Preparation of un-tanned pig skin waste-loaded metal ions adsorbents and their adsorption behaviors to fluoride, Phosphate and arsenate in aqueous solutions
Leather making process inevitably produce skin wastes due to the operation of splitting, trimming and shaving. The production of un-tanned skin waste is increasing since the wet-white technology is widely adopted. The un-tanned skin wastes are characterized by a high content of collagen protein. Considering the high activity of collagen protein towards many metal ions, it is feasible to obtain low-cost adsorbents by the reaction of un-tanned skin waste with different metal ions such as Fe(III) and Zr(IV), which can be applied for the effective removal of fluoride, phosphate and arsenate from aqueous solutions. In this study, two kinds of adsorbents, un-tanned pigskin waste-loaded Fe(III) or Zr(IV) (denoted as: UPW-Fe or UPW-Zr), were prepared and batch adsorption experiments were carried out to evaluate their adsorption behaviors, including the effect of pH, adsorption isothermal, as well as the adsorption kinetics. As a result, both UPW-Fe and UPW-Zr exhibited excellent adsorption capacities and fast adsorption rate to fluoride, phosphate and arsenate in aqueous solutions. These investigations provide a promising alternative utilization of un-tanned skin waste.
Un-tanned skin waste Metal ions adsorbents Adsorption Fluoride Phosphate Arsenate
Xin Huang Too Ren Me Chen Xuepin Liao Bi Shi
National Engineering Laboratory for Clean Technology of Leather Manufacture University, Chengdu, 610065, P.R.China
国际会议
北京
英文
243-253
2009-10-11（万方平台首次上网日期，不代表论文的发表时间）