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

Active sludge-membrane capacitive comprehensive treatment device and process for treating high-salt wastewater from halotolerant bacteria

A technology for activated sludge and high-salt wastewater, applied in water pollutants, sedimentation treatment, water/sewage treatment, etc., can solve problems such as microbial poisoning, and achieve the effects of low cost, improved treatment efficiency, and good control effect.

Inactive Publication Date: 2017-12-29
HOHAI UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the prior art that the high salt concentration in high-salt wastewater has inhibitory and toxic effects on microorganisms, the present invention provides an activated sludge-membrane capacitor comprehensive treatment device and process for treating high-salt wastewater using salt-tolerant bacteria. Cultivate a microorganism with high tolerance to salt concentration and put it into the traditional activated sludge treatment system, which can improve its treatment efficiency, and then further desalinize through membrane capacitive deionization technology to reduce the salt content

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
  • Active sludge-membrane capacitive comprehensive treatment device and process for treating high-salt wastewater from halotolerant bacteria

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An activated sludge-membrane capacitance comprehensive treatment process for treating high-salt wastewater by using salt-tolerant bacteria, comprising the following steps:

[0026] S1. Screening and cultivating microorganisms: screening and cultivating salt-tolerant bacteria with high tolerance to salt concentration; in the step S1, the salt-tolerant bacteria are modified by changing the traditional microorganism screening method, and cultivating microorganisms in media with different salt concentration gradients. Salt-tolerant bacteria with high tolerance to salt concentration are obtained through purification and isolation. The salt-tolerant bacteria cultivated in high-salinity medium have high tolerance to salinity and grow at higher salinity; Configure different salt concentration gradients of 1g / L, 2g / L, and 3g / L to cultivate microorganisms, and obtain microorganisms that can grow normally under high salinity-salt-tolerant bacteria;

[0027] S2. Activated sludge tr...

Embodiment 2

[0030] An activated sludge-membrane capacitance comprehensive treatment process for treating high-salt wastewater by using salt-tolerant bacteria, comprising the following steps:

[0031] S1. Screening and cultivating microorganisms: screening and cultivating salt-tolerant bacteria with high tolerance to salt concentration; in the step S1, by changing the traditional microorganism screening method, the salt-tolerant bacteria are cultivated in culture media with different salt concentration gradients, Salt-tolerant bacteria with high tolerance to salt concentration are obtained through purification and isolation. The salt-tolerant bacteria cultivated in high-salinity medium have higher tolerance to salinity and grow at higher salinity; Configure different salt concentration gradients of 1g / L, 2g / L, and 3g / L to cultivate microorganisms, and obtain microorganisms that can grow normally under high salinity-salt-tolerant bacteria;

[0032]S2. Activated sludge treatment method: Put ...

Embodiment 3

[0035] An activated sludge-membrane capacitance comprehensive treatment process for treating high-salt wastewater by using salt-tolerant bacteria, comprising the following steps:

[0036] S1. Screening and cultivating microorganisms: screening and cultivating salt-tolerant bacteria with high tolerance to salt concentration; in the step S1, by changing the traditional microorganism screening method, the salt-tolerant bacteria are cultivated in culture media with different salt concentration gradients, Salt-tolerant bacteria with high tolerance to salt concentration are obtained through purification and isolation. The salt-tolerant bacteria cultivated in high-salinity medium have higher tolerance to salinity and grow at higher salinity; Configure different salt concentration gradients of 1g / L, 2g / L, and 3g / L to cultivate microorganisms, and obtain microorganisms that can grow normally under high salinity-salt-tolerant bacteria;

[0037] S2. Activated sludge treatment method: Put...

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
Initial conductivityaaaaaaaaaa
Conductivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an active sludge-membrane capacitive comprehensive treatment device and process for treating high-salt wastewater from halotolerant bacteria. The treatment process comprises the following steps: screening and cultivating of microorganisms, an active sludge treatment method and a membrane capacitive deionization method. According to the treatment process disclosed by the invention, the active sludge treatment method is combined with the membrane capacitive treatment method, and high salinity in wastewater has inhibiting and poisoning influences on microorganisms and a membrane capacitive assembly, so that treatment efficiency of the active sludge method is greatly affected; and a strain with relatively high tolerance to high salinity is screened out and is added into an active sludge treatment system, so that treatment efficiency is improved. Wastewater pretreated by the active sludge treatment method enters a membrane capacitive deionization system for being subjected to further desalination treatment. Halotolerant bacteria are added to improve treatment efficiency of the active sludge treatment method, and are combined with a membrane capacitive deionization system, so that desalination efficiency is further improved, and energy consumption and the cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to an activated sludge-membrane capacitance comprehensive treatment device and process for treating high-salt wastewater by using salt-tolerant bacteria. Background technique [0002] High-salt wastewater refers to wastewater with a total salt content of at least 1%. It mainly comes from chemical plants and oil and natural gas collection and processing. This wastewater contains a variety of substances (including, salt oil, organic heavy metals and radioactive substances). Salt wastewater is produced in a wide range of ways, and the amount of water is increasing year by year. The environmental impact of removing organic pollutants in saline wastewater is crucial. The use of physical and chemical treatment requires large investment and high operating costs, and it is difficult to achieve the expected purification effect. The use of biological methods to treat such wastewate...

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): C02F9/14C02F101/20C02F101/30
CPCC02F1/4691C02F3/12C02F3/34C02F9/00C02F2001/007C02F2101/20C02F2101/30
Inventor 陈琳王成燚胡勤政
Owner HOHAI UNIV
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