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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 multifunctional membrane aeration with flexible aeration mode, flexible operation form, good treatment effect and energy saving. Constructed wetland sewage treatment system

Method used

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  • Multifunctional membrane aeration artificial wetland sewage treatment system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

Embodiment 2

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

Embodiment 3

[0058] After pretreatment (slag removal), the waste water enters the water distribution area 1 through the water inlet pump and the water inlet pipe 4, and the water distribution through the perforated flower wall 5 evenly enters the constructed wetland pool 2. At this time, the aeration mode is no aeration. The biofilm in the artificial wetland pool 2 degrades the organic matter in the influent, on the one hand, the biofilm is continuously renewed, and on the other hand, the waste water pollutants are removed. The plants planted in the constructed wetland pool 2 also play a role in pollutant removal. The outlet water flows through the perforated flower wall 5 and enters the water collection area 3, and the outlet water flows out through the first water outlet pipe 16-1.

[0059] The traditional artificial wetland process obtained above is used to treat slightly polluted raw water, and the polluted river water is selected. Influent COD Cr , COD M n, NH 3 -N, SS, turbidity...

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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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