Laboratory Investigation of Deterioration and Natural Remediation of the Ariake Sea Tidal Flat Mud Caused by the Sea Laver Treatment Practice and Upward Seawater Seepage

摘要

In this paper, a series of laboratory infiltration tests were carried out to investigate the deterioration and natural remediation of the Ariake Sea tidal mud caused by the sea laver treatment practice and upward seawater seepage. The test results reveal that with the infiltration of the sea laver treatment agent in the tidal mud, mud sulfide content increased while pH decreased. The remediation test results indicate that with the infiltration of the fresh seawater, the sulfide content of the Iida site mud considerably reduced and pH value increased to an acceptable range for benthos living in the tidal flat mud.