Efficiency Improvement of Some Agricultural Residue Modified Materials for Textile Dyes Absorption

4th International Conference on Advanced Engineering and Technology

Boonsong, P.^1 ; Paksamut, J.^1

Department of Social and Applied Science, College of Industrial Technology, King Mongkut's University of Technology North Bangkok, Bangkok

10800, Thailand^1

关键词: Adsorbent materials;    Adsorption capacities;    Adsorption efficiency;    Adsorption performance;    Ananas comosus (L.) Merr;    Efficiency improvement;    Hydrochloric acid solution;    Sodium hydroxide solutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/317/1/012035/pdf
DOI  :  10.1088/1757-899X/317/1/012035

来源: IOP

【 摘 要 】

In this work, the adsorption efficiency was investigated of some agricultural residue modified materials as natural bio-adsorbents which were rice straw (Oryza sativa L.) and pineapple leaves (Ananas comosus (L.) Merr.) for the removal of textile dyes. Reactive dyes were used in this research. The improvement procedure of agricultural residue materials properties were alkali-acid modification with sodium hydroxide solution and hydrochloric acid solution. Adsorption performance has been investigated using batch experiments. Investigated adsorption factors consisted of adsorbent dose, contact time, adsorbent materials and pH of solution. The results were found that rice straw had higher adsorption capacity than pineapple leaves. The increasing of adsorption capacity depends on adsorbent dose and contact time. Moreover, the optimum pH for dye adsorption was acidic range because lowering pH increased the positively charges on the adsorbent surface which could be attacked by negatively charge of acid dyes. The agricultural residue modified materials had significant dye removal efficiency which these adsorbents could be used for the treatment of textile effluent in industries.