| 摘要 |
Process and apparatus for the treatment of brines and contaminated mineral salts or mixtures thereof The invention concerns a process for the treatment of brines and contaminated mineral salts or mixtures thereof, comprising the steps of (a) substantially separating organic components from the process mixture, (b) subjecting the resulting mixture to a vacuum evapo ration step, (c) thermally treating the partially dried mineral salts or mixtures thereof at an elevated temperature and thereafter obtaining pure dry mineral salts or mixtures thereof, (d) condensing the vapour of the vacuum evaporation step and subjecting said vapour to a reverse osmosis step, and (e) obtaining from said reverse osmosis step pure water, as well as an apparatus for carrying out said process, substantially comprising a means 1 for separating organic components from the process mixture, a vacuum evaporation means 4 in order to partially dry said mineral salts or mixtures thereof, a means 5 for thermal treatment of the partially dried mineral salts or mixtures thereof from the vacuum evaporation means 4, a condenser 7 for condensing the humid vapours from the vacuum evaporation means 4 and a means 9 for reverse osmosis treatment of the condensate as well as suitable conveying devices between said parts of the apparatus.
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