PROBLEM TO BE SOLVED: To facilitate reduction of a use amount of washing liquid, suppression of mixing of sterilization liquid into recovered washing liquid, and management of chemical agent concentration in the sterilization liquid.SOLUTION: A vegetable washing device includes a sterilization part 20 for spraying sterilization liquid containing a chemical agent, a sterilization liquid accumulation part 100 for accumulating the sterilization liquid sprayed by the sterilization part and recovered, a washing part 35 for spraying washing liquid, a washing liquid accumulation part 110 for accumulating the washing liquid sprayed by the washing part and recovered, a conveyance part 10 for sequentially conveying vegetables to a sterilization liquid spraying region and a washing liquid spraying region, a first liquid feeding part for feeding a portion of the sterilization liquid accumulated in the sterilization liquid accumulation part to the sterilization part, a second liquid feeding part for feeding a portion of the washing liquid accumulated in the washing liquid accumulation part to the washing part, a third liquid feeding part for feeding a portion of the washing liquid accumulated in the washing liquid accumulation part to the sterilization liquid accumulation part, a measuring part 93 for measuring weight of the washing liquid fed to the sterilization liquid accumulation part by the third liquid feeding part, a chemical agent supply part 130 for supplying the chemical agent to the sterilization liquid accumulation part, and a control part for controlling the chemical agent supply amount according to the result of the measurement.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】洗浄液の使用量の低減、回収した洗浄液への殺菌液の混入抑制、殺菌液における薬剤濃度の管理を容易にする。【解決手段】薬剤を含む殺菌液を噴霧する殺菌部20と、殺菌部で噴霧されて回収された殺菌液を貯留する殺菌液貯溜部100と、洗浄液を噴霧する洗浄部35と、洗浄部で噴霧されて回収された洗浄液を貯留する洗浄液貯溜部110と、殺菌液の噴霧領域および洗浄液の噴霧領域に順次野菜を搬送する搬送部10と、殺菌液貯溜部に貯留された殺菌液の一部を殺菌部に送液する第1送液部と、洗浄液貯溜部に貯留された洗浄液の一部を洗浄部に送液する第2送液部と、洗浄液貯溜部に貯留された洗浄液の一部を殺菌液貯溜
