METHOD FOR RECOVERING MERCURY FROM WASTE FLUORESCENT LAMP, AND ITS RECOVERING DEVICE

摘要

PROBLEM TO BE SOLVED: To safely and efficiently recover mercury from an inner surface of a waste fluorescent lamp without scattering the mercury during the recovery treatment. SOLUTION: The mercury recovering device comprises a dissolution tank 2 in which a plurality of waste fluorescent lamps and a mercury solution 3 are stored, a breaking machine 4 to break the waste fluorescent lamps, a mercury adsorbent 7 provided in the middle of a passage 5 for removing mercury, a water storage tank 6 to store the mercury solution 3, a circulating feed passage 9 to feed the mercury solution 3 stored in the water storage tank 6 into the dissolution tank 2 in a circulating manner, a pump 51 and a pump 91 respectively provided in the middle of the passage 5 for removing the mercury and, the circulating feed passage 9 or the like.