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Electrochemical-biological fluidized bed reactor and wastewater treatment method

A biological fluidized bed, electrochemical technology, applied in chemical instruments and methods, water/sludge/sewage treatment, aerobic and anaerobic process treatment, etc., can solve the problem of limited improvement of denitrification efficiency and biofilm on the electrode surface The specific surface area is small, the biofilm is easy to fall off, etc., to achieve the effect of improving the efficiency of electrochemical reaction, strengthening the mass transfer effect, and fast transfer speed

Inactive Publication Date: 2015-08-26
SOUTH CHINA UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

However, in the electrode-biofilm process, due to the small specific surface area of ​​the biofilm on the electrode surface and the easy shedding of the biofilm, the effect of improving denitrification efficiency is limited. less

Method used

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  • Electrochemical-biological fluidized bed reactor and wastewater treatment method
  • Electrochemical-biological fluidized bed reactor and wastewater treatment method

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Embodiment

[0043] A kind of electrochemical-biological fluidized bed reactor of the present embodiment, such as figure 1 As shown, it includes connected anaerobic fluidized bed 1 and aerobic fluidized bed 2, the lower part of the anaerobic fluidized bed and the lower part of the aerobic fluidized bed are connected through the first electrode group, and the anaerobic fluidized bed The upper part of the anaerobic fluidized bed is connected with the upper part of the aerobic fluidized bed through the second electrode group; the bottom of the anaerobic fluidized bed is provided with a first water inlet, and the upper part of the anaerobic fluidized bed is provided with a first water outlet. The bottom of the fluidized bed is provided with a second water inlet, the upper part of the aerobic fluidized bed is provided with a second water outlet, and the first water outlet and the second water inlet are connected by a sewage pipeline; the bottom of the aerobic fluidized bed is provided with Aera...

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Abstract

The invention discloses an electrochemical-biological fluidized bed reactor and a wastewater treatment method. The reactor comprises an anaerobic fluidized bed and an aerobic fluidized bed. The lower portions of the anaerobic fluidized bed and the aerobic fluidized bed are connected through a first electrode group. The upper portions of the anaerobic fluidized bed and the aerobic fluidized bed are connected through a second electrode group. A first water inlet and a first water outlet are arranged in the anaerobic fluidized bed, a second water inlet and a second water outlet are arranged in the aerobic fluidized bed, and the first water outlet and the second water outlet are connected through a wastewater pipeline. An aeration head is arranged at the bottom of the aerobic fluidized bed. The wastewater treatment method includes maintaining the temperature in the anaerobic fluidized bed and the aerobic fluidized bed to be in the range of 18-38 DEG C, adding electrolyte into organic wastewater, and sequentially delivering the wastewater into the anaerobic fluidized bed and the aerobic fluidized bed for treatment. By means of the reactor and the wastewater treatment method, biological degradation is introduced in a conventional electrochemical system to achieve the oxidation-reduction where electrochemistry and biological degradation are coupled. The treatment speed is greatly increased, and the treatment effect of nitrogen-rich organic wastewater is improved.

Description

technical field [0001] The invention relates to the technical field of organic wastewater treatment, in particular to an electrochemical-biological fluidized bed reactor and a wastewater treatment method thereof. Background technique [0002] Coking wastewater and other wastewater containing refractory organic pollutants are characterized by high nitrogen content and refractory organic matter. Due to its complex composition, stable structure, strong toxicity and poor biodegradability, conventional sewage treatment methods are difficult. Therefore, it brings great pollution to the environment and has become a technical problem that has been paid attention to and to be solved in the field of environmental protection water treatment for many years. [0003] Among the traditional sewage treatment methods, the biochemical method can effectively remove the organic matter and odor in the wastewater, reduce the chroma of the wastewater, and has mature technology in engineering appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/30
Inventor 吴海珍韦朝海
Owner SOUTH CHINA UNIV OF TECH
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