Microfiltration station with a sand filter ꟷ AJF
The sand filter microfiltration station is the final step in bringing the water up to standardized conditions. It can be installed either in a container, modularly or in a frame. The type of installation varies according to customer requirements. The sand or quartz filter removes suspended particles such as sand, cement or oxidized iron from the filtered water.
- Modular and expandable installation
- Activated carbon filter
- Zeolite filter (optional)
- High filtration capacity
- Securing the downstream process
- Production of high quality and consistent water
- Automated without moving parts: saving time and maintenance
- Saving investment costs
Easy to use, the tank housing the filtration process is pressurized. The sand gradually reaches saturation. Once all particles have been removed and transferred to the sand filter, the microfiltration station starts the automatic washing process. A flow of water through the column restores the initial conditions for a new recycling cycle.
- Up to 90% of particles separated> > 40 µm
- Fully automated in a single unit or in a central control system
- Use of filtrate as wash water
- Easy upgrade of already installed equipment
- Flow under supervision
Activated carbon filter
The activated carbon filter is an absorption treatment that filters carbon and removes organic substances or surfactants from hydrogen oxidizers. This process is also present in the pressure vessel. When the carbon is saturated, it is replaced. During absorption, materials may block, so a subsequent cleaning process will automatically reverse the flow of water through the column. Once complete, working conditions are restored to their original state. The contaminated water is returned to the first wastewater collection tank. When cleaning is complete, a new microfiltration cycle can begin again.
Zeolite filter
The zeolite filter removes iron and manganese from the water. The water is first treated with potassium permanganate or sodium hypochlorite. Treatment of the water in the reservoir leads to oxidation of the iron or manganese. A pump transports the water to the zeolite column. Once in the zeolite filter, the water’s counter-current produces a cleaning action. The filtered substances can be eliminated using this technique.