Intelligent, autonomous control of iron dosing for effective phosphate removal
IRONMAN™ is an innovative technology to control the addition of iron additives to remove phosphate as part of the wastewater treatment process. It uses AI, and surrogate wastewater quality measurements to indicate phosphate levels in the influent, in order to optimise performance. This AI mimics human reasoning but reliably outperforms and saves labour in narrow tasks.
Phosphate consents at wastewater treatment works are tightening. As part of the Water Industry National Environment Programme (WINEP) there will be around 1000 new final effluent phosphorous consents coming into force before 2025.
Controlling the amount of phosphate discharged from wastewater treatment plants is essential in maintaining the ecological balance within receiving watercourses.
Currently, phosphate removal is carried out via the addition of ferric additive. This is often based on an assumed phosphate load or concentration and is often based on worst case conditions in an ‘insurance’ approach. This results in predominantly over-dosing but can also result in under-doing. Due to tightening consents, this common way of using iron additives is reaching its limit. It is also very wasteful in an age where resource and energy waste is becoming a focus and less acceptable.
IRONMAN™ provides a much smarter way of optimising current operational practice without the need for expensive investment.
IRONMAN™ is an IoT technology with embedded fuzzy-logic AI. It is modular, robust and easily deployed, with an inbuilt communications network and a web-hosted dashboard. A module monitors inlet conditions as a surrogate for phosphate load. Information is relayed to the IRONMAN™ HUB which decides dosing rates. A further module issues commands to the dosing pumps and monitors pump health.
These low-cost autonomous systems SENSE, THINK and ACT, adapting to changing circumstances. They mimic human reasoning, executing narrow tasks efficiently and reliably. This powerful technology can take away the need for expensive and error-prone human intervention and provide pronounced improvements on current processes and systems at significant cost benefit.
- Cost and ease of deployment – IRONMAN™ is much cheaper and easier to deploy than existing technologies. It is particularly applicable on smaller WwTW’s where expensive Real-Time Control systems are not viable.
- Reduce additive use – Current treatment control is often wasteful. IRONMAN™ can save around 40% of additives while maintaining permitted consent levels.
- Reduce energy use – The over-addition of chemicals is also wasteful in terms of the energy used to produce the chemicals and the overall carbon-footprint of the treatment process.
- Reduce environmental impact – Controlling the amount of phosphate discharged from wastewater treatment plants is paramount to maintain the ecological balance within receiving watercourses.
- Easy integration – The system can be easily integrated with existing standard flow and quality instruments already installed on small wastewater treatment works.
- Observability – The web-based IRONMAN™ dashboard enables observation of performance trends, faults and alarms. It is stand-alone but can be integrated with existing control room systems.
- Adaptability – Able to SENSE, THINK, ACT and ADAPT to changing circumstances. This powerful technology is able to mimic human reasoning, executing narrow tasks efficiently and reliably.
- Asset stretching – The AI based technology aligns with the current requirement for intelligent systems that best leverage existing assets.
Project Partners and funding
Northumbrian Water Ltd
For more information see our IRONMAN product page.
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