Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Plant repair method of soil polluted by phenanthrene, pyrene or pentachlorophenol

A kind of technology of pentachlorophenol and polluted soil, applied in the field of soil pollution control

Active Publication Date: 2010-02-17
NANJING UNIV
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For the problems existing in the restoration of phenanthrene, pyrene or pentachlorophenol-contaminated soil, the present invention provides a phytoremediation method for soil contaminated by phenanthrene, pyrene or pentachlorophenol, by inserting weeping willow or planting deep-rooted horseradish for application It is used in the remediation of soil contaminated by organic matter phenanthrene and pyrene or pentachlorophenol to achieve low-cost, efficient and safer soil remediation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Plant repair method of soil polluted by phenanthrene, pyrene or pentachlorophenol
  • Plant repair method of soil polluted by phenanthrene, pyrene or pentachlorophenol
  • Plant repair method of soil polluted by phenanthrene, pyrene or pentachlorophenol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In situ phytoremediation of polycyclic aromatic hydrocarbon phenanthrene-contaminated soil

[0030] The repair test site is located in a town in Jiangning District, Nanjing City. During the test, 200m was dug out first 2 For the soil in the rectangular plot, build a test pond and a collection system for infiltration water, then backfill the soil, backfill in layers when backfilling the topsoil, and sprinkle the solution of polycyclic aromatic hydrocarbon phenanthrene evenly in layers. After mixing evenly, level the land and break down the large pieces of soil on the surface. Then use PVC partitions to separate into several 1×1m 2 The square plot, the clapboard is buried at a depth of 25cm. Every 3 adjacent cells is a group of parallel. The planting plant was Weeping Willow J1011. When the planting density was 5 mg phenanthrene / kg soil, 5 plants were planted per square meter (100 plants / 100 mg phenanthrene / kg soil). The planting time was 3 days after the pollution tr...

Embodiment 2

[0033] In situ phytoremediation of polycyclic aromatic hydrocarbon pyrene-contaminated soil

[0034] Its basic steps are the same as embodiment 1, except that when the planting density of weeping willow is 50mg pyrene / kg soil, every square meter is planted 5 strains (500 strains / every 100mg pyrene / kg soil), and the treatment group has: soil control group, weeping willow group and horseradish group, denoted as CK, W and HR, respectively. Figure 4 The time-dependent changes of pyrene concentration in soil under Weeping willow planting treatments are given. It can be seen from the figure that after the treatment started, the decrease of the pyrene concentration in the soil under the W treatment was significantly different from that of the CK control group (p Figure 5 It can be seen that the deep-rooted plant horseradish is a perennial cruciferous vegetatively propagated deep-rooted nodule plant, and its planting method is to bury the fleshy roots separately, and the planting den...

Embodiment 3

[0036] In situ phytoremediation of pentachlorophenol-contaminated soil

[0037] Its basic steps are the same as Example 1, except that the planting density of weeping willow is when 1mg PCP / kg soil is planted 5 strains (10 strains / every 100mg PCP / kg soil) treatment groups in every square meter: soil control group, Weeping willow group and horseradish group were recorded as CK, W and HR, respectively. For the horseradish group, depending on the amount of horseradish added, 50, 100 or 200g / m 2 The difference is recorded as HR50, HR100 and HR200 respectively.

[0038] Image 6 The changes of PCP concentration in soil from the time of treatment under the weeping willow planting are given. It can be seen from the figure that from the beginning of the treatment, the planting of weeping willow promoted the decrease of the PCP concentration in the soil, and the decrease of the PCP concentration in the soil under the W treatment was significantly different from that of the CK contro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Densityaaaaaaaaaa
Densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a plant repair method of soil polluted by phenanthrene, pyrene or pentachlorophenol, belonging to the treatment field of soil environment pollution and comprising the following steps: (A) measuring the content of the phenanthrene, pyrene or pentachlorophenol in soil; and (B) implanting a golden weeping willow or planting deep-rootedness plant horse radish or implanting golden weeping willow and planting deep-rootedness plant horse radish at the same time. The willow in the step B is a golden weeping willow J1011(Salix*jiangsuensis CL.1011), and 4-6 golden weeping willows or deep-rootedness plant horse radishes are planted when the content of the phenanthrene, the pyrene and the pentachlorophenol 5, 50 or 1mg / kg per square meter of soil. The invention can stably remove organics in the soil well, conforms with the principle of taking actions that suit local circumstances and effectively applies natural force; the golden weeping willow and the deep-rootedness plant horse radish are used in combination, enabling pollutants to be concentrated intensively, therefore, the treatment effect is better than the sum of the effects of respective single treatment.

Description

Technical field [0001] The present invention relates to the field of soil pollution control in environmental protection, and more specifically to a phytoremediation method for soil contaminated by phenanthrene, pyrene or pentachlorophenol. Background technique [0002] Soil is an important natural resource for human survival and development and the basis for the existence of the entire terrestrial ecosystem. It is very important for the sustainable development of agriculture and human survival. According to the 1990 report of UNEP (United Nations Environment Program) (IRRTC), approximately 300-400 million tons of organic matter enter the environment every year, most of which enters the soil environment. The problem of soil pollution in my country is also very serious, posing severe challenges to the sustainable use of arable land resources and the security of food production. For example, organochlorine pesticides have been banned for nearly 20 years, and the amount of resi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B09C1/00A01G1/00
Inventor 郭红岩李佳华孙媛媛王晓蓉季荣尹颖
Owner NANJING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com