Overall method for development and pollution control of brown field

An overall planning method and brownfield technology, applied in soil protection, protective devices, buildings, etc., can solve the problems of large amount of polluted soil and polluted groundwater, delaying the development and utilization of brownfields, and increasing the cost of subsequent land development, etc., to achieve security Habitat safety, saving pollution control costs and construction period, the effect of long construction period

Inactive Publication Date: 2013-09-11
刘梅锡
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems existing in the existing technology are the large amount of polluted soil and polluted groundwater in the brownfield, the large amount of pollution control works, and the long treatment period, so the cost is high
The management fee of some brownfields is close to or even exceeds the transfer fee of land in the same area, which increases the subsequent development cost of the land and delays the development and utilization time of brownfields

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
  • Overall method for development and pollution control of brown field
  • Overall method for development and pollution control of brown field
  • Overall method for development and pollution control of brown field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Surveying a brownfield chromium-contaminated site, covering an area of ​​160 mu, the contaminated soil layer is as deep as -6 meters, the total contaminated soil is 2 million cubic meters, the hexavalent chromium content of the polluted soil is 1500ppm-0.5ppm, and the penetration depth of polluted groundwater is -6 meters , the deepest penetration of polluted groundwater in an area of ​​about 620 square meters is -10 meters. After optimized planning and design, the main building in the plot is 90 meters high, the foundation pit is 7 meters deep, and covers an area of ​​2,780 square meters. The main building is constructed according to the method of excavating the foundation pit, excavating about 20,000 cubic meters of earth and about 45,000 tons of contaminated soil. , After the polluted soil is crushed and crushed by a double-roller machine, 0.05% calcium polysulfide stabilizer is used for each ton of polluted soil, and the dual-shaft forced mixer is used to stabilize t...

Embodiment 2

[0054] Investigate a heavy metal polluted plot, covering an area of ​​2 acres, the deepest contaminated soil layer is 3 meters, the deepest contaminated groundwater seepage is 3 meters, the total contaminated soil is 3800 cubic meters, and the content of cadmium, zinc, arsenic and lead in the soil in the heavily polluted area exceeds the standard , the plot is planned as a commercial and residential building with a building density of 0.4 and a floor area ratio of 5.2.

[0055] The planned height of the building in this plot is 60 meters, the depth of the foundation pit is 5 meters, and it covers an area of ​​600 square meters. According to the method of excavating the foundation pit, about 3,000 cubic meters of earth will be excavated, and about 68,000 tons of contaminated soil will be excavated. After roller crushing and crushing, it passes through a forming machine to make floor tiles, and then is sintered in a high-temperature furnace at 1100 degrees Celsius.

[0056] Bric...

Embodiment 3

[0060] A pesticide chemical factory polluted plot, covering an area of ​​300 mu, the deepest contaminated soil layer is 5 meters, the deepest contaminated groundwater seepage is 5 meters, the total polluted soil reaches 2.5 million cubic meters, and the soil in the heavily polluted area contains arsenic, organic phosphorus and sulfur , hexavalent chromium, lead, zinc, manganese and other mixed pollutants, the land is planned for commercial and residential buildings.

[0061] The land is planned according to the building density of 0.38 and the volume ratio of 3.5. In the heavily polluted area, the main building is designed to be 60 meters high and the foundation pit is 6 meters deep. as follows:

[0062] Contaminated soil treatment method 1: After being rolled and crushed by a double-roller machine, 5% ferrous sulfate is added to the chromium-contaminated soil, stabilized by a double-shaft mixer, aged and formed to make floor tiles, and then processed by high temperature Furna...

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

No PUM Login to view more

Abstract

The invention relates to an overall method for development and pollution control of the brown field. The overall method includes surveying related data of pollution of the brown field, implementing staging processes of pollution control engineering, construction and property operation and the like overall, performing ex-situ control engineering to contaminated soil which is excavated during construction, performing surface control to contaminated soil, which may have bed influence to security of human settlement, of the field which is not required to be excavated during construction, and to a great quantity of contaminated soil and subsurface sewage which are isolated by the safety surface horizon, washing the field by rainfall or water supply during the period of property operation and then treating sewage which permeates into a subsurface sewage disposal tank. In the prior art, the ex-situ control method has the disadvantages of high cost due to large quantity of contaminated soil, and the in-situ control method has the disadvantage of long construction period. As compared with the prior art, the contaminated soil excavation process for the ex-situ control is substituted by the excavation process during the construction, and contaminated soil of the field not required to be excavated is subjected to in-situ remediation by washing through rainfall or water supply. Therefore, the overall method has the advantages of low cost and short construction period.

Description

technical field [0001] The invention relates to the technical field of planning design optimization, process flow merging and overall implementation of brownfield development and pollution control; it relates to the technical field of ex-situ stabilization / immobilization treatment of polluted soil, and in-situ restoration of soil pollution and groundwater pollution. Background technique [0002] Over the years, the pollution caused by economic development all over the world has caused a large amount of land to be polluted. Economic development, urban expansion, and factory relocation have left brownfields polluted by harmful substances in many places. Aiming at the pollution control and restoration of polluted soil and groundwater, many technologies have been developed at home and abroad in recent decades. These include: overall excavation to remove polluted soil for chemical treatment or physical treatment for leaching and detoxification, ectopic anti-seepage and storage tr...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E02D3/12E02D31/00
Inventor 刘梅锡胡科洋刘洋吴科帆贺锦環
Owner 刘梅锡
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap