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Three-phase high-efficiency oxygen supplementation constructed wetland system

A constructed wetland system and wetland technology, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve the problem of affecting the sewage purification effect and operating life, the organic matter cannot be fully degraded, and the wetland is affected To achieve the effect of strengthening the conversion and removal effect, reducing the risk of organic clogging, and enhancing the efficiency of gas mass transfer

Active Publication Date: 2020-07-31
SHANDONG UNIV
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Problems solved by technology

[0005] 2) There is a phenomenon of clogging in the constructed wetland, which affects its purification effect on sewage and its operating life
In a long-term anoxic environment, the organic matter cannot be fully degraded, and the formed humus and other substances are deposited on the surface of the filler matrix, and form high-viscosity anaerobic sludge together with the polymer on the surface of the microbial film, which can easily cause blockage and affect the operation effect of the wetland

Method used

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  • Three-phase high-efficiency oxygen supplementation constructed wetland system

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[0030] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0031] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0032] As introduced in the background technology, there are low COD and TN removal rates and organic clogging p...

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Abstract

Disclosed in the present invention is a three-phase efficient oxygen supplement artificial wetland system, the structure thereof being divided into upper sub-wetland and lower sub-wetland. The upper sub-wetland and lower sub-wetland communicate with each other by means of a communication pipe. A siphon drainage pipe is provided on a side part of the lower sub-wetland. A permanent solid-liquid-gas three-phase region is formed in the upper sub-wetland. A submerged hypoxic zone is formed where the lower sub-wetland is below a water outlet. The lower sub-wetland above the water outlet is in a periodic three-phase region. A good COD, and removal of ammonia nitrogen and total nitrogen can be achieved during wastewater circulation through the entire system. The technical solution comprises: forming an upper sub-wetland and a lower sub-wetland, the upper sub-wetland being provided above the lower sub-wetland, and the lower part of the upper sub-wetland being in communication with the lower sub-wetland by means of communication pipe; and providing a water outlet on the side of the lower sub-wetland to connect to the siphon drainage pipe, the top of the siphon drainage pipe being lower than the top of the lower sub-wetland to form a pressure differential for periodic siphon drainage.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, and relates to a high-efficiency oxygen supplement and high-efficiency water quality purification artificial wetland system, in particular to a three-phase high-efficiency oxygen supplement artificial wetland system. Background technique [0002] my country is a country seriously short of water, and the per capita water resource is only about 30% of the world's average level. The shortage of water resources has become an important factor restricting social and economic development. Sewage recycling is an effective way to alleviate the contradiction between supply and demand of water resources and promote the sustainable development of urban economy and society. Constructed wetland is a safe and effective bio-ecological sewage regeneration treatment technology, which has the functions of water purification, water ecological storage, beautification of landscape, and maintenance of ecologic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCC02F3/32
Inventor 庄林岚张建郑欣慧赵倩
Owner SHANDONG UNIV
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