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Leaching restoration engineered apparatus for persistent organic pollutant-contaminated site

An organic pollution and persistent technology, applied in the field of soil remediation, can solve the problems of long leaching time and low processing capacity, and achieve the effect of improving treatment efficiency and shortening leaching time

Inactive Publication Date: 2013-09-11
ZHEJIANG TAOHUAYUAN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the rinsing repair equipment, the rinsing pool only uses a mixer to mix, the rinsing time is long and the whole set of rinsing equipment runs intermittently, and the processing capacity is low

Method used

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  • Leaching restoration engineered apparatus for persistent organic pollutant-contaminated site

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Embodiment Construction

[0014] The ectopic leaching repair equipment for contaminated soil in this embodiment is as follows: figure 1 As shown, it mainly includes wet multistage vibrating screen 1, muddy water storage tank 2, hydrocyclone (8-1~8-2), dosing tank 10, rinsing tank (3-1~3-2), Water washing tank 4, adsorption purification tank 9, inclined plate sedimentation tank (5-1~5-2), box filter press 6 and vehicle frame. The wet vibrating screen 1 has a secondary screen, the primary screen has a pore size of 20 mm, and is used to remove larger stones; the secondary screen has a pore size of 2 mm, and removes coarse sand of 2 to 20 mm, but the pore size of the screen can be adjusted according to Actual choice. The fine soil particle suspension that passes through the wet vibrating screen 1 is sent into the rinsing tank 3-1 by the pump 13-1, stirred and ultrasonically 15 mixed, and at the same time, the dosing barrel 10 adds chemicals to the rinsing tank; the pump 13-2 The mud-water mixture is disc...

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Abstract

The invention discloses a leaching restoration engineered apparatus for a persistent organic pollutant-contaminated site, belonging to the technical field of soil restoration. The apparatus mainly comprises a wet multistage vibrating screen, a muddy water storage tank, a hydraulic cyclone, a reagent adding tank, a leaching tank, a rinsing tank, an adsorption purification tank, a lamella settler, a chamber type filter press and a vehicle frame. According to the invention, contaminated soil is sieved by using the wet multistage vibrating screen to separate stones and grit; then a soil particle with a particle size of 2 mm obtained after sieving enters into the leaching tank, and the hydraulic cyclone is used to separate soil and leacheate; the soil successively passes through the rinsing tank, the lamella settler and the chamber type filter press and is then discharged after reaching the standard; and the leacheate containing pollutants is treated by using the adsorption purification tank and is then reused. The apparatus provided by the invention has the advantages of easy and convenient operation, strong controllability, a wide application scope, good removal effects, great treating capacity and the like; and the whole apparatus is mounted on the vehicle frame, so the apparatus is easy and convenient to move and is applicable to restoration works of contaminated sites.

Description

technical field [0001] The utility model belongs to the field of soil remediation, in particular to soil remediation equipment for polluted sites. Background technique [0002] With the development of the economy and the acceleration of urban construction, the nature of the site changes more frequently. Many industrial enterprises have moved out of urban areas one after another, and the original industrial land has gradually been developed into residential land, school land or public construction land. However, years of industrial and business activities have resulted in severe pollution of the plant's soil and groundwater, which may endanger the health of residents. Therefore, the task of remediation and governance of polluted industrial and enterprise sites is very urgent. [0003] At present, soil remediation methods at home and abroad mainly include physical remediation, chemical remediation and biological remediation, but some methods have disadvantages such as high c...

Claims

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Application Information

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IPC IPC(8): B09C1/08
Inventor 吴振华钟宇驰
Owner ZHEJIANG TAOHUAYUAN ENVIRONMENTAL PROTECTION TECH
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