THE STUDY OF ADSORPTION CAPACITY ON BONE CHAR IN WASTEWATER TREATMENT CONTAINED ARSENIC ION

Abstract

Wastewater treatment is one of the urgent and important issues in environmental protection. Nowadays, many methods to treat wastewater in industry were found to which adsorption applied as an effective method. Among possible adsorbents, bone char appeared to be of important application especially for heavy metals. In this study, we are applied char bone char sample as an adsorbent at optimal condition on previous investigation to adsorb arsenic ion (type of As5+ ion) contained in wastewater. The detail in experimental performance, the initial concentration, capacity adsorption, and adsorption time at optimal condition of arsenic ion solution were examined. The results of arsenic adsorption process were found that the optimization of initial concentration to be As5 sample with adsorption capacity of 0.124 mg arsenic ion/g bone char at time of 60 minute. In addition, the optimal adsorption time on As5 sample was also determined as 90 minutes with capacity adsorption of 0.02 mg arsenic ion/ g bone char. The positive research results of the adsorption on bone char have pointed out a possible application of bone char as an adsorbent in future.