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

Plasma denitrification device and use method thereof

A plasma and denitrification technology, applied in chemical instruments and methods, dehydration/drying/thickened sludge treatment, water treatment parameter control, etc. High cost and other problems, to achieve the effect of inhibiting algae growth, occupying a small area, and controlling parameters

Pending Publication Date: 2018-11-30
DAYUAN ENVIRONMENTAL TECH XIAMEN CO LTD
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deep denitrification devices in the prior art are biological aerated filter and denitrification deep bed filter. When these devices are in operation, they need an external carbon source, continuous aeration and backwashing, high operating costs, high construction costs and occupying The land area is large; in addition, the above method uses microbial nitrogen removal method, which has strict requirements on working conditions and water quality, and the control parameters and process are complicated

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
  • Plasma denitrification device and use method thereof
  • Plasma denitrification device and use method thereof
  • Plasma denitrification device and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Example of denitrification of a polluted water body, after the water body is treated in sections, each section of water body is 10000m 3 , the length of the water body is 2000m; check the main pollution sources of the water body in the section or area, find out the main pollution sources, intercept and pipe the main pollution sources into the sump, and at the same time take water from the downstream of the water body into the sump, and use a lift pump Take the water pump from the sump to the plasma generator 110; the working conditions of the plasma generator 110 are: pulse voltage 20KV, current density 8mA / cm2 , frequency 40KHz, the residence time in the water body plasma machine 100 is 8s, the water body after the plasma treatment flows into the denitrification pond 200 and carries out denitrification treatment, removes ammonia nitrogen and total nitrogen, and the residence time of the water body in the denitrification pond 200 is 25min, The denitrified water is input ...

Embodiment 2

[0095] Example of denitrification of a polluted water body, after the water body is treated in stages, each section of water body is 20000m 3 , water area 100000m 2 ; Check the main pollution sources of the water body in the section or area, find out the main pollution sources, intercept and pipe the main pollution sources into the sump, and at the same time draw water from the downstream of the water body into the sump, and use a lift pump to take it from the sump The water is pumped into the plasma generator 110; the working conditions of the plasma generator 110 are: pulse voltage 0.3KV, current density 10mA / cm 2 , frequency 80KHz, the residence time in the water body plasma machine 100 is 10s, the water body after the plasma treatment flows into the denitrification pond 200 and carries out denitrification treatment, removes ammonia nitrogen and total nitrogen, and the residence time of the water body in the denitrification pond 200 is 20min, The denitrified water is input...

Embodiment 3

[0100] In the embodiment of denitrification of a polluted water body, the sewage is input into the plasma generator 110; the working conditions of the plasma generator 110 are: pulse voltage 50KV, current density 1mA / cm 2 , frequency 80KHz, the residence time in the water body plasma machine 100 is 10s, the water body after the plasma treatment flows into the denitrification pond 200 and carries out denitrification treatment, removes ammonia nitrogen and total nitrogen, and the residence time of the water body in the denitrification pond 200 is 30min, The denitrified water is input into the upstream of the water body, and re-enters the plasma generator 110. After two cycles, the polluted water body is purified to meet the "Environmental Quality Standard for Surface Water" GB3838-2002. The water quality indicators before and after denitrification of the water body are shown in Table 3.

[0101] Table 3. Water quality indicators of a sewage body before and after denitrification ...

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 discloses a plasma denitrification device. The device comprises a plasma machine and a denitrification tank. The plasma machine comprises a plasma generator and a pulse power source. Theplasma generator comprises at least one set of electrodes for generating plasma. An inlet of the plasma generator is used for sewage inlet. The denitrification tank comprises a casing and a denitrification zone, a water purification zone and a sludge collection zone in the casing. The side wall of the denitrification zone is provided with a water inlet. The side of the water purification zone isprovided with a water outlet. A water distributor is arranged in the denitrification zone and is used for uniformly distributing sewage in the denitrification zone. An input port of the water distributor is communicated with an outlet of the plasma generator through the water inlet. An output port of the water distributor is arranged at the bottom of the denitrification zone. The plasma denitrification device can efficiently remove total nitrogen and ammonia nitrogen in the polluted water, can assist to purify COD, BOD, total phosphorus and chromaticity in the water and can increase the dissolved oxygen concentration of the water.

Description

technical field [0001] The invention relates to the technical field of water body purification, in particular to a plasma denitrification device and a use method thereof. Background technique [0002] Polluted water bodies (water sources) refer to water bodies polluted by organic matter, ammonia nitrogen, phosphorus, microorganisms, viruses, etc., some of which do not meet the environmental quality standards for surface water (GB3828-2002). The purification methods of polluted water mainly include physical, chemical and biological methods. However, it is difficult to completely purify various pollutants in the water body using any of the above methods. In order to enhance the removal effect of water pollutants, two or more methods are often used in combination, among which the mainstream sewage treatment methods and devices are biochemical methods and biochemical treatment devices. However, these devices have the disadvantages of high investment cost and large footprint. ...

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): C02F9/08C02F11/12C02F101/16
CPCC02F9/00C02F11/12C02F1/24C02F1/30C02F1/001C02F2001/007C02F2101/16C02F1/4608C02F2209/005C02F2201/46175C02F2101/163C02F2101/166C02F2209/03C02F2209/05C02F2209/02C02F2209/06C02F2209/29C02F2209/30C02F1/705C02F2305/08C02F1/006C02F2305/023C02F1/004C02F1/008C02F1/70C02F2209/006
Inventor 吴以伯闫承凯
Owner DAYUAN ENVIRONMENTAL TECH XIAMEN CO LTD
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