Abstract
It is a problem that sediment flows out by rolling up the bottom mud. Based on the results of previous studies, the effectiveness of superficial solidification technology using enzymes derived from microbial functions has been clarified from the study of Lake Ichkeul in Tunisia. Therefore, in this research, for the purpose of evaluating the applicability of this technology to domestic and shortening the construction period, we examined the effectiveness of the proposed technology by the enzyme catalytic method for domestic surface sediments. In the test, two cases of specimens for long-term construction and short-term construction were prepared. According to the results of the test, it became clear that turbidity suppression by enzyme catalytic method for domestic sediments is possible. In addition, CT imaging revealed that as the thickness of the calcite membrane deposited on the surface layer of the sediment became thicker, the surface strength increased and gaps were formed between the calcite and the bottom mud.
