Rural & Township Wastewater
Buried-Tank Effluent Monitoring at Rural Sewage Stations in Dezhou
1 / 2Project Background
Rural sewage stations around Dezhou treat village wastewater in compact buried tanks — many small, dispersed sites that together carry the compliance burden for the countryside.
Customer Challenge
Rural sewage carries high organic and suspended-solids loads that easily foul sensor probes and skew readings. With so many dispersed sites, manual cleaning is heavy and costly — yet stable online COD monitoring of each station's effluent is exactly what supervision requires.
The TENGINE Solution
The UVC integrated online COD sensor with optional wiper self-cleaning was installed at the stations' effluent points — UV measurement with no reagents, built for high-solids rural sewage.
Implementation
UVC COD sensors were deployed at the buried tanks' effluent points, with wiper self-cleaning keeping the optical window clear between service visits.
Project Results
Wiper self-cleaning cuts manual maintenance and cost, delivering stable online effluent COD monitoring across the dispersed rural stations — solid data support for rural wastewater supervision.
Related Case Studies
A mega-project of this scale places extreme demands on water quality data — accuracy and stability must hold over decades of operation. The wastewater treatment works required continuous online monitoring of oil content in water: a demanding measurement that has to run unattended in a harsh coastal desert environment, resist fouling, and integrate cleanly into plant process control.
Membrane performance calibration demands precise, time-aligned and traceable water-quality data to verify retention, anti-fouling and cleaning-recovery behavior. The pain points were acute: micro-leakage is hard to detect, and instrument drift under variable operating conditions contaminates the baseline data that the whole evaluation depends on.
Sludge concentration and blanket-level measurement were unreliable, so discharge relied on operator experience. Timing and volume were hard to control precisely — under-discharge, over-discharge and sludge loss all occurred, destabilizing effluent quality and pushing up running costs.
Facing a similar monitoring challenge?
Tell us about your application — our engineers will reference this project experience and design a solution for your site.