Application of chitosan in removal of molybdate ions from contaminated water and groundwater

被引：57

作者：

Bertoni, Fernando A. ^{[1
,2
]}

Gonzalez, Juan C. ^{[1
,2
]}

Garcia, Silvia I. ^{[1
,2
]}

Sala, Luis F. ^{[1
,2
]}

Bellu, Sebastian E. ^{[1
,2
]}

机构：

[1] Univ Nacl Rosario, Fac Ciencias Bioquim & Farmaceut, Dept Quim Fis, Area Quim Gen & Inorgan, Suipacha 531,S2002LRK, Rosario, Santa Fe, Argentina

[2] Consejo Nacl Invest Cient & Tecn, Inst Quim Rosario, Suipacha 570,S2002LRK, Rosario, Santa Fe, Argentina

来源：

CARBOHYDRATE POLYMERS | 2018年 / 180卷

关键词：

Adsorption; Chitosan; Molybdenum; Groundwater; MULTINUCLEAR NMR-SPECTROSCOPY; AQUEOUS-SOLUTIONS; CONTINUOUS SORPTION; METAL-IONS; ADSORPTION; COMPLEXES; MODEL; BIOSORPTION; ADSORBENT; TUNGSTATE;

D O I：

10.1016/j.carbpol.2017.10.027

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Water pollution by heavy metals represents a serious problem around the world. Among various treatment techniques for water remediation, adsorption is an effective and versatile method due to the low cost, effectiveness and simplicity. Chitosan is a cationic polysaccharide with an excellent adsorption capacity of heavy metal ions. Chitosan has a high molybdate adsorption capacity (265 +/- 1 mg g(-1)) at 20 degrees C and pH 2.7. Participation of hydroxyl groups in the adsorption of molybdate anions was confirmed by FT-IR analysis. SEM images showed that morphological surface changes happen after Mo-VI adsorption. Continuous adsorption data were best fitted by Modified Dose-Response model. Scale-up of continuous processes was achieved applying bed depth service time (BDST) model. Application of chitosan in molybdate removal from real groundwater samples suggest that this polysaccharide is a good option to be used for household purposes.

引用

页码：55 / 62

页数：8

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