中南大学学报（自然科学版）2017，Vol.48Issue(9)：2271-2278,8.DOI:10.11817/j.issn.1672-7207.2017.09.003
铁盐改性柚子皮对含铬废水的吸附性能
Adsorption performance of Fe(Ⅲ)-modified pomelo peel on wastewater containing Cr(Ⅵ)
摘要
Abstract
To remove the chromium Cr6+ion in waste water, the adsorbent of FeCl3-modified pomelo peel was manufactured by adjusting its mass ratio. Firstly, the two modified biomass adsorbents were obtained after the common processes, i.e. the stirring process of pre-synthesized powder mixtures of the pomelo-peel and FeCl3in water under the ordinary temperature and the drying process at (85±2) ℃ for 24 h, with the sole difference in the mass fraction of FeCl3 being 1% for No.1 sample and 9% for No.2 sample, respectively. The results show that the maximum unit adsorption capacities of No.1 sample and No.2 sample are 1.98 mg/g and 26.6 mg/g, respectively, And the two samples can be depicted by the typical Isothermal Equations of Langmuir and Freundlich, respectively. The better property may be attributed to the properly higher ratio of FeCl3. The adsorbent of FeCl3-modified pomelo peel plays an important role in the chromium Cr6+water treatment and the recycling utilization of the biomass material, which is attributed to the automatic- control of pH, easy-operation and nonexistence of secondary pollutions.关键词
柚子皮/FeCl3/六价铬/吸附/改性Key words
pomelo peel/FeCl3/hexavalent chromium/adsorption/modification分类
资源环境引用本文复制引用
付宏渊,邱祥,王琼,何忠明..铁盐改性柚子皮对含铬废水的吸附性能[J].中南大学学报（自然科学版）,2017,48(9):2271-2278,8.基金项目
国家科技支撑计划项目(2014BAC09B01-02) （2014BAC09B01-02）
国家自然科学基金资助项目(51508079, 51508042, 51678073) （51508079, 51508042, 51678073）
浙江省交通运输厅科技项目(2014H22) (Project(2014BAC09B01-02) supported by the National Science & Technology Pillar Program （2014H22）
Projects(51508079, 51508042, 51678073) supported by the National Natural Science Foundation of China （51508079, 51508042, 51678073）
Project(2014H22) supported by Science and Technology Program of Zhejiang Provincial Department of Transportation) （2014H22）
