Many public water systems in Nevada and throughout the U.S are impacted by the USEPA’s MCL for arsenic. Over the past 10 years since, the promulgation of this revised arsenic standard, many affected public water systems have deployed a variety of technologies for arsenic removal. The primary technologies for arsenic that have emerged, which are in most common use today, are adsorption, oxidation/filtration, and coagulation & filtration. Recently, AdEdge Water Technologies completed one of the largest arsenic removal projects of its kind for Spring Creek Utilities, in Spring Creek, NV. The project used coagulation & filtration coupled with an innovative backwash water recycle system to achieve applicable NDEP drinking water standards with zero discharge. This unique, fast track, high profile project features involved a variety of design considerations, piloting, full scale equipment selection, and integration into AdEdge WaterPOD™ (containerized system) enclosures, chemical feed requirements, and residuals handling. The project was implemented in less than 6 months from start to finish treating three individual well sites with flows of 435 gpm, 725 gpm, and 790 gpm respectively.
The system features AdEdge AD26 coagulation/filtration technology built into three WaterPOD™ systems. Each system consists of separate, completely packaged, pre-piped, instrumented, and automation, housed inside of 40-feet long x 8-feet customized modular buildings, with combined design flows of approximately 1950 GPM.
AdEdge WaterPOD™ systems combine performance with economy, resulting in an ideal solution for sites where space, cost, and installation schedules are critical. The project also features an AdEdge H2Zero™ backwash recycle system. Included is a vertical backwash holding tank with adequate capacity for temporary storage of the backwash water, controls, flow meter, and pump skid with a control panel. Backwash water is collected, separated and re-processed through the treatment system reclaiming up to 95% of the backwash water with no surface discharge. In addition, AdEdge AD-IN™ CO2 gas injection modules for pH control to enhance and optimize the arsenic treatment process.
This project truly represents the effectiveness of good design engineering and innovative treatment technologies to solve today’s arsenic removal challenges. For more information contact AdEdge Water Technologies, LLC. 1-866-823-3343 info@adedgetechnologies.com www.adedgetechnologies.com
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