Profile: Nichem Co. is a supplier of activated carbon. Activated carbon absorbers help remove the taste and smell of natural organic compounds from all kinds of substances. We design and produce activated carbon absorbers for any absorption system. We specialize in the water and waste water industry. Our absorbers contain activated carbon. Activated carbon - also known as activated coal or charcoal - is an effective adsorbent because it is very porous. It has millions of tiny holes that increase its surface area by a significant amount. The smallest amount of activated carbon can have a surface size of many thousands of feet. So, it is an excellent material for adsorbing contaminants from other substances, whether gas or liquid.