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Ag3PO4 photocatalysis and artificial wetland microbial battery coupling system and application thereof

A technology of microbial battery and artificial wetland, applied in the field of environmental engineering

Inactive Publication Date: 2016-08-17
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Currently Ag 3 PO 4 The coupling technology of photocatalytic technology and constructed wetland microbial battery has not been reported at home and abroad

Method used

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  • Ag3PO4 photocatalysis and artificial wetland microbial battery coupling system and application thereof
  • Ag3PO4 photocatalysis and artificial wetland microbial battery coupling system and application thereof

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Embodiment 1

[0026] Such as figure 1 , Ag of the present invention 3 PO 4 The photocatalytic coupled constructed wetland microbial battery system includes a constructed wetland pool 1 and a light source 2 for photocatalysis.

[0027] The constructed wetland pool 1 includes a body 11 , a water inlet area 12 communicating with the bottom of the body 11 , and a water outlet area 13 communicating with the top of the body. The water inlet area 12 is conical, and the bottom is provided with a water inlet 121, and the water inlet area 12 can play the role of uniform water distribution. The water outlet area 13 has a water outlet 131 . The top of the main body 11 is open, and a number of water intakes 5 are provided on the side wall for monitoring water quality. The body is distributed with a first gravel layer 111, an anode conductive filler layer 112, a second gravel layer 113 and a cathode conductive material layer 114 from bottom to top, wherein the anode conductive filler layer 112 consti...

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Abstract

The invention discloses an Ag3PO4 photocatalysis and artificial wetland microbial battery coupling system and application thereof. The system comprises an artificial wetland pool and a power supply used for photocatalysis, wherein a first gravel layer, an anode conductive filler layer, a second gravel layer and a cathode conductive material layer are distributed in the artificial wetland pool from bottom to top; an anode is formed by the anode conductive filler layer, a photocatalytic cathode is formed by the cathode conductive material layer, and the photocatalytic cathode and the anode are respectively led out by a lead and are connected with an external circuit; wetland plants are cultivated in the cathode conductive material layer; the cathode conductive material layer is filled with a conductive carbon material and an photocatalyst Ag3PO4. The invention also discloses the application of the system in treatment of dye wastewater. The invention couples a photocatalysis technology and an artificial wetland microbial battery, thus enhancing the treatment effect of the dye wastewater.

Description

technical field [0001] The invention belongs to the field of environmental engineering, in particular to an Ag 3 PO 4 Photocatalytic coupled constructed wetland microbial battery system and its application. Background technique [0002] Advanced oxidation photocatalytic water treatment technology has the advantages of low energy consumption and less secondary pollution. Its important frontier research progress is centered on new visible light-responsive catalysts, such as A x B y o z Type Ag 2 CO 3 、BiVO 4 , SrTiO 3 etc. to better utilize solar energy for pollution control. Visible light catalyst silver phosphate can be prepared by precipitation method. Li Ning et al. prepared Ag by one-step method 3 PO 4 It has stable catalytic performance for visible light with a wavelength less than 525nm; the removal rate of rhodamine B reaches 93.9% when irradiated by a xenon lamp for 45 minutes, while N-TiO 2 Only 8.1% were removed. Ag by Katsumata et al. 3 PO 4 Photocat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14B01J27/18C02F103/30
CPCY02W10/37C02F9/00B01J27/1817C02F1/281C02F1/30C02F1/4672C02F3/28C02F3/32C02F2103/30C02F2203/006C02F2301/08
Inventor 李先宁程思超
Owner SOUTHEAST UNIV
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