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

System and method for biological treatment of high-salt high-organic matter industrial wastewater

A technology for industrial wastewater and biological treatment, applied in the direction of biological treatment devices, sustainable biological treatment, biological water/sewage treatment, etc. The effect of manpower investment, good treatment and stable water quality

Active Publication Date: 2019-11-15
重庆大学科技企业(集团)有限责任公司 +2
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional biological treatment methods are difficult to treat high-salinity wastewater, and high organic matter makes membrane technology unsuitable for direct treatment of industrial wastewater

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
  • System and method for biological treatment of high-salt high-organic matter industrial wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A biological treatment system for high-salt and high-organic industrial wastewater is characterized in that it mainly includes an internal circulation aerobic granular sludge reactor, an integrated aerobic granular sludge membrane bioreactor, and a piping system.

[0042] The height-to-diameter ratio of the outer cylinder of the internal circulation aerobic granular sludge reactor is 4-12. . The bottom of the internal circulation aerobic granular sludge reactor is connected to the water inlet pipe I18, the aeration pipe I11 and the sludge outlet pipe 13. The water inlet pipe I18 is used to pump waste water through the water inlet pump 1 . The sludge outlet pipe 13 is used to discharge the sludge at the bottom of the reactor.

[0043] An overflow weir is installed at the top of the internal circulation aerobic granular sludge reactor to discharge water. That is, the water overflowing from the top enters the sump 4 . Below the sump 4 are three-phase separator 3 , inne...

Embodiment 2

[0051] This embodiment provides a method for biological treatment of high-salt and high-organic industrial wastewater based on the system described in Embodiment 1, which is characterized in that it comprises the following steps:

[0052] 1) Inlet pump 1 continuously sends high-salt and high-organic industrial wastewater into the bottom of the aerobic granular sludge reactor. It is worth noting that after the system circulates, in step 1), the water inlet pump 1 continuously sends the high-salt and high-organic industrial wastewater into the bottom of the aerobic granular sludge reactor, and mixes it with the return water in the circulation zone C. The particle size of the aerobic granular sludge inside the aerobic granular sludge reactor is 800-2000 μm, and the total amount of the aerobic granular sludge is kept above 80% of the total amount of sludge in the reactor. The inoculated sludge needs 3-15 days of aeration, high influent load and high salt pre-cultivation. After a l...

Embodiment 3

[0067] This embodiment is based on the method disclosed in embodiment 2, comprising the following steps:

[0068] The return sludge from the secondary sedimentation tank of a sewage treatment plant in Chongqing was taken, and after 10 days of aeration and high influent load pre-cultivation, after a large number of filamentous bacteria were produced, it was inoculated into the internal circulation aerobic granular sludge reactor and integrated aerobic granule Sludge membrane bioreactor. The influent water is the distribution water of Fuling shale gas wastewater, its COD is 2000mg / L, and the TDS concentration is 30000mg / L.

[0069] The height-to-diameter ratio of the internal circulation aerobic granular sludge reactor is 4, the diameter is 0.8m, the height is 3.2m, the gas ascending flow rate is controlled at 1.8cm / s, and the volume of the integrated aerobic granular sludge membrane bioreactor is 1.6 L, the temperature is controlled at 25°C, the pH is 7.5, and the aeration int...

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
Login to View More

Abstract

The invention discloses a system and method for biological treatment of high-salt high-organic matter industrial wastewater, and belongs to the technical field of wastewater treatment. The system comprises an inner-circulation aerobic granular sludge reactor and an integrated aerobic granular sludge membrane bioreactor. High-efficiency purification of the high-salt high-organic matter industrial wastewater can be achieved, the content of organic matter in the wastewater is reduced, and application in the subsequent advanced treatment process for removal of inorganic salts is facilitated. In the process, no addition of chemicals is required, energy consumption is low, the cost of wastewater treatment is low, and good engineering application prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment. . Background technique [0002] In the process of industrial production, a large amount of high-salt wastewater with high content of chloride ions, sulfate ions, sodium ions and calcium ions will be discharged. These wastewaters mainly come from industries such as chemical industry, petroleum, food processing, printing and dyeing. These wastewaters also contain a large amount of organic matter. In order to reduce the pollution of its discharge to the environment, industrial wastewater needs to be properly treated before it can be discharged. However, traditional biological treatment methods are difficult to treat high-salinity wastewater, and high organic matter makes membrane technology unsuitable for direct treatment of industrial wastewater. In order to realize the effective treatment of high-salt and high-organic industrial wastewater, it is necessary to choose a treatment met...

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): C02F3/12C02F101/30
CPCC02F3/121C02F3/1273C02F2101/30C02F2203/006Y02W10/10
Inventor 刘彩虹邓绍江张小月何强李果童彦刚陈俊宇胡美珩陈子惟
Owner 重庆大学科技企业(集团)有限责任公司
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