Automation saves time in wastewater analysis
Kerry DCF improves speed and reliability of COD measurement
Food manufacturer Kerry DCF requires an accurate reading of the chemical oxygen demand of its treated effluent before it is discharged to the sewer. The company was able to replace a time-consuming manual process with a Memosens Wave CAS80E spectrophotometer, which offers reliable real-time measurement of up to five analytical parameters. Its use ensures better control of the effluent, preventing consent breaches and optimising the wastewater treatment process.
Memosens CAS80E in treated effluent tank
Liquiline transmitter
The benefits
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Faster and more reliable – removes the possibility of human error.
Staff are freed up for other tasks.
Virtually maintenance-free.
No routine chemical reagents required
“It’s helped to improve the overall performance of the water treatment plant and if other sites asked I would recommend it.”
Kerry Dairy Consumer Foods
The challenge
Kerry DCF’s site in Ossett, West Yorkshire primarily manufactures spreads from margarine and butter products. The treated effluent from the cleaning process has to be checked to ensure that the chemical oxygen demand (COD) – the amount of oxygen required to break down organic material such as fats via oxidation – is below a set limit before being discharged to the sewer. The water company responsible for the site’s sewerage performs frequent spot checks to ensure the limits aren’t breached.
The solution
The CAS80E sensor uses an optical method to scan the sample across a wide spectrum from ultraviolet to the near-infrared. Installed directly in the treated effluent tank, it provides COD and TSS (total suspended solids) readings approximately every 30 seconds. When the CAS80E measures COD above the consent limit, the wastewater treatment plant automatically goes into recirculation, meaning no water is discharged to the sewer until the effluent has been manually checked and the outfall reset.
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| FLEX selections | Technical excellence | Simplicity |
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Fundamental selection Meet your basic measurement needs |
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Lean selection Handle your core processes easily |
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Extended selection Optimize your processes with innovative technologies |
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