| 粤西徐闻九亩硅藻土对水体中Zn2+的吸附实验研究 |
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| 引用本文： | 杨志军,葛云,韦彩慧,彭明生,苏育炜,李红中,周永章.粤西徐闻九亩硅藻土对水体中Zn2+的吸附实验研究[J].矿产与地质,2007,21(2):210-213. |
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| 作者姓名： | 杨志军 葛云 韦彩慧 彭明生 苏育炜 李红中 周永章 |
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| 作者单位： | 1. 中山大学地球科学系,广东,广州,510275;中山大学地球环境与地球资源研究中心,广东,广州,510275
2. 中山大学地球科学系,广东,广州,510275 |
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| 基金项目： | 广东省科技厅科技计划;国家自然科学基金;中山大学本科科研项目 |
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| 摘 要： | 粤西徐闻九亩硅藻土表面多孔,除含有蛋白石外,还含有少量的蒙脱石等粘土矿物;其对水体中的Zn^2＋具有修复能力,且对Zn^2＋的吸附效率较高;宜在弱酸性-中性的pH值条件下修复Zn^2＋;在低Zn^2＋浓度下,硅藻土可以有效地去除Zn^2＋,而对硅藻土进行改性后将有利于对较高浓度的Zn^2＋进行修复;评价硅藻土对水体中Zn^2＋的修复效果应该综合考虑去除率与负载量,在Zn^2＋初始浓度为20mg/L时,徐闻九亩硅藻土吸附剂的用量应以10g/L为宜。
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| 关 键 词： | 硅藻土 Zn2 的吸附 实验研究 九亩 徐闻 粤西 |
| 文章编号： | 1001-5663（2007）02-0210-04 |
| 收稿时间： | 2006-10-21 |
| 修稿时间： | 2006-10-21 |
Experiment study of absorbing Zn2+ in water by diatomite from Jiumu,Xuwen Town,western Guangdong |
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| YANG Zhi-jun,GE Yun,WEI Cai-hui,PENG Ming-sheng,SU Yue-wei,LI Hong-zhong,ZHOU Yong-zhang.Experiment study of absorbing Zn2+ in water by diatomite from Jiumu,Xuwen Town,western Guangdong[J].Mineral Resources and Geology,2007,21(2):210-213. |
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| Authors: | YANG Zhi-jun GE Yun WEI Cai-hui PENG Ming-sheng SU Yue-wei LI Hong-zhong ZHOU Yong-zhang |
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| Institution: | 1. Geo-science Dep. Of SUN YAT-SEN University, Guangzhou, Guangdong 510275,China ; 2. Earth Environment and Resources Research Center, SUN YAT-SEN University, Guangzhou , Guangdong 510275, China |
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| Abstract: | The diatomite mineral in Xuwen and Jiumo of western Guangdong is porous on the surface.It contains less clay mineral as montomorillonite etc.besides opal.It is able to restore Zn2+ in water and effectively absorb Zn2+.It is fit for restoring Zn2+ in weak acid and neutral pH condition.Diatomite can eliminate Zn2+ effectively when Zn2+ concentration is lower,while highly concentrated Zn2+ can be restored after diatomite being modified;The removing rate and loading quantity should be considered comprehensively while evaluating the diatomite's effect of restoring Zn2+ in water.When the initial concentration of Zn2+ is 20mg/L,the suitable dosage of diatomite sorbent in Xuwen and Jiumu should be 10g/L. |
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| Keywords: | diatomite adsorption Zn2+ experiment study Jiumu Xuwen western Guandang |
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