Selection standard of activated carbon for water purification
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Posted by Carrie Ge - Filed in Arts & Culture - 861 views
Iodine value: "High iodine value, the adsorption capacity of activated carbon is strong", is the truth that the choice of activated carbon will never change. The iodine value of activated carbon for water purification varies greatly. coal based activated carbon granular If it is used for sewage discharge, then you can choose a relatively low iodine value Some water purification activated carbon; if used in high-standard pure water treatment, the iodine value of the water purification activated carbon will be higher.
Adsorption index: For industrial production or sewage treatment with individual substances exceeding the standard, such as CTC, benzene and other harmful substances, water purification activated carbon needs to have more than 50% of its adsorption capacity to be reduced to the discharge standard. The specific indicators are based on water quality and treatment differences. Decided.
Strength: The adsorption process of water purification activated carbon needs to face the pressure of the water flow, and a certain strength is required to maintain the integrity of the water purification activated carbon. The specific strength index is determined by the water quality gap. The strength and adsorption capacity are inversely proportional. The strength of general water purification activated carbon Between 70-95%.
Ash content: Because water purification activated carbon is mostly made of coal powder, impurities such as ash are inevitable products. A small amount of ash has no effect on water purification activated carbon, but as ash and moisture increase, it will greatly affect the adsorption capacity of water purification activated carbon. https://www.powdered-activated-carbon.com