and garbage from being discharged into it, removing up to 90% or more of the oil and debris contained in the sewage. The tanks will effectively reduce the pressure on the wastewater disposal plant and reduce disposal costs by greatly reducing the amount of work required to clear the wastewater from the grate wells.
The tanks are all made of 1mm thick 304 stainless steel, and the fabrication process involves flattening, cutting, bending and welding, etc.

sheet metal fabrication for wastewater treatment

What is a three-stage oil trap and sedimentation tank?

A three-stage oil trap and sedimentation tank is a wastewater treatment system designed to remove suspended solids, oil, and grease from wastewater before it is released into the environment.

The three stages refer to the three different components or sections of the system, each with a specific purpose.

The first stage is the oil trap, which is designed to remove floating oils, fats, and grease from the wastewater. This is done through the use of skimming devices, such as skimmer weirs, which remove the floating oil from the surface of the wastewater.

The second stage is the sedimentation tank, which is designed to allow the suspended solids in the wastewater to settle to the bottom. The wastewater is allowed to flow slowly through the tank, allowing time for the solids to settle out. The settled solids are then removed periodically, either by mechanical means or through the use of sludge scrapers.

The third stage is the clarification tank, which helps to remove any remaining suspended solids and other impurities from the wastewater. The water is passed through a clarifier, which separates the remaining solids and impurities, allowing the treated wastewater to be discharged.

Overall, the three-stage oil trap and sedimentation tank system is an effective way to remove impurities from wastewater, reducing the impact on the environment and helping to ensure that the treated water meets discharge standards.

About Openex

Openex is a fabricator of high-precision medium to large parts, weldments, and mechanical assemblies. We offer a competitive advantage to a wide range of industries with state-of-the-art metal fabrication, vast welding experience, precision CNC machining, complete assembly services, on-time delivery, and unmatched customer service. Our fabrication capabilities and inspection services meet or exceed the requirements of the most demanding fabrication projects.

Metal products we've manufactured for wastewater treatment include water tanks, grilles, stacked screw machines, air floatation tanks, tanks, membrane flanges, desulfurization towers and tower internals, anode tubes, tube screens, etc.
Contact us at sales3@openex.com.cn or call us at +86 186 5928 0806 for more information about our wastewater treatment fabrication capability or to receive a free project quote today.

About Openex

Openex is home to a full-service, one-stop-shop, contract manufacturing company producing custom large machined parts and fabrications. Our full large fabrication services including large machining, cutting, welding, rolling, punching, braking, testing, painting, and others.
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