铁锰复合氧化物/壳聚糖珠:一种环境友好型除磷吸附剂
文献类型:期刊论文
作者 | 付军; 范芳; 李海宁; 张高生![]() |
刊名 | 环境科学
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出版日期 | 2016-11-25 |
卷号 | 37期号:11页码:25-29+35 |
关键词 | 铁锰复合氧化物 壳聚糖珠 磷 吸附 废水 |
ISSN号 | 0250-3301 |
其他题名 | Fe-Mn Binary Oxide Impregnated Chitosan Bead ( FMCB) : An Environmental Friendly Sorbent for Phosphate Removal |
产权排序 | (1)中日友好环境保护中心;(2)中国科学院烟台海岸带研究所海岸带环境过程与生态修复重点实验室;(3)西安工程大学环境与化学工程学院 |
通讯作者 | 张高生 |
中文摘要 | 采用两步法制备了一种环境友好型除磷基吸附剂——铁锰复合氧化物/壳聚糖珠(FMCB),对其进行了表征,并对其磷吸附行为进行了系统研究.表征结果表明,该吸附剂为多孔纤维结构,比表面积为248 m~2·g~(-1),孔容为0.37 m~3·g~(-1).吸附实验结果表明,FMCB对磷的吸附容量远高于纯的壳聚糖颗粒,且Langmuir模型能更好地拟合FMCB对磷的吸附,最大吸附量为13.3 mg·g~(-1)(pH 7.0);准二级动力学模型能更好地拟合FMCB对磷吸附的动力学实验数据;溶液pH对磷的吸附影响较大,随着pH的增大,磷的吸附量逐渐降低;共存的Ca~(2+)和Mg~(2+)对磷吸附略有促进... |
英文摘要 | Fe-Mn binary oxide impregnated chitosan bead ( FMCB) , an environmental friendly sorbent for phosphate removal, wasfabricated through impregnating Fe-Mn binary oxide into chitosan matrix. The FMCB was characterized by SEM and BET surface areameasurement. The adsorption behavior of phosphate on the FMCB was systemically investigated. The FMCB showed a porous andfibrous structure, with a high BET specific surface area of 248 m2·g - 1 and a pore volume of 0. 37 m3·g - 1 . It had a much higherphosphate adsorption capacity than pure chitosan bead. Langmuir model was more suitable for describing the adsorption behavior andthe maximal adsorption capacity was as high as 13. 3 mg·g - 1 at pH 7. 0 . The kinetic data were well fitted by the pseudo second ordermodel. The phosphate adsorption on FMCB was pH-dependent and decreased with increasing solution pH. Coexisting Ca2 + and Mg2 +enhanced slightly the adsorption of phosphate, while the coexisting anions hindered the phosphate adsorption in the order of SiO2 - 3 >CO2 -3 > SO2 - 4 ≥ Cl - . The phosphate-loaded FMCB could be effectively regenerated using NaOH solution and repeatedly used. Incolumn tests, about 800 bed volumes of simulated groundwater containing 3 mg·L - 1 were treated before breakthrough ( phosphateconcentration in effluent reached 0. 5 mg·L - 1 ) . |
收录类别 | CSCD |
语种 | 中文 |
CSCD记录号 | CSCD:5862740 |
源URL | [http://ir.yic.ac.cn/handle/133337/22091] ![]() |
专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 烟台海岸带研究所_污染过程与控制实验室 |
作者单位 | 1.中日友好环境保护中心 2.中国科学院烟台海岸带研究所海岸带环境过程与生态修复重点实验室 3.西安工程大学环境与化学工程学院 |
推荐引用方式 GB/T 7714 | 付军,范芳,李海宁,等. 铁锰复合氧化物/壳聚糖珠:一种环境友好型除磷吸附剂[J]. 环境科学,2016,37(11):25-29+35. |
APA | 付军,范芳,李海宁,&张高生.(2016).铁锰复合氧化物/壳聚糖珠:一种环境友好型除磷吸附剂.环境科学,37(11),25-29+35. |
MLA | 付军,et al."铁锰复合氧化物/壳聚糖珠:一种环境友好型除磷吸附剂".环境科学 37.11(2016):25-29+35. |
入库方式: OAI收割
来源:烟台海岸带研究所
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