Presentation Description
Water Metal and Nutrient Remediation Implementing Activated Alumina Products Potable Water Technology
This paper presents results, including capacities and operating conditions, from various projects involving the removal of metals and other contaminants from entering water ecosystems.
Standard and promoted forms of activated alumina have long been used for removing arsenic and fluoride from potable water; recent studies have shown how they can be very efficient and cost effective at removing other metals and some nutrients. The United States Navy, NFESC after successful trials using iron enhanced activated alumina to remove high arsenic levels from a potable water system, evaluated it for removing copper and zinc from run-off from a metal recycling center. Iron enhanced activated alumina out performed over thirty other media for this application; the potential life of the media for
metal adsorption is thought to be thirty years. CALTRANS is piloting full-scale storm water highway run-off to remove phosphates and nitrates along with metal to protect the ecosystem of Lake Tahoe. Activated alumina and enhanced activated alumina has proven to be the most effective media for the removal of phosphate, nitrates and metals. Industry is implementing the technology into plating firm storage yards, recycling centers and marine environments where metal content in run off waters may be elevated.
