Intelligent water treatment systems incorporate real-time sensing to ensure that their performance is optimized to avoid under- or over-treatment and that any deterioration in system performance is signaled to permit timely remedial intervention.

AMS has completed the successful demonstration of their SafeGuard™ H2O proof of concept for the treatment of hexavalent chromium (Cr(VI)) at the City of Los Banos in California. The 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.

Aqua Metrology Systems and University of Massachusetts Amherst (UMass Amherst), have partnered to develop a robust online raw-water trihalomethanes (THMs) -precursor analyzer. On 23 January 2018 they received a commitment from Massachusetts Clean Energy Center (MassCEC) through its AmplifyMass program to cost share in the development and assessment of this new online THM-Precursor analyzer.

SafeGuard™ is an automated 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. SafeGuard delivers accurate and reliable results (up to 1 ppb or ± 15%, whichever is higher) with a typical measurement time of fewer than 30 minutes.

MetalGuard™ Chromium is the first fully automated, online multi-stream hexavalent chromium (chromium-6) analyzer for monitoring drinking water with chromium contamination. The online analyzer provides high frequency real-time data on chromium contaminant levels in thirty minutes with sensitivity down to 0.5 ppb.

The MetalGuard™ Selenium analyzer provides real-time, reliable, and accurate data on selenium levels, including selenite and selenate. Results are available as quick as 30 minutes or in less than two hours, with sensitivity down to 1 ppb for certain selenium species. The fully automated analyzer’s robust and stable design ensures it can maintain its sensitivity and calibrated status for an unlimited timeframe while operating reliably regardless of sample matrix conditions.

Aigües de Barcelona decided to monitor THM levels more frequently and they implemented the use of online analyzers to provide accurate and timely information regarding the THM formation in their network.

MetalGuard™ Arsenic is the first fully automated, online arsenic analyzer for monitoring drinking water arsenic levels. The online analyzer provides high frequency real-time data on arsenic contaminant levels in thirty minutes with sensitivity down to 1 ppb.

The Town of Tewksbury, Massachusetts, tested an aeration system for additional THM removal. The Tewksbury WTP measured real-time influent and effluent THM values using the online THM-100™ analyzer. Prior to using the online THM monitor, plant operators waited to receive analytical results from external analysis, often conservatively operating the facility since real-time THM values were not known. The real-time data provided by the online monitor made THM formation within the WTP and distribution system easy to identify.

The Brunswick & Topsham Water District (BTWD) in Maine was receiving high THM results despite implementation of best practices. The use of the THM-100™ online THM analyzer has proven a valuable tool enabling BTWD to optimize operations, better understand treatment processes, resolve THM compliance concerns and validate laboratory performance and results.