304 stainless steel activated carbon filter for pre-treatment in sewage treatment plant

In the water quality pre-treatment system, activated carbon filters can adsorb residual chlorine that cannot be removed in the previous stage of filtration to prevent the oxidation and degradation of the subsequent stage reverse osmosis membrane. At the same time, they also adsorb small molecule organic matter and other polluting substances that leak from the previous stage, and have a significant adsorption and removal effect on odor, colloids, pigments, heavy metal ions, and other pollutants in the water. They also have the effect of reducing COD.

Working Principle

Form a layer of balanced surface concentration on the surface of activated carbon particles, and then adsorb organic impurities into the activated carbon particles. The adsorption effect of activated carbon during the initial use is very high. But over time, the adsorption capacity of activated carbon will weaken to varying degrees, and the adsorption effect will also decrease. If the water quality is turbid and the organic matter content in the water is high, activated carbon will quickly lose its filtration function. Therefore, activated carbon should be cleaned or replaced regularly.

The size of activated carbon particles also affects their adsorption capacity. Generally speaking, the smaller the activated carbon particles, the larger the filtration area. So, powdered activated carbon has a large total area and good adsorption effect, but it is easy for powdered activated carbon to flow into lower level equipment with water, making it difficult to control and rarely used. Granular activated carbon is difficult to flow due to its particle formation, and impurities such as organic matter in water are also not easily blocked in the activated carbon filter layer. Its adsorption capacity is strong, and it is easy to carry and replace.

The adsorption capacity of activated carbon is directly proportional to the time of contact with water, and the longer the contact time, the better the filtered water quality. Attention: The filtered water should slowly flow out of the filter layer. New activated carbon should be washed clean before use, otherwise there will be ink black water flowing out. Before installing activated carbon into the filter, a 2-3 centimeter thick sponge should be placed at the bottom and top to prevent the infiltration of large particulate impurities such as algae. After 2-3 months of use, if the filtering effect of activated carbon decreases, a new activated carbon should be replaced, and the sponge layer should also be replaced regularly.

Advantage

1. The operation and maintenance of activated carbon filters are simple and the cost is low;

2. The cleaning speed of activated carbon filter material is fast, and the loss of water head is small;

3. The overall footprint of the activated carbon filter is small, with a beautiful and practical appearance;

4. The activated carbon filter has high filtration efficiency and can achieve 24-hour continuous operation without the need for shutdown and backwashing;

5. All unit operation modes in the activated carbon filter can be flexibly changed according to changes in water volume;

6. The water quality of the activated carbon filter effluent is stable, the filtering effect is good, and there will be no periodic water quality fluctuations;

7. The activated carbon filter does not require additional backwash pumps, electric and pneumatic valves, and has a low one-time investment cost.

Application

1. Boiler and domestic water treatment.
2. Iron and manganese removal from groundwater.
3. Purification treatment of swimming pool/landscape water.
4. Pretreatment of desalination, reverse osmosis, and electrodialysis.
5. Treatment of various industrial wastewater and reclaimed water reuse.