Dredged mud stock yard in-situ environmental protection and dust prevention method based on microorganism solidification

A solidification and microbial technology, applied in the field of environment and water conservancy construction, can solve the problems of limited dust removal effect, inadaptability to dredged mud yard environment, high construction cost, etc., and achieve manpower saving, simple and convenient construction, and reliable dustproof strength Effect

Inactive Publication Date: 2016-08-31
HOHAI UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these measures have their own application advantages, there are many disadvantages in the application of dredged mud dumps, such as high construction cost, limited dust removal effect, and inadaptability to the environment of dredged mud dumps.

Method used

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  • Dredged mud stock yard in-situ environmental protection and dust prevention method based on microorganism solidification
  • Dredged mud stock yard in-situ environmental protection and dust prevention method based on microorganism solidification
  • Dredged mud stock yard in-situ environmental protection and dust prevention method based on microorganism solidification

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0018] An in-situ environment-friendly and dust-proof method for dredging mud stockpiles based on microbial solidification. Microbial solidification technology is used to spray microbial solidification solution on the surface of dredging mud 1 to solidify the surface of dredging mud 1 to form a dustproof shell 2. The specific structure is as follows figure 1 shown.

[0019] The microbial solidification solution includes bacterial solution 3 and treatment solution 4; bacterial solution 3 is bacillus concentrated solution and nutrient solution (nutrient solution: 20g / L Y-E yeast extract, 10g / L ammonium chloride, 10μM nickel chloride, pH8.5 left and right), the treatment solution 4 includes urea a...

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Abstract

The invention discloses a dredged mud stock yard in-situ environmental protection and dust prevention method based on microorganism solidification. A microorganism solidification solution is sprayed on a dredged mud surface to solidify the dredged mud surface and generate a dust prevention shell. The invention utilizes microbial mineralization to produce inorganic compounds to make soil harden, and the dust prevention shell forms on the soil surface, biomineralization refers to a microbial metabolism process produced by specific microorganisms under specific environment, is a natural phenomenon, does not produce toxic and harmful substances, and has strong self-adaptability to the construction environment. Microbial bacteria utilize the surrounding urea and other ammonia agents and calcium ion sources to rapidly precipitate calcium carbonate with good gelation properties in soil voids. The process has the characteristics of controllable generation speed, environment-friendly gel strength, and saving of a lot of engineering investment.

Description

technical field [0001] The invention relates to an in-situ environment-friendly and dust-proof method for dredging mud storage yards based on microbial solidification, and belongs to the technical fields of environment and water conservancy construction. Background technique [0002] The dust control of dredged mud yards is an important link that needs to be dealt with in dredging projects such as rivers, harbor basins, and reservoirs. It plays a pivotal role in ensuring the ecological environment and sanitary conditions of the project site. In the current dredging project, there is a problem of insufficient or zero treatment for dust prevention. In addition, the terrain near the storage yard is wide and the wind is strong, so dust often occurs, which seriously affects the industrial and agricultural life around the construction site. . At present, there are many dust prevention technologies in the project: spraying dust suppressant, spraying water, covering dust net, wind ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B1/00
CPCB09B1/004
Inventor 谭慧明李相志何稼袁俊俊
Owner HOHAI UNIV
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