Industrial Wastewater Applications: Chemical Industry

In the chemical industry various process technologies are required to treat wastewater with high COD, suspended solids and organic loadings. Depending on the specific site conditions and the treated effluent requirements, unit process technologies typically selected by Wehrle on a wastewater project would include Equalisation, pH Control, Dissolved Air Flotation and MBR technology, the Wehrle MBR-HS process specifically.

The Wehrle MBR process can also be used for the treatment of wastewater from road tanker washing, as outlined in the following case study:

Road Tanker Washwater Treatment Case Study: Bertschi, Switzerland
In this case study we describe the improvements made to the existing wastewater treatment plant at Bertschi’s road tanker washing facility at Birrfelden, Switzerland.  Wastewater from the tanker-rinse is variable in both quantity and water quality. Existing treatment technology at Birrfelden had proved unsatisfactory as biomass was periodically carried through the treatment process into the final effluent. This prevented release of the effluent to sewer at these times due to breach of consent limits...

For further information on Wehrle MBR technology visit our Technology pages and our Resource Centre.