Rotie-Simadan Plasma Technique, Netherlands

Rotie, one of the subsidiaries of Simadan BV, collects and recycles organic waste into energy. It is building a new factory in Amsterdam for the processing of fat and oils and of various organic waste products into swill and for the transformation of these waste products into second-generation biofuels. Colt designed an ingenious and innovative solution to combat odour.

Ingenious and innovative solution to combat odour Air curtains with 90% efficiency

Containers filled with fats and oils are placed into two closable bunkers. The hoods are closed to reduce heat loss and prevent odour emissions, and the containers are lowered into the liquid fat, until it melts. The bunkers’ hoods are then opened and the containers are emptied. The empty containers are taken to a heat tunnel where the remaining fat is removed with hot air. Finally the containers are washed, stored and eventually loaded into trucks and the process begins again.

Every time the bunkers are opened, bad odour tends to escape. To prevent this, Colt’s solution uses air curtains with 90% efficiency so that less air extraction is needed. Odours are prevented from escaping into the building by under-pressure, using air that is subsequently passed through electrostatic filters.

The smell of fruit, vegetable and other organic material waste (this is the typical smell everyone knows from your bin on a warm summer’s day) is neutralized by using an air handling system with cold plasma. This is a new and innovative technique which is very energy efficient and user friendly. We tested our plasma solution and have been able to achieve a 95% reduction in volatile organic compounds (VOCs), ammonia (NH3) and hydrogen sulphide (H2S) which is commonly associated with the smell of rotten eggs.

Using this unique system Rotie is certain that it fully complies with all applicable environmental requirements. It also provides them with many user benefits including extremely low energy costs.

View a video with the Rotie plant manager on the UK blog.