银耳对水中亚甲基蓝的吸附动力学研究

摘要

Using methylene blue as an example,tremella powder as adsorbent,the adsorption of organic dye wastewater was studied.The effects of pH,adsorption time and quantity of inputs on the adsorption of tremella were investigated,the adsorption kinetic model were also analyzed.The results show that the adsorption of methylene blue in wastewater process with tremella accords with the pseudo-second-order kinetic model.At 25 ℃,methylene blue initial concentration 0.1 mmol/L,adsorbent concentration 8 mg/mL and the adsorption time 1 h,the adsorption rate reached 93.44%.%以亚甲基蓝为例,用银耳粉末作为吸附剂,对有机染料废水进行吸附研究.考察pH值、吸附时间以及银耳投入量等因素对吸附的影响,并分析了其吸附动力学模型.结果表明,银耳吸附废水中亚甲基蓝过程符合假二阶动力学模型.在25 ℃、亚甲基蓝起始浓度0.1 mmol/L以及吸附剂浓度8 mg/mL的条件下,吸附1 h,吸附率为 93.44%.