| 水葫芦重金属吸附性能再利用研究 |
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| 引用本文： | 王洪,李志鹏,王超洋,吴海波,靳向煜.水葫芦重金属吸附性能再利用研究[J].环境科学与技术,2012,35(7):33-35,121. |
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| 作者姓名： | 王洪 李志鹏 王超洋 吴海波 靳向煜 |
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| 作者单位： | 东华大学产业用纺织品国家工程研究中心,上海,201620 |
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| 摘 要： | 文章将从河道中打捞的水葫芦分别进行干燥、颗粒化及纤维提取处理,然后研究其对Cu2+的吸附特性,并进一步研究了颗粒状水葫芦在不同浓度Cu2+溶液和不同pH值条件下的Cu2+吸附特性。结果发现水葫芦经过颗粒化和纤维提取处理后,其最大Cu2+吸附量基本保持不变,但吸附速率稍有提高。水葫芦颗粒袋对Cu2+溶液的吸附性能基本不受溶液pH值的影响,对痕量Cu2+溶液具有较好的吸附效果,基本达到国家污水综合排放标准规定的Cu2+含量的三级标准,是一种可以推广的再利用水葫芦重金属离子吸附性能的实用方法。
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| 关 键 词： | 水葫芦 重金属 吸附 痕量 |
Heavy Metal Adsorption Properties of Eichhornia crassipes |
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| WANG Hong
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LI Zhi-peng
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WANG Chao-yang
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WU Hai-bo
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JIN Xiang-yu.Heavy Metal Adsorption Properties of Eichhornia crassipes[J].Environmental Science and Technology,2012,35(7):33-35,121. |
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| Authors: | WANG Hong LI Zhi-peng WANG Chao-yang WU Hai-bo JIN Xiang-yu |
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| Institution: | (Engineering Research Centre of Technical Textile of Ministry of Education,Donghua University,Shanghai 201620,China) |
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| Abstract: | Live Eichhornia crassipes collected from a river were treated by drying,granulating and fibering respectively,and Cu2 + adsorption properties were studied as well.Adsorption properties of Eichhornia crassipes pellets were investigated under different pH levels and initial Cu2 + concentrations.It was found that Eichhornia crassipes samples all kept similar maximal Cu2 + capacity while Eichhornia crassipes pellet and fiber showed faster Cu2 + adsorption rate.The maximal Cu2 + adsorption capacity of Eichhornia crassipes bag did not change obviously with pH levels and it showed excellent adsorption properties of trace Cu2 + solution,which satisfied Grade Ⅲ of Cu2 + content in national discharge standard.It is practical to reuse as a heavy metal adsorption material by granulating and bagging in a kind of nonwoven fabrics. |
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| Keywords: | Eichhornia crassipes heavy metal adsorption trace |
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