Intermission type artificial marsh sewage treating method and sewage treating system

A sewage treatment system and artificial wetland technology, which is applied in the fields of sewage treatment and environmental protection, to achieve the effects of reducing land occupation, improving treatment efficiency, and promoting oxidation and decomposition

Inactive Publication Date: 2007-09-19
CHONGQING UNIV
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Problems solved by technology

[0003] Aiming at the deficiencies existing in the existing constructed wetland sewage treatment, the present invention proposes an intermittent constructed wetland sewage treatment method and system, which improves t

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  • Intermission type artificial marsh sewage treating method and sewage treating system

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[0021] Referring to Figure 1, the treatment system includes a pool body 2, a filler 3, a ventilation standpipe 4, a horizontal ventilation pipe 5, a water inlet pipe 1, a water outlet pipe 6, and a water outlet valve 7, etc. The pool body 2 adopts a rectangular pool body, the pool body is filled with filler 3, the filler 3 is provided with a ventilation standpipe 4 and a horizontal ventilation pipe 5, the ventilation standpipe 4 extends out of the water surface, and the horizontal ventilation pipe 5 is distributed in the filler. The upper part and the bottom of the pool body are connected to the water inlet pipe 1 and the water outlet pipe 6 respectively. Sewage enters the tank through the inlet pipe 1, and after the sewage fully contacts and reacts with the microorganisms and plants 8 on the filler, the valve 7 on the outlet pipe 6 is opened, and the sewage is discharged by gravity flow. The wetland system for draining sewage enters the idle period, relying on the natural reoxyge...

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Abstract

The present invention relates to a batch type constructed wetland sewerage treatment method and a system thereof, wherein the system comprises a cell body, a filling, a water intake pipe, a water output pipe and a ventilating pipe. The cell body is filled with matrix filling and is provided with a ventilating pipe, wherein plants are planted in the filling. Each performance period of the system comprises four steps of feeding water, reaction, discharging water and emptying, and the system runs in a manner of an ordinal batch type and a repetitive cycle period. The water intake pipe is switched in from the upper part, and the reaeration of the system bottom at reaction stage is intensified by the ventilating pipe, which improve the nitration efficiency. After the reaction finishes, discharging is carried out by the bottom water output pipe, and then the constructed wetland is at an emptying and idlesse step, wherein the reaeration of the constructed wetland system is completed, so as to improve the nitration efficiency of the system, the oxidative decomposition of sludge and the jam of the system. The present invention has the advantages of high efficiency, excellent denitrogenation effete, small occupation of land, little energy consumption, low cost, and is not easy to be jammed.

Description

Technical field: [0001] The invention belongs to the technical fields of sewage treatment and environmental protection, and in particular relates to a wetland sewage treatment technology. Background technique: [0002] At present, there are no reports about the intermittent constructed wetland sewage treatment system at home and abroad. The existing sewage treatment methods in constructed wetlands mainly include surface flow, subsurface flow and vertical flow, all of which are continuous flow; in practical engineering applications, there are low efficiency and large land occupation, especially because of the low concentration of DO in the system, which makes The nitrification efficiency is low, which affects the denitrification efficiency; and there are problems such as complex water distribution system and uneven water distribution. Invention content: [0003] Aiming at the deficiencies in the existing constructed wetland sewage treatment, the present invention proposes ...

Claims

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Application Information

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IPC IPC(8): C02F3/02C02F3/32
CPCY02W10/10
Inventor 周健张智张勤卿晓霞王继欣潘凡曹琳栗静静
Owner CHONGQING UNIV
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