| 摘要 |
PURPOSE:To perform satisfactory dehydration even of org. sludge which is not easily dehydrated and to obtain dehydrated cake having low water content by treating org. sludge by adding a cationic surface active agent, an anionically modified natural polymer, and an org. polymer flocculant. CONSTITUTION:At least one cationic surface active agent such as alkylamine salt, alkyl quat. ammonium salt, alkyl isoquinolinium salt, alkyl picolinium salt, alkyl pyridinium salt, alkyl imidazolinium salt, alkyl dimethyl benzyl ammonium salt, alkylamido methyl pyridinium salt, alkyl oxymethyl pyridinium salt, polyoxyethylene alkylamine, anionically modified natural polymer such as vegetable polymer mucilage, animal protein, fermented mucilage, starch, cellulose, an org. polymer flocculant, are added to org. sludge to treat the org. sludge. As a result, org. sludge which is not easily dehydrated conventionally can be dehydrated effectively.
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