Wastewater Treatment Using Plant Waste as Adsorbents

Abstract

Adsorbents obtained from waste of plant origin are capable of replacing the traditional sorbents for removing of heavy metal ions from wastewater. The raw materials for the production of these sorbents are the chemically modified sunflower husks, as well as husk waste after industrial extraction of melanin. Experimentally determined the adsorption capacities and removal efficiency for copper and iron ions. Depending on the concentration, adsorption capacities varied from 5 to 25 mg of metal per gram of adsorbent. The use of the proposed adsorbents can also solve the problem of utilization of sorption material waste. The plant basis, and the neutral pH (in the order of 6-7) allows for the spent sorbents to be introduced into the soil as a component of the system of trace elements containing copper and iron.