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Intelligent Online Monitoring Solution Helps Wastewater Treatment Plants Achieve Stable Discharge Compliance

As global environmental regulations continue to tighten, more wastewater treatment plants are focusing on real-time online monitoring of discharge flow, water level, and water quality parameters. Traditional manual inspection methods can no longer meet the requirements for continuous monitoring, remote management, and environmental data recording.

To address the complex application environments of wastewater treatment plants, industrial wastewater stations, and municipal discharge outlets, Honde Technology Co., Ltd. provides a complete wastewater treatment and discharge outlet flow monitoring solution, helping customers achieve intelligent and digital environmental management.

Hydrological monitoring system

Project Background

A wastewater treatment plant in an industrial park planned to upgrade its environmental online monitoring system and faced the following challenges:

  • Humid and highly corrosive discharge outlet environments
  • Large amounts of floating solids in wastewater, causing frequent maintenance of traditional contact sensors
  • Requirement for simultaneous monitoring of flow, level, and multiple water quality parameters
  • 24-hour continuous data uploading required by environmental authorities
  • High labor costs and unstable data from manual inspections

To achieve stable discharge compliance and remote digital management, the customer decided to adopt a combined solution of non-contact radar flow monitoring and online water quality monitoring.

Solution Overview

This project adopted an integrated solution combining radar flow monitoring and online water quality monitoring.

1. Online Flow Monitoring at Discharge Outlet

The site installed:

Radar 3-in-1 Flow Meter RD-600S-02

This device simultaneously measures:

  • Water level
  • Flow velocity
  • Real-time flow rate

Using non-contact radar measurement technology, the system operates stably even in wastewater environments with heavy foam, suspended solids, and corrosive gases.

Solution Advantages

  • Non-contact measurement without direct contact with wastewater
  • Unaffected by sediment, floating debris, or foam
  • IP68 waterproof protection
  • Supports RS485 / 4-20mA output
  • Supports remote data transmission
  • Suitable for wastewater treatment plant outlets, open channels, and industrial discharge outlets

Compared with traditional ultrasonic solutions, radar monitoring provides significantly higher stability in complex wastewater environments.

2. Real-Time Water Level Monitoring

The project also deployed:

80GHz Radar Level Meter

This device is mainly used for:

  • Equalization tank level monitoring
  • Wastewater tank level alarm
  • Pump station level control

Its 80GHz high-frequency radar technology effectively penetrates:

  • Water vapor
  • Foam
  • Volatile gases

Even under harsh operating conditions, it maintains millimeter-level measurement accuracy.

3. Online Water Quality Monitoring System

To meet environmental discharge monitoring requirements, the site also installed a multi-parameter online water quality monitoring system.

Online Monitoring Parameters Include:

  • PH
  • EC
  • TDS
  • Salinity
  • Turbidity
  • MLSS (Mixed Liquor Suspended Solids)
  • COD
  • BOD
  • TOC
  • ORP

Among them:

COD/BOD/TOC 5-in-1 Sensor

Using UV254 ultraviolet absorption technology, the sensor offers:

  • Reagent-free measurement
  • No secondary pollution
  • Fast response time
  • Continuous online over-limit warning

It is especially suitable for real-time monitoring of wastewater discharge outlets.

Project Results

After the system was put into operation, the customer achieved significant improvements.

1. Improved Environmental Data Stability

The non-contact radar monitoring effectively avoided:

  • Sensor blockage
  • Sludge adhesion
  • Frequent manual cleaning

As a result, the monitoring data became more stable and reliable.

2. Reduced Maintenance Costs

Traditional contact-type equipment requires frequent maintenance, while this project adopted:

  • Radar measurement technology
  • Self-cleaning brush water quality sensors

This greatly reduced onsite maintenance workload.

3. Achieved 24/7 Online Supervision

All data can be uploaded in real time to:

  • PLC systems
  • SCADA platforms
  • Environmental supervision platforms

This allows customers to perform remote management and historical data analysis.

4. Improved Digital Management of Wastewater Treatment

Through multi-parameter online monitoring, customers can monitor in real time:

  • Discharge flow variations
  • Water quality trends
  • Sludge concentration status
  • Biological treatment process performance

This helps optimize wastewater treatment processes and improve discharge compliance stability.

Why Are More Wastewater Treatment Plants Choosing Radar Online Monitoring?

Compared with traditional monitoring solutions, radar online monitoring provides significant advantages:

Comparison Item Traditional Contact Solution Radar Online Monitoring Solution
Contact with Wastewater Yes No
Anti-Pollution Capability Moderate Excellent
Maintenance Frequency High Low
Adaptability to Harsh Conditions Moderate Excellent
Service Life Shorter Longer
Data Stability Easily Affected More Stable

Especially in:

  • Industrial wastewater
  • Municipal sewage
  • Highly corrosive environments
  • High-foam conditions

Radar monitoring solutions demonstrate even greater advantages.

Application Scenarios

This solution is widely used in:

  • Wastewater treatment plants
  • Industrial wastewater treatment stations
  • Chemical industrial park discharge outlets
  • Municipal drainage systems
  • Environmental online monitoring projects
  • Open channel flow monitoring
  • Pump station level monitoring

About Honde Technology

Honde Technology Co., Ltd. specializes in environmental monitoring, meteorological monitoring, hydrological and water quality monitoring, and industrial IoT sensor solutions.

The company provides:

  • Radar flow meters
  • Radar level meters
  • Online water quality sensors
  • Multi-parameter water quality monitoring systems
  • Environmental monitoring equipment
  • IoT remote monitoring solutions

Its products are widely used in:

  • Environmental protection industry
  • Water treatment industry
  • Smart cities
  • Industrial automation
  • Agriculture and water conservancy monitoring

Contact Us

If you are looking for:

  • Wastewater online monitoring solutions
  • Discharge outlet flow monitoring systems
  • Radar flow meters
  • Online water quality monitoring equipment

Please contact:

Email: info@hondetech.com


Post time: May-15-2026