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

Preparation method for substrate of vertical-flow constructed wetlands

A constructed wetland, vertical flow technology, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., to improve treatment efficiency, maintain stability, and prolong service life.

Active Publication Date: 2009-11-25
INST OF AQUATIC LIFE ACAD SINICA
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the wide variety of wastewater properties, no one substrate can effectively treat all wastewater

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
  • Preparation method for substrate of vertical-flow constructed wetlands
  • Preparation method for substrate of vertical-flow constructed wetlands
  • Preparation method for substrate of vertical-flow constructed wetlands

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In the embodiment, the vertical flow constructed wetland simulation small test system device uses a PVC pipe with an inner diameter of 25 cm and a height of 100 cm. The height of the substrate is 90 cm, and a 10 cm protective layer is left on the top of the pipe. A kind of its preparation method of vertical flow artificial wetland substrate, comprises the following steps:

[0021] A. Select raw materials: Select high-quality matrix bio-ceramsite, zeolite, anthracite, vermiculite and steel slag, among which bio-ceramsite and anthracite are divided into three different particle sizes, and zeolite is divided into two different particle sizes.

[0022] B. The particle size of each raw material: the particle size of the three kinds of biological ceramsite is 3 or 4 or 5mm, 5 or 6 or 7mm, 8 or 9 or 10 or 12 or 14mm; the particle size of the two kinds of zeolite B is 2 or 4 or 5mm, 7 or 9 or 10 or 12mm; three kinds of anthracite are 5 or 7 or 9 or 10mm, 10 or 12 or 14 or 16 or...

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
heightaaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

A preparation method for a substrate of vertical-flow constructed wetlands is disclosed, comprising the steps of: A, selection of raw materials: biological ceramisite, zeolite, anthracite, vermiculite and slag; B, particle size of each raw material; C, each combined substrate: when the treated wastewater-characteristic pollutant is organic matter, the substrate is ceramisite; when the treated wastewater-characteristic pollutant is nitrogen, the substrate is zeolite; when the treated wastewater-characteristic pollutant is phosphorus, two substrate combining ways are present, wherein, one of the combining ways is that the substrate is anthracite and the other one of the combining ways is that the substrates, from top to bottom, are anthracite, vermiculite and slag in sequence; when the treated wastewater is mixed wastewater containing organic matter, nitrogen and phosphorus, the substrates, from top to bottom, are anthracite, biological ceramisite and zeolite. The method is simple and is convenient in operation as well as can effectively remove characteristic pollutants in the wastewater, and after being treated the wastewater can accord with standard B in Wastewater Discharge Standard of Municipal Wastewater Treatment Plant and is directly reused or discharged into waters.

Description

technical field [0001] The invention belongs to the technical field of water pollution control engineering ecology, and specifically relates to a method for preparing a vertical flow artificial wetland substrate, which can improve the system's ability to treat characteristic pollutants and comprehensively remove organic matter, nitrogen and phosphorus pollutants, and is suitable for use in Treatment of various domestic sewage, industrial and agricultural wastewater and polluted surface water. technical background [0002] Vertical flow artificial wetland is a high-efficiency ecological water purification technology. It has a unique construction structure and water flow pattern. It occupies a relatively small area, has strong nitrogen and phosphorus removal capabilities, and can operate stably for a long time. Reliable, efficient and energy-saving, simple and easy to operate, low investment, low operating costs, remarkable ecological and environmental benefits, and can realiz...

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): C02F3/34
Inventor 吴振斌贺锋武俊梅徐栋成水平梁威周巧红
Owner INST OF AQUATIC LIFE ACAD SINICA
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