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

Magnetic biochemical system and method suitable for treatment of flown-back shale gas fracturing fluid

A technology of biochemical system and flowback liquid, which is applied in the direction of chemical instruments and methods, biological treatment devices, sustainable biological treatment, etc., can solve the problems of unstable treatment effect, large fluctuation of effluent water quality, high investment in oxidation equipment, and reduce labor Labor intensity, accelerated sludge settling, and the effect of slowing down membrane fouling

Pending Publication Date: 2021-03-23
CHINA PETROLEUM ENG & CONSTR +3
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the advanced oxidation method used to treat shale gas flowback fluid under high-salt system, not only the investment and operation cost of oxidation equipment are high, but also the treatment effect is unstable, and the effluent quality fluctuates greatly
The biochemical oxidation method has the advantages of low equipment investment and low operating cost, but it is difficult for conventional microorganisms to survive in high-salt systems

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
  • Magnetic biochemical system and method suitable for treatment of flown-back shale gas fracturing fluid
  • Magnetic biochemical system and method suitable for treatment of flown-back shale gas fracturing fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] like figure 1 As shown in the figure, a magnetic biochemical system suitable for shale gas fracturing flowback treatment in this embodiment includes a wastewater conditioning tank 1, and the wastewater conditioning tank 1 is sequentially connected with an anoxic tank 2 and an aerobic aeration tank through pipes. 3 and the MBR membrane pool 4; also include a bacterial strain activation device 5 for activating salt-tolerant bacteria, and the bacterial strain activation device 5 is connected with the anoxic pool 2 through a pipeline; the aerobic aeration pool 3 and the MBR membrane pool 4 are both cast in Add Fe 3 O 4 powder. The MBR membrane tank 4 is equipped with a flexible flat membrane, and the membrane material is PVDF.

[0034] Among them, the salt-tolerant bacteria belong to aerobic denitrifying bacteria and belong to the genus Bacillus purgationiresistens. The salt-tolerant bacteria used in the present invention are screened from shale gas pressure return liqui...

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
Login to View More

Abstract

The invention belongs to the technical field of industrial wastewater treatment, and particularly relates to a magnetic biochemical system and method suitable for treatment of a flown-back shale gas fracturing fluid. According to a technical scheme in the invention, the magnetic biochemical system comprises: a wastewater adjusting tank, wherein the wastewater adjusting tank is sequentially connected with an anoxic tank, an aerobic aeration tank and an MBR membrane tank through pipelines; and a strain activation device, which is used for activating halotolerant bacteria and is connected with the anoxic tank through a pipeline, wherein Fe3O4 powder is added into the aerobic aeration tank and the MBR membrane tank. The magnetic biochemical system and method suitable for for treatment of the flown-back shale gas fracturing fluid provided by the invention can improve microbial activity and population abundance.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a magnetic biochemical system and method suitable for the treatment of shale gas fracturing flowback fluid. Background technique [0002] A large amount of high-salt organic wastewater containing suspended solids, grease, heavy metals and complex organic matter will be produced in the process of shale gas exploitation. The water quality index of the produced water fluctuates widely in the mining stage. Generally, the salt content of the shale gas flowback fluid is 2-6%, the CODcr is 500-1500 mg / L, and the ammonia nitrogen content is 50-300 mg / L. If the wastewater directly enters the river channel or penetrates into the formation, the main water quality indicators in the water body, such as organic matter, suspended solids, ammonia nitrogen, etc., will exceed the standard. [0003] According to the requirements of the Class I discharge standard...

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): C02F3/30C02F3/12C02F101/16C02F101/30
CPCC02F3/302C02F3/1268C02F2101/16C02F2101/30C02F2203/006Y02W10/10
Inventor 张永红于建国郭成华宋兴福汤晓勇金艳何化韩昫身连伟李丽瞿冯斌周宁肖芳赵琼周波
Owner CHINA PETROLEUM ENG & CONSTR
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