Multifunctional membrane aeration artificial wetland sewage treatment system

A sewage treatment system and artificial wetland technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve the problems of low oxygen utilization rate and uneven mass transfer, and achieve energy saving , high aeration efficiency, easy operation

Inactive Publication Date: 2014-06-18
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the disadvantages of uneven mass transfer and low oxygen utilization in the prior art, the purpose of the present invention is to provide a multifu

Method used

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  • Multifunctional membrane aeration artificial wetland sewage treatment system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] Example 1:

[0051] The wastewater after pretreatment (removal of slag) enters the water distribution area 1 through the inlet pump and the inlet pipe 4. The water distributed through the perforated flower wall 5 evenly enters the constructed wetland pool 2. At this time, the aeration method is membrane aeration. The biofilm in the constructed wetland pool 2 degrades the organic matter in the incoming water under the condition of aeration by the membrane aeration pipe network 8. On the one hand, the biofilm is constantly updated, and the other On the one hand, waste water pollutants are removed. The plants in the constructed wetland pool 2 also play a role in removing pollutants. The effluent enters the water collection area 3 as a sedimentation tank through self-flow, a small amount of sludge is discharged through the vent valve 15-2, and the effluent flows out of the water through the outlet pipe 16-1.

[0052] The contact oxidation process obtained above is used to tre...

Example Embodiment

[0053] Example 2:

[0054] The wastewater after pretreatment (removal of slag) enters the water distribution area 1 through the inlet pump and the inlet pipe 4. The water distributed through the perforated flower wall 5 evenly enters the constructed wetland pool 2. At this time, the aeration method is perforated aeration. The biofilm in the constructed wetland pool 2 degrades the organic matter in the inlet water under the condition of aeration by the membrane aeration pipe network 8. On the one hand, the biofilm is constantly updated, and the other On the one hand, waste water pollutants are removed. The plants planted in the constructed wetland pond 2 also play a role in removing pollutants. The effluent is pumped through the membrane in the membrane aeration pipe network 8 through the pumping stop ratio (13 minutes of operation, 2 minutes of stop) set by the PLC device on the self-priming pump 14, and is filtered by the second outlet pipe 16- The water outlet of 2 enters th...

Example Embodiment

[0057] Example 3:

[0058] After pretreatment (slag removal), the wastewater enters the water distribution area 1 through the water inlet pump and the water inlet pipe 4, and the water distributed through the perforated flower wall 5 evenly enters the constructed wetland pool 2. At this time, the aeration method is no aeration. The biofilm in the constructed wetland pool 2 degrades the organic matter in the influent water. On the one hand, the biofilm is constantly updated, and on the other hand, the wastewater pollutants are removed. The plants planted in the constructed wetland pond 2 also play a role in removing pollutants. The effluent flows through the perforated flower wall 5 into the water collection area 3, and the effluent flows out of the first water outlet pipe 16-1.

[0059] The traditional constructed wetland process obtained above is used to treat micro-polluted raw water, and polluted river water is selected. In the feed water COD Cr , COD M n, NH 3 -N, SS, turbid...

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Abstract

The invention discloses a multifunctional membrane aeration artificial wetland sewage treatment system. The multifunctional membrane aeration artificial wetland sewage treatment system comprises an artificial wetland tank, wherein an anti-seepage treatment layer is arranged at the bottom of the artificial wetland tank, and a pebble cushion layer, a ceramsite filter material layer and a planting soil layer are sequentially laid on the anti-seepage treatment layer; a water distribution zone and a water collecting zone are respectively arranged at the two sides of the artificial wetland tank, and the water distribution zone and the water collecting zone are respectively connected with the artificial wetland tank through perforated decorated walls. The multifunctional artificial wetland sewage treatment system disclosed by the invention can be transformed specific to inflow water quality of sewage and is flexible in an aeration manner and an operation manner, good in a treatment effect and energy-saving. The multifunctional membrane aeration artificial wetland sewage treatment system has the functions of a conventional artificial wetland and an aeration type artificial wetland and can operate in a multifunctional manner in the form of biological contact oxidation according to a membrane biological reaction technology.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a multifunctional membrane aeration artificial wetland sewage treatment system. Background technique [0002] Constructed wetland is a ground similar to swampland that is artificially built and operated under control. Sewage is distributed to the artificially constructed wetland in a controlled manner. In the process of sewage flowing in a certain direction, soil, artificial media, and plants are mainly used. , Microbial physical, chemical, biological triple synergy, a technology for sewage treatment. Its mechanism of action includes adsorption, retention, filtration, redox, precipitation, microbial decomposition, transformation, plant shading, residue accumulation, transpiration of water and nutrient absorption, and the action of various animals. [0003] The constructed wetland treatment system is mainly used for advanced sewage treatment. It has the charact...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 郭冀峰刘航胡丹李莹莹关卫省
Owner CHANGAN UNIV
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