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Systems and methods for using root exudates to enhance wetland coupled systems for removing antibiotics from surface water

A technology of root exudate and coupling system, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. Degradation of organic matter and other problems, to achieve excellent removal effect, low operating cost, and good removal effect

Active Publication Date: 2017-09-29
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there have been many researches and applications on electricity-generating constructed wetlands.
However, the electricity generation power of the electricity-generating constructed wetland is relatively low, and it can only output low-voltage current. Poor electrical effect

Method used

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  • Systems and methods for using root exudates to enhance wetland coupled systems for removing antibiotics from surface water
  • Systems and methods for using root exudates to enhance wetland coupled systems for removing antibiotics from surface water
  • Systems and methods for using root exudates to enhance wetland coupled systems for removing antibiotics from surface water

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Embodiment 1

[0042] Reference figure 1 with figure 2 , image 3 with Figure 4 , A method of using root exudates to strengthen the wetland coupling system to remove antibiotics in surface water. The main method is to introduce antibiotic-containing surface water into the biofilm electrode reaction tank for a residence time of 1 to 2h; the surface after pretreatment by the biofilm electrode tank Water enters the plant root exudate production area and stays for about 1 day; after passing through the plant root exudate production area, the surface water rich in plant root exudates flows into the enhanced power generation constructed wetland for 1 to 2 days, and antibiotics fill the wetland. -Microbes, plants, and electrochemistry are removed under multiple combined actions; the wetland load of aquatic plants is 0.1~0.2m 3 ·M -2 ·D -1 , Strengthen the electricity generated by the electricity-generating constructed wetland to supply the biofilm electrode reaction zone.

[0043] There are cathode ...

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Abstract

The invention discloses a method for removing antibiotics in surface water through using a root secretion reinforced wetland coupling system. The method comprises the following steps: 1, surface water containing antibiotics is electrolyzed through a biomembrane electrode; and 2, pretreated surface water is treated plant root secretion reinforced electrogenesis constructed wetland, and obtained water is discharged. The invention also relates to a system adopted by the treatment method. The system is composed of an electrode biomembrane segment and the plant root secretion reinforced electrogenesis constructed wetland. The method fully uses the plant root secretion to reinforce the electrogenesis performance of CW-MFC, and powers up BER by using the electricity power generated by the CW-MFC, so the antibiotic degradation effect of the BER is reinforced, the removal effect is good, and no external energy is needed, so the method is a low-carbon water treatment technology.

Description

Technical field [0001] The invention belongs to the field of water pollution control and water treatment, and specifically relates to a method for removing antibiotics in surface water by using root exudates to strengthen a wetland coupling system. Background technique [0002] In recent years, while antibiotics have been widely favored, the abuse of antibiotics in their application process is worrying. A large number of active antibiotics are discharged into the environment, not only causing organic pollution, but also increasing the resistance of indigenous microorganisms to antibiotics. , Poses a threat to public health safety, and its environmental safety effects have attracted more and more attention, and its removal process has also become a problem to be solved urgently. The bioelectrochemical treatment method has the characteristics of high efficiency, low cost, simple operation, clean environment and friendly environment in the treatment of antibiotic-containing wastewat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 宋海亮夏岩张帅杨小丽
Owner SOUTHEAST UNIV
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