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

Method for treating wastewater by using carrier fluidized biomembrane reactor

A biofilm reactor and wastewater treatment technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the unfavorable operation and management of activated sludge method with suspended solids content, etc. Problems, to achieve excellent wastewater treatment effect, high degree of automation control, and improve the effect of sedimentation performance

Active Publication Date: 2016-06-01
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the defects in the conventional carrier fluidized biofilm reactor in the prior art that the content of suspended solids is still high after sedimentation treatment, and that the activated sludge method is not conducive to operation and management, and to provide a method that utilizes A method for treating wastewater with a carrier fluidized biofilm reactor. This method not only overcomes the shortcomings of conventional carrier fluidized biofilm reactors that still have a high content of suspended solids after sedimentation treatment, but also has the advantages of fast film formation and anti-fouling. Strong impact ability, good treatment effect, convenient operation and management, etc.

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
  • Method for treating wastewater by using carrier fluidized biomembrane reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This example is used to illustrate the method for treating wastewater using a carrier fluidized biofilm reactor of the present invention.

[0045] The basic situation of the wastewater to be treated (in actual production, the wastewater treatment process is a dynamic treatment process, and the indicators of the wastewater are usually within a certain range): COD is 500-600mg / L, BOD is 180-350mg / L, ammonia nitrogen 20-35mg / L, the oil content is 15-30mg / L, and the suspended matter content is 100-200mg / L.

[0046] Place a columnar suspended carrier with a diameter of 2.5cm, a thickness of 0.8cm, and a specific gravity of 0.98 in the biochemical reaction tank. In terms of cumulative volume, the filling rate of the columnar suspended carrier in the biochemical reaction tank is 35%, and a perforation is installed at the bottom of the biochemical reaction tank. Tube aeration system, the aforementioned wastewater to be treated is passed into the biochemical reaction tank for tr...

Embodiment 2

[0049] This example is used to illustrate the method for treating wastewater using a carrier fluidized biofilm reactor of the present invention.

[0050] The basic situation of the wastewater to be treated (in actual production, the wastewater treatment process is a dynamic treatment process, and the indicators of the wastewater are usually within a certain range): COD is 500-600mg / L, BOD is 180-350mg / L, ammonia nitrogen 20-35mg / L, the oil content is 15-30mg / L, and the suspended matter content is 100-200mg / L.

[0051] Place a spherical suspended carrier with a diameter of 2.5 cm and a specific gravity of 0.98 in the biochemical reaction tank. In terms of bulk volume, the filling rate of the spherical suspended carrier in the biochemical reaction tank is 25%, and a perforated tube aeration system is installed at the bottom of the biochemical reaction tank , the aforementioned wastewater to be treated is passed into the biochemical reaction tank for treatment, and the COD load o...

Embodiment 3

[0054] This example is used to illustrate the method for treating wastewater using a carrier fluidized biofilm reactor of the present invention.

[0055] The basic situation of the wastewater to be treated (in actual production, the wastewater treatment process is a dynamic treatment process, and the indicators of the wastewater are usually within a certain range): COD is 500-600mg / L, BOD is 180-350mg / L, ammonia nitrogen 20-35mg / L, the oil content is 15-30mg / L, and the suspended matter content is 100-200mg / L.

[0056] Place a columnar suspension carrier with a diameter of 2.5cm, a thickness of 0.8cm, and a specific gravity of 0.98 in the biochemical reaction tank. In terms of cumulative volume, the filling rate of the columnar suspension carrier in the biochemical reaction tank is 45%, and a perforation is installed at the bottom of the biochemical reaction tank. Pipe aeration system, the aforementioned wastewater to be treated is passed into the biochemical reaction tank for ...

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 size (mesh)aaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for treating wastewater by using a carrier fluidized biomembrane reactor. The method comprises the following steps: sequentially treating wastewater to be treated in a biochemical reaction tank, a mixing tank and a precipitation tank, discharging a supernatant in the precipitation tank, and returning at least parts of sludge at the bottom of the precipitation tank to the biochemical reaction tank, wherein active carbon is added to water discharged from the biochemical reaction tank, and the active carbon and the discharged water are uniformly mixed in the mixing tank. The method can effectively reduce the content of suspensions in water finally obtained after treatment, and also has the advantages of excellent wastewater treatment effect, fast biomembrane formation speed, strong impact resistance, good treatment effect, and convenient running and management.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a method for treating waste water using a carrier fluidized biofilm reactor. Background technique [0002] The carrier fluidized biofilm reactor is a biofilm wastewater biochemical treatment device for wastewater treatment, that is, a certain amount of specific gravity is filled in the biological oxidation reaction tank (the specific gravity is the ratio of the density of the biofilm suspension carrier to the density of water) ) close to 1 of the biofilm suspension carrier, using the biofilm grown on the suspension carrier and sufficient oxygen supply, through biological oxidation, the pollutants in the wastewater are oxidized and decomposed to achieve the purpose of wastewater purification. The carrier fluidized biofilm biochemical treatment process has the advantages of the general biofilm method, that is, it has the characteristics of high efficiency and energy saving, sma...

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): C02F9/14
Inventor 桑军强
Owner CHINA PETROLEUM & CHEM CORP
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