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

Device and method for biologically denitrifying wastewater with high salinity

A technology of biological denitrification and treatment device, applied in the fields of sewage treatment and environmental protection, can solve the problems of long start-up period, instability, low removal rate, etc., and achieve the effects of short start-up time, large impact load, and simple and convenient operation.

Active Publication Date: 2014-08-27
BLUESTAR LEHIGH ENG INST CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to solve the deficiencies of the existing technology, and to provide a method that can overcome the problems of long start-up period, low removal rate and instability of traditional microbial acclimation denitrification, etc. A device for biological denitrification treatment of high-salt wastewater under the condition of salinity dilution

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
  • Device and method for biologically denitrifying wastewater with high salinity
  • Device and method for biologically denitrifying wastewater with high salinity
  • Device and method for biologically denitrifying wastewater with high salinity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1, with reference to figure 1 , a high-salt wastewater biological denitrification treatment device, the device includes anaerobic reactor 9, composite biofilm reactor 17, carbon source supplement tank 1, water inlet tank 3 and sedimentation tank 22;

[0045] The water inlet tank 3 is connected with the anaerobic reactor 9 through the water inlet pipeline 5, and the first lift pump 4 is provided on the water inlet pipeline 5;

[0046] The carbon source supplement tank 1 is connected to the anaerobic reactor 9 through the supplement pipeline 6, and a peristaltic pump 2 is provided on the supplement pipeline 6;

[0047] Described anaerobic reactor 9 is provided with first heating temperature control device 7 and stirring impeller 8, and stirring impeller 8 is connected with agitator 10 outside anaerobic reactor 9;

[0048] Described anaerobic reactor 9 is connected with composite biofilm reactor 17 by conveying pipeline 11, is provided with second lifting pump ...

Embodiment 2

[0050] Example 2, in the high-salt wastewater biological denitrification treatment device described in Example 1: the biological filler 14 is a fluffy lump filler, and the height of the filler layer accounts for 40-80% of the total height of the composite biofilm reactor 17 %; The plush ball-shaped filler is a plush ball-shaped hanging filler made of soft plastic or fiber, the diameter of a single filler is 150mm~250mm, and the hanging distance between fillers is 50mm~150mm.

Embodiment 3

[0051] Embodiment 3, a method of utilizing the device described in Embodiment 1 or 2 to carry out biological denitrification treatment of high-salt wastewater, the steps are as follows:

[0052] (1) Inoculate the sludge samples into the anaerobic reactor 9, the composite biofilm reactor 17, and the sedimentation tank 22, and maintain a suitable concentration of volatile solids VSS; the sludge samples are taken from the salt field, saline-alkali land Or the sludge of salt lake, the salinity is 0.5~10%;

[0053] (2) Activate and cultivate the inoculated sludge sample, put the biofiller 14 into the composite biofilm reactor 17, turn off the peristaltic pump 2 and the first lift pump 4, and turn on the second reflux pump 26 and the first reflux pump 27; add liquid medium A to the anaerobic reactor 9 every day, add liquid medium B to the composite biofilm reactor 17 and the sedimentation tank 22, and finally make the volatile sludge concentration VSS in the above three devices ≥ 20...

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 relates to a device for biologically denitrifying wastewater with high salinity. The device adopts an anaerobic-composite biological membrane reactor as a main body, and is in continuous operation. The composite biological membrane reactor is filled with biological stuffing, and the composite biological membrane reactor is provided with a composite biological response zone combining a biomembrance process with an activated sludge process. The invention further discloses a method for biologically denitrifying wastewater with high salinity. The method is characterized in that collected salt-bearing bottom sediment is inoculate in the device, simulation ammonia-nitrogen wastewater with 15 g / L to 75 g / L salt contents serves as feeding water, and the continuous operation is carried out for 10-40 times, and then actual industrial wastewater with high salinity is added, and the continuous operation is carried out for 5-20 times, so that a system for biologically denitrifying wastewater with high salinity is built. The built system for biologically denitrifying can treat wastewater with 0.5 to 10% high salinity stably and effectively. The biologically denitrifying treatment is achieved under the condition of no desalination and no salinity dilution. The problem that the domestication time of the salinity of freshwater organisms is longer and instable, resulting in serious engineering application constraint is solved, and meanwhile, the treatment cost is further lowered, and on the premise of ensuring that the effluent quality is safe and stable, the treatment efficiency is improved, and the operation power consumption and the operation cost are saved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment and environmental protection, in particular to a device and method for quickly constructing and stably operating a high-salt wastewater biological denitrification treatment system, in particular to a device and method for quickly constructing a high-salt wastewater biological denitrification treatment system using salt field sludge. A nitrogen treatment system and a device and method for realizing biological denitrification of high-salt wastewater. Background technique [0002] High-salt wastewater generally refers to wastewater with a total salt content (calculated by NaCl content) of at least 1%, which is widely found in chemical, pharmaceutical, leather, food, oil extraction, seafood processing and other industries. The salinity of organic wastewater discharged from some industrial product processes even exceeds 20%, and when mixed with other wastewater, the salt concentration often ...

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 Patents(China)
IPC IPC(8): C02F9/14
Inventor 张彬彬王克云刘娟田凤蓉杨志林王开春徐军董自斌
Owner BLUESTAR LEHIGH ENG INST CO LTD
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