Real online dissolved-oxygen monitoring projects

These records are structured from supplied real project material. The English site uses English case copy, while the public images retain the field installations and remove the original Chinese information panels, third-party company names, equipment brands and nameplates.

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01Municipal wastewater plant multiparameter monitoring↘02Smart monitoring for an urban drainage network↘03Wastewater plant expansion and upgrade monitoring↘04Dissolved-oxygen monitoring for a treatment-capacity upgrade↘05Industrial wastewater plant multiparameter monitoring↘06Online monitoring for a wastewater-plant modernization↘

Neutralized municipal wastewater online monitoring equipment

01 · 2020 · Fujian, China · Municipal wastewater plant

Municipal wastewater plant multiparameter monitoring

Project background: This municipal wastewater plant was documented with a design capacity of approximately 12,000 tonnes per day and Class 1A discharge requirements. The project needed stronger continuous process and outlet monitoring.
Implementation: In December 2020, the project deployed online COD, ammonia nitrogen, total phosphorus, total nitrogen, suspended-solids/sludge concentration, dissolved oxygen and level measurements.
Monitored parameters: DOCODAmmonia nitrogenTotal phosphorusTotal nitrogenSuspended solids
DO configuration: Documented dissolved-oxygen model: PFDO-700.
Project role: The combined parameters created a continuous record of treatment conditions and outlet performance for routine operation and discharge management.

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Neutralized urban drainage-network monitoring cabinets

02 · 2020 · Guangdong, China · Zhaoqing drainage network

Smart monitoring for an urban drainage network

Project background: The project addressed a complex urban drainage network with waterlogging risk. Dynamic sensing was required to track stormwater and wastewater changes and support warning and management.
Implementation: In July 2020, online instruments were installed at key drainage-pipe locations to collect total nitrogen, total phosphorus, dissolved oxygen and ammonia-nitrogen data.
Monitored parameters: DOTotal nitrogenTotal phosphorusAmmonia nitrogen
DO configuration: Documented dissolved-oxygen equipment: PFDO-800 sensor.
Project role: The continuous water-quality record supported visualization and smarter management of the urban drainage system.

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Wastewater plant and neutralized online monitoring cabinets

03 · 2019 · Hebei, China · Baoding wastewater plant

Wastewater plant expansion and upgrade monitoring

Project background: The installation formed part of a municipal wastewater expansion and treatment-standard upgrade. Key process measurements were required to support operation and outlet control.
Implementation: In May 2019, online dissolved oxygen, ORP and suspended-solids/sludge concentration analyzers were deployed at key wastewater-treatment stages.
Monitored parameters: DOORPSuspended solids / sludge concentration
DO configuration: Documented dissolved-oxygen model: PFDO-700.
Project role: The project provided continuous process data for operating management and treatment optimization.

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Neutralized dissolved-oxygen monitoring enclosure beside a treatment basin

04 · 2017 · Sichuan, China · Meishan municipal wastewater plant

Dissolved-oxygen monitoring for a treatment-capacity upgrade

Project background: The project formed part of a municipal wastewater capacity and existing-facility upgrade, with a focus on stronger continuous process measurement.
Implementation: In October 2017, online dissolved-oxygen and suspended-solids/sludge analyzers were installed to record oxygen and solids changes through the treatment process.
Monitored parameters: DOSuspended solids / sludge concentration
DO configuration: Documented dissolved-oxygen model: PFDO-800.
Project role: Continuous readings supported treatment-process assessment and operating adjustment.

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Neutralized industrial wastewater analyzers and field cabinet

05 · 2019 · Sichuan, China · Guang'an industrial wastewater plant

Industrial wastewater plant multiparameter monitoring

Project background: This industrial wastewater plant served an economic and technology development zone. Multiparameter online monitoring was required to support treatment efficiency and discharge management.
Implementation: In December 2019, dissolved oxygen, CODcr, pressure and flow instruments were configured for continuous collection of key treatment-water parameters.
Monitored parameters: DOCODcrPressureFlow
DO configuration: Documented dissolved-oxygen model: PFDO-700.
Project role: The multiparameter record supported treatment-efficiency assessment and discharge-water management.

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Neutralized online analyzer cabinets in a wastewater modernization project

06 · 2022 · Hubei, China · Three Gorges area wastewater plant

Online monitoring for a wastewater-plant modernization

Project background: This wastewater plant is located in the Three Gorges area. Its modernization included new online instruments for continuous verification of treatment conditions.
Implementation: In May 2022, automatic sampling, CODcr, dissolved oxygen and suspended-solids/sludge instruments were installed, with key measurements transmitted to the monitoring platform.
Monitored parameters: DOCODcrSuspended solids / sludge concentrationAutomatic sampling
DO configuration: Documented dissolved-oxygen model: PFDO-700.
Project role: The system provided continuous tracking of treatment conditions and outlet-water status.

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