Enhanced nitrogen and phosphorus removal combined type artificial subsurface-flow wetland treatment system

A technology of artificial wetland system and subsurface wetland, which is applied in the field of combined artificial subsurface wetland treatment system for strengthening denitrification and phosphorus removal, can solve the problems of low denitrification reaction efficiency, lack of carbon source, large hydraulic load, etc., and achieves the improvement of nitrification reaction rate. , Strengthen the phosphorus removal efficiency and reduce the effect of clogging

Inactive Publication Date: 2016-08-31
上海秦森园林股份有限公司
View PDF6 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Subsurface flow constructed wetlands can be divided into vertical flow constructed wetlands and flat flow constructed wetlands, which have large hydraulic loads and large pollution loads, and have good removal effects on BOD, COD, SS, heavy metals and other pollution indicators, and there are few odors and breeding of mosquitoes and flies , can be used to treat sewage with high ammonia nitrogen content, but the efficiency of nitrogen and phosphorus removal in traditional subsurface flow constructed wetlands is often not high, and the packing layer is easy to clog
[0003] The main mechanism of nitrogen removal in constructed wetlands is the nitrification and denitrification of microorganisms. The dissolved oxygen content in traditional subsurface flow constructed wetlands is not high, and the denitrification process lacks carbon sources, resulting in low nitrification and denitrification reactions, and low nitrogen removal rates.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Enhanced nitrogen and phosphorus removal combined type artificial subsurface-flow wetland treatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, this embodiment strengthens the nitrogen and phosphorus removal combined artificial subsurface flow wetland treatment system, which includes a sedimentation tank 2, a front water collection buffer pool 3, a vertical flow artificial wetland system 4, an advection artificial wetland system 7, and a rear water collection buffer pool 8, a screen 1 is provided at the water inlet end of the sedimentation tank 2, an overflow weir 6 is provided between the sedimentation tank 2 and the front catchment buffer tank 3, and distributed on the vertical flow artificial wetland system 4 Aquatic plant layer 5, the lower part of the facing surface of the vertical flow constructed wetland system 4 is provided with a water inlet 11, and the upper part of the back surface of the vertical flow constructed wetland system 4 is provided with a water outlet pipe 12, and the water inlet 11 is located at the front water collection Between the buffer pool 3 and the vertic...

Embodiment 2

[0034] Such as figure 1 As shown, this embodiment strengthens the nitrogen and phosphorus removal combined artificial subsurface flow wetland treatment system, which includes a sedimentation tank 2, a front water collection buffer pool 3, a vertical flow artificial wetland system 4, an advection artificial wetland system 7, and a rear water collection buffer pool 8, a screen 1 is provided at the water inlet end of the sedimentation tank 2, an overflow weir 6 is provided between the sedimentation tank 2 and the front catchment buffer tank 3, and distributed on the vertical flow artificial wetland system 4 Aquatic plant layer 5, the lower part of the facing surface of the vertical flow constructed wetland system 4 is provided with a water inlet 11, and the upper part of the back surface of the vertical flow constructed wetland system 4 is provided with a water outlet pipe 12, and the water inlet 11 is located at the front water collection Between the buffer pool 3 and the vertic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses an enhanced nitrogen and phosphorus removal combined type artificial subsurface-flow wetland treatment system. The system comprises a sedimentation pool with a screen cloth, a front catchment buffer pool, a vertical flow artificial wetland, an advection artificial wetland system and a rear catchment buffer pool; algae and suspension pollutants in sewage are removed through the screen cloth, then, primary sedimentation of the sewage is completed inside the sedimentation pool, the sewage enters the front catchment buffer pool through an overflow weir, and then the sewage enters the vertical flow artificial wetland system through a water inlet, sufficient oxygen is provided for the vertical flow artificial wetland system through a micro-aeration device, then, the sewage enters the advection artificial wetland system after the adsorption effect of microorganisms, plants and matrixes, and the sewage is discharged into the rear catchment buffer pool after being treated by the advection artificial wetland system, and discharged out of the system through a water outlet pipe. According to the enhanced nitrogen and phosphorus removal combined type artificial subsurface-flow wetland treatment system, the nitrogen and phosphorus removal effect can be enhanced, and suspended particles, organic pollutants, heavy metal ions and other contaminants in sewage can be effectively removed.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a combined artificial subsurface flow wetland treatment system for enhanced nitrogen and phosphorus removal. Background technique [0002] Subsurface flow constructed wetlands can be divided into vertical flow constructed wetlands and flat flow constructed wetlands, which have large hydraulic loads and large pollution loads, and have good removal effects on BOD, COD, SS, heavy metals and other pollution indicators, and there are few odors and breeding of mosquitoes and flies , can be used to treat sewage with high ammonia nitrogen content, but the efficiency of nitrogen and phosphorus removal in traditional subsurface flow constructed wetlands is often not high, and the packing layer is easy to block. [0003] The main mechanism of nitrogen removal in constructed wetlands is the nitrification and denitrification of microorganisms. The dissolved oxygen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/001C02F1/281C02F1/52C02F3/32C02F3/34
Inventor 张微徐阳
Owner 上海秦森园林股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap