Fabrication and Characterization of Immobilized Biosurfactant Produced by Pseudomonas aeruginosa Grown on Cassava Industrial Wastewater into Activated Allophane as an Adsorbent

International Conference on Advanced Materials for Better Future 2016

Suryanti, V.^1 ; Widjonarko, D.M.^1 ; Windrawati^1 ; Widyaningsih, V.^1

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta

57126, Indonesia^1

关键词: Bio surfactant;    Contact time;    Fabrication and characterizations;    Industrial wastewaters;    Mass ratio;    Optimum conditions;    Pseudomonas aeruginosa;    Surface acidity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/176/1/012005/pdf
DOI  :  10.1088/1757-899X/176/1/012005

来源: IOP

【 摘 要 】

The immobilization of biosurfactant into activated allophane has been conducted with mass ratio of biosurfactant:allophane of 1:5; 1:7 and 1:10 and contact time of 24 and 48 h. The optimum condition for immobilization was reached when the mass ratio of biosurfactant: allophane of 1:10 with the contact time of 24 h was applied. The result yielded the immobilization product having the specific surface area of 82.42 m2/g and the surface acidity of 9.12 mmol/g. A better adsorbent has been produced. In respect to the activated allophane, there was a decreasing of specific surface area about 20% and increasing of surface acidity value about 120%.