Latest News - Lahn Dill Kreis Project

In the Spring of 2009 Wehrle won a public tender at Lahn Dill Kreis in Germany, and received an order for the construction and operation of a leachate treatment plant for indirect discharge.

An innovative plant design has been installed by Wehrle in a building housing multiple proven BIOMEMBRAT ® Membrane Bioreactor (MBR) systems to treat the main flow as well as an activated carbon adsorption system as secondary treatment for the elimination of nitrogen and organic compounds. In high leachate flow conditions the activated carbon adsorption secondary treatment system is placed online to support the MBR plant.

This concept, fulfilling the requirements of local authorities, has already proven to be very robust in operation and economics in Southern Germany, in a location with permanent available treatment capacity in excess of 100%. With the flexibility of the concept, leachate treatment can be recognised as economic in variable conditions or in the case of new more stringent governmental requirements (e.g. the secure elimination of perfluorinated tenside compounds by changing interconnections to the activated carbon adsorption system).

With this project, Wehrle again demonstrates its strong position in the wastewater treatment market, using MBR systems for leachate treatment. In this case, low energy filtration coupled with process stability and efficient operation management, results in total costs of less than 15 €/m3 treated wastewater (operating costs incl. financing).

Authors: C. Timm/F. Natau

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