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Device and method for enhancing iron autotrophic denitrification coupling carbon capture

A technology of autotrophic denitrification and carbon capture, applied in chemical instruments and methods, anaerobic digestion treatment, biological water/sewage treatment, etc. It can shorten the start-up time, improve the reaction rate of microbial denitrification, and improve the removal rate.

Pending Publication Date: 2022-06-03
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, iron autotrophic denitrification technology still has the problems of slow growth of autotrophic microorganisms, long reactor start-up time, low nitrogen removal rate, and lack of attention to CO 2 capture (currently mainly bicarbonate as an inorganic carbon source) and other issues

Method used

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  • Device and method for enhancing iron autotrophic denitrification coupling carbon capture
  • Device and method for enhancing iron autotrophic denitrification coupling carbon capture

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Embodiment 1

[0093] like figure 1 shown:

[0094] A device for enhancing iron autotrophic denitrification coupled with carbon capture: including a water inlet device, a carbon dioxide gas supply system, a weak magnetic field reactor and an adsorption liquid pool; the water inlet device is connected to the water inlet of the weak magnetic field reactor; the The carbon dioxide gas supply system is connected with the air inlet of the weak magnetic field reactor; the weak magnetic field reactor is connected with the adsorption liquid pool through the exhaust port; the weak magnetic field reactor includes an iron-carbon carrier (the mass of iron and activated carbon). ratio of 3:1); the weak magnetic field reactor includes an aeration device, a porous carrier support plate and a combined magnetic carrier; the aeration device is located at the bottom of the weak magnetic field reactor; the porous carrier support plate is located above the aeration device; the combined magnetic carrier is suppor...

Embodiment 2

[0098] like figure 2 shown:

[0099] A device for enhancing iron autotrophic denitrification coupled with carbon capture: including a water inlet device, a carbon dioxide gas supply system, a weak magnetic field reactor and an adsorption liquid pool; the water inlet device is connected to the water inlet of the weak magnetic field reactor; the The carbon dioxide gas supply system is connected with the air inlet of the weak magnetic field reactor; the weak magnetic field reactor is connected with the adsorption liquid pool through the exhaust port; the weak magnetic field reaction zone includes a first weak magnetic field reaction zone, a second weak magnetic field reaction zone Magnetic field reaction zone, permanent magnet, aeration device, porous carrier support plate and iron-carbon carrier; the permanent magnet includes a first permanent magnet, a second permanent magnet and a third permanent magnet; the first permanent magnet, the second permanent magnet The permanent m...

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Abstract

The invention relates to the technical field of wastewater denitrification and carbon emission reduction, in particular to a device and a method for enhancing iron autotrophic denitrification coupled carbon capture. The invention provides a device for enhancing iron autotrophic denitrification coupled carbon capture. The device comprises a water inlet device, a carbon dioxide supply system, a low-intensity magnetic field reactor and an adsorption liquid pool, the water inlet device is connected with a water inlet of the low-intensity magnetic field reactor; the carbon dioxide gas supply system is connected with a gas inlet of the low-intensity magnetic field reactor; the low-intensity magnetic field reactor is connected with the adsorption liquid pool through an exhaust port; the low-intensity magnetic field reactor comprises an iron-based carrier. The device can synchronously realize the purposes of denitrification and carbon emission reduction in the wastewater.

Description

technical field [0001] The invention relates to the technical field of wastewater denitrification and carbon emission reduction, in particular to a device and method for enhancing ferroautotrophic denitrification coupled with carbon capture. Background technique [0002] Nitrogen pollutants (including ammonia nitrogen and nitrate nitrogen) can lead to eutrophication of water bodies and further damage various aquatic ecosystems. The control of nitrogen pollutants is one of the urgent issues to be solved in the field of water environment governance. Biological nitrogen removal technology is widely used in the field of nitrogen removal due to its high efficiency and low cost. Under the background of carbon neutrality, low-carbon water treatment is a new direction and new path in the field of wastewater denitrification. Autotrophic denitrification does not require additional organic carbon sources, and does not emit carbon dioxide directly; sludge yield is low, energy consumpti...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F101/10C02F101/16
CPCC02F3/2806C02F2101/16C02F2101/10Y02W10/10
Inventor 邢薇姚宏高道清张泽玺邓凯丽
Owner BEIJING JIAOTONG UNIV
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