Development Of New Natural Sorbent For The Removal of Copper from Industrial Wastewater

Abstract

The general objective of this study was to investigate the removal of Cu (II) from wastewater by adsorption using adsorbent materials produced by pyrolysis of ago-industrial wastes. So in this day and age heavy metal pollution in environment has unavoidably increased. It is the result of no other than human activities. Heavy metals are among the most harmful pollutants released into the environment. Adsorption is the technique of removing heavy metals from wastewater. There have been several studies done to remove heavy metals using various materials. In particular, those heavy metal ions that are toxic to humans have been removed from wastewater using a variety of adsorbents. The most widely utilized adsorbents include activated carbons, plant or lignocellulosic wastes, clays, and biopolymers. Spent coffee-based sorbent synthetized by pyrolysis was used in this study as an adsorbent to extract copper from wastewater. To carry out the experiments, a synthetic wastewater was prepared in the lab. The best conditions for copper removal were determined through batch tests. It was also established the effect of various parameters including pyrolysis temperature, contact time, and metal ion concentration. The optimum conditions obtained were 400°C highest yield of sorbent and maximum adsorption, 1-hour optimal contact time.