Guidelines for the use of coconut shell activated carbon

How long can coconut shell activated carbon be used?

A: generally, the service life of coconut shell activated carbon is two to three years. The service life of coconut shell activated carbon varies in different industries. In some industries, the service life of coconut shell activated carbon may be only one year, but in some industries, it can even reach 3-4 years. The specific period shall be subject to the actual application.

The service life of coconut shell activated carbon is the longest among the activated carbon products with the same environment and quality.

What factors determine the service life of coconut shell activated carbon?

The service life of coconut shell activated carbon is measured by adsorption saturation. In actual use, the service life of coconut shell activated carbon is mainly affected by the quality, specification, use, adsorbate content, water volume, temperature and pH value of coconut shell activated carbon. Therefore, the service life of coconut shell activated carbon is only a general reference data, and cannot be used as the actual service time.

Summarize the following five factors

01

quality

The specific surface area of good coconut shell activated carbon should be 1000m2/g, and the mechanical strength should be more than 90%.

02

specifications

Because the particles are not easy to flow, the impurities such as organic matter in the water are not easy to block in the coconut shell activated carbon filter layer, which has strong adsorption capacity and fast filtration speed. The selected particle size is generally 10-24 mesh;

03

Daily water yield

If the daily water yield is large, the service life of coconut shell activated carbon will be relatively shortened, and the filtration capacity of each kilogram of coconut shell activated carbon is about 20 tons;

04

water temperature

The higher the water temperature, the stronger the adsorption capacity of coconut shell activated carbon; However, when the water temperature reaches above 30 ℃, the adsorption capacity reaches the limit, and it is possible to gradually reduce.

05

PH value of water quality

When the water is acidic, the adsorption capacity of coconut shell activated carbon to anionic substances is relatively weakened; When the water is alkaline, the adsorption capacity of coconut shell activated carbon to cationic substances decreases. Therefore, the unstable pH value of water quality will also affect the adsorption capacity of coconut shell activated carbon.

The adsorption capacity of coconut shell activated carbon is directly proportional to the contact time with water. The longer the contact time, the better the filtered water quality.