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Device and method for repairing river and lake bottom sediments

A technology to be repaired for substrates, applied in chemical instruments and methods, polluted waterways/lakes/ponds/rivers treatment, biological sludge treatment, etc., can solve problems such as lack of connection, achieve small impact, lift and remove Efficiency, efficient extraction effect

Active Publication Date: 2019-07-26
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a river and lake bottom restoration device and method to solve the problems in the prior art that there is insufficient connection between the units of the restoration method combined process, and it is still difficult for aquatic plants to grow healthily in the restored river and lake

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  • Device and method for repairing river and lake bottom sediments
  • Device and method for repairing river and lake bottom sediments
  • Device and method for repairing river and lake bottom sediments

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Embodiment Construction

[0040] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such as first and second etc. are used only to distinguish one entity or operation from another with...

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Abstract

The invention relates to the technical field of environmental engineering, in particular to a device and a method for repairing river and lake bottom sediments. The device for repairing the river andlake bottom sediments comprises a cover, a gas impact device, an aeration device, a gas supply device, corresponding gas pipelines, a sludge pump and a liquid pipeline. The gas supply device providesair sources to the gas impact device and the aeration device. An opening of the cover is arranged vertically downwards. The gas impact device and the aeration device are located in the cover. The gassupply device is located outside the cover, and provides gases to the gas impact device and the aeration device through the corresponding gas pipelines. The sludge pump is located outside the cover. Mud-water mixtures of the river and lake bottom sediments in the cover are drawn by the liquid pipeline for heterotopic treatment. The device and the method have the advantages that the in-situ remediation of the river and lake bottom sediments can be realized, restoration of habitat conditions of the river and lake bottom sediments is combined with restoration of aquatic plants, the restoration ofthe aquatic plants is promoted through change of redox conditions of bottom mud on a surface layer, and accordingly, a stable river and lake ecosystem is formed.

Description

technical field [0001] The invention relates to the technical field of ecological engineering, in particular to a river and lake bottom quality restoration device and method. Background technique [0002] The substrate is an important part of the river and lake ecosystem, and healthy substrate conditions are the prerequisite for the restoration of the river and lake ecosystem. Currently, the technologies for the restoration of river and lake polluted substrate can be divided into physical methods, chemical methods, and biological methods according to the restoration mechanism. method and combination method. Physical methods include aeration and re-oxygenation, dredging of bottom mud environmental protection, covering (or masking), etc., such as the disclosed technology of "a repair method based on in-situ covering of river bottom mud" (CN 108947155 A) to select covering materials (fine gravel 30%-80%, bentonite 20%-50%, organic polymer 2%-10%) cover the highly polluted surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/02
CPCC02F11/00C02F11/02C02F2103/007Y02A20/402
Inventor 储昭升李国宏叶碧碧
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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