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1997
Journal Article
Titel
Verwertung von Pökellake aus fleischverarbeitenden Betrieben. Derzeitige Praxis und Entsorgungskosten, zukünftige Behandlungswege
Alternative
Utilisation of Brine from Meat Processing Industries. Current Practices and Disposal Costs, Future Treatment Methods
Abstract
The German meat industry produces 140,000 tonnes of raw salted products annually from 120 companies. This production yields 14,000 m3 of highly laden organic and anorganic brine solutions which, by and large, is disposed of down the sewerage system. Municipalities levy surcharges for highly polluted waste streams and the introduction of brine into the sewerage system incurs effluent charges of 180 DM/m3 on average. In the medium term, charges of 300 to 900 DM/m3 can be predicted. The reason for these costs are the two variants for the utilisation of brine solutions which are being proposed and discussed. Variant I involves the drying of the brine with usage the residue as landfill in mines. This first variant is standard for liquid effluent and incurs costs of ca. 280 DM/m3. Variant II is directed at material utilisation of common salt contained in the brine. The necessary method for this variant was developed in our laboratory experiments. The estimated costs here are ca. 210 DM/m3. P ossible utilisation routes for the solid materials and the purified common salt were proposed. For both variants, the costs of treating the brine-specific effluent were compared. According to the comparisation, the treatment of brine from business having high pollution surcharges is to an increasing degree becoming economical. Whether a company producing brine waste can reduce effluent costs by using one of the proposed variants depending on many industrial factors and must be proven for each individual case.
Language
German