Activated carbon filter
Ⅰ、Product overview
Activated carbon is the most widely used adsorbent is coal, charcoal and stalks and fruit shell as raw material, through high temperature carbonization and activation treatment, in the middle of its lattice organization, there is a variety of shapes of micro hole, forming the unique porous structure, has a large specific surface area (1 gram of activated carbon with 800 ~ 2000 m 2), so the strong adsorption ability.
Activated carbon filter can effectively remove organic matter, colloid and heavy metal in the water, remove residual chlorine and other bad smells, reduce the color of the water, widely used in factories and towns water purification, as well as reverse osmosis, ultrafiltration, ion exchange system pretreatment process section and improve the inlet water quality of various depth purification equipment.
Ⅱ、Operating principle
The adsorption principle of activated carbon is as follows:
A layer of equilibrium surface concentration is formed on the surface of the particle. The size of activated carbon particles also affects the adsorption capacity. In general, the smaller the activated carbon particle, the larger the filtration area. Therefore, the total area of powdered activated carbon is the largest and the adsorption effect is the best. However, powdered activated carbon is easy to flow into the water tank with water, which is difficult to control and rarely used. Granular activated carbon is not easy to flow due to the formation of particles, organic matter and other impurities in the water in the activated carbon filter layer is not easy to block, its adsorption capacity is strong, easy to carry and replace.
The adsorption capacity of activated carbon is proportional to the contact time with water, the longer the contact time, the better the filtered water quality. Note: The filtered water should flow out of the filter layer slowly. The new activated carbon should be cleaned before the first use, otherwise there will be black ink flow out. Before loading into the filter, activated carbon should be at the bottom and top add 2 ~ 3 cm thick sponge, the role is to prevent algae and other large particle impurities penetration, activated carbon use 2 ~ 3 months = after, if the filtering effect should be replaced by new activated carbon, sponge layer should also be replaced regularly. Activated carbon filter pressure vessel is a kind of pressure vessel filled with coarse quartz sand cushion and high quality activated carbon. A layer of balanced surface concentration is formed on the surface of activated carbon particles, and then organic impurities are adsorbed into the activated carbon particles. The adsorption effect is very high in the early stage. But as time goes on, the adsorption capacity of activated carbon will weaken to different degrees, and the adsorption effect will also decline. If the water quality in aquarium is turbidities, the organic matter content in the water is high, the activated carbon will soon lose the filtration function. Therefore, activated carbon should be cleaned or replaced regularly.
Adsorption principle:
The equipment can remove abnormal color, peculiar smell and heavy metal substances such as mercury, lead, cadmium, zinc, iron, manganese, chromium and so on in clean water, can also remove arsenic, hydride, sulfide, residual chlorine and other high molecular compounds and strontium, radium and other radioactive substances, remove and kill bacteria and E. coli and other carcinogens in water. It is an ideal water supply equipment for drinking water, food, beverage, pharmaceutical, chemical and other industries. Activated carbon filter structure is simple, easy to operate and maintain.
Ⅲ、Technical characteristics
1、High efficiency: 24 hours of continuous work, no need to stop the backwash.
2、Low operating cost: no need for backflush pump with high head and large flow.
3、Low maintenance cost: it has no rotating parts except quartz sand filter material during operation, low failure rate and low maintenance cost.
4、Low one-time investment: no single setting of coagulation pool, clarifier and other facilities, no backwash pump, electric, pneumatic valves and other equipment, small amount of work, one-time investment.
5、Small head loss: single filter material and timely cleaning filter material, small head loss, total head loss ≤0.5m.
6、The inlet water quality requirements are relaxed: the inlet water quality can withstand 150mg/L concentration SS for a long time, and withstand 300mg/L concentration SS impact for a short time, but the outlet water quality remains unchanged.
7、The effluent has stable water quality and good filtration effect. The filter material is clean and timely, which can guarantee the high quality and stable effluent effect without periodic water quality fluctuation phenomenon.
9、Small floor area and beautiful appearance: It integrates the traditional three-stage reclaimed water treatment process into one, saving about 70-80% of land use; The appearance is more beautiful and compact.
