Partial Sediment Dredging Method Developed for Conserving Ecosystem and Recycling Sedimentary Material

Abstract

In this research, we report about the improvement of a sediment dredging method and cases of application. The flocculation tank and the sedimentary sand tank were made one for a small space technology. All parts of this technology can be transported by one truck. An inverter was used so that the frequency can be changed. Accordingly, we can change the rotational frequency of the dredged pump. The flocculation tank was placed below a screen. The hydro-extractor discharge rate of sludge increased approximately twofold. This dredging method does not need a large space. We propose that this dredging method can be used at lakes in parks, small ponds, and other places. Furthermore, we propose that dredged sludge can be used for agricultural applications.