Vietnam + Sand Filter + Water Treatment

June 16, 2026 Vietnam

Product: Sand Filter

Country: Vietnam

Application: Water Treatment

Sand filter, also known as a shallow sand filter or media filter, is a device that uses granular media such as quartz sand, anthracite, and garnet as filter materials. It removes suspended solids, colloids, silt, algae, rust, and some organic matter from water through physical interception and adsorption. In industrial water treatment, sand filters are widely used in various scenarios due to their simple structure, large flow rate, low operating cost, and convenient maintenance.

In circulating cooling water systems, sand filters are the most common bypass filtration devices. For example, in the circulating cooling water systems of power plants, chemical plants, and steel plants, sand filters can effectively remove silt and biological slime from the water, delaying heat exchanger scaling and microbial growth, thereby extending equipment cleaning cycles and reducing energy consumption.

In the pretreatment process of reverse osmosis systems, sand filters play a crucial role. Reverse osmosis membranes have strict limitations on the turbidity of the influent, typically requiring a fouling index below 5. Sand filters, as the first barrier in multi-stage pretreatment, can remove large suspended solids and colloids from raw water, reducing the burden on subsequent security filters and reverse osmosis membranes.

In industrial wastewater treatment, sand filters are commonly used in advanced treatment or reuse stages. Wastewater that has undergone biological treatment still contains a certain amount of suspended solids and bioflocs, and direct discharge or reuse may not meet standards. Sand filters can serve as tertiary treatment equipment to further reduce the concentration of suspended solids in the effluent, enabling it to meet discharge standards or reuse requirements. For example, in textile dyeing and printing wastewater, papermaking wastewater, and municipal sewage treatment plants, sand filters are often used in conjunction with coagulation sedimentation or flotation processes to ensure stable effluent quality.

Sand filters also have wide applications in oilfield water injection and mine water treatment. Oilfield water injection has strict water quality requirements; suspended solids in the injected water can clog formation pores and reduce oil production efficiency. Sand filters can effectively remove silt and suspended solids from the injected water, protecting the oil reservoir. In coal mine water treatment, sand filters are used to remove coal dust and rock dust from the water, allowing the treated water to be reused in production or discharged in compliance with standards.

In the food, beverage, and pharmaceutical industries, sand filters are commonly used for the pretreatment of process water. For example, in beer brewing, beverage production, and pharmaceutical water preparation, sand filters remove silt, rust, and residual chlorine from raw water, protecting subsequent activated carbon filters and ion exchange equipment. These industries have extremely high requirements for water quality stability, and sand filters can provide stable effluent quality, ensuring the reliability of the production process.

Sand filters have a wide range of industrial applications, covering almost all scenarios requiring the removal of suspended solids from water. Whether used as bypass filtration for circulating cooling water, pretreatment for reverse osmosis systems, advanced treatment of industrial wastewater, or purification of oilfield injection water and mine water, sand filters are indispensable equipment in industrial water treatment systems due to their high efficiency, stability, and economy. If you have specific application scenarios or water quality parameters, JX Filtration can provide you with customized sand filter selection and system design solutions.

After-Sale Services

Quality guarantee: 12 months after the equipment having been operated.
Satisfied after-sell service: free maintenance and inspection.
Detailed installation instructions, CAD drawing and product qualification certificate.