Water & Wastewater

Continuous monitoring and control instruments for water and process applications

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Industry Overview

Industrial wastewater contains complex pollutants from chemical, textile, food processing, pharmaceutical, and heavy industry operations. To stay compliant and reduce treatment costs, factories need accurate, real-time monitoring of key water quality parameters such as pH, ORP, COD, Turbidity, Conductivity, DO, and more.

Common Water Quality Challenges in Industrial Wastewater Plants

  • pH fluctuations affecting chemical dosing and compliance
  • Discontinuous DO monitoring leads to high aeration energy consumption.
  • ORP (Organic Reproductive Technology) has difficulty in precisely controlling the dosage of the drug.
  • Turbidity variations affecting suspended solids control
  • Manual testing leads to inconsistent results and delayed responses.Manual sampling delays and high labor cost

Online Monitoring Solution For Industrial Wastewater

How To Solve

We provide a complete online monitoring solution covering: pretreatment → process control → emission monitoring.

This includes: online pH/ORP regulation and control, online COD/TOC/ammonia nitrogen monitoring, online turbidity and suspended solids monitoring, chemical dosing and automated control, data logging, trend analysis, and remote monitoring. This solution addresses key issues faced by industrial wastewater treatment plants, such as discontinuous data, slow manual testing, high compliance pressure, and chaotic management.

  • Solution 1

    pH & ORP Online Control

    Real-time pH and ORP measurement ensures accurate neutralization and stable chemical reactions. Suitable for acid-base dosing, oxidation tanks, and neutralization basins.

  • Solution 2

    COD / TOC Continuous Monitoring

    Continuous organic load monitoring helps prevent overload shocks, reduce treatment costs, and meet discharge limits.

  • Solution 3

    Turbidity / SS Monitoring

    Turbidity and suspended solids (SS) sensors ensure sedimentation efficiency and help detect early solid carry-over issues.

Process Flow & Monitoring Points

Industrial wastewater treatment typically involves equalization, pH adjustment, coagulation, biological processing, clarification, and final discharge. Each stage requires continuous online monitoring to control dosing, stabilize process performance, and ensure regulatory compliance.

Process Step Monitoring Point Parameters Objective
Step 1:
Equalization		 Influent Equalization Tank pH,ORP,Conductivity Homogenize wastewater quality and protect downstream biological processes.
Step 2:
pH Adjustment		 Neutralization Basin pH,ORP Provide precise real-time data for automated acid/alkali dosing control.
Step 3:
Coagulation Flocculation		 Flocculation Tank Outlet Turbidity,Suspended Solids(SS) Optimize chemical usage and ensure high-efficiency solid-liquid separation.
Step 4:
Anaerobic/Anoxic Treatment		 Bio-Reactor (A-Zone) ORP,Temperature Monitor redox potential to ensure effective denitrification and phosphorus removal.
Step 5:
Aerobic Treatment (Aeration)		 Aeration Tank Dissolved Oxygen (DO),MLSS Maintain microbial health and optimize aeration energy consumption.
Step 6:
Clarification Sedimentation		 Secondary Clarifier(Upper Layer) Turbidity,SS,Sludge Interface Monitor sludge settling to prevent carry-over and ensure high-quality supernatant.
Step 7:
Final Discharge Monitoring		 Effluent Discharge Outlet pH,COD/TOC,NH3-N,Total Phosphorus 24/7 continuous monitoring to guarantee 100% compliance with discharge regulations.

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Technical Capabilities for Aquaculture

Supported pH Range 0-14
Accuracy ±0.02 pH/±1 nV ORP
Temperature Range 0-80°C
Output Options 4-20mA / RS485 Hodbus / Relay
Installation Methods Subnersible / Flow Cell / Pipeline
Turbidity Range 0-4000 NTU
Dissolved Oxygen 0-20mg/L(optical)

Measured Parameters

  • pH
  • Turbidity

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Why Choose Us for Wastewater Monitoring?

  • 10+ years industry experience
  • Anti-fouling design for sludge and high-solids environments
  • Real-time stable measurement in harsh wastewater
  • Long-term stability with minimal calibration
  • Experience across 1,000+ wastewater sites

Nec Sane Haec Sola Pernicies Orientem

  • Automated ORP Monitoring for Electroplating Effluent Treatment

    Client Background：

    An electroplating facility specialized in heavy metal surface finishing. Incomplete chemical reactions (Cyanide destruction) caused by inaccurate ORP readings and harsh process temperatures.

    Solution Applied：

    Installation of APX2-C3 Controllers supporting 2-point ORP calibration and withstanding process temperatures up to 55°C.

    Result：

    • Ensured 100% heavy metal precipitation with precise redox potential tracking.
    • IP66 rated enclosure protected electronics from corrosive chemical vapors in the plant.
    • Calibration logs (last 100 entries) streamlined predictive maintenance for ORP electrodes.

  • Automated ORP Monitoring for Electroplating Effluent Treatment

    Client Background：

    An electroplating facility specialized in heavy metal surface finishing. Incomplete chemical reactions (Cyanide destruction) caused by inaccurate ORP readings and harsh process temperatures.

    Solution Applied：

    Installation of APX2-C3 Controllers supporting 2-point ORP calibration and withstanding process temperatures up to 55°C.

    Result：

    • Ensured 100% heavy metal precipitation with precise redox potential tracking.
    • IP66 rated enclosure protected electronics from corrosive chemical vapors in the plant.
    • Calibration logs (last 100 entries) streamlined predictive maintenance for ORP electrodes.

  • Automated ORP Monitoring for Electroplating Effluent Treatment

    Client Background：

    An electroplating facility specialized in heavy metal surface finishing. Incomplete chemical reactions (Cyanide destruction) caused by inaccurate ORP readings and harsh process temperatures.

    Solution Applied：

    Installation of APX2-C3 Controllers supporting 2-point ORP calibration and withstanding process temperatures up to 55°C.

    Result：

    • Ensured 100% heavy metal precipitation with precise redox potential tracking.
    • IP66 rated enclosure protected electronics from corrosive chemical vapors in the plant.
    • Calibration logs (last 100 entries) streamlined predictive maintenance for ORP electrodes.

  • Automated ORP Monitoring for Electroplating Effluent Treatment

    Client Background：

    An electroplating facility specialized in heavy metal surface finishing. Incomplete chemical reactions (Cyanide destruction) caused by inaccurate ORP readings and harsh process temperatures.

    Solution Applied：

    Installation of APX2-C3 Controllers supporting 2-point ORP calibration and withstanding process temperatures up to 55°C.

    Result：

    • Ensured 100% heavy metal precipitation with precise redox potential tracking.
    • IP66 rated enclosure protected electronics from corrosive chemical vapors in the plant.
    • Calibration logs (last 100 entries) streamlined predictive maintenance for ORP electrodes.

Frequently Asked Questions

Expert answers on water quality monitoring, sensor maintenance, and optimizing aeration efficiency for industrial and municipal wastewater treatment compliance.

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How to calibrate a pH sensor for industrial wastewater?
Quare talis improborum consensio non modo excusatione amicitiae tegenda non est sed potius supplicio omni vindicanda est, ut ne quis concessum putet amicum vel bellum patriae inferentem sequi; quod quidem, ut res ire coepit.
What is the difference between membrane and optical DO sensors?
Quare talis improborum consensio non modo excusatione amicitiae tegenda non est sed potius supplicio omni vindicanda est, ut ne quis concessum putet amicum vel bellum patriae inferentem sequi; quod quidem, ut res ire coepit.
Why is MLSS monitoring critical in activated sludge processes?
Quare talis improborum consensio non modo excusatione amicitiae tegenda non est sed potius supplicio omni vindicanda est, ut ne quis concessum putet amicum vel bellum patriae inferentem sequi; quod quidem, ut res ire coepit.
Can ORP be used to monitor disinfection in wastewater treatment?
Quare talis improborum consensio non modo excusatione amicitiae tegenda non est sed potius supplicio omni vindicanda est, ut ne quis concessum putet amicum vel bellum patriae inferentem sequi; quod quidem, ut res ire coepit.
How to integrate water quality sensors with PLC via Modbus RS485?
Quare talis improborum consensio non modo excusatione amicitiae tegenda non est sed potius supplicio omni vindicanda est, ut ne quis concessum putet amicum vel bellum patriae inferentem sequi; quod quidem, ut res ire coepit.
What causes pH sensor drift in industrial effluent?
Quare talis improborum consensio non modo excusatione amicitiae tegenda non est sed potius supplicio omni vindicanda est, ut ne quis concessum putet amicum vel bellum patriae inferentem sequi; quod quidem, ut res ire coepit.
Does temperature affect conductivity measurements in water analysis?
Quare talis improborum consensio non modo excusatione amicitiae tegenda non est sed potius supplicio omni vindicanda est, ut ne quis concessum putet amicum vel bellum patriae inferentem sequi; quod quidem, ut res ire coepit.
How to select the right mounting for water quality controllers?
Quare talis improborum consensio non modo excusatione amicitiae tegenda non est sed potius supplicio omni vindicanda est, ut ne quis concessum putet amicum vel bellum patriae inferentem sequi; quod quidem, ut res ire coepit.