Real UV254 COD and organic-load monitoring projects

These project records show how UV254 organic-load measurement was integrated with broader water-quality systems. The English case copy is searchable webpage text; public visuals contain no Chinese information boards or third-party branding.

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01Municipal wastewater plant multi-parameter monitoring upgrade↘02Urban river ecological-restoration monitoring network↘03Unmanned surface-water monitoring boat project↘04Recirculating musical-fountain water-quality monitoring↘

01 · 2020 · Zhao’an, Zhangzhou, Fujian, China

Municipal wastewater plant multi-parameter monitoring upgrade

Project background: The Chengxi wastewater-treatment project was documented with a total investment of CNY 200 million, a treatment scale of 125,000 tonnes per day and a Class 1A discharge objective. The monitoring system formed part of the regional wastewater-management program.
Implementation: In December 2020, multiple online analyzers were installed to provide continuous organic-load, nutrient, solids and process measurements for plant operation.
Monitored parameters: UV254 / COD correlationAmmonia nitrogenTotal phosphorusTotal nitrogenSuspended solidsDissolved oxygenLiquid level
UV254 configuration: PUVCOD-900 supplied direct-immersion UV254 organic-load measurement within the multi-parameter analyzer system.
Project role: The integrated station provided continuous process visibility for routine operation and environmental management.

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02 · 2023 · Jingmen, Hubei, China

Urban river ecological-restoration monitoring network

Project background: A citywide water-ecology program combined upstream pollution control, ecological water replenishment, river restoration and a digital supervision platform.
Implementation: In July 2023, water-quality stations and pollution-source monitoring points were installed to observe river conditions continuously and support restoration work.
Monitored parameters: UV254 / COD correlationPermanganate indexAmmonia nitrogenTurbidityMultiparameter station
UV254 configuration: PUVCOD-600 provided compact UV254 organic-load measurement alongside nutrient and turbidity analyzers in the river-monitoring station.
Project role: Continuous data supported pollution-source review, ecological restoration and the city’s water-quality supervision platform.

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Engineers commissioning a yellow unmanned water-monitoring boat and the boat operating on a lake

03 · 2022 · Yangjiang, Guangdong, China

Unmanned surface-water monitoring boat project

Project background: The local environmental authority required mobile, cross-section water-quality observations to support surface-water pollution prevention and source investigation.
Implementation: In August 2022, an unmanned monitoring boat was commissioned for all-weather, automated multi-parameter surveys across the river and lake area.
Monitored parameters: UV254 / organic loadTurbiditypHAmmonia nitrogenDissolved oxygenConductivity
UV254 configuration: UV254 organic-load measurement was integrated with the boat’s multiparameter sensing package and survey workflow.
Project role: The mobile platform expanded spatial coverage and supplied field data for water-body assessment and pollution investigation.

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04 · 2020 · Tangshan, Hebei, China

Recirculating musical-fountain water-quality monitoring

Project background: A closed-loop musical fountain was vulnerable to turbidity, algal growth and organic contamination because the water recirculated and received airborne and visitor-related inputs.
Implementation: In 2020, immersion sensors were installed to observe organic-load and supporting water-quality indicators continuously within the fountain basin.
Monitored parameters: UV254 / COD correlationChlorophyllTransparencyDissolved oxygen
UV254 configuration: PUVCOD-900 UV254 probes were installed with supporting optical sensors at multiple fountain-water monitoring points.
Project role: The system helped the operator observe changing water conditions and schedule treatment before visible deterioration affected the fountain display.

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