| 摘要 |
The present invention relates to an environment-friendly dredger and, more specifically, to an environment-friendly dredger which increases the dissolved oxygen by injecting nanobubbles having negative ions when sludge accumulated on the bottom of water is diffused underwater and contaminates the water during a process of excavating sand or rock on the bottom of water in a small stream, a river, a port, etc. to make the depth of water deep or to obtain construction materials using a dredging machine installed in the dredger, thereby controlling and removing anaerobe bacteria. Moreover, the present invention activates and increases aerobic bacteria, and removes contaminants and heavy metals by coupling the negative ions to the contaminants having positive ions. The environment-friendly dredger comprises: a nanobubble generating device; an angle control device which has a bracket, a tilting means, and a fan drive means; an input device which sets manual and automatic modes; and a control device which outputs a control signal. |
