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

Device and method for intensifying deep phosphorus and nitrogen removal by intervening weak electric energy into artificial wetland based on pyrite filler

A technology of artificial wetland and enhanced depth, which is applied in the field of environmental technology and water treatment, can solve the problem that the improvement of phosphorus and nitrogen removal in artificial wetland is not very helpful, so as to promote denitrification, strengthen the effect of phosphorus removal, and avoid competition for oxygen Effect

Pending Publication Date: 2021-12-24
QUZHOU RES INST OF ZHEJIANG UNIV +1
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] People usually use limestone and other fillers to avoid local acidification caused by weak electric energy intervening in constructed wetlands, but these fillers do not help much in improving phosphorus and nitrogen removal in constructed wetlands

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
  • Device and method for intensifying deep phosphorus and nitrogen removal by intervening weak electric energy into artificial wetland based on pyrite filler
  • Device and method for intensifying deep phosphorus and nitrogen removal by intervening weak electric energy into artificial wetland based on pyrite filler
  • Device and method for intensifying deep phosphorus and nitrogen removal by intervening weak electric energy into artificial wetland based on pyrite filler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Method for the interventional phosphorus and defective depth of artificial wetland in the weak electrical energy of the thironite filler, including the following steps:

[0053] (1) Design and production simulation actual size artificial wetland simulation container, its shape figure 1 As shown, the wetland cloth and the hydrophobic layer are fill the grazles, and the particle diameter is 8-16 mm and 16-32 mm; the mixture in the aerobic zone is filled with the sulfite and the gravel, the aerobic region is filled with the magnetite and The volume ratio of sulphur mine and gravel in the mixture of gravel can be 2: 3, and the particle size is 5-8 mm; the volume of a mixture of roste and zeolite in the hypoxic region, the volume of the mixture of lack of oxygen-filled volcanic rock and zeolite The ratio is 1: 1, the particle size is 5-8mm; the anaerobic zone is filled with iron mine, the particle size is 5-8 mm, and the overall water capacity of the device is approximately 22.4...

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
sizeaaaaaaaaaa
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a device and a method for intensifying deep phosphorus and nitrogen removal by intervening weak electric energy into an artificial wetland based on pyrite filler. The nitrogen and phosphorus removal efficiency of the constructed wetland can be enhanced by moderate direct current, but local over-acidity or over-alkalinity is easily caused in cathode and anode areas. The direct current and the pyrite are respectively arranged in the aerobic area and the anaerobic area which are naturally formed due to different depths of the artificial wetland, the phosphorus removal effect of the constructed wetland is enhanced through the oxidation process of the pyrite, and the oxidation utilization rate of the pyrite is enhanced through the change of the oxygen concentration and pH influenced by the anode and the cathode, and thus the dephosphorization efficiency is further enhanced. Meanwhile, the pyrite can moderately maintain the pH stability of the cathode and anode areas, so that the microbial activity is ensured. According to the invention, the pyrite is properly arranged in the weak electric energy intervention constructed wetland, so that the phosphorus removal can be further improved, the denitrification effect can be enhanced, and local acidification and alkalization caused by direct current can be eliminated to a certain extent.

Description

Technical field [0001] The present invention belongs to the field of environmental technology and water treatment, and more particularly to a stable weak electrical energy of a thironom ore filler to intervene in artificial wetland pH and to strengthen depth of phosphorus and nitrogen. Background technique [0002] With the rapid development of the chemical industry, the pollution of water resources available in my country is getting more serious, and too little water resources will greatly limit human social activities. The annual chemical park sewage treatment plant produces a large number of tail water, these tail water contains nutrients such as nitrogen, phosphorus, and is directly discharged to natural water. The deepening of such tail water is expected to increase its water quality from the primary A standard to the surface V water standard or more, thereby reused the reuse of tail water, which avoids emitting too much nitrogen phosphorus, and relieves a certain extent Wat...

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): C02F3/00C02F3/30C02F3/32C02F101/10C02F101/16C02F101/30C02F101/38
CPCC02F3/32C02F3/301C02F3/302C02F3/308C02F3/006C02F3/005C02F2101/105C02F2101/16C02F2101/30C02F2101/38
Inventor 李中坚鲁靖杨彬武高明雷乐成
Owner QUZHOU RES INST OF ZHEJIANG 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