Adsorption properties of expanded graphite on domestic sewage

This paper studied the properties of the domestic sewage adsorption of expansion graphite. By comparing static adsorption with dynamic adsorption, determining the domestic sewage adsorption performance of the expansion graphite according to the change of the indexes of the domestic sewage, studied the adsorption performance of the regenerative graphite. The results indicated that the domestic sewage adsorption performance of the expansion graphite is significant, static adsorption is better than dynamic adsorption, and expansion graphite has high rate of regeneration, can be used repeated. After the adsorption by expansion graphite, the indexes of pH value, fluoride and cyanide can reach the required standard, but the indexes of odor, color and boron are high, so the processed domestic sewage can´t be drank directly.