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

Aerobic and salt-tolerant denitrifying bacteria internal circulation film-hanging method and denitrification reactor

A technology of denitrifying bacteria and film hanging method, which is applied in the field of water treatment, can solve the problems of low impact load, long time for biofilm, poor adhesion, etc., and achieves the effects of improving the fixation amount, easy operation and simple method.

Active Publication Date: 2019-11-22
BLUESTAR LEHIGH ENG INST CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for aerobic and salt-tolerant denitrifying bacteria to form a film in an internal circulation for the defects of biofilm such as long duration, poor adhesion, complicated operation, low biomass, and low impact load resistance.

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
  • Aerobic and salt-tolerant denitrifying bacteria internal circulation film-hanging method and denitrification reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1, a kind of internal circulation type denitrification reactor:

[0032] refer to figure 1 , refer to figure 1 , including the reactor body 1, the reactor body 1 is provided with a deflector 5 to longitudinally divide it into three spaces, which are respectively the water inlet area, the biological filler and the water outlet area, and the upper part of the water inlet area is connected with the water inlet pipeline 2 , the upper part of the water outlet area is connected with the water outlet pipeline 3, and a biological filler 8 is arranged in the biological filler area;

[0033] An aeration head 6 is provided at the bottom of the reactor body 1, and the aeration head 6 is connected with an aeration pipeline 7 leading into the reactor body 1; the aeration pipeline 7 is connected with an aeration device;

[0034] A denitrification sludge return pipeline 4 leading to the top of the reactor body 1 is also connected to the bottom of the reactor body 1 .

Embodiment 2

[0035] Example 2, the internal circulation denitrification reactor described in Example 1: the upper part of the reactor body 1 is cylindrical, and the lower part is conical.

Embodiment 3

[0036] Embodiment 3, a method for film-forming of aerobic and salt-tolerant denitrifying bacteria in internal circulation: using the internal circulation denitrification reactor described in Embodiment 1 or 2 to realize rapid film-forming of aerobic and salt-tolerant denitrifying bacteria; Including the following process steps:

[0037] (1) Filling with biological filler: first add biological filler into the denitrification reactor, and the filling volume is 60% of the effective volume of the reactor;

[0038] (2) Bacteria inoculation: After inoculating 5000 mg / L aerobic and salt-tolerant denitrification bacteria into the denitrification reactor, expose for 12 hours;

[0039] (3) Filming in the reactor: when there is no sludge loss in the reactor, the aeration device is turned on, artificially simulated wastewater is used to start continuous water inflow, and the temperature and dissolved oxygen of the reactor are controlled. The initial mixed concentration of nitrate and nitr...

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 provides an inner circulation type denitrifying reactor. The inner circulation type denitrifying reactor comprises a reactor body, wherein the reactor body is internally provided with flow guide plates for longitudinally separating the reactor body into three spaces, namely a water inlet region, a biological packing region and a water outlet region; the biological packing region is internally provided with biological packing; an aeration head is arranged at the lower part of the reactor body; a denitrifying sludge reflowing pipeline, communicated to the top of the reactor body, is further connected and arranged at the bottom of the reactor body. The invention further discloses an inner circulation film formation method of aerobic and salt-resisting denitrifying bacteria. By adopting the inner circulation type denitrifying reactor provided by the invention, rapid film formation of the aerobic and salt-resisting denitrifying bacteria is realized. With the adoption of the method, the problems that the content of nitrate and nitrite of rear-end output water of a biological denitrifying system is high and the content of total nitrogen does not reach the standard and the like can be completely solved; and meanwhile, the method is simple and easy to operate and has a relatively short implementation period and engineering-oriented implementation can be directly carried out.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to an internal circulation membrane-hanging method for aerobic and salt-tolerant denitrifying bacteria. The invention also discloses an internal circulation denitrification reactor used in the method. Background technique [0002] High-salt wastewater generally refers to wastewater with a total salt content of at least 1%. In many industrial practices such as seawater substitution, the salt content is sometimes as high as 15-30%. At present, the production channels and output of high-salt wastewater are increasing. The amount of wastewater is increasing year by year at an annual growth rate of 3%. If high-salt wastewater cannot be discharged up to the standard, it will pollute the surface, soil, coastal areas and estuaries, causing various environmental and ecological problems such as eutrophication. In the research on the biological denitrification performance o...

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): C02F3/02C02F3/10C02F3/34C02F101/16
CPCC02F3/02C02F3/10C02F3/106C02F3/109C02F3/34C02F2101/163C02F2101/166C02F2203/004C02F2203/006C02F2209/02C02F2209/22C02F2301/046C02F2305/06Y02W10/10
Inventor 张彬彬田凤蓉崔庆兰李坤王强郭涛杨志林董自斌
Owner BLUESTAR LEHIGH ENG INST 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