The increasing use of light metal components in the auto motiv industrie requires constant product development in order to resist the uptrend of water and energy consumption.

 

A large amount of energy is needed for the waste water treatment while producing light metal. Appr. 4-5 litres of sewage comes out of one produced part of casting. The enormous quantities are gathered up in the engines and are beeing directed to a sewage treatment plant.

 

The use of ROTREAT membrane filtration allows a selected recovery of the mold release agent and at the same time the removal of the extraneous material.

 

The cost of energy and waste water treatment increases constantly. Measures for an effective process water recycle raise the efficiency of production and raise the economic and ecologic added value of raw material and fuel.

 

A detailed system analysis of the production process like lab and pilot tests have shown clearly that the use of membrane filtration for waste water treatment will lower the cost significantly.