A matrix material suitable for constructed wetland, constructed wetland system and application

A constructed wetland system and wetland technology, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve problems such as low operating cost and insufficient dissolved oxygen, and achieve increased effective area, Inexpensive, enhanced oxidation effect
CN113072167BActive Publication Date: 2022-03-22SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2022-03-22

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Abstract

The invention specifically relates to a matrix material suitable for constructed wetlands, a constructed wetland system and its application. The invention adopts ultra-fine fiber as filler in the unsaturated area and carbon felt as an excellent electronic conductor, and the two are added as functional substrates to different parts of the subsurface artificial wetland. The cylindrical arrangement of the carbon felt increases the effective area for collecting electrons. In the area of ​​high dissolved oxygen, the electrons that are the products of the nitrification reaction are quickly transferred and consumed, which stimulates the efficient progress of the nitrification reaction; Growth provides abundant attachment sites, which increases microbial abundance in wetland systems. After adding carbon felt, the contribution rate of matrix adsorption to total phosphorus removal was greatly improved compared with traditional constructed wetlands.
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Description

technical field

[0001] The invention belongs to the technical field of ecological environment water body purification, and specifically relates to a matrix material more suitable for vertical subsurface flow constructed wetlands, a constructed wetland system using the matrix material and its application in the field of sewage treatment. Background technique

[0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art.

[0003] Constructed wetland is an advanced sewage treatment ecological technology proposed in 1961. The characteristics of low investment, low operation and maintenance costs, and the functions of water purification, water ecological storage, and beautification of constructed wetlands have attracted ...

Claims

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