Cleaning of Tidal Flat Soil by Tidal Energy

Abstract

ABSTRACT: The Purpose of this research is development of the sustainable method to recover the tidal flat polluted by the reductive matters due to leaching out and oxidizing the matters of the bottom soil with the oxygen rich sea water using tidal energy. The leaching out and oxidizing the reductive matters out ofthe bottom soil with the oxygen rich sea water were confirmed through batch test and column test in laboratory, and in field column test. The ratio of COD reduction due to leaching and oxidizing ofthe bottom soil in column tests, however, were not sufficient because of the low permeability of bottom soil consolidated by seepage pressure. The device was found necessary to keep or increase the permeability of bottom soil during leaching.