This study note wished to introduce special-purpose ship for algae removal that is
developed by core technology of our country. The ship is consisted of main frame and
adjuvant that can attach and detach as cross (+) shape of a character. The characteristics
of ship are super light weight and low draft. That is consisted of four devices as
suction, collection, filtration and recovering units. Among these, filtration used screen
filter (mesh size 30 μm). Also, can separate and remove water and algae by compression
air participle action. Percentage of moisture content of concentrated algal particle
was 85%. Water parted with algae finally is exhausted to water area. Removal efficiency
that compare by chlorophyll-a concentration was about 57% (inflow: 83.2 μg L-1,
outflow: 35.8 μg L-1) without physical and chemical pretreatment. Forward, need to
achieve effect test in various conditions (algal biomass, flow etc.) for efficiency and
technological elevation of exclusion device. We wished to contribute in presuppression
system construction of massive algal development that manage blue-green algae
occurrence area effectively, and prevents spread as lower part of reservoir.