18-04-2013 дата публикации
Номер: US20130092057A1
In the treatment method for converting chlorine-containing waste into raw material for cement, fly ash and desalinated dust are treated, harmful substances such as selenium or heavy metals are removed from the chlorine-containing waste which is the fly ash or desalinated dust by a polymer flocculant or a chelating agent, or by a reducing agent, a polymer flocculant, and electrolytic treatment, and solid components that are generated during the treatment is used as the raw material for cement. 1. A treatment method for converting chlorine-containing waste into a raw material for cement comprising:{'b': 2', '22', '1', '1', '2', '11', '2', '12', '11', '15', '15', '15', '11', '13', '12', '14', '13', '14', '12', '14, 'fluidizing the waste (D) by adding water to chlorine-containing fly-ash waste (D) and conducting solid-liquid separation by filtering (, ) slurry (S) in which the chlorine is dissolved (), using obtained solid cake C as the raw material for cement, precipitating () heavy metals by adjusting pH of filtrate F to 9 to 10 and adding a reducing agent, adding a polymer flocculant () to slurry S containing the heavy metal precipitates, settling flock by agglomerating the heavy metals, conducting solid-liquid separation () by filtering the flock, using obtained solid cake C as the raw material for cement, circulating filtrate F in the precipitation () treatment of the heavy metals, adding () a chelating agent to supernatant F after separating the settled flock, conducting solid-liquid separation by filtering () slurry S in which a chelate of the heavy metals is formed, circulating obtained solid components M in the polymer flocculant treatment (), and discharging filtrate F;'}{'b': 22', '21', '21', '22', '24', '22', '23', '27', '27', '25', '24', '26', '25', '27', '27', '27', '25', '26', '28', '29', '28', '29', '29, 'fluidizing the waste by adding water to the chlorine-containing desalinated dust waste (D), conducting solid-liquid separation by filtering () slurry S ...
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