污泥基陶土对水中Pb2+、Cd2+、Ni2+、Cr3+离子的吸附性能研究
PDF下载 (488)黄怡然,王金辉,涂凌波,王冰洁,朱建林 *.污泥基陶土对水中Pb2+、Cd2+、Ni2+、Cr3+离子的吸附性能研究[J].宁波大学学报(理工版),2017,30(2):100-105.DOI:
HUANG Yi-ran,WANG Jin-hui,TU Ling-bo,WANG Bing-jie,ZHU Jian-lin *.Adsorption of Pb2+, Cd2+, Ni2+ and Cr3+ by municipal sludge based pottery clay in aqueous solution[J].Journal of Ningbo University(Natural Science & Engineering Edition),2017,30(2):100-105.DOI:
| Title: | Adsorption of Pb2+, Cd2+, Ni2+ and Cr3+ by municipal sludge based pottery clay in aqueous solution |
| 作者: | 黄怡然, 王金辉, 涂凌波, 王冰洁, 朱建林 * |
| Author(s): | HUANG Yi-ran, WANG Jin-hui, TU Ling-bo, WANG Bing-jie, ZHU Jian-lin * |
| 关键词: | 污泥; 陶土; 加拿大一枝黄花; 重金属; 吸附 |
| Keywords: | municipal sludge; pottery clay; Solidago canadensis L.; heavy metals; adsorption |
| 分类号: | X703 |
| 文献标识码: | A |
| 摘要: | 利用污水厂污泥、河道淤泥、粉煤灰和加拿大一枝黄花等废弃物为主要原料, 制备出一种污泥基陶土(SBPC), 研究了其对Pb2+、Cd2+、Ni2+、Cr3+ 4种重金属混合溶液的吸附效果, 并以Cr3+为例研究其吸附机理. 结果表明, 在低浓度重金属混合溶液中, SBPC对Cr、Pb的去除率可达90%以上, 而对Cd、Ni的去除率低于15%; 在单一重金属铬溶液中, SBPC对Cr3+的最大吸附量为4.32mg?g-1, 其吸附等温线符合Freundlich模型; 吸附机理主要包括表面沉降、阳离子置换、取代反应、Cr3+水解以及静电吸附. |
| Abstract: | By employing municipal sludge, river silt, coal soots and Solidago canadensis L. as raw materials, a new kind of sludge based pottery clay (SBPC) is prepared, and the adsorption properties of SBPC on Pb2+,Cd2+,Ni2+ and Cr3+ in aqueous solution are investigated. The results show that the removal efficiency on Pb and Cd can be achieved by more than 90%, while that on Cd and Ni is under 15% in the mixed heavy metals solution. The maximum adsorption capacity on Cr3+ is 4.32 mg?g-1 in the single solution of Cr3+, and the adsorption isotherm on Cr3+ is consistent with the Freundlich model. The sorption mechanism mainly involves surface precipitation, cation exchange and substitution reaction, Cr3+ hydrolysis and electrostatic adsorption. |
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| 备注/Memo: | 收稿日期: 2016－09－13. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 国家水体污染控制与治理科技重大专项（2014ZX07305001-007）. 第一作者: 黄怡然（1992－）, 女, 福建武夷山人, 在读硕士研究生, 主要研究方向: 水污染控制. E-mail: hyr92_zjgs@163.com *通信作者: 朱建林（1963－）, 男, 湖南常德人, 教授, 主要研究方向: 水污染控制等. E-mail: zhujianlin@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
