APPLIANCE

•   Discharged air
•   Sterilisation
•   Wastewater

foodstuff production industry

Even during the industrial elaboration of products such as e.g. potato chips, spring rolls or fish and meat dishes heavily fat-charged exhaust vapours are emanated. Due grease accumulation in air ventilation systems unpleasant odours may appear and fire danger increases.
oxytec 's UV-C-/Ozone air purification systems offer an economic and enviroment-friendly alternative to chemical cleaning agents, biofilters und thermal treatment.

Fields of appliance:
Industrial frying and roasting trays
Furnaces
Fat smelters

Industrial frying and roasting trays

The use of conventional methods such as biofilters and/or upstream scrubbers and thermal treatement respectively to eliminate hot greasy exhaust vapours involve various disadvantages:

• Biofilters show a critical behaviour when there is no continuous organical air stream induced, e.g. during breakdowns. Seasonal fluctuations concerning high/low temperatures, dry/wet conditions also lead to significantly increased maintenance requirements. In addition, biofilters act as a perfect feeding ground for unhealthy bacteria.
• Thermal treatement manages to eliminate the greasy exhaust vapours, but remain very cost-intensive and complex in terms of sustentation and maintenance. To at least make use of a fraction of the energy generated while performing the thermal treatement usually the thermal oil of the fryier is heated this way. However, calculations reveal that heating the thermal oil by using alternative techniques, such as a separate gas burner or steam, results substantially more economical.

Contrary to the previously mentioned methods oxytec's FLO-P plants show numerous advantages:

• no use of chemical based scrubbers
• 100 % effectiveness, independent of the degree of humidity of the exhaust vapours
• the air exhaust system remains free of grease, reducing the risk of fire
• individually adaptable steam cushion in fryers
• low energy costs: the average current consumption of e.g. an industrial deep fryer with 3000 m³/h primary air (exhaust vapours) and 6.000 m³/h secondary air (compartment air) does not exceed 8,6 kWh (without ventilation fan)

Aliment curing furnaces

Purification of exhaust air emanated from furnaces dedicated to curation by smoking pose a great challenge to the foodstuff production industry, mainly due the fact that the tar residues found in the exhaust air streams permanently destroy both biofilters and thermal combustion plants.

Using oxytec's FLO-K plants an efficient reduction of the exhaust air's odour emission can be achieved without tar residues harming the system. Organical compounds found in the exhaust air stream are oxided, contained tar residues are deposed in the plant and onto the lamps, being removed due a regularly and automatically performed CIP-washing routine.

Certified quality assurance agencies (e.g. the german Technical Inspection Authority TÜV) attest a confirmed odour reduction of 80 up to 90 %, matching imposed legal restraints.

Fat smelters

Unpleasant odour also represent a serious problem near fat smelters. Due the huge volumen of discharged air biofilters are often applied to eliminate unpleasant smells. The brilliant results obtained by the appliance of UV-C-/ozone plants when dealing with greasy exhaust air steams make the FLO-K plant more and more popular in this sector.

Particularly the On/Off function of the device, the TÜV-proved efficiency in terms of odour reduction and low required space makes it to an outstanding technology.