Al3+改性膨润土负载壳聚糖对活性艳橙的吸附研究

探讨了Al3+改性膨润土负载壳聚糖复合吸附剂的制备及用其吸附处理活性艳橙的工艺条件.研究结果表明:膨润土在Al3+为10.0g.L、搅拌2 h的改性条件下吸附性能和过滤性能显著提高;当负载量为0.03g/g、复合吸附剂质量为5.0 g/L在最佳条件下即pH为6、温度为25℃、转速为150 r/min恒温振荡45 min...

THE REACTIVE BRILLIANT ORANGE ADSORPTION RESEARCH OF AL~(3+) MODIFIED BENTONITE BY LOADING WITH CHITOSAN

We study the preparation of Al3＋ modified bentonite load chitosan composite adsorbent. Furthermore,we discuss the optimal operation condition of reactive brilliant orange adsorption. The experiment show that the property of adsorption and filtration was significant promoted,when Al3＋ concentration was 10.0 g/L and stirring time was 2 h. The optimal condition was pH of 6,temperature of about 25℃ and rotated speed of 150r/min. In this condition,the decolorization of 9.47 mg/L reactive brilliant orange was more than 92% when the load,the composite absorbent and vibration time were 0.03 g/g ,5.0 g/L and 45 min respectively. The results also show that the adsorption was in accordance with Langmuir equation. The chroma of water after treatment can meet level of wastewater discharge standard《GB8978-2002》.