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Tidal current wetland coupled electrochemical reinforced denitrification and dephosphorization method and system

A technology of nitrogen and phosphorus removal and tidal flow, applied in chemical instruments and methods, anaerobic digestion treatment, water/sludge/sewage treatment, etc., can solve the problem that wetland sewage treatment operation is greatly affected by seasonal changes, and achieve Improve oxidation removal efficiency, strengthen reoxygenation ability, and improve the effect of microbial activity

Inactive Publication Date: 2013-02-27
CHINA AGRI UNIV
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Problems solved by technology

[0006] In view of the above problems, the present invention provides a tidal flow constructed wetland coupling electrochemical synergistically enhanced nitrogen and phosphorus removal method and system, which can not only strengthen the removal effect of nitrate and phosphate in the tidal flow constructed wetland bed, but also solve the problem of wetland The operation of sewage treatment is greatly affected by seasonal changes, etc.

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  • Tidal current wetland coupled electrochemical reinforced denitrification and dephosphorization method and system
  • Tidal current wetland coupled electrochemical reinforced denitrification and dephosphorization method and system

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0033] Such as figure 1 As shown, the tidal flow wetland coupling electrochemical enhanced nitrogen and phosphorus removal system of the present invention includes a tidal flow constructed wetland aerobic bed 1 , anaerobic electrolytic bed 2 and a system return pump 8 .

[0034] The tidal flow artificial wetland good breeding bed 1 has wetland plants 9 planted thereon, and is connected with the water inlet pipe 5 provided with a pump. The substrate of the tidal flow artificial wetland aerobic bed 1 is zeolite, which has a strong effect on ammonia nitrogen in waste water. The adsorption performance can strengthen the adsorption capacity of the system to ammonia nitrogen during the flooding stage of the tidal flow wetland bed. At the same time, in the tidal flow wetland aerobic bed 1, there is a reoxygenation strengthening pipe 10 connected to ...

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Abstract

The invention belongs to the field of sewage treatment, and relates to a tidal current wetland coupled electrochemical reinforced denitrification and dephosphorization method and system. The system comprises a tidal current artificial wetland aerobic bed (1), an anaerobic electrolysis bed (2) positioned on the lower part of the tidal current artificial wetland aerobic bed (1), and a system reflux pump (8) for connecting the tidal current artificial wetland aerobic bed (1) and the anaerobic electrolysis bed (2), wherein the tidal current artificial wetland aerobic bed (1) is communicated with a water inlet pipe (5) of an arranged pump, and planted with wetland plants (9); a first plate electrode (4) and a second plate electrode (11) are arranged inside the anaerobic electrolysis bed (2) and respectively connected with electrodes of a direct current power supply (3), and the bottom of the anaerobic electrolysis bed (2) is provided with a draining valve (6); and the positive and negative electrodes of the direct current power supply (3) can be exchanged regularly. The invention can reinforce the removal effect of nitrate and phosphate in the tidal current artificial wetland bed, and solve the problem that the operation of the wetland sewage treatment is greatly influenced by the seasonal changes, and the like.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a method and system for coupling electrochemically enhanced denitrification and dephosphorization in tidal flow wetlands. Background technique [0002] With the rapid development of the economy and the continuous improvement of people's living standards, the amount of sewage discharge is also increasing, making my country's water source pollution, water eutrophication and environmental water quality deterioration increasingly serious. At present, my country's sewage treatment mainly relies on the traditional centralized activated sludge process. Although the technology and process have become increasingly mature and perfect, they are facing the problem of high construction and operation costs, and many economically underdeveloped areas simply cannot afford it. Large-scale sewage treatment plants, but many established sewage treatment plants are idle due to the shortage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/32C02F3/28C02F1/461
CPCY02W10/10
Inventor 吴树彪鞠鑫鑫董仁杰
Owner CHINA AGRI UNIV
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