Functions of activated carbon:
The surface and interior of activated carbon are filled with nano-scale micro-pore, the smallest is only about 0.05 nanometer. When harmful chemicals in water flow through activated carbon, its molecular group van der Waals force is adsorbed by activated carbon micro-pore, which can effectively adsorb various chemical pollutants in water, such as residual chlorine, organic matter, odor, etc., to achieve the effect of purifying water quality. The larger the sum of specific surface area of surface and internal pore diameter of activated carbon, the stronger the adsorption capacity. The sum of the specific surface area of a gram of activated carbon is about the size of three football fields. In addition, the more mesoporous and porous in activated carbon, the more uniform the distribution, the better the chemical removal rate.
Product scope of application:
Suitable for medium and low concentration or high concentration intermittent emission of exhaust gas working environment. Main fields: electronic components factory, hardware factory, pickling workshop, chemical factory, medical Yao manufacturer, painting workshop, food factory and so on.
The working principle of the equipment is as follows:
Organic exhaust gas is powered by a fan and enters the tower of activated carbon filter under positive or negative pressure. Because of the unbalanced and unsaturated molecular gravity or chemical force existing on the solid surface of activated carbon, when the solid surface contacts with the gas, it can attract gas molecules, make them concentrated and remain on the solid surface, and pollutants are absorbed. After the exhaust gas passes through the filter, it enters. Enter the equipment dust exhaust system, purify the gas to meet the discharge standards at high altitude.
The main factors affecting the adsorption of activated carbon are as follows:
1. 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 washed clean before first use, otherwise black water will flow out.
2. The larger the surface area of activated carbon is, the stronger the adsorption capacity will be. Activated carbon is a non-polar molecule, which is easy to adsorb non-polar or low polar adsorbates. The size of activated carbon adsorbent particles, the structure and distribution of fine pore and surface chemical properties also have a great impact on adsorption.
3. The properties of adsorbate depend on its solubility, surface free energy, polarity, size and unsaturation of adsorbate molecules, concentration of adsorbate, etc.
4. Activated carbon with wastewater PH value generally has higher adsorption rate in acidic solution than in alkaline solution. PH value will affect the state and solubility of adsorbate in water, thus affecting the adsorption effect.
Performance advantages of activated carbon adsorption device:
1. High adsorption efficiency, large adsorption capacity and wide application
2. Easy maintenance, no technical requirements
3. Large specific surface area and good selective adsorption
4. Activated carbon has the characteristics of wide source and low price.
5. Adsorption efficiency is high and capacity is strong.
6. Simple and safe operation