Ammonia nitrogen wastewater can be treated with many adsorption materials, such as zeolite. Here mainly talk about the adsorbent of activated carbon.
Activated carbon is a common adsorption material, mainly in granular and powder form. Activated carbon can be made from animals and plants, coal, petroleum, paper pulp waste liquid, waste synthetic resin and other organic residues, etc., after being crushed and formed with a binder, and then heated, dehydrated, carbonized, and activated.
Activated carbon has a specific surface and particularly developed micropores. Generally, the specific surface area of activated carbon is as high as 500-1700m2/g.
activated carbon gold extraction The micropore volume of activated carbon is about 0.15
~0.9mL/g, and the surface area accounts for more than 95% of the total surface area. The adsorption of activated carbon is mainly physical adsorption, but due to the presence of surface oxides, some chemical selective adsorption is also performed.
wanyang activated carbon is currently a commonly used adsorbent in wastewater treatment. Among them, the granular activated carbon has a simple process, convenient operation and large dosage. *The granular charcoal used is mostly coal-based or husk-based amorphous charcoal, and columnar coal-based charcoal is mostly used. Activated carbon mainly adsorbs nitrogen in the form of ammonia molecules in water, with no selectivity and limited adsorption capacity, so the denitrification efficiency is very low.
