Production

Cooking Process

The Cooker operates continuously.

Inside each cooker the raw material is heated using indirect steam at 150 psi. This ensures plenty of contact surfaces for the raw material for cooking. The cooker is fully computerised; each machine is on load cells with three temperature probes to record the temperature and a flow recorder to show the feed rate. The feed rate is controlled using an inverter on the feed pump together with the load cells and temperature read outs.

During the process approximately 60% of the raw material is lost through evaporation. This vapour contains the primary fumes; the vapour is treated using a Thermal Exhaust Air Purification (TEAP) system.

Thermal Exhaust Air Purification (TEAP) This system has and will continue to have dramatic implications for the operation of the site in relation to effluent treatment, and landspreading which was a major part of the originally proposed development. TEAP is one of the most universal methods of abatement capable of meeting the strictest legal requirements. The system is fully automatic and operates with the same high removal efficiency throughout its lifetime.

TEAP is in use in several European countries as an alternative to the discharging of effluent to surface waters or landspreading. The system destroys Odorous and Volatile Organic Compounds (Odours & VOCs) that are discharged in industrial process exhausts. It achieves the destruction of organics by the process of combustion. All hydrocarbons are oxidised to carbon dioxide and water vapour, due to the proper mix of temperature, residence time and turbulence within the reactor chamber. It is considered the best available technology for the purification of odorous and VOC air streams.

This technology represents a major change in the methods used at College Proteins to treat significant portions of the wastewater stream and the highly odorous process gases. The installation and commissioning of Phase II, the second unit, is expected to be completed by mid July 2002.

Condenser
The condensers will be used as back up to the proposed TEAP system and will remain to be connected to the ducting for the cooking vapours extraction. If there is a problem with the TEAP system the condenser will be started automatically.

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