PROBLEM TO BE SOLVED: To treat the contamination of water utilizing a dead space at the center of a culture pond.SOLUTION: This water treatment apparatus for a culture pond includes a water cultivation apparatus 15 with a rotating arm 16 provided with paddle blades 20, floating on the water surface a carbon fiber filter material 6 provided inside a wall surface part 3 a sludge collecting strainer 9 provided at a bottom part 5 a tower tank 10 storing inside biofilters 11 and having a large number of protrusions on the surfaces and floating by air and air ejectors 23, 32 disposed inside and outside the tower tank 10 to eject air from an air source, and installed at the center of the pond. A separation chamber 40 connected to the strainer through a connecting pipe 39 is provided below an auxiliary filtration tank 35 storing a biological filter material 37 formed by laminating glass foam filter materials having a large number of pores in the surfaces, and an air lift 48 for feeding treated water to the culture pond is provided at the upper part of the biological filter material.COPYRIGHT: (C)2013,JPO&INPIT【課題】 養殖池の中心のデッドスペースを利用して水の汚れを処理する。【解決手段】 水掻羽根20を設けた回転アーム16を水面に浮かべた耕水機15と、前記壁面部5の内側に設けた炭素繊維濾過材6と、底部5に設けたヘドロ収集用のストレーナ9と、エアーにより流動して表面に多数の突起を有したバイオフィルタ12を内部に収容したタワー槽10と、タワー槽10の内外に配してエアー源からのエアーを噴出するエアー噴出器23,32を池の中心に設置し、表面に多数の小孔を有したガラス発泡濾過材を積層してなる生物濾過材37を収容した補助濾過槽35の下方に、連結管39を介して前記ストレーナに連結した分離室40を設け、該生物濾過材の上部に処理水を前記養殖池に送るエアリフト48を設けてある。【選択図】図1
