Sand Filter Systems
Pressure Sand & Carbon Bed Filter is most suitable for several applications in the water treatment industry due to its robust features such as stability, micro-porous and strength. Our sand filters are designed horizontal or vertical type with back wash facility according to the specific requirement of customers. Our filters are manufactured from the best quality of carbon steel plates. Large vessels are provided with access manhole. Filter media in sand filter consists of a bed of fine quartz sand supported by layers of graded well washed selected gravels.
Sand filters have proven effective in removing several common pollutants from storm water
runoff. Sand filters generally control storm water quality, providing very limited flow rate control.
A typical sand filter system consists of two or three chambers or basins. The first is the sedimentation chamber, which removes floatables and heavy sediments. The second is the filtration chamber, which removes additional pollutants by filtering the runoff through a sand bed. The third is the discharge chamber. The treated filtrate normally is then discharged through an under drain system either to a storm drainage system or directly to surface waters. Sand filters take up little space and can be used on highly developed sites and sites with steep slopes. They can be added to retrofit existing sites. Sand filters are able to achieve high removal efficiencies for sediment, biochemical oxygen demand (BOD), and fecal coliform bacteria. Total metal removal, however, is moderate, and nutrient removal is often low.
Pressure Sand & Carbon Bed Filter using the most efficient media filtration technology. Pressure sand filter is used to remove the visible and suspended impurities such as dust particles, sand, heavy metals and others. It is most recommended product for the systems with high sediment, turbidity, sand, and silt. We design and manufacture sand filters by considering a range of suspended impurities. Our unique product design ensures the effective impurities elimination, the maximum surface area utilization and minimum pressure drop across the pressure bed.
Quartz sand filter
Quartz sand filter can effectively remove suspended solids in the water and has significant effects on the removal of colloids, iron, organics, pesticides, manganese, bacteria, viruses and other pollutants in the water. besides advantages of small filtration resistance. large specific surface area, strong acid and alkali resistance, resistance to oxidation, PH scope of 2-13 and anti-pollution. As a unique advantages of the quartz sand filter, the filter is able to run self-adaptively through the optimization of the filter media and filter design, so that the filter material has a strong adaptivity to raw water concentration, operating conditions, pre-disposal process. i.e. the filter bed automatically forms a non-uniform state during filtration, which helps to guarantee the water quality under a variety of operating conditions and spread the filter material when backwashing, achieving good cleaning effect. The sand filter has advantages including fast filtering speed, high filtration precision and large interception capacity, etc. The filter is used in the industrial water, domestic water and municipal water systems requiring outflow turbidity of not greater than 5mg/I and complying with drinking water quality standards and for the removal of suspended solid sand solids in industrial wastewater: it can be used as ion exchange and pretreatment for softening desalination system and can also be used in the coarse filtration of water with undemanding industrial water quality, swimming pool circular processing system and cooling circulating water purification system.
Activated carbon filter
Activated carbon filter is used for the removal of color, taste, residual chlorine and organics its main mode of action is adsorption. Activated carbon is an artificial sorbent. Activated carbon has developed pore structure and huge specific surface area, so it has a strong adsorption capacity for the dissolved organics in the water, such as benzene and phenolic compounds, and has better removal efficiency for organic pollutants which are hard to be removed by biological and chemical methods, such as chroma, stench, surfactants, synthetic detergents and dyes, etc. Granular activated carbon is able to remove 85% of Ag A , Cr2 + and Cr04 A 2 in the water Through the activated carbon filter bed, the suspended solid in the water is less than 0.1 mg/L, COD removal rate is generally 40% to 50% and free chlorine is less than 0.1mg/I. It can be used as pretreatment of ion exchange, electrodialysis and reverse osmosis in pure water technology so as to remove organics, colloids and residual chlorine; it can be also used as an advanced treatment mean after the secondary treatment to ensure the quality of reusewater.
Applications for sand filtration :
Preparation of cooling water
Treatment of waste water
Production of drinking water
Filtration in swimming pools
Pre filtration for membrane systems
Filtration of gray or surface water
Swimming pool water<o:p>
Technical parameters sheet for Mechanical sand carbon filter
){kind=link}