Activated carbon filter
| ||||
Detail Application scope: widely used in food, medicine, electronics, chemical industry, industrial waste water and other industries. Working principle: High content of organic matter in the adsorption of activated carbon adsorption principle is: in the particle surface to form a layer of balance of the surface concentration, the organic matter impurity adsorption onto activated carbon particles, using the initial effect is very high. But time a long, active carbon adsorption capacity will be different degrees of weakening, the adsorption effect is decreased. If the aquarium water turbidity, water, activated carbon will soon lose their filtering function. So, the activated carbon should be regularly cleaned or replaced. Activated carbon particle size on adsorption capacity. Generally speaking, activated carbon particles is small, the filter area is large. So, powdered activated carbon with a total area of the largest adsorption effect Paving in black ink, forming because of the best, but powdered activated carbon easily with water flowing into the aquarium, difficult to control,rarely used. Granular activated carbon particles is not easy to flow,water organic matter impurity in the activated carbon filter layer is not easy to block, and its adsorption ability, carrying is convenient to replace. The active carbon adsorption capacity and water contact time is proportional to the contact time is long, filtered water quality is better. Note: filter the water slowly out of the filter layer. The activity of carbon in the first before use should be washed clean, otherwise water outflow. Activated carbon filter is loaded, it should be at the bottom and the top 2 ~ 3 cm thick sponge. To prevent algae and other large impurity particles penetrate,activated carbon used for 2 to 3 months, if the decline in the filtering effect should be the new exchange, activated carbon, sponge layer to change regularly. Activated carbon filter pressure vessel is a filled with coarse sand cushion and high quality activated carbon of pressure vessels. Function: Obvious adsorption removal effect, but also reduce the cod. Can further reduce the RO feed SDI value, ensure the SDI<5 TOC<2.Oppm. in water pretreatment system, activated carbon filters to adsorption level filtering to remove the residual chlorine to prevent reverse osmosis membrane by the oxidative degradation, but also absorption over the previous level leakage of small molecule organic compounds and other pollutants, the peculiar smell in water, colloid and pigment, heavy metals and other. Prevent effectively can manage effectively to complete the activated carbon filter is through the carbon bed. Constitute the carbon bed of activated carbon particles have very many micropores and great specific surface area, has very strong physical adsorption capacity. The water through the carbon bed, water organic pollutants by activated carbon adsorption. In addition, activated carbon surface non crystalline part has some oxygen group, the carbon bed water organic pollutants by activated carbon adsorption. Activated carbon filter is a commonly used water treatment equipment, as water desalination system before treatment can effectively guarantee the equipment service life, improve water quality, prevent pollution, especially after the reverse osmosis membrane, ion exchange resin Lipid and other free oxygen poisoning.
Effect of activated carbon adsorption filter effect and the service life of the main factors: the type and concentration of pollutants,the retention time of air in the filter material, the temperature and humidity of the air. The actual selection to according to pollutant type,concentration and volume and other conditions to determine the form and activated carbon filters are. The upstream and downstream of the activated carbon filter should have good dust filter and its efficiency specifications should be not less than F7. The upstream filter to prevent dust blockage of the activated carbon materials; downstream of the filter stopped activated carbon itself dust.
|
|