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

An integrated reactor and denitrification method for pre-denitrative autotrophic biological denitrification

A technology of autotrophic biological denitrification and pre-denitrification, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., to achieve less control conditions, promote sludge granulation, control The effect of simple and easy conditions

Active Publication Date: 2019-05-03
SUZHOU UNIV OF SCI & TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional denitrification devices require a large amount of organic matter to achieve nitrate removal.

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
  • An integrated reactor and denitrification method for pre-denitrative autotrophic biological denitrification
  • An integrated reactor and denitrification method for pre-denitrative autotrophic biological denitrification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Below in conjunction with the examples, the specific implementation of the present invention will be further described in detail.

[0044] The definition of semi-denitrification mentioned in this paper is the process of converting nitrate to nitrite during the autotrophic biological denitrification process of high ammonia nitrogen wastewater.

[0045] The integrated reactor for pre-denitrative autotrophic biological denitrification of the present invention comprises an aerobic zone 3, an anaerobic zone 5, an anoxic zone 2 and an airlift device.

[0046] Described aerobic zone 3 comprises the reaction zone 14 of bottom and the gas collection chamber 4 that top is formed by aeration tail gas, and the bottom of reaction zone 14 is provided with aeration device 8, and aeration device 8 is connected with blower fan (in the figure) by inlet pipe 12 not shown) connection, acclimation or inoculation in the aerobic zone 3 for nitrosating nitrosifying bacteria and suspension adso...

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 an integrated reactor and a denitrification method for pre-denitrification complete autotrophic biological denitrification, which belongs to the technical field of wastewater biological treatment and denitrification. The reactor includes an aerobic zone (3) and an anaerobic zone ( 5), air lift device and anoxic zone (2); the anoxic zone (2) is located outside the aerobic zone (3), and the anoxic zone (2) is connected to the aerobic zone (3); the anoxic zone (2) is connected to the aerobic zone (3); The upper part of the oxygen zone (2) is provided with a water inlet (1), and the water inlet (1) is connected to a water pump; both ends of the guide tube (10) are connected to the anoxic zone (2) and the sedimentation zone (7) respectively. , one end of the air guide tube (11) is connected with the gas collecting chamber (4), and the other end extends into the air guide tube (10) and is located at one end of the hypoxic zone (2). The reactor and denitrification method create an environment conducive to the growth of denitrifying bacteria, nitrosifying bacteria and anaerobic ammonium oxidizing bacteria, achieving complete autotrophic biological denitrification.

Description

technical field [0001] The invention belongs to the technical field of wastewater biological treatment denitrification, and in particular relates to an integrated reactor and a denitrification method for pre-denitrification autotrophic biological denitrification. Background technique [0002] In recent years, as a new type of biological denitrification technology, anaerobic ammonium oxidation has been favored by many researchers because of its high denitrification performance, no need for organic matter participation, and low treatment cost. Anaerobic ammonium oxidation refers to the process in which anammox bacteria use ammonia nitrogen as an electron donor and nitrous nitrogen as an electron acceptor to perform a biological reaction under anaerobic conditions, and convert it into nitrogen gas. Nitrosation is the process by which aerobic nitrosating bacteria use molecular oxygen to convert ammonia nitrogen into nitrite nitrogen. Through the adjustment of the control parame...

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 Patents(China)
IPC IPC(8): C02F3/30
CPCC02F3/301C02F3/302Y02W10/10
Inventor 黄勇李祥袁怡李勇潘杨李大鹏李学艳
Owner SUZHOU UNIV OF SCI & TECH
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