It has been nearly 20 years since the U.S. Environmental Protection Agency (EPA) federal arsenic standard of 10 parts per billion (ppb) was put into place; however, the 2001 regulation remains the same today with the exception of New Hampshire and New Jersey that have implemented a more stringent maximum contaminant level (MCL) of 5 ppb at the state level (EPA, 2001). This paper aims to advance the evaluation and review of a more stringent federal arsenic standard by presenting evidence of an innovation in arsenic removal technology — Aqua Metrology Systems’ (AMS) SafeGuard H2O (SGH2O) — that is proven, validated and commercially available. The technology virtually eliminates arsenic and drastically reduces the cost of removing the toxic contaminant from water supplies when compared to alternative treatment technologies.

A new report from AMS details results from a SafeGuard™ H2O intelligent Cr(VI) treatment system pilot study at Los Banos, Calif. The pilot demonstrated the system’s ability to effectively and affordably convert Cr(VI) into Cr(III) to non-detect level in unchlorinated well water.

This report summarizes the successful demonstration of the innovative SafeGuard™ H2O intelligent Hg(II) remediation system in a bench test study to remove ionic mercury in power plant wastewater. This novel technology generates a stannous ion reagent in-situ via an electrolytic process, providing a cost-effective alternative to highly challenging and expensive existing mercury treatment process.

This report summarizes the successful demonstration of the innovative SafeGuard™ H2O intelligent Cr(VI) treatment at the City of Los Banos in California. This novel technology generates a stannous ion reagent in-situ via an electrolytic process and also features an online Cr(VI) monitoring analyzer to ensure remediation of Cr(VI) to below 10 ppb. The technology provides an economical and reliable treatment for water systems affected by contamination from Cr(VI), a known carcinogen.

Tin has served as an abundant source of useful chemistry throughout history and continues to do so today. From the dawning of the bronze age, to its affordable use in water treatment, the properties of tin have lent themselves toward being effectively utilized for modern applications. This report highlights tin’s pivotal role in human innovation and discusses a novel method that introduces tin as stannous ions for water treatment to provide a safer and more efficient option in a time when green practices are in desperate need and high demand.