Unlock instant, AI-driven research and patent intelligence for your innovation.

Denitrification treatment process for livestock and poultry breeding wastewater with high ammonia nitrogen and low carbon nitrogen ratio

A technology for livestock and poultry breeding wastewater and low carbon-to-nitrogen ratio, which is applied in the fields of animal husbandry wastewater treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., and can solve problems such as poor denitrification effect and achieve poor solution effect , Improve the effect of denitrification and reduce the effect of impact

Inactive Publication Date: 2020-07-31
JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the poor denitrification effect of livestock and poultry breeding wastewater with high ammonia nitrogen and low carbon nitrogen ratio, a denitrification treatment process for livestock and poultry breeding wastewater with high ammonia nitrogen and low carbon nitrogen ratio is provided. After removing most of the organic matter in the upflow anaerobic hydrolysis tank, short-range nitrification and anaerobic ammonium oxidation are carried out in sequence, and finally denitrification is carried out in the denitrification filter, which can improve the denitrification effect of livestock and poultry breeding 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
  • Denitrification treatment process for livestock and poultry breeding wastewater with high ammonia nitrogen and low carbon nitrogen ratio
  • Denitrification treatment process for livestock and poultry breeding wastewater with high ammonia nitrogen and low carbon nitrogen ratio

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments: take this as an example to further describe and illustrate this patent, and the implementation cases described here are only used to explain the present invention, and do not limit the invention.

[0036] The invention provides a process for denitrification of livestock and poultry breeding wastewater with high ammonia nitrogen and low carbon to nitrogen ratio, such as figure 1 shown, including the following steps:

[0037] S100. The waste water enters the regulating pool for uniform water volume and water quality. The regulating pool is equipped with a mixer, which can be a vertical mixer or other types of mixers; the regulating pool is a square pool body, and the hydraulic retention time is 1.5-2.5h;

[0038] S200. The effluent enters the anaerobic hydrolysis tank. The anaerobic hydrolysis tank is an upflow anaerobic hydrolysis tank. ...

Embodiment 2

[0051] The basic content of the present embodiment is the same as that of Example 1, and the difference is that the hydraulic retention time of the regulating tank is 1.5h; the hydraulic retention time of the anaerobic hydrolysis tank is 16h; L; the sedimentation time of the sedimentation tank is 3h; the hydraulic retention time of the anammox tank is 20h, and the density of the filler is 0.97g / cm 3 , The filler filling rate is 45%.

[0052] The test results show that the effect produced after parameter adjustment is similar to that of Example 1, basically the same as Example 1.

Embodiment 3

[0054] The basic content of this embodiment is the same as that of Example 1. The difference is that the hydraulic retention time of the regulating tank is 2.5h, the hydraulic retention time of the anaerobic hydrolysis tank is 18h, the hydraulic retention time of the nitrosation tank is 14h, and DO is 0.8mg / L, the sedimentation time of the sedimentation tank is 4h, the hydraulic retention time of the anammox tank is 24h, and the density of the filler is 1.0g / cm 3 , The filler filling rate is 50%.

[0055] The test results show that the effect produced after parameter adjustment is similar to that of Example 1, basically the same as that of Example 1.

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
Diameteraaaaaaaaaa
Densityaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of biological sewage treatment, and particularly relates to a denitrification treatment process for livestock and poultry breeding wastewater with high ammonia nitrogen and low carbon nitrogen ratio. The method comprises the following steps: homogenizing water quality and water quantity of wastewater through a regulating tank, removing most of organic matters through an up-flow anaerobic hydrolysis tank, sequentially carrying out short-cut nitrification reaction and anaerobic ammonia oxidation, and finally carrying out denitrification reaction in adenitrification filter tank. The up-flow anaerobic hydrolysis tank can remarkably reduce the content of organic matters and reduce the influence of the organic matters on anaerobic ammonia oxidation reaction; short-cut nitrification reaction and anaerobic ammonia oxidation are combined, and a large amount of nitrite nitrogen and ammonia nitrogen in a water body can be removed, finally, residual organic matters in the wastewater and a small amount of nitrate nitrogen generated by anaerobic ammonia oxidation reaction are removed through denitrification, meanwhile, the concentration of effluent suspended matters can be reduced, and the problem of poor denitrification effect of a traditional process is solved.

Description

technical field [0001] The invention belongs to the technical field of biological sewage treatment and specifically provides a denitrification treatment process for livestock and poultry breeding wastewater with high ammonia nitrogen and low carbon to nitrogen ratio. Background technique [0002] The livestock and poultry breeding industry is currently one of the main pillar industries of my country's rural economy. The modern livestock and poultry breeding industry has gradually developed along with the progress of urbanization, which has changed the previous mode of decentralized farm livestock and poultry breeding, and gradually transformed into an intensive farm-based production mode. Although the change in breeding methods has enabled the rapid and high-quality development of the livestock and poultry breeding industry in cities in my country, it has also brought many environmental problems. According to our institute's research on the livestock and poultry breeding in...

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
IPC IPC(8): C02F3/30C02F103/20
CPCC02F3/302C02F3/307C02F2103/20
Inventor 周亮白永刚涂勇张龙张耀辉刘伟京
Owner JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com