Device and method for realizing deep denitrification of domestic sewage by main-flow internal-source short-range denitrification/anaerobic ammoxidation technology

A short-range denitrification and anaerobic ammonia oxidation technology, applied in the field of low C/N ratio urban sewage treatment, can solve the problems of insufficient carbon source, difficult to treat sewage, low carbon and nitrogen ratio, etc., and achieve simple operation control, economical and efficient. The effect of denitrification and saving carbon source demand

Active Publication Date: 2017-11-24
BEIJING UNIV OF TECH
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's urban sewage has a low carbon-to-nitrogen ratio (C / N) and a serious shortage of carbon sources, which makes it difficult for the traditional biological denitrification process to treat the sewage up to standard

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 realizing deep denitrification of domestic sewage by main-flow internal-source short-range denitrification/anaerobic ammoxidation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail: as figure 1 As shown, a mainstream endogenous short-range denitrification / ANAMMOX process to achieve deep denitrification of domestic sewage device: including urban sewage raw water tank (1), endogenous short-range denitrification reactor (2), intermediate water tank I ( 3), nitrification reactor (4), intermediate water tank II (5), anaerobic ammonium oxidation reactor (6); it is characterized in that, the urban sewage raw water tank (1) is connected with the internal source through the inlet pump I (2.1) The short-range denitrification reactor (2) is connected; the internal source short-range denitrification reactor (2) is connected to the nitrification reactor (4) through the inlet pump II (4.1); the nitrification reactor (4) is connected through the drain valve III (4.2) Connect the intermediate water tank I (3); the intermediate water tank I (3) i...

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 device and a method for realizing deep denitrification of domestic sewage by a main-flow internal-source short-range denitrification / anaerobic ammoxidation technology. The device comprises a municipal sewage raw water tank, an internal-source short-range denitrification reactor, an intermediate water tank I, a nitrification reactor, an intermediate water tank II and an anaerobic ammoxidation reactor. The method comprises the steps that municipal sewage enters the internal-source short-range denitrification reactor; a microorganism absorbs an organic matter in raw water to be converted into PHAs (polyhydroxyalkanoates); the sewage enters the nitrification reactor for full-range nitrification; the nitrified sewage enters the internal-source short-range denitrification reactor again to realize conversion from nitrate nitrogen to nitrite nitrogen; and then the sewage enters the anaerobic ammoxidation reactor to realize autotrophic deep denitrification. The method can stably realize main-flow anaerobic ammoxidation of the municipal sewage with a low C / N ratio; no external carbon source is required; the aeration amount is saved; the sludge yield is low; operation control is simple; and high-efficiency and low-energy municipal sewage treatment is realized.

Description

Technical field: [0001] The invention relates to a device and method for realizing deep denitrification of domestic sewage by a mainstream endogenous short-range denitrification / anammox process, and belongs to the technical field of low C / N ratio urban sewage treatment. Background technique: [0002] Sewage denitrification treatment is extremely important to protect water resources, but strict discharge standards mean excessive energy consumption. Therefore, economical and effective biological denitrification process has been widely studied and applied. my country's urban sewage has a low carbon-to-nitrogen ratio (C / N) and a serious shortage of carbon sources, making it difficult for traditional biological denitrification processes to treat the sewage up to standard. However, the anammox technology does not require carbon sources to achieve efficient nitrogen removal, reduces the demand for carbon sources and energy, and has low sludge production, so it has become a hot res...

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): C02F3/30C02F3/34C02F101/16
CPCC02F3/302C02F3/34C02F2101/16C02F2203/006
Inventor 彭永臻吉建涛买文可吴蕾
Owner BEIJING UNIV OF TECH
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