Unlock instant, AI-driven research and patent intelligence for your innovation.

Multi-stage jet aeration reactor and its application in the treatment of viscose fiber wastewater

A technology of jet aeration and reactor, applied in water/sewage multi-stage treatment, water aeration, sedimentation treatment and other directions, can solve the problems of high capital construction cost, large operation and maintenance cost, poor treatment effect, etc. The effect of less, saving infrastructure costs and reducing load

Active Publication Date: 2021-11-02
NANJING UNIV +1
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the large-scale and intensive development of the viscose fiber industry, the waste water produced by its production will not only change in the amount of waste water, but also in its composition and concentration. The heat transfer will also change. The simple expansion of the traditional aeration reactor to treat large-scale viscose wastewater will cause a series of problems such as poor treatment effect, high infrastructure costs, and high operation and maintenance costs.

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
  • Multi-stage jet aeration reactor and its application in the treatment of viscose fiber wastewater
  • Multi-stage jet aeration reactor and its application in the treatment of viscose fiber wastewater
  • Multi-stage jet aeration reactor and its application in the treatment of viscose fiber wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 , 2 The shown multi-stage jet aeration reactor includes biological selection zone 1, multi-stage aerobic aeration zone 2, aerobic precipitation zone 3, and multi-stage jet aeration located in multi-stage aerobic aeration zone 2 in series. element 4;

[0036] The biological selection area 1 is equipped with a biological selection mixer 10; the multi-stage aerobic aeration area 2 is composed of five aeration reaction areas 20 connected in series, and each aeration reaction area 20 is connected to a common waste gas treatment element through a connecting pipe 21. The bottom end of the aerobic sedimentation zone 3 is connected to the biological selection zone 1, and a sludge return pump 30 is provided at the connection, and an aerobic sedimentation scraper 31 is provided in the aerobic sedimentation zone 3;

[0037] Such as Figure 6 , 7 As shown, the multi-stage jet aeration element 4 includes four jet aerators 40 located in each aeration reaction zone...

Embodiment 2

[0043] This embodiment is basically the same as Embodiment 1, the difference is:

[0044] Such as image 3 As shown, the biological selection area 1 is provided with a spray dosing element 11. The spray dosing element 11 includes a position adjustment frame 110 on an external fixing element at one end and a fixing collar 1101 at the other end. The snap ring 1110 on the upper end of the fixed ferrule 1101 and the temporary storage cylinder 111 with the addition port 1111 at the upper end, the five dispersion spray cylinders 112 evenly distributed on the periphery of the temporary storage cylinder 111 along the circumferential direction and connected through the temporary storage cylinder 111, rotating The motor 113, the side wall of the temporary storage cylinder 111 is provided with a gear ring 1112, the output shaft of the rotating motor 113 is connected with a driving gear 1130 meshing with the gear ring 1112, and each dispersing spray cylinder 112 side wall is evenly provid...

Embodiment 3

[0046] This embodiment is basically the same as Embodiment 2, the difference is:

[0047] Such as image 3 As shown, a solenoid valve 114 and an electronic flowmeter 115 are provided at the connection between the temporary storage cylinder 111 and each dispersion spray cylinder 112, and a liquid level scale 1113 is provided on the side wall of the temporary storage cylinder 111, which is visually displayed through the liquid level scale 1113 The liquid level of the drug in the temporary storage cylinder 111 is convenient for timely replenishment to ensure that sufficient drug dosage is added to the bioselective zone 1, and the dosage of the drug added to the bioselective zone 1 is accurately controlled by the solenoid valve 114 and the electronic flow meter 115 to avoid adding Too much water will cause secondary pollution.

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
areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a multi-stage jet aeration reactor and its application in the treatment of viscose fiber wastewater, belonging to the technical field of sewage treatment. The multi-stage jet aeration reactor specifically includes a biological selection area, a multi-stage aerobic aeration area, an aerobic precipitation area and a multi-stage jet aeration element arranged in the multi-stage aerobic aeration area in series in sequence. The reactor of the invention has the advantages of simple treatment process, less treatment structures, high dissolved oxygen transfer efficiency (above 30%), less operating equipment in the aerobic zone, etc., greatly reducing infrastructure costs, operating energy consumption and maintenance costs. In addition, the jet aerator used in the present invention can solve industrial problems such as easy fouling of the biochemical aeration system and clogging of the aerator, so it has considerable advantages in the treatment of viscose fiber wastewater and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a multi-stage jet aeration reactor and its application in viscose fiber wastewater treatment. Background technique [0002] In recent years, using cheap and abundant natural fibers such as bamboo, wood, and cotton as raw materials, the scale of man-made fiber products prepared by a series of processes such as hydrolysis, cooking, bleaching, acid treatment, and alkali bath has become larger and larger, which has brought huge social impact. economic benefits. However, the environmental pressure brought by large-scale will also increase, and the pollution situation will become increasingly severe. Among them, the viscose fiber wastewater with high suspended solids, high chroma, high COD and BOD, and high zinc in the production process is the most prominent. . The direct discharge of such wastewater will not only damage the surrounding ecological environment, b...

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): C02F9/14C02F101/30
CPCC02F3/12C02F7/00C02F9/00C02F2001/007C02F2101/30C02F2303/14
Inventor 吕路郭志成徐敬生黄前霖张炜铭潘丙才
Owner NANJING UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com