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Remove of heavy metals(Cu2+, Pb2+, Zn2+ and Cd2+) in water through modified diatomite

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Abstract

At present, heavy metal pollution has become a major environmental problem, influencing the survival of human and other creatures. Developing heavy metal ion adsorbents, which are environment friendly, of low cost and good performance is one of the effective means to solve heavy metal pollution. Rich low-grade diatomite mineral, as raw material, was modified with calcium carbonate to improve the adsorption properties of diatomite for heavy metal ions. The effects of dosage(m), pH, adsorbing time(t), temperature(T) and concentration of adsorbent(c) on the removal rate of heavy metal ions(Cu2+, Pb2+, Zn2+ and Cd2+) were studied. The results show that under the suitable conditions, T=15 °C, c=1.5 mmol/L, m=10 g/L, t=60 min, in a weak acid environment, the removal effect of the four kinds of metal ions by modified diatomite is the best.

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Authors and Affiliations

  1. Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130012, P. R. China

    Jia Liu, Hong-liang Wang, Chun-xin Lü, Han-fei Liu, Zhi-xin Guo & Chun-li Kang

Authors
  1. Jia Liu
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  2. Hong-liang Wang
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  3. Chun-xin Lü
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  4. Han-fei Liu
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  5. Zhi-xin Guo
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  6. Chun-li Kang
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Corresponding author

Correspondence to Chun-li Kang.

Additional information

Supported by the Scientific Research Project Fund of Environmental Protection Bureau of Jilin Province, China(No.2007-13).

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Liu, J., Wang, Hl., Lü, Cx. et al. Remove of heavy metals(Cu2+, Pb2+, Zn2+ and Cd2+) in water through modified diatomite. Chem. Res. Chin. Univ. 29, 445–448 (2013). https://doi.org/10.1007/s40242-013-2504-1

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  • DOI: https://doi.org/10.1007/s40242-013-2504-1

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