环境工程学报
環境工程學報
배경공정학보
CHINESE JOURNAL OF ENVIRONMENTAL ENGINEERING
2009年
11期
2109-2112
,共4页
超细粉煤灰基吸附剂%动态吸附%亚甲基蓝Cr~(6+)
超細粉煤灰基吸附劑%動態吸附%亞甲基藍Cr~(6+)
초세분매회기흡부제%동태흡부%아갑기람Cr~(6+)
ultralfine coal flyash-based adsorbent%dynamic adsorption%methylene blue%Cr~(6+)
以粉煤灰为原料制备成型吸附剂,对水溶液中亚甲基蓝和Cr~(6+)进行动态吸附研究,绘制穿透曲线,利用Origin软件对实验数据分析处理,得出穿透曲线的通式C_t=A_1-A_2/1+(t/t_0)~p+A_2.结果表明,初始浓度C_0=25 mg/L,填料高度不同时,达到穿透点的时间随填料高度的增加而增加;填料高度h=200 mm,初始浓度不同时,达到穿透点的时间随初始浓度的增加而减小;该吸附剂对有机染料和重金属离子均有较好的吸附性能;穿透曲线通式的回归线性相关系数表明,该通式可很好地反映超细粉煤灰成型吸附剂的动态吸附过程.
以粉煤灰為原料製備成型吸附劑,對水溶液中亞甲基藍和Cr~(6+)進行動態吸附研究,繪製穿透麯線,利用Origin軟件對實驗數據分析處理,得齣穿透麯線的通式C_t=A_1-A_2/1+(t/t_0)~p+A_2.結果錶明,初始濃度C_0=25 mg/L,填料高度不同時,達到穿透點的時間隨填料高度的增加而增加;填料高度h=200 mm,初始濃度不同時,達到穿透點的時間隨初始濃度的增加而減小;該吸附劑對有機染料和重金屬離子均有較好的吸附性能;穿透麯線通式的迴歸線性相關繫數錶明,該通式可很好地反映超細粉煤灰成型吸附劑的動態吸附過程.
이분매회위원료제비성형흡부제,대수용액중아갑기람화Cr~(6+)진행동태흡부연구,회제천투곡선,이용Origin연건대실험수거분석처리,득출천투곡선적통식C_t=A_1-A_2/1+(t/t_0)~p+A_2.결과표명,초시농도C_0=25 mg/L,전료고도불동시,체도천투점적시간수전료고도적증가이증가;전료고도h=200 mm,초시농도불동시,체도천투점적시간수초시농도적증가이감소;해흡부제대유궤염료화중금속리자균유교호적흡부성능;천투곡선통식적회귀선성상관계수표명,해통식가흔호지반영초세분매회성형흡부제적동태흡부과정.
Forming ultrafine coal flyash-based adsorbent( FUFA ) was prepared from coal flyash. Dynamic adsorption of methylene blue (MB) and Cr~(6+) on the adsorbent was studied. Breakthrough curve was drawed, and the experimental data were dealt by Origin software to get the model of breakthrough curve equation ( C_t =
A_1-A_2/1+(t/t_0)~p+A_2).The results showed that when initial concentration was 25 mg/L with varying filling height,
the time to penetration point increased with filling height increased. When the filling height was 200 mm with different initial concentration, the time to penetration point reduced with initial concentration increased. The adsorbent had better capacity for both organic dye and heavy metals ion. It indicated that this model was fit for the dynamic adsorption of MB and Cr~(6+) on the FUFA by linear correlative coefficient of breakthrough curve.
