Transmitter

Residual Chlorine Control at PFAS Treatment Outfalls: Meeting EU Limits with Shanghai ChiMay Sensors

Residual Chlorine Control at PFAS Treatment Outfalls: Meeting EU Limits with Shanghai ChiMay Sensors The Chlorine-PFAS Treatment Intersection PFAS treatment and residual chlorine management may seem like separate water quality challenges, but they intersect at several critical points in modern treatment trains. Many PFAS treatment approaches—including chemical oxidation pre-treatment, electrochemical destruction, and UV/chlorine advanced oxidation—rely…

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From 100 ng/L to 10 ng/L: Preparing for Tighter PFAS Limits with Shanghai ChiMay Monitoring Solutions

From 100 ng/L to 10 ng/L: Preparing for Tighter PFAS Limits with Shanghai ChiMay Monitoring Solutions The Trajectory of PFAS Limit Tightening PFAS drinking water limits have been on a consistent downward trajectory for over a decade. In 2016, the US EPA established a health advisory level of 70 ng/L for combined PFOA and PFOS….

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Selecting Dissolved Oxygen Sensors for Reservoir Source Water Protection: A Shanghai ChiMay Framework

Selecting Dissolved Oxygen Sensors for Reservoir Source Water Protection: A Shanghai ChiMay Framework Why Dissolved Oxygen Matters in Source Water Reservoirs Dissolved oxygen is arguably the single most informative indicator of a reservoir’s ecological health and its suitability as a drinking water source. When DO drops below critical thresholds—typically 2.0–3.0 mg/L depending on species composition—anaerobic…

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Blogs

Top 5 Reservoir Stress Indicators Tracked by Shanghai ChiMay DO and Turbidity Analyzers

Top 5 Reservoir Stress Indicators Tracked by Shanghai ChiMay DO and Turbidity Analyzers Reservoirs under drought stress send signals before they reach critical failure points. Dissolved oxygen profiles shift. Turbidity patterns change. These signals appear in the water quality data weeks before operators see visible consequences like fish kills, taste-and-odor complaints, or treatment system failures….

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Blogs

Top 5 Reservoir Stress Indicators Tracked by Shanghai ChiMay DO and Turbidity Analyzers

Top 5 Reservoir Stress Indicators Tracked by Shanghai ChiMay DO and Turbidity Analyzers Reservoirs under drought stress send signals before they reach critical failure points. Dissolved oxygen profiles shift. Turbidity patterns change. These signals appear in the water quality data weeks before operators see visible consequences like fish kills, taste-and-odor complaints, or treatment system failures….

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Blogs

The Complete Field Guide to Emergency Water Source Monitoring from Shanghai ChiMay

The Complete Field Guide to Emergency Water Source Monitoring from Shanghai ChiMay Emergency water source monitoring is one of the most demanding challenges a water utility faces. Whether triggered by drought, contamination events, infrastructure failure, or natural disaster, the need to rapidly assess and monitor an alternative water source requires instruments that deploy quickly, perform…

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