Nitrospira granular sludge culture method and device

A technology of granular sludge and Nitrospira, applied in the field of water treatment, can solve the problems of low concentration of volatile suspended solids in the mixed liquid, deviation from the actual application, and accumulation of nitrite, so as to achieve obvious separation effect of mud and water and avoid sludge The effect of short time period of loss and settlement

Inactive Publication Date: 2019-07-26
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned problems existing in the prior art, the main purpose of the present invention is to provide a method and device for cultivating Nitrospira granular sludge, aiming at treating industrial wastewater with high nitrite concentration and solving the problems caused by incomplete denitrification. The problem of nitrite accumul

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
  • Nitrospira granular sludge culture method and device
  • Nitrospira granular sludge culture method and device
  • Nitrospira granular sludge culture method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without cre...

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 relates to a nitrospira granular sludge culture method and device. The culture method includes inoculating flocculent activated sludge into an SBR reactor for enrichment culture; operating the SBR reactor in a sequencing batch mode; feeding water into the SBR reactor through a water inlet tank; starting aeration and stirring at the same time after the water feeding is completed; controlling the water temperature in the SBR reactor to be between 29-31 DEG C and the sludge age to be 20 days; and after enrichment culture for 90-100 days, converting the flocculent activated sludge inoculated in the SBR reactor into brown nitrospira granular sludge. The method solves the problems of deviation from actual application conditions, lower concentration of volatile suspended solids in the mixed solution and higher energy consumption in the existing nitrospira granular sludge culture method, and has the characteristics of higher treatment efficiency and simple operation and management.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a method and device for cultivating nitrospira granular sludge. Background technique [0002] Nitrite is a toxic substance. For the human body, nitrite will combine with iron hemoprotein in the blood, oxidize hemosiderin into methemoprotein, cause red blood cells to lose the ability to transport oxygen, and the human body will experience tissue hypoxia symptoms. , In addition, nitrite will also combine with ammonia nitrogen in the stomach to form nitroso or other compounds, which have carcinogenic effects; for water bodies, on the one hand, the degradation of nitrite will consume oxygen in the water, which is beneficial to the eutrophication of the water body, and on the other hand On the one hand, nitrite will also have a certain harmful effect on the growth of animals and plants in the water body. [0003] Nitrite exists widely in wastewater from many industries, and t...

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): C02F3/12C02F3/34
CPCC02F3/1263C02F3/34C02F2203/004C02F2305/06Y02W10/10
Inventor 付昆明廖敏辉杨宗玥仇付国
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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