Remedying system for non-hazardous waste buildings and remedying method

A technology for repairing systems and buildings, which is applied in the field of leaching and repairing engineering polluted buildings, which can solve the problems of lack of efficient repair methods, etc., and achieve the effects of efficient operation, low processing cost, and reduced processing cost

Inactive Publication Date: 2018-08-17
BCEG ENVIRONMENTAL REMEDIATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that lacks an engineerable and efficient r

Method used

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  • Remedying system for non-hazardous waste buildings and remedying method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] Example 1

[0051] like figure 1 As shown, the restoration method for non-hazardous waste polluted buildings involved in this embodiment includes the following steps:

[0052] 1) Demolition and crushing: Demolition of polluted buildings and crushing;

[0053] 2) Feeding: Feed the crushed material in step 1) through a vibrating screen

[0054] 3) Sludge: make the material fed in step 2) spray the high-pressure cleaning liquid in the drum mud making machine, and discharge the slurried material after uniform dispersion

[0055] 4) Multi-stage screening: in step 3) the processed material is screened by multi-stage weight reduction; 5) mud dehydration and mud cake stabilization: the material treated by step 4) weight reduction treatment is added with medicine to obtain a mixed liquid, and then The mud is pumped into the plate and frame filter press through the mud pump to dewater the mud; after the mud and water are separated, the mud cake is further stabilized to complet...

Example Embodiment

[0068] Example 2

[0069] like Figure 1-2 As shown, this embodiment provides a repair system for non-hazardous waste polluted buildings, which includes the following modules in sequence:

[0070] A crushing module for crushing and dismantling polluted buildings;

[0071] A feeding module, including a vibrating screen for feeding and provided with a high-pressure spray system, and a material conveying belt, the vibrating screen is used for screening the polluted buildings treated by the crushing module;

[0072] A drum mud making module, including a drum mud making machine 4 with a high-pressure spray system;

[0073] Multi-stage screening module for screening the mud discharged from the drum mud making module;

[0074] Mud dehydration and mud cake stabilization module, including stabilization integrated equipment and plate and frame filter press to realize the separation of mud and water, after the separation of mud and water, the mud cake is further stabilized to complete...

Example Embodiment

[0084] Example 3

[0085] Taking the polluted buildings in a historically polluted site of a chemical factory in western China as the treatment target, the main pollutant is hexavalent chromium. The part of the polluted building which is identified as non-hazardous waste shall be treated by the leaching technology of the present invention. The rinsing process uses clean water or reducing agents as the eluent. The rinsing system is based on the basic design concept of "reduction" and "concentration and final disposal", which realizes the pollution-containing fine particles and stones, gravel, etc. in the feed material. Effective separation of coarse particles, and elution, transfer and concentration of contaminants on the surface of coarse particles into the mud cake after pressure filtration.

[0086] 1. Demolition and crushing: Demolish polluted buildings and use crushers for crushing. After crushing, the particle size of the building is less than 100mm.

[0087] 2. Feedin...

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Abstract

The invention discloses a remedying system for non-hazardous waste buildings and a remedying method, and belongs to the technical field of remediation of contaminated sites. The remedying system for the non-hazardous waste buildings provided by the invention sequentially comprises the following modules: a crushing module for crushing and processing dismantled contaminated buildings, a feeding module including a material conveyor belt and a vibrating screen which is used for feeding and provided with a high-pressure spraying system, a roller mud-making module including a roller mud-making machine provided with the high-pressure spraying system, a multi-stage screening module for screening mud slurry materials discharged by the roller mud-making module, and a mud slurry dehydration and mud cake stabilizing module which is used for stabilizing integrated equipment and a plate and frame filter press to realize separation of mud and water, wherein the vibrating screen is used for screeningthe contaminated buildings processed by the crushing module, and after mud cakes are concentrated, stabilizing treatment is further adopted so as to realize non-hazardous treatment. According to the remedying system disclosed by the invention, remediation engineering on the contaminated buildings can be realized.

Description

technical field [0001] The invention belongs to the technical field of remediation of polluted sites, and relates to an engineered method for rinsing and repairing polluted buildings. Background technique [0002] A large amount of "three wastes" are produced in the production process of heavy metal smelting and processing, mining, chemical manufacturing and other industries. Improper treatment or long-term accumulation will cause heavy metal pollution. serious threat. With the acceleration of my country's urbanization process and the adjustment of industrial structure, a large number of polluted sites are left behind due to the relocation, renovation or closure of urban industrial enterprises. The buildings, structures, soil and groundwater in the leftover sites are polluted, which will not only affect the surrounding environment and the health of residents. It poses a serious threat and restricts the safe reuse of land resources. It is urgent to carry out the restoration a...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00C02F9/02C02F11/12
Inventor 孟祥琪李静文杨远强孙尧杨松霖
Owner BCEG ENVIRONMENTAL REMEDIATION CO LTD
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