Detailed explanation of the structure of activated carbon filter element

In modern water treatment technology, activated carbon filter elements have become an indispensable part of many water treatment equipment and household appliances with their excellent adsorption capacity and purification effect. This article will explore the structure of activated carbon filter elements in depth, from material selection to process, to reveal the secret of its efficient filtration for you.

Material selection: high-quality activated carbon, laying a foundation for high efficiency
The core of the activated carbon filter element lies in the activated carbon layer inside it. Activated carbon is a porous carbon-containing substance with a highly developed pore structure and a huge specific surface area, which makes it have a strong adsorption capacity and can effectively remove organic matter, residual chlorine, odor, pigments and other impurities in water.

In terms of material selection, high-quality activated carbon filter elements usually use coconut shell activated carbon or coal-based activated carbon as the main raw material. Coconut shell activated carbon has a more developed pore structure, stronger adsorption capacity, and is harmless to the human body, making it the first choice for high-end filter elements. Coal-based activated carbon is widely used in mid- and low-end filter elements because of its relatively affordable price and stable adsorption performance.

Structure: multi-layer design, collaborative filtration
The structural design of the activated carbon filter element is also crucial. In order to improve the filtering effect, modern activated carbon filter elements usually adopt a multi-layer structure design, and each layer undertakes different filtering tasks.

Generally speaking, the structure of the activated carbon filter element can be divided into the following layers:

Outer protective net: prevents the leakage of activated carbon particles and increases the strength of the filter element.

Pretreatment layer: usually made of PP cotton and other materials, used to remove large particles of impurities in the water, such as mud, rust, etc.

Activated carbon layer: core filter layer, using high-quality activated carbon, adsorbing organic matter, residual chlorine, odor, etc. in the water.

Post-processing layer: according to specific needs, materials such as KDF and ceramics can be added to further remove heavy metals, bacteria, etc. in the water.

Process: fine processing to ensure quality
The manufacturing process of the activated carbon filter element also affects its filtering effect and service life. High-quality activated carbon filter elements need to undergo multiple processes of fine processing, including raw material screening, crushing, molding, activation, packaging, etc.

During the activation process, the activated carbon reacts with the gas at high temperature to form more micropores and mesopores, thereby increasing its adsorption capacity. The encapsulation process ensures the sealing and durability of the filter element, preventing leakage or damage during use.