Wastewater Process Solutions
Accurate measurement, monitoring and control solutions for efficient, compliant and reliable wastewater treatment operations
Over 45 Years in Operation
1000's of UK Installations
Supporting 100's of UK Sites
Reliable measurement and control are fundamental to efficient, compliant and cost-effective wastewater treatment operations.
Wastewater treatment processes rely heavily on accurate measurement and control to maintain efficiency, meet regulatory requirements and manage operational costs.
From aeration systems and sludge treatment through to biogas production and energy recovery, operators require reliable instrumentation that performs consistently in wet, corrosive and demanding environments.
Allison Engineering provides process control solutions across wastewater and water treatment facilities, supporting operators with proven technologies designed for air, gas and liquid monitoring in real-world conditions.
Our approach focuses on understanding each stage of the treatment process, ensuring solutions are correctly specified for long-term performance, efficiency and reliability.
Wastewater Applications
We support a wide range of applications across wastewater treatment plants, combining proven technologies with practical, application-led expertise.
Biological Desulphurisation for AD Plants
Gas-to-Grid Biomethane Upgrading using Oxygen Injection & Control
Biogas Analysis for AD Plants
Wastewater Aeration Air Flow Monitoring
Biogas Flow Measurement for AD Plants
Biogas Flare Gas Monitoring for AD Plants
Fugitive Emissions Monitoring & Methane Leak Detection
Pump Protection Using Flow Monitoring and Flow Switches
VOC Monitoring for Biogas and Landfill Gas Applications
SIL Rated Oxygen Analysis for Biogas Upgrading
Understanding Reynolds Number in Flow Measurement
Why Choose Wastewater Process Control Solutions
Designed for Wet & Corrosive
Wastewater processes involve moisture, contaminants and aggressive conditions. Our solutions are selected to perform reliably in these environments over the long term.
Optimised for Air & Gas Applications
From aeration air to biogas monitoring, our wastewater products and technologies are specifically suited to low pressure, variable and contaminated gas streams.
Proven Across Treatment Plants
Our solutions are widely used across wastewater and water treatment facilities, supporting aeration systems, digestion processes and energy recovery applications.
Application-Led Engineering Approach
We focus on understanding the treatment process, ensuring the correct instrumentation is selected for each application rather than applying a generic solution.
Energy Efficiency & Cost Reduction
Accurate monitoring of air and gas flows helps reduce energy consumption, particularly in aeration systems which are often the largest energy users on site.
Supports Environmental Compliance
Reliable measurement supports reporting requirements, process control and environmental compliance across wastewater operations.
Need information or advice?
Speak with our friendly, expert team to discuss your requirements and find out how we can help you.
Full Service UK Solutions
Allison Engineering supports wastewater projects from initial specification through to long-term operation, delivering complete solutions backed by technical expertise and ongoing support.
Specifications & Planning
Application review, technical consultation and system design based on treatment processes, site conditions and operational requirements.
Supply & Commissioning
Supply of proven products and technologies with full support for installation, commissioning and complete system integration.
Support & Optimisation
Ongoing servicing, calibration, maintenance and technical support to ensure systems continue to perform reliably over time.
Wastewater Process Control FAQs
Common questions about measurement, monitoring and control in wastewater treatment applications, including aeration, biogas and process optimisation.
Why is aeration air flow measurement important in wastewater treatment?
Aeration is typically the largest energy consumer in a wastewater treatment plant, and accurate airflow measurement is essential for optimising oxygen transfer efficiency. Without proper measurement, systems often over-aerate, wasting energy, or under-aerate, reducing treatment performance.
In practice, monitoring aeration air allows operators to balance energy use with process efficiency, ensuring optimal biological activity while minimising operational costs.
How can wastewater plants reduce energy consumption?
One of the most effective ways to reduce energy consumption is through improved monitoring and control of aeration systems. By measuring airflow accurately and adjusting blower output accordingly, plants can significantly reduce unnecessary energy usage.
Additional savings can be achieved by monitoring compressed air systems, pump performance and biogas utilisation, all of which contribute to overall plant efficiency.
Why is biogas measurement important in wastewater treatment?
Biogas is produced during anaerobic digestion of sludge and represents a valuable energy source. Measuring biogas flow allows operators to monitor production rates, optimise CHP performance and track energy recovery.
Accurate measurement also supports reporting and helps identify process issues such as reduced gas production or system inefficiencies.
What challenges are common in wastewater measurement applications?
Wastewater environments are typically wet, corrosive and contain contaminants that can affect instrumentation. Air and gas flows are often low pressure and variable, making accurate measurement more difficult.
Selecting technologies designed specifically for these conditions is essential to ensure long-term reliability and minimise maintenance requirements.
How are biogas and aeration systems connected in wastewater plants?
Both systems are part of the overall treatment and energy cycle. Aeration supports biological treatment, while anaerobic digestion produces biogas for energy recovery.
Monitoring both systems together provides a more complete understanding of plant performance and allows operators to optimise energy usage and process efficiency.
How do I choose the right instrumentation for wastewater applications?
The right solution depends on the specific process, whether measuring air, gas or liquid flow, and the environmental conditions on site. Factors such as moisture, contamination, flow range and installation requirements must all be considered.
An application-led approach ensures that the selected instrumentation performs reliably and delivers long-term value.
Why Trust Allison Engineering
We are committed to delivering the highest standards across the specialist areas we support, combining proven products with practical engineering knowledge and dependable service.
Need Help Optimising Your Wastewater Treatment Process?
Speak to our team to identify the right measurement and control solutions for your application, from aeration optimisation to biogas recovery and process monitoring.