Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Textile wastewater recycling method and device

A technology of textile wastewater and suspension device, applied in textile industry wastewater treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. and other problems, to achieve the effect of reducing the cost of wastewater treatment, expanding the scope of effective utilization, and improving the efficiency of wastewater treatment.

Pending Publication Date: 2019-05-28
FUJIAN HANGGANG TEXTILE TECH CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the settleability of sludge depends on the operating conditions of the aeration tank. To improve the settleability of sludge, the operating conditions of the aeration tank must be strictly controlled, which limits the scope of application of this method.
Due to the requirement of solid-liquid separation in the secondary sedimentation tank, the sludge in the aeration tank cannot maintain a high concentration, generally around 1.5~3.5g / L, which limits the biochemical reaction rate
[0003] MBR membranes are mostly used for treatment, such as a textile wastewater treatment method disclosed by the patent authorization announcement number CN103102048B, but the investment and operating costs of the process in the MBR membrane process are too high, and the water quality characteristics of textile printing and dyeing wastewater can easily lead to Membrane fouling shortens membrane life

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
  • Textile wastewater recycling method and device
  • Textile wastewater recycling method and device
  • Textile wastewater recycling method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for recycling textile waste water, comprising the steps of:

[0041] S1: Textile wastewater is pre-treated to obtain pre-treated water;

[0042] The pre-treatment includes sequential mechanical filtration and pre-treatment agent treatment and filtration; mechanical filtration adopts a grid;

[0043] S2: The pre-treated water is sent to the adjustment tank to adjust the pH to 4;

[0044] S3: enter the MBR reaction tank for treatment, and obtain water that meets the discharge standard.

[0045] The pretreatment agent comprises 30 parts of activated carbon, 20 parts of modified bagasse, 30 parts of adsorption polymer, 12 parts of bamboo powder with a particle diameter of 800-1000 microns, and 5 parts of acrylate.

[0046] The adsorption polymer is formed by using styrene and acrylate as monomers, adding divinylbenzene as a crosslinking agent, and toluene as a porogen.

[0047] The pretreatment agent is prepared by the following steps:

[0048] (1) Activated ca...

Embodiment 2

[0052] A method for recycling textile waste water, comprising the steps of:

[0053] S1: Textile wastewater is pre-treated to obtain pre-treated water;

[0054] The pre-treatment includes sequential mechanical filtration and pre-treatment agent treatment and filtration; mechanical filtration adopts a grid;

[0055] S2: The pre-treated water is sent to the adjustment tank to adjust the pH;

[0056] S3: enter the MBR reaction tank for treatment, and obtain water that meets the discharge standard.

[0057] The pretreatment agent includes 22 parts of activated carbon, 25 parts of modified bagasse, 20 parts of adsorption polymer, 20 parts of bamboo powder with a particle diameter of 800-1000 microns, and 8 parts of acrylate.

[0058] The adsorption polymer is formed by using styrene and acrylate as monomers, adding divinylbenzene as a crosslinking agent, and toluene as a porogen. Specific method: add acrylate monomer, styrene monomer, cross-linking agent and porogen to the aqueo...

Embodiment 3

[0065] A method for recycling textile waste water, comprising the steps of:

[0066] S1: Textile wastewater is pre-treated to obtain pre-treated water;

[0067] The pre-treatment includes sequential mechanical filtration and pre-treatment agent treatment and filtration; mechanical filtration adopts a grid;

[0068] S2: The pre-treated water is sent to the adjustment tank to adjust the pH;

[0069] S3: enter the MBR reaction tank for treatment, and obtain water that meets the discharge standard.

[0070] The pretreatment agent includes 25 parts of activated carbon, 25 parts of modified bagasse, 25 parts of adsorption polymer, 18 parts of bamboo powder with a particle diameter of 800-900 microns, and 3 parts of acrylate.

[0071] The adsorption polymer is formed by using styrene and acrylate as monomers, adding divinylbenzene as a crosslinking agent, and toluene as a porogen.

[0072] The pretreatment agent is prepared by the following steps:

[0073] (1) Activated carbon is...

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 size (mesh)aaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a textile wastewater recycling method and a device. The method comprises the following steps: S1, performing pretreatment on textile wastewater to obtain pretreatment water, wherein the pretreatment comprises sequentially performed mechanical filtration and treatment filtration by adopting a pretreatment agent; S2, feeding the pretreatment water into an adjusting tank, andadjusting the PH (Potential of Hydrogen) to be 4-6; and S3, entering a MBR reaction tank, and performing treatment to obtain water meeting a drainage standard, wherein the pretreatment agent is prepared from activated carbon, bagasse, an adsorption polymer and bamboo powder. A pretreatment way is adopted to primarily clear organic matters and suspended matters in the wastewater, so that not only is a MBR membrane for post-treatment decompressed, but also the wastewater treatment efficiency is improved, and the wastewater treatment cost is reduced.

Description

technical field [0001] The invention belongs to the field of water treatment, and relates to a method and a device for recycling textile wastewater. Background technique [0002] Textile industrial wastewater generally contains suspended solids, grease, lint, surfactants and various dyes. The treatment methods of the traditional activated sludge method are: raw wastewater, grille, homogeneous tank, aeration tank, sludge settling tank, and effluent. However, in this traditional wastewater biological treatment technology, the separation of mud and water is in the secondary sedimentation tank. It is completed by gravity, and its separation efficiency depends on the sedimentation performance of activated sludge. The better the sedimentation performance, the higher the mud-water separation efficiency. However, the settleability of sludge depends on the operating conditions of the aeration tank. To improve the settleability of sludge, the operating conditions of the aeration tank...

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): C02F9/14C02F103/30
CPCY02W10/10
Inventor 张明郑春光陈文娟
Owner FUJIAN HANGGANG TEXTILE TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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