Case Study
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City of Alamosa Evaluates In-Situ Electrogenerated Generated Ferrous Reagent to Replace Bulk Ferric and Support Arsenic Removal
While the EPA is reviewing its MCL recommendations for arsenic, utilities are preparing for the possibility of a more stringent federal standard by evaluating the efficacy of their existing arsenic removal treatment systems. Concerned with having to increase their reliance on bulk chemicals to meet a lower arsenic MCL and the associated inherent concerns, the City of Alamosa evaluated the SafeGuard™ H2O technology that generates a ferrous reagent in-situ. The technology shows great promise for utilities looking to remove As to low levels and eliminate reliance on hazardous bulk chemicals. Through bench-scale testing and a technology demonstration of this novel system, the City of Alamosa has shown it can achieve arsenic removal below 5 ppb with a ferrous dose of 6.5-8 mg/L.
View ResourceApplication Brief: Online THM Monitoring System Supports Cutting Edge Innovation and Research at the Bilbao Bizkaia Advanced Water Treatment Centre
The Bilbao Bizkaia Advanced Water Treatment Centre (CATABB) in Etxebarri, Bizkaia, Spain, is an open platform for innovation and research in water treatment that was designed and built by the Bilbao Bizkaia Water Consortium (BBWC) in 2018. To aid CATABB in a study to better understand the adsorption and desorption process of their GAC filters, an online THM-100™ analyzer was installed at the facility to quickly deliver accurate and reliable data on THM levels. According to BBWC, thanks to the online THM-100™ analyzer, staff in the CATABB facility has been able to quickly detect variations in the THMs concentration and have a greater control of the water quality. In addition, the online THM-100™ analyzer has become a very useful tool for current and future research in the study of the generation of disinfection by-products, and it will enable the opening of new lines of research and collaboration at CATABB.
View ResourceApplication Brief: Tres Rios Water Reclamation Facility Effectively Monitors THM Values With Real-time Online THM Analyzer
The Pima County Regional Wastewater Reclamation Department in Arizona, is using the THM-100™ online THM analyzer to continuously, accurately and reliability monitor THM values in real-time at its Tres Rios Water Reclamation Facility.
View ResourceApplication Brief: SafeGuard™ H2O Hexavalent Chromium Treatment System Demonstration at Joshua Basin Water District
In the Fall of 2022, the Joshua Basin Water District undertook a demonstration of the SafeGuard™ H2O technology to reduce Cr6 down to non-detect levels. SafeGuard H2O proved to be a highly automated process that provided accurate and reliable in-situ reagent generation to reduce Cr6 to below 1 ppb. The capability of SafeGuard H2O to consistently remove Cr6 to non-detect levels creates the opportunity for Joshua Basin Water District and other utilities to blend water from Cr6-contaminated wells and achieve overall system compliance. With SafeGuard H2O, the capital cost of bringing a system into Cr6 compliance can be mitigated by eliminating the need for treatment at all wells.
View ResourceApplication Brief: Online THM Data Help Aigües de Barcelona Minimize Energy Costs and Reduce Carbon Footprint
The THM-100™ online THM analyzer has played an important role in Aigües de Barcelona’s compliance and ESG strategy. Since 2014 Aigües de Barcelona has been using real-time THM data from the online THM analyzer to manage disinfection byproducts within its extensive network, minimize energy costs and reduce carbon footprint.
View ResourceSafeGuard™ H2O Hexavalent Chromium (Cr6) Demonstration at the City of Banning Water Treatment Plant
In search of a reliable and economical treatment solution for Cr6 contamination, the City of Banning undertook a demonstration of the SafeGuard™ H2O in-situ reagent generation system to remove Cr6 down to non-detect levels. The fully automated SafeGuard™ H2O technology uses a certified precursor and an in-situ electrolytic generator to create a non-toxic stannous reagent onsite and on demand. The process is simple, effective, and carbon neutral.
View ResourceMonitoring Real-time Ammonia/Ammonium Levels in Brine in the Chlor-alkali Industry
The online Instran™ analyzer is integral to maintaining safety in the chlor-alkali process. Instran™ is effective at measuring ammonia and ammonium in brines above 80 g/L; it ensures plant optimization by allowing real-time and accurate monitoring, despite the difficulties presented by a high concentration of NaCl in the sample.
View ResourceReal-time Fluoride Measurement in Petrochemical Industry
British Petroleum (BP) replaced one of its existing Tytronics online fluoride analyzers at the Castellón refinery in Spain with the online Instran™ Fluoride analyzer. Monitoring fluoride levels in real-time with a reliable and accurate online water quality analyzer is integral to maintaining safety of the alkylation zone and overall refinery. Since its installation in January 2022, the Instran analyzer has been operating continuously and has met the facility’s needs to monitor fluoride levels in real-time within the alkylation zone.
View ResourceIsleton Water System Demonstrates In-situ Ferrous Generation Technology for Arsenic Remediation
SafeGuard™ H2O is an innovative arsenic treatment approach that generates a ferrous ion reagent in-situ via an electrolytic process to address arsenic contamination effectively and economically. The demonstration of SafeGuard™ H2O at California American Water’s Isleton Water System proved the effectiveness of the technology to mitigate total arsenic contamination in drinking water below 10 ppb, and its ability to deliver an affordable and reliable fully automated treatment process that does not require the use of bulk chemicals like conventional treatment approaches.
View ResourceMetalGuard™

MetalGuard™ is the first fully automated online trace metals analyzer for monitoring municipal and industrial water and wastewater. The system provides real-time, multi-stream analysis for a range of trace metal contaminants.
MetalGuard delivers accurate and reliable results (up to 1 ppb or ± 15%, whichever is higher) with a typical measurement time of fewer than 30 minutes. The system also allows for manually collected samples to be analyzed.
MetalGuard™ Lead Alert!™
A novel automated and unattended real-time lead corrosion risk management system for monitoring the risk of exposure to lead contamination.
The analyzer provides rapid analysis of the safety of drinking water in homes, schools, day-cares exposed to the risk of lead contamination. It is designed to be used independently or in conjunction with SafeGuard™ Lead for rapid low-cost analysis of locations predicted to be at risk for an increase in contamination risk.