Disposal of Arsenic Laden Adsorptive Media
Author: Benjamin Todd Erker
Publisher: ProQuest
Published: 2008
Total Pages: 15
ISBN-13: 9781109082715
DOWNLOAD EBOOK →Due to California's stringent hazardous waste (HW) classification regulations, high capacity adsorptive media (AM) used for the removal of arsenic from potable water are likely to be classified as HW if operated to breakthrough. An alternative is to prematurely shorten the AM life, avoiding generation of HW. A user friendly model was developed to examine the impact of the waste classification of spent AM on the replacement and disposal costs for arsenic removal systems. The model was used to examine the effects of influent arsenic concentration, AM cost, HW transport distance, and disposal fee on total costs associated with both generation of non-HW and HW for a range of AM exhaustion capacities for arsenic. Waste transport and disposal were found to be only 3.2 and 14.3 percent of the cost of media replacement for a system generating non-HW and HW respectively. As a result, large increases (e.g., tenfold) in HW transport and disposal costs had a relatively small effect on the range of arsenic exhaustion capacities of AM over which non-HW generation was less costly. The only realistic scenario in which non-HW generation would become less costly for a large range of exhaustion capacities would be a large (e.g., tenfold) decrease in media cost. Keywords: Adsorption; Arsenic; Costs; Hazardous Wastes.
