Method for treating home wastewater through artificial wetland combined vertical current with surface current

A technology for artificial wetlands and domestic sewage, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc. The effect of reducing treatment costs and increasing removal capacity

Active Publication Date: 2005-10-26
SOUTH CHINA AGRI UNIV
View PDF0 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (2) The vertical flow constructed wetland has a strong treatment capacity and nitrification ability for oxygen-consuming organic matter in wastewater. 5 The removal effect of COD and COD is better, but the removal effect of SS is worse than that of horizontal flow constructed wetland; although it has a strong nitrification treatment ability for wastewater, its denitrification ability is also worse than that of horizontal flow constructed wetland, so it cannot Independently complete the two treatment processes of nitrification and denitrification of wastewater to achieve the purpose of wastewater denitrification treatment
[0010] (3) Both the vertical flow constructed wetland system and the surface flow constructed wetland system are not very good at removing phosphorus from domestic sewage, especially the surface flow constructed wetland is poor, and the current vertical flow constructed wetland is widely used in sand, gravel and other substrates The adsorption saturation life of phosphorus is only a few years

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
  • Method for treating home wastewater through artificial wetland combined vertical current with surface current
  • Method for treating home wastewater through artificial wetland combined vertical current with surface current
  • Method for treating home wastewater through artificial wetland combined vertical current with surface current

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] The daily designed water treatment capacity is 100-200m 3 / d.

[0037] Design Parameters:

[0038] Sedimentation tank: a rectangular tank with a design size of 7.58m×3.68m×3.3m, divided into two compartments, with an effective water depth of 2.6m and an effective volume of 49.33m 3 ,reinforced-concrete structure.

[0039] The design dimension of the vertical flow constructed wetland is 20.1m×5.9m×1.3m in length×width×height, divided into three grids, with brick structure and cement plastered surface. The practical size of a single pool is 6.7m x 5.9m x 1.3m in length x width. The actual use area is 120m 2 . The vertical flow bed bed layer is composed of 3-5cm in diameter and 1-2cm gravel, with a thickness of 10-15cm; the thickness of the artificial mixed matrix layer is 100-110cm.

[0040] Constructed wetland with surface flow: a rectangle whose design dimensions are 30.0m×6.0m×30.0cm in length×width×height. The surface flow bed is mainly composed of soil, and th...

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 present invention discloses a combined artificial wet land domestic sewage treatment method. Said combined artificial wet land is formed from front vertical-flow artificial unit land and rear surface-flow artificial wet land which are series-connected together. Firstly, the domestic sewage can be fed into precipitation tank to remove sand and large-granule suspended solids, then fed into vertical-flow artificial wet land to implement filtration treatment, in the vertical-flow artificial wet land the artificial mixed matrix can be filled and the ornamental plants can be planted, then the sewage can be fed into the surface-flow artificial wet land to make purification treatment, in the surface-flow wet land the water plants, flower plant and vegetables can be planted or the fishes can be bred.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method for treating domestic sewage in a composite constructed wetland. Background technique [0002] The domestic sewage constructed wetland treatment methods mainly include vertical flow constructed wetland, horizontal flow, surface flow and composite constructed wetland combining vertical flow and horizontal flow. [0003] The height of the vertical flow artificial wetland bed is more than 100cm, and finer substrates such as sand are usually used as the infiltration medium. The sewage is treated in the process of vertical infiltration from the surface downward, and most of the plants used are reeds and windmill grasses. , canna and vetiver etc. [0004] The height of the horizontal flow constructed wetland bed is about 60-80cm, and a relatively coarse substrate such as gravel is used as the treatment medium. The sewage flows horizontally under the surface of the co...

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): C02F3/32
CPCY02W10/10
Inventor 崔理华
Owner SOUTH CHINA AGRI UNIV
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