Permeable reactive barrier system for biological removal of underground water nitrite

A permeable reaction wall and nitrite technology, applied in the field of permeable reaction wall system, can solve the problem of irreplaceability

Pending Publication Date: 2021-05-28
GUANGDONG KAIYUAN ENVIRONMENT TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] Compared with the prior art, the permeable reaction wall system used for the biological removal of nitrite in groundwater, by filling the denitrification slow-release filler in the sleeve, when replenishing or replacing the filler, the sleeve can be directly removed from the available The skeleton of the permeable reaction wall is taken out, and the external installation is restored to its original position after filling, which solves the problem that the traditional permeable reaction wall cannot be replaced and filled, and is easy to operate

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  • Permeable reactive barrier system for biological removal of underground water nitrite
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  • Permeable reactive barrier system for biological removal of underground water nitrite

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Please refer to Figure 1-Figure 2 , the permeable reaction wall system 100 for the biological removal of groundwater nitrite includes a permeable reaction wall framework 10, the permeable reaction wall framework 10 has a reaction zone 11, and several casing pipes are detachably arranged in the reaction zone 11 30 , the side wall of the casing 30 is provided with a number of through holes (not shown in the figure) to communicate with the reaction zone 11 , and the casing 30 is filled...

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Abstract

The invention discloses a permeable reactive barrier system for biological removal of underground water nitrite, and the system comprises a permeable reactive barrier framework; the permeable reactive barrier framework is provided with a reaction zone, a plurality of sleeves are detachably arranged in the reaction zone, the side wall of each sleeve is provided with a plurality of through holes to be communicated with the reaction zone, and the through holes are communicated with the reaction zone; and the sleeve is filled with denitrification slow-release filler. The permeable reactive barrier system is used for repairing underground water polluted by nitrite nitrogen, and has the advantages of being large in water treatment amount, good in effect, stable in effect, simple in process, high in applicability, low in investment, small in occupied area and low in operation cost. The process of groundwater remediation in China is facilitated, and domestic drinking water sources are protected.

Description

technical field [0001] The invention relates to the technical field of groundwater pollution restoration, in particular to a permeable reaction wall system for biological removal of nitrite from groundwater. Background technique [0002] With the continuous development of social economy and industry and agriculture, nitrite pollution of aquifer groundwater has become a common environmental problem in the world. At present, for the pollution of nitrite and nitrite in the groundwater of the aquifer, ex-situ remediation (extraction treatment method) and in-situ remediation technology are mainly used in the world for pollution remediation. Ectopic repair technology is widely used, but there are problems of low treatment efficiency and high treatment cost. Compared with the traditional ex-situ treatment method, the permeable reaction wall technology in the in-situ repair technology saves the extraction process and does not require external power. It has the advantages of good tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F101/16C02F103/06
CPCC02F3/2806C02F2101/166C02F2103/06
Inventor 李火均罗颜荣孙耀进林许燕钟豪杰张佳娜
Owner GUANGDONG KAIYUAN ENVIRONMENT TECH
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