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

Anammox bacteria population holding carrier for treating waste water, anammox bacteria population adhesion body, and waste water treatment device using the adhesion body

An anammox bacteria and wastewater treatment technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of needing hydrogen donors and increasing aeration volume. , to achieve the effect of shortening the starting time

Active Publication Date: 2020-07-31
TOYO UNIV EDUCATIONAL FOUND +1
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using this reaction, there are technical problems such as the need for a hydrogen donor (addition of methanol) in the denitrification process, and the need to increase the amount of aeration in the nitrification process.

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
  • Anammox bacteria population holding carrier for treating waste water, anammox bacteria population adhesion body, and waste water treatment device using the adhesion body
  • Anammox bacteria population holding carrier for treating waste water, anammox bacteria population adhesion body, and waste water treatment device using the adhesion body
  • Anammox bacteria population holding carrier for treating waste water, anammox bacteria population adhesion body, and waste water treatment device using the adhesion body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] In this example 1, use figure 1 Wastewater treatment plant as shown. Such as figure 1As clearly stated, the wastewater treatment device has a reaction tank 1, and the reaction tank 1 has a wastewater treatment unit 4 for wastewater treatment and stores carbon particles (hereinafter, Sometimes referred to as the waste storage part 5 of waste). Thus, by providing the waste storage part 5, it can suppress that waste stagnates in the waste water treatment part 4, and the processing capability of the waste water treatment part 4 falls. In addition, the reaction tank 1 has a structure in which waste water is supplied from a waste water inflow part 2 and treated water flows out from a treated water outflow part 3 . In addition, in figure 1 Among them, 6 is the carbon particle to which the anammox bacterial group is attached (anammox bacterial group attachment body), 7 is the carbon particle after the anammox bacterial group falls off, and 9 is a mixer.

[0051] Among them...

Embodiment 2

[0082] In the same manner as in Example 1 above, the relationship between the zeta potential of the carrier (the zeta potential in the state where no bacteria are attached) and the anammox activity on the 90th day after the start of the experiment was investigated. show the result in Figure 4 . Among them, the zeta potential is adjusted by changing the particle size distribution of carbon particles. Such as Figure 4 As clearly stated, it was confirmed that the zeta potential should be -35 to 0 mV, preferably -30 to 0 mV, and more preferably -20 to 0 mV.

[0083] In addition, in the same manner as in Example 1 above, the relationship between the average particle size of graphite particles (carbon particles) and the anammox activity on the 90th day after the start of the experiment was investigated, and the results are shown in Figure 5 . Such as Figure 5 As is clear, it has been confirmed that the average particle diameter of the carbon particles is 2 to 1000 μm, prefe...

Embodiment 3

[0085] Graphite particles with an average particle diameter of 20 μm are bonded with PVA to make a carrier for maintaining anammox bacteria. except to Figure 6 Except for filling the carrier in the wastewater treatment device shown, the treatment operation was performed in the same manner as in the above-mentioned Example 1. exist Figure 6 , for those with figure 1 Components with the same function are marked with the same symbols. In addition, in Figure 6 Among them, 15 is the attachment of anammox bacteria group, and 17 is the separation part.

[0086] As a result of the experiment, a nitrogen removal rate of 1.25kg-N / m was achieved in one month 3 / day, on the 173rd day of operation (show photo at Figure 6 ) reaches the maximum nitrogen removal rate of 5.95kg-N / m 3 / day. From the above description, it was confirmed that even with the configuration of the present Example 3, it was possible to treat the anammox bacteria group at a high speed.

[0087] Among them, ...

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

To provide an anammox bacteria population holding carrier, an anammox population bacteria adhesion body, and a waste water treatment device which are capable of dramatically shortening a start periodfor obtaining a nitrogen removal rate of 1kg-N / m3 / day. An anammox bacteria population holding carrier according to the present invention is characterized by including carbon particles, wherein: the carbon particles are preferably graphite particles, in particular, isotropic graphite particles; a zeta-potential is preferably -35 mV to 0 mV; and the average particle size of the carbon particles is preferably 2 [mu]m to 1000 [mu]m.

Description

technical field [0001] The present invention relates to a carrier for maintaining anammox bacterial flora used in wastewater treatment, an anammox flora attachment, and a wastewater treatment device using the attachment. Background technique [0002] Nitrogen and phosphorus contained in domestic wastewater, industrial wastewater, and agricultural wastewater can cause eutrophication when they remain in closed waters in nature. Of the approximately 2,200 wastewater treatment plants that exist throughout Japan, approximately 100 of them fully perform nitrogen treatment (see Non-Patent Document 1 below). [0003] As methods for treating nitrogen contained in wastewater, there are catalytic decomposition methods, direct combustion methods, hypochlorous acid injection methods, biological decomposition methods, etc., especially for the decomposition of ammoniacal nitrogen at a level of 1 to 1000 ppm, considering cost, etc., Many biodegradation methods are used (Patent Document 1 b...

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): C02F3/10C02F3/00C02F3/34
CPCC02F3/34Y02W10/10C02F2003/003C02F3/307C02F3/106C02F3/303C02F3/301C02F2101/16
Inventor 角野立夫佐久间智士东城哲朗石川爱中园智哉竹下昌利
Owner TOYO UNIV EDUCATIONAL FOUND
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