Rural Drinking Water
Rural Supply Station Monitoring in Wuyi County, Zhejiang
1 / 2Project Background
The Yuanmingsi natural-village supply station in Wuyi's Baimu township treats water through gravity sand filtration — a simple, robust rural process that still needs reliable data for its chemical dosing.
Customer Challenge
Gravity sand filtration depends on timely coagulant dosing, and disinfection on correct sodium-hypochlorite feed. Without inlet and outlet monitoring, the station's dosing was guided by habit rather than data.
The TENGINE Solution
Twenty-one instrument sets were deployed: MTU high-precision turbidity analyzers on the inlet, and TMS-D6000 chlorine analyzers with pH instruments on the outlet — giving the station continuous data for both coagulant and hypochlorite dosing.
Implementation
Twenty-one sets were installed at the village stations' inlet and outlet points, feeding data to the stations' operation.
Project Results
Coagulant and hypochlorite dosing now follows accurate measurement, outlet water stays safely compliant, and the village supply runs with new confidence.
Related Case Studies
The plant's raw water comes from an upstream reservoir whose quality swings constantly: sediment wash-in from rainstorms, summer algae blooms and organic-matter spikes, drought-period changes. Worse, by the time abnormal water reached the plant intake and was detected, several hours had already passed — the best window for response was gone.
The upgraded plant demanded high accuracy on difficult measurements — low-turbidity drinking water and residual chlorine among them — with instruments that integrate stably into the plant's automation system. Site conditions threw up real problems too, such as abnormal inlet flow conditions, and the schedule required fast technical response and on-site problem solving.
A surface water plant has many treatment stages, and running them on operator experience alone leaves blind spots: filter backwash timing, sedimentation-basin sludge discharge and disinfectant dosing could not be adjusted dynamically against actual water conditions, risking off-spec finished water.
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