Reprocessing device and method of textile sewage of conventional secondary treatment
A technology for reprocessing and sewage, which is applied in the fields of water/sewage multi-stage treatment, sustainable biological treatment, chemical instruments and methods, etc. It can solve the problems of limited treatment effect and excessive discharge, and achieve the effect of reducing the CODcr index.
Active Publication Date: 2011-11-02
GUANGDONG ESQUEL TEXTILES CO LTD
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The sewage treated in this way can be reused, but due to the use of ordinary biological aerated filters, the treatment effect is limited, and the CODcr of the dirty phase after separation by membrane units (including ultrafiltration and reverse osmosis) is bound to far exceed The sewage discharge standard of the textile dyeing and finishing industry will still exceed the discharge standard
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0020] refer to figure 1 , is a structural schematic diagram of a textile sewage treatment device, which consists of an ozone integrated biological aerated filter tank 1, a secondary biological aerated filter tank 5, a multimedia filter 3, and an ultrafiltration membrane separation unit 6 arranged in series Composed of a reverse osmosis membrane separation unit 4, wherein the biological aerated filter tank 1 is filled with ceramsite 2, the bottom of which is respectively provided with an ozone inlet 10, an air inlet 11, and a sewage inlet 9 connected to the outlet of the sewage pump 7, and the top outlet is passed through The pipeline is connected to the water inlet at the bottom of the secondary biological aerated filter 5, the secondary biological aerated filter 5 is filled with ceramsite 2, and the bottom is provided with an air inlet 12, and the water outlet at the top of the secondary biological aerated filter 5 is connected by a pipeline The inlet of the water pump 8, th...
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
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a reprocessing device and method of textile sewage of conventional secondary treatment. The method comprises the following steps: when the sewage of conventional secondary treatment enter from the bottom of an ozone integrated biological aerated filter, filling air with an aeration rate of 12m<3> / m<3> and 10-60g / m<3> of ozone in the biological aerated filter to aerate and control the CODcr of reacted sewage to be 30mg / l or less, mixing the reacted sewage to transfer upward to pass through a ceramsite layer and discharge from the top, then filtering with a multi-media filter to remove residual suspended matter, sending the obtained sewage to a reverse osmosis membrane separating unit, discharging the produced water from a water-producing outlet, and discharging concentrated water of which CODcr is 100mg / l or less from a concentrated phase outlet. The invention has the advantages as follows: organic matter can be degraded furthest, each phase obtained through membrane separation has better water quality and the concentrated phase satisfies the current emission standard, thus effectively performing advanced treatment of textile sewage, increasing the water recovery rate and reducing the total discharge of sewage and pollutants.
Description
technical field [0001] The invention relates to a method and a device for reprocessing textile sewage after conventional secondary treatment, in particular to a method and a device for reusing the retreated water for textile production and processing. Background technique [0002] Wastewater from the textile industry has the characteristics of large water volume, complex composition, and serious environmental pollution. At present, most of the treatment of this kind of wastewater in China is aimed at meeting the discharge standards. The shortage of water resources, the continuous economic growth and the increase of population will inevitably lead to the relative shortage of water resources. For large water users such as the textile industry, recycling water resources is not only a need to promote the coordinated development of economy, environment, and society, but also a need for the sustainable development of the textile industry. [0003] Pollutants in textile industria...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/10C02F3/12C02F1/44C02F103/30
CPCY02W10/10
Inventor 张玉高邱孝群熊华军张有会
Owner GUANGDONG ESQUEL TEXTILES CO LTD