Remediation method of heavy metal contaminated soil
A remediation method and a technology of polluted soil, which is applied in the field of remediation of contaminated soil, can solve the problems of unsatisfactory remediation effect in the research stage, and achieve the effects of favorable growth, good remediation effect, and improvement of porosity and nutritional status
Inactive Publication Date: 2019-01-18
崔维佳
14 Cites 9 Cited by
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Abstract
The invention discloses a remediation method of heavy metal contaminated soil. The remediation method comprises the following steps that (1) a soil amendment is added into the heavy metal contaminatedsoil and mixed evenly, and the soil remains for 10-15 days; (2) a microbial agent is added into the soil in the step (1) and mixed evenly, and the soil remains for 3-5 days, and (3) bidens pilosa isplanted in the soil in the step (2), after the bidens pilosa absorbs heavy metals, the overground parts of the bidens pilosa are removed, wherein the microbial agent comprises trichoderma and bacillussubtilis with the mass ratio of the trichoderma to the bacillus subtilis being 1 to (0.5-1). The microbial agent is added into the contaminated soil with the soil amendment, so that the better improvement effect of the soil amendment is facilitated; and meanwhile, the toxicity of the heavy metals in the soil is relieved, the supply of nutrients to heavy metal hyperaccumulators is improved and accordingly the remediation efficiency of the hyperaccumulators is improved.
Application Domain
Contaminated soil reclamation
Technology Topic
NutrientContaminated soils +11
Examples
- Experimental program(3)
- Comparison scheme(4)
- Effect test(1)
Example Embodiment
Example Embodiment
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PUM
Property | Measurement | Unit |
The average particle size | 40.0 ~ 60.0 | mesh |
The average particle size | 50.0 | mesh |
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