嘉应学院学报
嘉應學院學報
가응학원학보
JOURNAL OF JIAYING UNIVERSITY
2011年
8期
47-50
,共4页
王开峰%冯奕文%王培俊%田佳壁
王開峰%馮奕文%王培俊%田佳壁
왕개봉%풍혁문%왕배준%전가벽
Cd(Ⅱ)%豆渣%吸附
Cd(Ⅱ)%豆渣%吸附
Cd(Ⅱ)%두사%흡부
Cadmium%bean dregs%adsorption
研究了不同酸性条件下豆渣对水中Cd(II)的吸附特征.结果表明:(1)在强酸(pH=2.O)、中等酸性(pH=4.0)和弱酸(pH=6.0)条件下时豆渣对Cd(Ⅱ)的最大吸附率分别为55.4%、99.2%和79.4%,中等酸性条件下豆渣对水中cd(II)的吸附率最大.(2)豆渣对Cd(II)的吸附过程遵循F方程;而L方程对弱酸条件下的吸附过程拟舍较好(R2〉0.99).在中等酸性和弱酸条件下,豆渣吸附cd(Ⅱ)是向有利于吸附的方向进行的,而在强酸条件下则不利于吸附.
研究瞭不同痠性條件下豆渣對水中Cd(II)的吸附特徵.結果錶明:(1)在彊痠(pH=2.O)、中等痠性(pH=4.0)和弱痠(pH=6.0)條件下時豆渣對Cd(Ⅱ)的最大吸附率分彆為55.4%、99.2%和79.4%,中等痠性條件下豆渣對水中cd(II)的吸附率最大.(2)豆渣對Cd(II)的吸附過程遵循F方程;而L方程對弱痠條件下的吸附過程擬捨較好(R2〉0.99).在中等痠性和弱痠條件下,豆渣吸附cd(Ⅱ)是嚮有利于吸附的方嚮進行的,而在彊痠條件下則不利于吸附.
연구료불동산성조건하두사대수중Cd(II)적흡부특정.결과표명:(1)재강산(pH=2.O)、중등산성(pH=4.0)화약산(pH=6.0)조건하시두사대Cd(Ⅱ)적최대흡부솔분별위55.4%、99.2%화79.4%,중등산성조건하두사대수중cd(II)적흡부솔최대.(2)두사대Cd(II)적흡부과정준순F방정;이L방정대약산조건하적흡부과정의사교호(R2〉0.99).재중등산성화약산조건하,두사흡부cd(Ⅱ)시향유리우흡부적방향진행적,이재강산조건하칙불리우흡부.
Adsorption of Cd ( H ) by bean dregs is studied under different acidic conditions. The results indicate that the maximum value of adsorption capacity is 55.4%, 99.2% and 79.4%, respectively in the pH 2.0, 4. O, 6.0 of acid medium. The adsorption process of adsorption of Cd ( 1[ ) by bean dregs better follows the Freundlich adsorption isotherm, and the adsorption process better follows Langmuir adsorption isotherm in a weak acid medium (R2 〉0.99). The medium acid and weak conditions are propitious to the adsorption of Cd( 11 ) by bean dregs than the strong acid condition.