Dairy Crest bolsters SCADA system

01 November 2007

Dairy Crest has turned to an energy and process loss reduction consultant, in an effort to reduce milk wastage from its Gloucestershire site.

The dairy processor has taken receipt of a turnkey system, developed and installed by Bradshaw Consulting, that provides online product wastage information from various departments.

Bradshaw’s effluent monitoring and analysis system examines the effluent milk content to identify the milk wastage using a volume x turbidity (~ COD mg/l) calculation. This is further analysed, in terms of real time and day total data, within the site SCADA system.

The system incorporates an ultrasonic non-contact open channel flow measurement system from Micronics.

Three Micronics SLT32 meters were purchased to provide flow data, via a 4-20mA signal, to the system’s separate control system.

The meters have been installed at three known discharge points to assess effluent discharge rates assuming flume characteristics.

Site staff are now able to monitor live effluent discharge rates; initiate action, to investigate potential reductions in process milk wastage; and view the results in real time or dairy values. This is designed to allow identification and reduction of milk wastage.

Will Todd of Bradshaw managed the project and claimed it had developed an industry-leading tool for the management of process waste and effluent within the Dairy Processing industry.

He continued: “The Micronics products have performed well, service has been good and the installation has been an environmental and financial success. Improved measurement and visibility has enabled Dairy Crest to improve the plant’s performance and as a consequence less product is being wasted and therefore less effluent is being discharged.”

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