Chemical dosing system

How It Works

Chemical dosing systems deliver consistent and controlled quantities of treatment chemicals into process streams using metered pumps, monitoring and automation to achieve tailored water quality outcomes.

1-Characterise Water or Process Stream

Water quality, pH levels and contaminant load are analysed to define chemical type and dosing targets. This planning stage ensures effective treatment and stable operation.

2-Chemical Storage & Preparation

Dosing systems include safe storage for chemicals such as acids, alkalis, flocculants, coagulants and inhibitors, with secondary containment and ventilation when required.

3-Controlled Injection

Metered pumps deliver chemicals at precise rates into water, wastewater, gas or process streams based on real-time feedback from sensors. Components like peristaltic, diaphragm or piston pumps are selected per application.

4-Monitoring & Feedback Control

Inline pH, ORP, flow and turbidity sensors provide continuous feedback that adjusts dosing rates automatically through PLC or SCADA systems to maintain targeted conditions.

5-Effluent Quality Management

Accurate dosing ensures treatment objectives such as neutralisation, coagulation, corrosion control or pollutant reduction are met with minimal chemical waste and environmental impact.

Chemical dosing system

Applications

Packaged Treatment Plants main

Industrial Wastewater Neutralisation

Mining water

Sedimentation processes

Odour control

Odour Control

Refinery Sludge

Sludge Conditioning

Ph control

pH Control

Corrosion Resistant Design

Corrosion Inhibition

Water Disinfection

Water Disinfection

Gas Cleaning

Gas Conditioning

Core System Components

AquipTec configures chemical dosing systems by combining metered pumps, storage, sensing and control technologies to achieve safe and reliable chemical injection performance.

Chemical Storage & Handling

  • Bunded chemical storage tanks and secondary containment
  • Ventilation and safety access systems
  • Level sensors and alarms for spill prevention

Designed to safely store dosing chemicals, including:
Lime for pH correction and phosphorus capture
Ferric chloride and Alum/PAC as coagulants to remove turbidity and fine solids
Sodium Hydroxide (Caustic Soda) for alkalinity control and metal precipitation
Hydrogen Peroxide for oxidation and odour removal
Secure and compliant storage protects people, equipment and the environment.

Metered Pumping Modules

  • Peristaltic dosing pumps for polymer and low-flow accuracy
  • Diaphragm metering pumps for acids, alkalis and coagulants
  • Piston pumps for high-pressure industrial applications

Compatible with wide-application chemicals including:
Polymers to improve flocculation and sludge dewatering
Chlorine for disinfection, biofouling and hygiene control
Antiscalants for membrane system protection
Pump design is matched to chemical compatibility and required dosing precision.

Sensor & Feedback Control Systems

  • Inline pH, ORP and conductivity sensors
  • Flow meters and turbidity analysers
  • Integration with PLC/SCADA for automatic dosing feedback
  • Real-time measurement ensures chemical dosing accuracy and stability.

Mixing & Injection Piping

  • Static mixers
  • Injection quills and eductors
  • Corrosion-resistant piping and fittings
  • Ensures rapid chemical dispersion for effective treatment.

Control & Automation Modules

  • Programmable logic controllers (PLC)
  • HMI dashboards
  • Remote monitoring and alarm systems
  • Automation supports reliable and efficient dosing performance.

Key Benefits

Control system

Precise Chemical Control

Automated metered dosing ensures accurate delivery of treatment chemicals for consistent outcomes.

Improved Water Quality

Improved Water Quality

Targeted dosing supports pH control, coagulation and pollutant reduction to meet discharge or reuse standards.

High performance

Reduced Chemical Waste

Feedback-driven control avoids over-dosing, optimising chemical use and lowering cost.

Control system

Enhanced Process Stability

Real-time monitoring and automatic adjustment maintain stable treatment conditions.

New money

Lower Operating Costs

Efficient dosing reduces chemical consumption and minimises maintenance requirements.

Robust Low Maintenance Design

Safe & Compliant Design

Bunded storage, ventilation and safety interlocks protect personnel and site compliance.

Technology Flexibility

Flexible System Integration

Modular pumps and control systems fit a wide range of plant layouts and applications.

Modular Scalable Solutions

Scalable & Retrofit-Ready

Systems scale for differing flows and can be retrofitted to existing treatment facilities.

Why Choose AquipTec

AquipTec delivers engineered chemical dosing solutions that enhance treatment reliability and environmental compliance:

  • Technology-neutral system design based on application needs.
  • End-to-end delivery from engineering through commissioning and support.
  • Local knowledge of Australian treatment standards and regulatory compliance.
  • Solutions optimised for operational effectiveness and lifecycle value.

This solution is engineered and delivered exclusively by Aquiptec.

Frequently Asked Questions (FAQ)

What chemicals are commonly dosed?

Acids/alkalis for pH control, coagulants/flocculants for solids removal, corrosion inhibitors, disinfectants and odour control agents.

Sensors (pH, ORP, flow) feed real-time data to PLC/SCADA systems that automatically adjust pump rates.

Yes, modular designs allow easy upgrades to existing treatment plants.

Yes, with proper storage, bunding, ventilation and interlocks, systems are designed for safe operation.

Yes, ongoing maintenance and calibration services can be provided to ensure optimal performance.