PROBLEM TO BE SOLVED: To provide an apparatus for soil disinfection, which prolongs a continuous spray operation time by using a relatively small-sized antiseptic solution tank and reduces air release operation times per unit spray time.SOLUTION: The apparatus for soil disinfection is equipped with first and second antiseptic solution tanks 2 and 2a holding an antiseptic solution, a pump 5 which sucks and delivers the antiseptic solution in the antiseptic solution tanks 2 and 2a, a spray part 7 for spraying the antiseptic solution delivered by the pump 5, a first suction pipe 4 having one end connected to the suction port of the pump 5 and the other end opened to the lower part of the first antiseptic solution tank 2, a second suction pipe 14 having one end opened to the upper part of the first antiseptic solution tank 2. The first antiseptic solution tank 2 is depressurized to negative pressure by driving the pump 5 and the antiseptic solution in the second antiseptic solution tank 2a is made to flow into the first antiseptic solution tank 2.COPYRIGHT: (C)2008,JPO&INPIT【課題】比較的小形の消毒液タンクを用いて連続散布作業時間を長くすることができ、また、単位散布時間当たりの空気抜き作業回数を低減することができる土壌消毒装置を提供する。【解決手段】消毒液が収容されている第1及び第2の消毒液タンク2,2aと、該消毒液タンク2,2a内の消毒液を吸込んで吐出するポンプ5と、該ポンプ5が吐出する消毒液を散布する散布部7と、一端がポンプ5の吸込口に接続され、他端が第1の消毒液タンク2内の下部に開口すべき第1吸込管4と、一端が第1の消毒液タンク2内の上部に開口すべき第2吸込管14とを備え、ポンプ5の駆動により第1の消毒液タンク2内を負圧とし、第2の消毒液タンク2a内の消毒液を第1の消毒液タンク2内に流入させるように構成した。【選択図】図2
