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Plant mixed cultivation remediation method for phthalate-polycyclic aromatic hydrocarbon-heavy metal polluted soil

A technology for polycyclic aromatic hydrocarbons and polluted soil, applied in the field of soil remediation, can solve the problems of lack of research on soil remediation and single remediation, and achieve the effects of simple and convenient operation, rapid soil restoration, and rapid restoration.

Inactive Publication Date: 2018-02-23
HUBEI UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing technology can only remediate farmland soil polluted by a single phthalate or low concentration of heavy metals and phthalates, and there is still a lack of research on the remediation of phthalates-PAHs-heavy metals compound pollution.

Method used

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  • Plant mixed cultivation remediation method for phthalate-polycyclic aromatic hydrocarbon-heavy metal polluted soil
  • Plant mixed cultivation remediation method for phthalate-polycyclic aromatic hydrocarbon-heavy metal polluted soil
  • Plant mixed cultivation remediation method for phthalate-polycyclic aromatic hydrocarbon-heavy metal polluted soil

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Embodiment 1

[0035] Embodiment 1 provides a kind of phytoremediation method of phthalate-polycyclic aromatic hydrocarbon-heavy metal polluted soil, and its specific steps are as follows:

[0036] S1. Purchasing alfalfa seeds and Herba Sedatus seeds from the market, collecting Sedum sedum seedlings in Chun'an, Zhejiang, and then planting and screening them in the laboratory to obtain cuttings. A typical phthalate-polycyclic aromatic hydrocarbon-heavy metal (Cu, Cd) polluted farmland soil was selected. The test soil was paddy soil, the soil-forming parent material was marine sediment, and the system was classified as iron-polyhydroponic man-made soil. The background concentration of the phthalate target DnBP in the test soil was 0.386mg / kg, the total amount of PAHs was about 0.604mg / kg, the total amount of Cu and Cd were 114.0mg / kg and 0.52mg / kg respectively, and the pH value of the soil is 5.56, and the bulk density is 1.08g / cm 3 , the organic matter content is 36.5g / kg, and the total nitr...

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Abstract

The invention provides a plant mixed cultivation remediation method for phthalate-polycyclic aromatic hydrocarbon-heavy metal polluted soil, and belongs to the technical field of soil remediation. Theplant mixed cultivation remediation method for the phthalate-polycyclic aromatic hydrocarbon-heavy metal polluted soil comprises the step of planting alfalfa, elsholtzia splendens and sedum plumbizincicola on contaminated soil through mixed cultivation. The plant mixed cultivation remediation method for the phthalate-polycyclic aromatic hydrocarbon-heavy metal polluted soil, provided by the invention, is simple and convenient to operate, can treat various pollutants in the soil by using the plants planted through mixed cultivation, and has the advantages of ecological environmental protectionand rapid soil remediation.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a phytomixed remediation method of phthalate-polycyclic aromatic hydrocarbons-heavy metal contaminated soil. Background technique [0002] Phthalate esters (PAEs), also known as phthalates, are a general term for esters formed by phthalic acid. They are mainly used as plastic modification additives. They are a class of carcinogenic, mutagenic, teratogenic, Reproductive toxicity, neurotoxicity, endocrine disrupting environmental hormones. Polycyclic aromatic hydrocarbons (PAHs) are volatile hydrocarbons produced when coal, petroleum, wood, tobacco, organic polymer compounds and other organic substances are incompletely burned. They are highly carcinogenic and can be passed through inhalation or direct skin contact. Carcinogenic to humans, leading to lung cancer and cardiovascular disease, is an important environmental and food pollutant. Heavy metal pollution is also an...

Claims

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Application Information

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IPC IPC(8): B09C1/00
Inventor 马婷婷周炜骆永明
Owner HUBEI UNIV OF ARTS & SCI
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