| 不同基质去除水中氮、磷的作用机理及效应 |
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| 引用本文： | 张敏,郭彬,傅庆林,景金富,李华,丁能飞,刘琛,林义成.不同基质去除水中氮、磷的作用机理及效应[J].水土保持学报,2011,25(3):63-67. |
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| 作者姓名： | 张敏 郭彬 傅庆林 景金富 李华 丁能飞 刘琛 林义成 |
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| 作者单位： | 1. 浙江农林大学,杭州311300;浙江省农业科学院,环境资源与土壤肥料研究所,杭州310021
2. 浙江省农业科学院,环境资源与土壤肥料研究所,杭州310021 |
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| 基金项目： | 水体污染控制与治理科技重大专项(2008ZX07101-006); 公益性行业(农业)科研专项经费项目(200903001); 浙江省重大科技攻关项目(2005C12025); 浙江省科技计划面上项目(2009C33121) |
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| 摘 要： | 对粉煤灰、矾土、活性炭、蛭石和火烧石5种基质的元素含量和表面化学性状进行了研究,并比较了这5种基质对P和NH4+-N的吸附性能。结果表明:粉煤灰呈碱性,具有较高的Fe、Ca含量,胶体氧化铁和水溶性Ca含量也最高,矾土呈酸性,Al含量和游离氧化铝含量最高,蛭石和火烧石呈中性,其中蛭石含有21.6%的Mg,活性炭比表面积最大。Langmuir等温吸附曲线方程能够对上述基质的P、NH4+-N吸附过程进行了很好的拟合,其中P理论饱和吸附量由大到小依次为粉煤灰>矾土>火烧石>活性炭>蛭石,NH4+-N饱和吸附量由大到小依次为蛭石>粉煤灰>火烧石>活性炭>矾土。双元素(P和NH4+-N)溶液下,基质对P或NH4+-N的理论饱和吸附量较单元素(P或NH4+-N)溶液下要低。在5种基质中,粉煤灰对P、NH4+-N的综合吸附能力较强,推荐其作为水体N、P污染修复的首选基质。
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| 关 键 词： | 基质 磷 铵态氮 Langmuir等温吸附曲线 |
Comparison of Removal Efficiency of Phosphorus and Ammonium in Solutions by Five Substrates |
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| ZHANG Min,GUO Bin,FU Qing-lin,JING Jin-fu,LI Hu,DING Neng-fei,LIU Chen,LIN Yi-cheng.Comparison of Removal Efficiency of Phosphorus and Ammonium in Solutions by Five Substrates[J].Journal of Soil and Water Conservation,2011,25(3):63-67. |
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| Authors: | ZHANG Min GUO Bin FU Qing-lin JING Jin-fu LI Hu DING Neng-fei LIU Chen LIN Yi-cheng |
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| Institution: | ZHANG Min1,2,GUO Bin2,FU Qing-lin2,JING Jin-fu2,LI Hua2,DING Neng-fei2,LIU Chen2,LIN Yi-cheng2(1.Zhejiang Forestry and Agricultural Universitys,Hangzhou 311300,2.Institute of Environment,Resource,Soil and Fertilizer,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021) |
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| Abstract: | Both phosphorus(P) and ammonium(NH+4-N) adsorption capacities of fly ash,alumina,activated carbon,burnt stone and vermiculite with physical and chemical characteristics were examined for the potential use as substrate in removing P and N in polluted water.Results showed that: Among the 5 substrates,fly ash was alkaline with the highest Fe,Ca and active Fe,Ca contents,while alumina was acid with highest Al and active Al contents.There was 21.6% of Mg found in vermiculite.Activated carbon had the largest spec... |
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| Keywords: | substrate P NH 4-N Langmuir adsorption isotherms |
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