Hidden Valley Lake Community Services District Pilots Innovative Cr(VI) Remediation System
Tuesday, August 6, 2019: 2:10 p.m.
An innovative approach to generate a stannous ion reagent in-situ via an electrolytic process has been evaluated at the Hidden Valley Lake Community Services District (HVLCSD) during a pilot demonstration that studied the efficacy of the technology to continuously reduce Cr (VI) to below 10 ppb. The HVLCSDpilot site has a Cr (VI) level of 18-22 ppb with a well output of 1,100 gallons per minute (gpm).The piloted technology features an online Cr (VI) analyzer to control and monitor system performance (http://www.aquametrologysystems.com/learn-more-cr/), in real time, making the system an ideal solution for HVLCSD’s remote location since unattended operation is possible. Scale demonstrations often generate substantial waste streams of treated water that must be wasted; however this was not the case with HVLCSD. The pilot system was designed to minimize treated waste streams while demonstrating performance at scale, limiting the size and cost of the pilot unit, aiding the rapid deployment of the technology and minimizing disruption to the pilot site owing to its very small footprint. Results of this novel Cr (VI) remediation system pilot at HVLCSDwill be detailed.