Removal of Mo(VI) Ion from Waste Water with Lead Compounds.
Removal of Mo(VI) Ion from Waste Water with Lead Compounds.
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用铅化合物去除废水中的 Mo(VI) 离子。
DOI：
10.2473/shigentosozai.118.81
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
T. Fujita
中科院分区：
文献类型：
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作者：
Atsushi Uchida;H. Koyanaka;S. Okubo;T. Fujita
对吸附法去除工业废水中的钼进行了实验研究。本研究的结果如下：(1)铅化合物对含钼废水中的六价钼离子具有一定的吸附能力。在溶液pH=3∼7，初始钼离子浓度为50 mg·dm-3，搅拌时间为2 h的条件下，钼(VI)的最大吸收率为0.049 kg·kg-1.(2)加入0.5mol·dm-3氢氧化钠，可将吸附在铅化合物中的钼洗脱到99%以上.(3)对钼催化剂生产过程中产生的工业含钼废水(含钼浓度为270 mg·dm-3，pH=8)也成功地进行了脱除.处理后的废水中钼浓度在反应时间30分钟内降至检出限以下。这项研究证实了我们所提出的方法的可行性。
An experimental study on the removal of molybdenum from industrial waste water by adsorption method was carried out. The findings of the present study were as follows:(1) The lead compound showed the ability to adsorb Mo(VI) ion from an artificial molybdenum waste water. The maximum uptake of Mo(VI) was 0.049 kg·kg-1 under the following conditions : solution pH = 3 ∼ 7, initial concentration of Mo(VI) ion = 50 mg·dm-3, and agitation time = 2 h.(2) 99 % of adsorbed molybdenum was eluted from the lead compound by adding 0.5 mol·dm-3 NaOH.(3) We also succeeded in removing Mo(VI) from industrial molybdenum waste water (Mo concentration = 270 mg·dm-3, pH = 8) produced during the process of production molybdenum catalysts. The molybdenum concentration of the treated waste water decreased below the detection limit within 30 minutes of reaction time. This study confirmed the viability of our proposed method.