TENGINE — Tengine Innovation

Rural Drinking Water

Emergency Residual-Chlorine Monitoring for Rural Drinking Water in Fujian

Fujian, China 2020 Rural Water Utility
Emergency Residual-Chlorine Monitoring for Rural Drinking Water in Fujian — project photo 11 / 2

Project Background

During the pandemic, chlorine control in rural drinking water became a frontline issue: surface-water chlorine levels could spike, and there was risk of contaminated inflows — while traditional monitoring offered too few parameters, too little accuracy and no real-time grip on residual chlorine at either the source inlet or the supply outlet.

Customer Challenge

The emergency demanded instruments that could be deployed fast, run unattended with minimal consumables, and keep chlorine measurement accurate at both ends of the rural supply network — all under pandemic restrictions on personnel movement.

The TENGINE Solution

TMS-E3000 multi-parameter analyzers were installed at the rural supply network's source inlet and outlet, watching residual chlorine plus turbidity, pH and temperature around the clock. The microelectronic chlorine electrode needs no electrolyte, measures precisely and maintains itself — cutting manual intervention when site visits were hardest.

Implementation

Analyzers were rapidly installed at inlet and outlet points of the rural network, streaming continuous chlorine and multi-parameter data through the emergency period.

Project Results

The utility gained round-the-clock visibility of chlorine levels at both ends of the network — chlorine over- and under-dosing were caught in time, disinfection stayed effective and drinking-water safety held through the emergency, with maintenance needs low enough for pandemic conditions.

Source-Water Early Warning for a Water Plant in Xi'an Aerospace City
Xi'an, Shaanxi, China · 2026
Water Treatment Plant MonitoringMunicipal & Tap Water

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.

Full-Process Monitoring Upgrade at Fuhe Reservoir Central Water Plant
Tuanfeng, Huanggang, Hubei, China · 2024
Water Treatment Plant MonitoringMunicipal & Tap Water

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.

Full-Process Water Quality Monitoring at Zhengding Surface Water Plant
Zhengding, Hebei, China · 2023
Water Treatment Plant MonitoringMunicipal & Tap Water

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.

Facing a similar monitoring challenge?

Tell us about your application — our engineers will reference this project experience and design a solution for your site.