IndustrIal Water Treatment and EnvIronmental TechnologIes 

Ekolser-DBF offers comprehensive Industrial Water Treatment and Environmental Technologies Services specified below for all types of Vehicle and Industrial Washing Facilities:

Water Softening Plants

• Resin-based Water Softening Plants

• Reverse Osmosis Demineralization Water Softening Plants

Wastewater Treatment and Recycling Plants

• Physical Water Treatment and Recycling Plants

• Chemical Water Treatment and Recycling Plants

• Biological Water Treatment and Recycling Plants

• Combinations of the Systems Above

• Oil Separator Units

A water softener device will be used to remove hardness-causing calcium ions present in the mains water using ion-exchange cationic resin. (In the event that the mains water hardness is below 10Fr, a softening unit will not be installed.)

The hardness of the water passing through the softener device will be at a level that leaves no residue during the washing process. The softened water will be collected in a softened water tank of appropriate capacity and presented for use.

İlettiğiniz teknik şartname/proses açıklama metninin orijinal cümle yapılarına, numaralandırmasına, parantez içi bilgilerine ve teknik terimlerine sadık kalınarak yapılan birebir İngilizce çevirisi:

It defines the necessary equipment and processes for the treatment of wastewater taken from vehicle washing facilities. Wastewater is treated by being subjected to several treatment processes.

During each washing operation, approximately 15-20% of the total water volume used is lost. (While a certain amount of water is lost due to the movement of the train and evaporation, the moisture remaining in the sludge discharged from the treatment plant also constitutes water loss.) 90% of the dirty water entering the pits is recycled, therefore 70%-80% of the total water used can be recycled.

The dirty water coming from the vehicle washing process is discharged into the channel located between the rails, and from here, with the help of gravity, it is discharged into the underground concrete dirty water collection tank.

1. In the Wastewater Treatment and Recycling system, the wastewater collected from the washing area will be passed through the treatment system described below;

2. The wastewater collected from the washing area via the wastewater collection channel is first passed through a shallow pit called a screen/grate. While passing through here, large pieces (waste cotton/rags, leaves, plastic bags, etc.) are removed from the water to prevent them from damaging the pumps and other equipment.

3. Afterwards, the wastewater enters the 1st pit called the sludge sedimentation basin. At the inlet, a flocculant agent is added to the wastewater to make the sedimentation process effective. In this pit, solid particles with a density higher than water settle and are separated from the water. The flocculant agent will be dosed into the wastewater with a dosing pump.

4. Wastewater flows from the sedimentation basin to the oil separation basin. In the oil separation basin, oil particles present in the wastewater that are lighter in density than water accumulate on the water surface and are separated from the water. By means of a baffle placed at the inlet of the oil separation basin, the upward movement of the wastewater from the bottom is ensured, and oil with a density lighter than water accumulates on the water surface. With a baffle placed at the outlet section of the unit, oil-free water is ensured to pass to the settling & aeration basin.

5. Pre-treated water freed from solid particles and oil is pumped to the above-ground "Package Treatment Unit" with a submersible pump. Coagulated and flocculated water is distributed evenly along the clarifier using well-designed distribution deflectors in the sedimentation line. The specially designed and placed lamella separator allows the floc pieces to settle by gravity and be removed from the water with the upward movement of the water. These flocs, called sludge, are removed at regular intervals by opening the valve located under the unit.

6. Oil molecules remaining in the wastewater, having a specific gravity less than 1, collide and grow while moving upwards between specially produced plates placed at certain intervals inside the unit. Due to the design and placement of the plates, the colliding oil molecules are directed to the water surface.

7. Oil molecules encountered during this movement collide to become larger molecules and form an oil layer on the water surface that can be removed by skimming. This oil layer is automatically skimmed and removed at regular intervals with a chain scraper.

8. In order to adjust the pH value of the treated water, the effluent water will be checked with a pH meter and adjustment will be made with soda solution.

9. The generated sludge will be collected in the sludge drying bed.

10. At the outlet of the package unit, the water whose pH has been adjusted is taken into the underground balancing and aeration basin.

11. In the underground aeration basin; air provided from the blower is fed into the water via diffusers to perform aeration and balancing processes. With aeration, the biological values of the water are also increased, preventing odor formation.

12. Wastewater is pumped from the aeration and balancing basin to the filtration units with a booster pump.

13. Water passing through the Separator Filter, Multi-layer Quartz Filter, and Active Carbon Filter flows into the treated water tank to be reused in certain stages of the washing process.

14. In addition, a mains water supply line will be routed to the underground treated water tank.

Operating Principle of the System;

The mixture of solids, sludge, oil, and water coming from the vehicle washing is first passed through a pit called the coarse screen. While passing through the screen, large solid wastes such as leaves, rags, plastic bags, paper, etc., are retained on the screen.

From here, the wastewater flows into the sludge settling pit. The purpose of the sludge settling tank is to ensure the removal of solid particles with a specific gravity heavier than water by settling.

The wastewater flows from the settling unit into the oil separation unit. A baffle placed at the inlet of the pit directs the wastewater from bottom to top. Hydrocarbons and oil particles contained in the wastewater, which have a density lower than water, move toward the surface, collect at the surface, and are separated from the water. Water freed from solid particles and oil moves into the pre-treated water pit, which is the third treatment stage.

In the pre-treated water tank, air is supplied to the water through diffusers via a blower to increase the biological quality of the water. By introducing oxygen into the water, biological treatment of the water is achieved and odor formation is prevented. Balancing of the content within the water mixture will also be ensured.

Water from this unit is pumped to the above-ground filtration units by a submersible pump / centrifugal pump.

The treated water, passing through the above-ground separator filter, automatic backwash multi-layer sand filter, and automatic backwash active carbon filtration units, flows into the polyethylene treated water tank to be reused in certain stages of the tram washing process. From here, it is used in the tram washing process via the relevant pumps.

In order to ensure the continuous presence of water in the system, there is 1 polyethylene network water tank with a capacity of 10 tons. When necessary, feeding is supplied to the treated water tank via the feed pump.