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Method for treating wastewater in artificial wetland and wastewater treating device for implementing method

A technology of sewage treatment device and constructed wetland, applied in biological water/sewage treatment, water/sludge/sewage treatment, aerobic and anaerobic process treatment, etc. , Wetland microbial impurities and other problems, to achieve good removal effect, improve wetland removal rate, short time effect

Active Publication Date: 2011-09-21
ZHONGSHAN ENVIRONMENTAL PROTECTION IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Second, the microorganisms in wetlands are relatively complex and not specific
[0006] Third, miscellaneous bacteria and obligate bacteria compete for nutrition, making obligate bacteria less active, thereby reducing the efficiency of sewage treatment

Method used

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  • Method for treating wastewater in artificial wetland and wastewater treating device for implementing method
  • Method for treating wastewater in artificial wetland and wastewater treating device for implementing method

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Embodiment Construction

[0029] The present invention is described in detail below in conjunction with accompanying drawing:

[0030] A method for treating sewage in a multi-layer pre-embedded microbial vertical flow artificial wetland and a sewage treatment device for realizing the method. The sewage treatment device includes an artificial pool 1 for sewage treatment. The size of the artificial pool 1 can be designed according to actual conditions. need. In the artificial pool 1, a large stone layer 21, a fine stone layer 22, a sand filter layer 9, an activated carbon filter layer 3, a wetland filler layer 8, and a fourth bacterial layer containing methane bacteria and anaerobic bacteria are respectively arranged from bottom to top. 44. Wetland filler layer 8, the third bacterial layer containing anoxic bacteria and denitrifying bacteria 43, wetland filler layer 8, the second bacterial layer containing facultative bacteria, acidifying hydrolytic bacteria, defoaming bacteria, and denitrifying bacteria...

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Abstract

The invention discloses a method for treating wastewater in an artificial wetland and a wastewater treating device for implementing the method, wherein the method for treating the wastewater comprises the following steps: firstly, taking advantage of plant roots to absorb N, C and P from the wastewater so that part of N, COD, BOD and P can be removed; then utilizing nitrobacterium, aerobes and polyphosphate accumulationg bacteria to remove ammonia, organisms and phosphorus from the wastewater; then, utilizing acidified hydrolytic bacteria and anoxic bacteria to remove macromolecular organisms; and finally utilizing methane bacteria and anaerobes to remove organic acid and micromolecular organisms. In addition, the wastewater treating device comprises an artificial pond. The bottom of the artificial pond is provided with a bearing layer. An active carbon filter layer for filtering and purifying water is arranged above the bearing layer. A bacteria layer for eliminating and decomposing various pollutants in the wastewater is arranged above the active carbon filter layer. A layer of wetland filler is arranged between the active carbon filter layer and the bacteria layer. In the artificial pond, the bottom of the bearing layer is provided with a water draining pipe.

Description

【Technical field】 [0001] The invention relates to a method for treating sewage in a multi-layer pre-embedded microbial vertical flow artificial wetland and a sewage treatment device for realizing the method. 【Background technique】 [0002] Among the existing vertical flow constructed wetland sewage treatment devices and sewage treatment methods. When the sewage flows vertically from top to bottom or bottom to top, the natural microorganisms enter the water body and use the nutrients in the water to inhabit and grow on the plant roots or fillers in the wetland. After a long period of natural screening, the microorganisms growing in the wetland have formed special strains for obligate treatment of sewage. The bacteria form an ecosystem together with the plants in the wetland to purify the water. [0003] But this method has the following disadvantages: [0004] First, the elimination and screening process of microorganisms is long, and the commissioning cycle of sewage trea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/32C02F3/34C02F3/30
CPCY02W10/10
Inventor 宋应民
Owner ZHONGSHAN ENVIRONMENTAL PROTECTION IND CO LTD
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