摘要
研究了净水用活性炭吸附铀矿坑道水和重铀酸铵沉淀母液中铀。试验表明 ,控制流动相的 pH值为 4 .7～ 8.0 ,逆流通过 4 0cm高的活性炭层 ,U (Ⅵ )的吸附率 >96 %。用高灵敏度的U(Ⅵ ) 偶氮胂Ⅲ光度法 。
A study on the separation of uranium in the uranium mine gallery water and in the mother liquor of precipitation of ammonium uranate by adsorption on active carbon is reported in this paper. It is found that a recovery of greater than 96% is obtained by this adsorption process, when the waste water at pH 4.7～8.0 is acted as mobile phase and is passed through a column packed with a layer of active carbon of 40cm in height in a counter current direction. The uranium remained in the effluent wast water from the adsorption column is then determined photometrically with arsenazo Ⅲ as chromogenic reagent. The hexavalent uranium is reduced rapidly by the new reduction system composing of Fe(Ⅱ), EDTA and ascorbic acid.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2001年第6期261-262,265,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
