CARBON FILTER, water filters

Carbon Filter

>Pre-Carbon filter	The carbon filter that uses activated carbons utilizing chemical absorption eliminates the chlorine generated during the process of treatment for the city water and also other organic compounds and odors to make the city water just as natural water.
>Post-Carbon filter	The filter has the function preventing the propagation of germs and eliminating odors melted into water and bad taste, coloring matter and then generate colorless and odorless clean drinking water.
>PCB filter (Post-carbon block filter)	The filter has the function preventing the propagation of germs and eliminating odors melted into water and bad taste, coloring matter and then generate colorless and odorless clean drinking water.
>TCR filter	By eliminating odors and compounds of taste and color, it provides clean safe water.

Carbon Filter (Service life / 6months)

1. Characteristics of Carbon Filter

• Stable (load) even for rapid change in water quality due to high absorption layer and long contact hours
• Wide range of absorption materials due to the application of compound carbon
• Wide range for selection for absorption materials compared to other filters
• Late reaching to destruction point due to stable move of absorption band as absorption layer is high
•Manufacturing cost is slightly higher as it is container feeding type and complexity of manufacturing process.

2. Principle of Carbon Filter

• Carbonization and high degree activation of carbon substance or substance that contains carbon substance
• Structure after activation shows well-developed minute stigmata and connection of minute stigmata to passage, and Carbon Filter is absorption agent of non-polar nature than polarity due to consolidation of non-fixed form carbon that has wide internal surface area.
• Carbon has physical and chemical attraction to particles in the form of gas or liquid around it and the degree of attraction is different depending on the structure and size of particle of object material. Therefore, mixed substances are eliminated based on the principle of such operation.

3. Structure of Carbon Filter

Absorption property of carbon is based on the shape and surface area of stigmata, and its surface area reaches to 700~1,700. Distribution of stigmata is classified depending on the size of radius of stigma by dividing into stigma series with 3 injection

4. Manufacturing Process of Carbon Filter

Inspection for degree of carbonization and fixed carbon

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Raw material : Coconut foil
Carbonization: Physical change of raw material at 400℃
(Carbon material)
Washing: Water washing
Drying: Abbreviated drying

Inspection for degree of activation (Absorption power, hardness, and distribution of stigmata)

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Activation: 900℃ ~ 1,300℃
Activating Agent: Steam, pharmaceuticals
Cooling: Rapid cooling with cooling system to avoid oxidization
Spallation: User requirements of standard size basis

Inspection for size, absorption strength and feeding density

Selection: Classification by size
Packing: Shipping

PCB Filter (Post-carbon block Filter / Service life 9months)

1. Characteristics of PCB Filter

Combined with absorption function of carbon and filtration function of block, it is large in surface area, excellent in filtration of pollutants, and is constant in its life span. Added with silver, the carbon filter can help to curb the growth of harmful microorganisms in the water through the elution of silver ion, and has antibacterial effect. Its micro-pores of 1 micron absorb and filter out smells, residual chlorine, chromaticity, chemical substances, heavy metal particles and carcinogens from the water.

2. Structural characteristics of PCB filter

As a shaped filter, not in powder, it is strong against impact, abrasion, heat and chemical. And during its initial use, compared to granular carbon, it hardly releases carbon dusts and does not from a flowing path thereby leaving no room for germs to live in the filter. Coconut carbon is used as materials in order to enhance the taste of water by eliminating chlorine and bad smells of tap water. Unlike power carbon, it is in block, making it difficult to degrade its characteristics as a filter, and can maintain its function as a filter for a long time. Mostly, post carbon filters for UF method-based, or reverse osmosis-based water purifiers are used.

3. Definition and structure of PCB filter

PCB refers to a cylinder-shaped activated carbon made by mixing PE resins with pores in tis particles and powder carbon and making it plastic at a high temperature.