Description

In March of 2001, the US Environmental Protection Agency (EPA) issued its rule setting the arsenic primary drinking water maximum contaminant level (MCL) of 10 micrograms per liter, enforceable as of January 23, 2006. State guidance was provided in August of 2002 and since then, some states have adopted even lower limits, e.g., 5 micrograms per liter. Over the past decade, this regulation has prompted hundreds of municipalities to utilize numerous treatment technologies for the removal of arsenic. Among the various technologies available, the EPA Arsenic Treatment Technology Demonstration Program has shown iron-based media to be effective for arsenic removal.

GFH® DRY Media is a specially designed adsorbent media based on granular ferric hydroxide. It is specifically designed for the removal of arsenic (arsenate (As+5) and arsenite (As+3)) from water and can remove other heavy metals as well. The arsenic removal requires no preconditioning or preoxidation. Applied in a downflow packed bed configuration, it is easily applied to municipal wellhead applications.

GFH Media can be placed into parallel or series pressure vessel systems depending on the removal requirement. To apply GFH DRY Media, our Vantage® PTI Series systems are available in Simplex, Duplex, or Triplex configurations. These systems are preengineered, pre-assembled, and factory tested to minimize installation and startup time.

For arsenic removal applications where the client cannot incur a capital expense for a treatment system, Evoqua offers integrated equipment and service combinations (temporary or permanent), thereby minimizing a plant’s capital investment and reducing overall space requirements. Temporary installations are also available through our mobile fleet, providing the ultimate flexibility to add or remove treatment capacity as your business grows or compliance limits change. This option also saves valuable manufacturing space while minimizing your maintenance and installation requirements.

Once exhausted, spent GFH DRY Media can be disposed of via landfill and classified as a non-hazardous waste after passing a TCLP test. Evoqua can provide full media exchange services and disposal assistance in GFH DRY Media applications.

Specs