FLOCCULATION AND DEHYDRATION CONTROL DURING SOIL WASHING PROCESS USING SOIL PLASTICITY INDEX AND pH
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概要
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The target of soil washing is to separate and densificate fine soil particles by sieving, cycloning and floatation, since the heavy metal and the oil pollution exist in the fine soil particles. The fine soil particles separated from polluted soil are flocculated and densificated to be conveyed to the controlled waste deposit. It is necessary to conduct the rapid flocculation and the large dehydration to create the efficient and economic soil washing system. The proper selection of flocculant type and its concentration is essential for the rapid flocculation and large dehydration. In this paper, the experimental investigation on the proper flocculants concentration criterion for the rapid flocculation and large dehydration is conducted using soil plasticity index and its pH value. The criterion was validated by the actual flocculants usage in the soil washing plant.
- 社団法人 土木学会の論文
社団法人 土木学会 | 論文
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