Key points
The challenge
A UK company in the chemical industry utilises Endress+Hauser equipment to ensure its treated wastewater can be discharged to a local river without any significant environmental impact. Monitoring and reporting the total organic carbon (TOC) levels of the wastewater is essential both to comply with Environment Agency regulations and as an indicator of plant health.
A spokesperson said, “If the TOC levels are elevated at the final outflow, you know the plant’s not doing its job by getting rid of it during the process.”
The solution
The treated water is mixed with site cooling water (and surface water if raining) before passing along an open drainage channel and entering the river. All throughout the treatment process the water is sampled and tested using TOC analysers to ensure the water quality meets the requirements of the operating permit.
The company’s old analysers from a third-party supplier had become unreliable, so the project to deliver new instruments was put out to tender. Endress+Hauser’s CA72TOC analysers came out on top in terms of both reliability and price, and three analysers were installed at the inlet, outlet and discharge point.
The analysers measure reliably and accurately even in complex applications. Designed for long-term stability and highest availability, they offer maximum operational safety, and clear diagnostic messages actively support predictive maintenance strategies.
Ease of use was an important consideration. “The analysers are there to stop the outflow, so they need to be reliable and maintained regularly,” the spokesperson said. “Endress+Hauser have done a lot of training with us, so in between service visits we can look after them ourselves.” An automated system has been put in place so that if high levels of TOC are identified, the outflow pumps are stopped from running and the wastewater is diverted away from the river.
The benefits
Compliance with regulatory requirements and the ability to automatically adjust operations based on the results obtained are important benefits. And being able to access the results remotely and in real time is key.
Accurate and reliable monitoring of what is discharged from the plant not only helps to optimise processes and comply with strict environmental regulations but also gives peace of mind that the river and the wildlife that depend on it are protected from pollutants.
Benefits of the CA72TOC analyser
- Process optimisation: Constant safeguard against product losses.
- Cost savings: 2-channel version offers an excellent price-performance ratio.
- Reliable discharge monitoring: Configuration for fat and grease, low pH values and organic acids.
- Improved process stability and safety: Immediate readjustment of the process based on online information.
- Robust design: Self-cleaning slit filter and automatic backflush function support long maintenance intervals.
- Safe and convenient operation: Remote access and diagnostics via serial interface.[Info box ]
For more information about Endress+Hauser’s high precision sum parameter analysis in municipal and industrial wastewater treatment, visit TOC, COD & SAC analyzers | Endress+Hauser
Endress+Hauser is committed to helping its customers achieve real-time accurate measurements and take control of their processes. Find out how you can begin to unlock the potential of your assets here: www.smarter-decisions.co.uk
Endress+Hauser UK
- +44 161 286 5000
- info@uk.endress.com
- https://www.uk.endress.com
- Floats Road Manchester M23 9NF GB
About us
A strong partner worldwide
Endress+Hauser is a global leader in measurement instrumentation, services and solutions for industrial process engineering. We provide process solutions for flow, level, pressure, analytics, temperature, recording and digital communications, optimising processes in terms of economic efficiency, safety and environmental impact. Our customers come from various industries, including chemical, food & beverage, life sciences, power & energy, primaries & metal, oil & gas and water & wastewater.
Benefits
- Net sales of 2.4 billion euros – a strong partner
- More than 13,900 employees worldwide – a reliable employer
- Equity ratio of 71% – solidly financed
- Continuous annual investments of approximately 160 million euros – future-oriented
- Nearly 7,800 patents and patent applications – innovative and creative
Where we supply to
UK Ireland, Europe, Africa, Asia, Australia, South America, North America
Industries we supply to
Automation, Chemicals, Consultants, Components Electronics, Energy and Power, Food and Beverage, Glass Ceramics Cement, Metals and Minerals, OEM, Paper and Pulp, Pharmaceutical Cosmetics Toiletries, Plastics and Rubber, Recycling, Textiles, Tobacco, Water and Wastewater
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