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    • 6. 发明公开
    • METHOD AND APPARATUS FOR TREATING NITRATE WASTE LIQUID
    • VERFAHREN UND VORRICHTUNG ZUR BEARBEITUNG EINERNITRATABFALLFLÜSSIGKEIT
    • EP2239742A1
    • 2010-10-13
    • EP09709132.6
    • 2009-02-06
    • Mitsubishi Heavy Industries, Ltd.
    • OGAWA, NaokiSHIBATA, KatsushiKURODA, KazuhikoNAGAYASU, HiromitsuTAKAHASHI, KuniakiKAWATO, YoshimiMEGURO, Yoshihiro
    • G21F9/18C02F3/34G21F9/06
    • C02F3/34C02F1/66C02F3/1268C02F3/302C02F2101/006C02F2101/163C02F2305/06G21F9/06G21F9/18Y02W10/15
    • To provide an apparatus for treating a nitrate waste liquid that includes a denitrification tank (12A) which accommodates active sludge that adsorbs or takes in the radioactive substance in a nitrate waste liquid (11) and in which an anaerobic microorganism that reduces the nitric acid to nitrogen gas grows, and a reaeration tank (14) in which a denitrification-treated liquid (24) treated in the denitrification tank (12A) is aerated and mixed with active sludge. A pH adjuster (21), a first carbon source (22A) and a second carbon source (22B) different in type from each other, and nitrogen gas (N 2 ) are supplied to the denitrification tank (12A) so as to separate a denitrified liquid into a solid content and the denitrification-treated liquid (24) by using a first solid-liquid separating film (25), and the denitrification-treated liquid (24) treated with the active sludge in the reaeration tank (14) is reaerated and separated into a solid content and a reaeration-treated liquid (27) by using a second solid-liquid separating film (28).
    • 提供一种处理硝酸盐废液的装置,其包括:反硝化池(12A),其容纳吸收或吸收硝酸盐废液(11)中的放射性物质的活性污泥,其中将硝酸废水的厌氧微生物降至 氮气生长,并且在反硝化池(12A)中处理的脱氮处理液体(24)充气并与活性污泥混合的再循环罐(14)。 供给不同类型的pH调节剂(21),第一碳源(22A)和第二碳源(22B)和氮气(N 2),以分离出脱氮罐 通过使用第一固液分离膜(25)将脱氮液体转化成固体成分,脱氮处理液(24),在再循环槽(14)中用活性污泥处理的脱氮处理液(24) 通过使用第二固液分离膜(28)再次再分离成固体成分和再曝光处理液(27)。