Sekundärrohstoffe aus Abfall-Lösungen |
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Authors: | H. -J. Külps S. T. Gellermann H. Neugebauer |
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Affiliation: | 1. Gesellschaft für umweltfreundliche Wertstoffaufbereitung, GbR, Dammweg 7a, D-W-6500, Mainz
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Abstract: | Every year about 40 000 m3 of waste solutions from photographic fixing and developing processes are produced in Germany. A new method of reclaiming some base chemicals (silver, fixing salt, gypsum and ammonia) from these solutions has been developed for black and white photographic processes. The remaining waste water has a low COD-value and low concentration of dissolved salts. This method is considered further to develop the state-of-the-art technique and is economically feasible. |
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