镁盐改性凹凸棒土颗粒制备优化及磷吸附特性

镁盐改性凹凸棒土颗粒制备优化及磷吸附特性

陆谢娟,童山原,冯璐,毛娟,吴晓晖,史诗乐

Optimization of preparation of magnesium salt modified attapulgite particles and adsorption characteristics of phosphate

Xiejuan Lu,Shanyuan Tong,Lu Feng,Juan Mao,Xiaohui Wu,Shile Shi

表7 Mg-TAP对磷的吸附动力学拟合参数

C₀/(mg·L^-1)	q_{e, exp}/(mg·g^-l)	准一级吸附动力学模型				准二级吸附动力学模型
C₀/(mg·L^-1)	q_{e, exp}/(mg·g^-l)	q_{e, model}/(mg·g^-l)	k₁	R²		q_{e, model}/(mg·g^-l)	k₁	R²
5	0.886 5	0.819 2	0.423 8	0.975 2		0.907 4	0.594 9	0.970 3
20	3.798 1	3.512 7	0.252 6	0.981 0		3.917 9	0.082 0	0.989 6
50	6.719 8	6.271 7	0.142 9	0.966 5		7.134 9	0.024 2	0.986 4