The invention discloses a
cofferdam device capable of resisting to high wind
waves and intercepting bloom-forming
cyanobacteria. The
cofferdam device comprises foam floating bodies, wrapping cloth, skirt curtains and reinforcing bands, rubber wrapping cloth is used as the floating body wrapping cloth outside the floating bodies, the skirt curtains are reserved on the underside of the floating body wrapping cloth, a nylon strap or
rope serving as one reinforcing band is arranged in the middle of each skirt curtain, every two reinforcing bands are connected by a
metal hook connector, an iron chain is arranged at the lower end of each skirt curtain, the joints of two ends of each
cofferdam are fixed by
steel plates, two rows of holes are punched in each steel plate, the nylon ropes penetrate into the holes for connection, then the
metal hook connectors on the reinforcing bands are used for connecting the two ends, each cofferdam is connected with iron anchors at the two connectors by anchor lines, the iron anchors are thrown into a lakebed, and the anchor lines on the iron anchors are integrally connected with each cofferdam. The cofferdam device is simple in structure, easy and simple to operate, high in efficiency of capturing the bloom-forming
cyanobacteria and low in cost, water cofferdams are high in wind-wave-resisting capability, good in stability, convenient to operate and suitable for being arranged
underwater for a long term, and the problem of
mass cyanobacterial bloom accumulation in bloom-forming
cyanobacteria harvest is solved.