Objective
An efficient, cost-effective, environmentally friendly and sustainable microbiological process for removing mercury compounds from waste water will be demonstrated in pilot scale for the first time. On this basis, marketable plants will be developed which are capable of treating mercury containing waste water (from chlorine-alkali-electolysis processes, waste deposits, catalyst production etc.)
This will be demonstrated in a plant of pilot scale (up to 1m3) for mercury containing waste streams of the chlorine-alkali-electrolysis process of the company BSL Olefinverbund GmbH (former Buna-Werk). The demonstration plant will consist of a mobile container housing fixed bed reactors which are equipped with the necessary measurement and control devices as well as periphal instruments. The plant will be constructed and built by Preussag Wasser und Rohrtechnik GmbH and operarted together with the project partners GBF and BSL. Based on conservative calculationsfrom laboratory results it can be expected that a fixed bed reactor of 1m3 volume with growing and mercury transforming biomass will decontamine 20.000 m3 of waste water with an average concentration of 2 ppm mercury (representing a mercury concentration factor of 20.000). The plant will be operated in a joint effort between Preussag, GBF and BSL, with GBF being responsible for the analytical and microbiological monitoring of the plant under varying process conditions directly on site. To this end, a Mobile Laboratory available at the GBF will be used. To exclude the formation of mercury compounds of higher toxicity (e.g. methylmercury) ESWE (Institut für Wasserforschung und Wassertechnologie GmbH) will perform a detailed analysis of the mercury speciation process.
Topic(s)
Data not availableCall for proposal
Data not availableFunding Scheme
CSC - Cost-sharing contractsCoordinator
38124 Braunschweig
Germany