Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ladder-type composite constructed-wetland apparatus for processing low-pollution water

A technology of artificial wetlands and low-pollution water, applied in the directions of water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of aggravating water environment pollution, reduce construction costs and Post-operating costs, increasing oxygen enrichment, and reducing floor space

Inactive Publication Date: 2014-09-03
FUDAN UNIV
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lag in the construction of rural sewage treatment facilities, a large amount of untreated domestic sewage is directly discharged into ditches, rivers, and finally into receiving water bodies such as lakes, which intensifies the pollution of the water environment.

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
  • Ladder-type composite constructed-wetland apparatus for processing low-pollution water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.

[0023] A stepped composite constructed wetland device for low-pollution water treatment provided in this embodiment has a structure as follows figure 1 As shown; it includes high-level water distribution tank 1, first-level vertical flow artificial wetland 2, second-level composite vertical flow artificial wetland 3, third-level submerged flow artificial wetland 4 and anaerobic sump 5; high-level water distribution tank 1, first-level vertical flow artificial wetland The constructed wetland 2, the secondary compound vertical flow constructed wetland 3 and the tertiary submerged flow constructed wetland 4 are arranged alternately in sequence, and the heights of the spatial positions are successively reduced to form a ladder structure; the anaerobic water collection pool 5 is located underground, and a power distribution cabinet is arranged above it , a ...

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

No PUM Login to View More

Abstract

The invention belongs to the technical field of environment-engineering sewage processing, and concretely relates to a ladder-type composite constructed-wetland apparatus for processing low-pollution water. The apparatus comprises an elevated water-distribution tank, a first-grade vertical-flow constructed wetland, a second-grade composite vertical-flow constructed wetland, a third-grade subsurface-flow constructed wetland and an anaerobic water-collecting tank; the elevated water-distribution tank is a cavity with a sealed top end, the cavity is inside paved with a filler, and a water-collecting pipe net is arranged close to the bottom; ecological plants are grown surfaces layers of the first-grade vertical-flow constructed wetland, the second-grade composite vertical-flow constructed wetland and the third-grade subsurface-flow constructed wetland, matrix and fillers are used to pave in inner layers of the three kinds of constructed wetlands, and water-collecting pipe nets are arranged at bottom layers of the three kinds of constructed wetlands; and the anaerobic water-collecting tank is an underground facility, the top end is provided with a cover, and the inner layer is paved with a soft filler. The beneficial effects comprise that the apparatus is high in decontamination efficiency, low in occupied land area and construction cost, low in anaphase management cost and simple to operate, and is suitable for processing of rural domestic sewage and low-pollution water.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering sewage treatment, and in particular relates to a stepped composite constructed wetland device for low-pollution water treatment. Background technique [0002] Rural domestic sewage is an important part of non-point source pollution. It mainly contains organic metabolic waste, some animal and plant food residues, and physiological excretion (urine, feces), etc. It also contains a large number of non-pathogenic microorganisms and a small amount that can cause human Pathogenic microorganisms of infectious diseases. Due to the lag in the construction of rural sewage treatment facilities, a large amount of untreated domestic sewage is directly discharged into ditches, rivers, and finally into receiving water bodies such as lakes, which intensifies the pollution of the water environment. Considering the current economic foundation and management level in rural areas, the treatment of ...

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
IPC IPC(8): C02F9/14C02F3/32
CPCY02W10/10
Inventor 郑正黄威栾晓男张继彪李纪华张良杰
Owner FUDAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com