Research of processes of lead ion sorption on bentonite clay and pectin

International Scientific Conference «AGRITECH-2019: Agribusiness, Environmental Engineering and Biotechnologies»

农业科学;生态环境科学;生物科学

Mostalygina, L.V.^1 ; Elizarova, S.N.^1 ; Kostin, A.V.^1 ; Mostalygin, A.G.^1

Kurgan State University, Kurgan, Russia^1

关键词: 10 minutes;    Bentonite clay;    Equilibration time;    Langmuir models;    Lead ions;    Sorption isotherms;    Sorption process;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/315/5/052074/pdf
DOI  :  10.1088/1755-1315/315/5/052074

来源: IOP

【 摘 要 】

The kinetics of lead ion sorption on the pectin, excreted from vegetable objects, bentonite clay and complex sorbing agent, received on their basis, is studied. It is shown that the speed of sorption is maximum in the initial 10 minutes. The equilibration time ranges from 30 to 90 minutes, depending on the concentration of metal ions and the composition of sorbing agent. The processing of experimental sorption isotherm is made it is stated that Langmuir model suits best for the description of sorption processes.