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- Drehrohrofen (1)
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- Rietveld method (1)
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The Rietveld method was used to reliably interpret severely superimposed diffraction patterns of a sewage sludge ash before and after being turned into an ecologically desirable, high-quality fertilizer by a newly-developed method of thermochemical treatment. The thermochemical treatment causes severe changes in the phase composition of the ash, which can be described as a mixture of a large number of solid solution phases.