Efficient integrated cleaning system and method for petroleum hydrocarbon organic contaminated soil

A technology for organically polluted and polluted soil, applied in the field of soil remediation, can solve the problems of low layout efficiency, complex equipment structure, large floor area, etc., and achieve the effect of complete restoration, reduced installation and operation costs, and compact floor space
CN112058889BActive Publication Date: 2022-04-19BCEG ENVIRONMENTAL REMEDIATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BCEG ENVIRONMENTAL REMEDIATION CO LTD
Publication Date
2022-04-19

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Abstract

An efficient integrated cleaning system and method for petroleum hydrocarbon organically polluted soil, the system sequentially includes a contaminated soil feeding unit, a pretreatment crushing unit, a microbubble entrainment cleaning unit, a discharge dehydration unit, a sewage treatment unit, and instruments and electrical control unit. The microbubble entrainment cleaning unit sequentially includes the first cleaning section and the third cleaning section; the first cleaning section includes a No. And No. ① contaminated soil turnover window located at the end of the first cleaning section; the third cleaning section includes No. ③ spiral scrubbing machine running through the third cleaning section, No. The end of the cleaning section is provided with a material discharge port, which is connected to the discharge dehydration unit. The invention improves the work efficiency of soil restoration and reduces the construction and operation costs of soil restoration. It can be widely used in the cleaning and treatment of polluted soil.
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Description

technical field

[0001] The invention relates to the technical field of soil remediation, in particular to a cleaning system for petroleum hydrocarbon organically polluted soil and an application method thereof. Background technique

[0002] Soil washing technology is an important restoration technology in soil restoration. Soil washing removes pollutants adsorbed on and within soil particles.

[0003] In the field of soil remediation, the soil particle size is usually classified, and the specific classification is as follows: boulder particle size > 256mm; medium gravel particle size: 64-256mm; fine gravel particle size: 2-64mm; sand: 1 / 16-2mm ; Silt particle size: 1 / 516 ~ 1 / 16mm; Clay particle size: less than 1 / 512mm.

[0004] Soil washing is an in situ and ex situ remediation technique that uses clean water (usually with some chemicals added) or solvents to remove pollutants from excavated soil. Clean water mainly plays two roles in the leaching process: 1. Separatin...

Claims

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