Advanced dyeing wastewater treatment and reclaimed water reuse system and method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology for advanced treatment of printing and dyeing wastewater, applied in textile industry wastewater treatment, biological water/sewage treatment, degassed water/sewage treatment, etc. Achieve the effects of stable and reliable operating costs, automatic control, and pollution elimination
Inactive Publication Date: 2009-09-09
常州市东霞房地产代理有限公司 +2
View PDF0 Cites 52 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
It is difficult to discharge wastewater up to standard by a single treatment process, and a combination of multiple processes is required
There are still some problems in the reuse of printing and dyeing wastewater, such as: a large amount of wastewater reuse will bring a series of problems to the production and sewage treatment system, mainly including the accumulation of organic pollutants and inorganic salts, making the sewage treatment system unable to operate, and the reuse rate is too high High, without desalination treatment, it will also make production and sewage treatment impossible
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0041] The printing and dyeing wastewater advanced treatment and reclaimed water reuse system is characterized in that it consists of a regulating tank (2), a coagulation tank (3), a pre-sedimentation tank (4), an acidification hydrolysis tank (5), a deep well (6), a degassing tank Pool (7), secondary settling tank (8), biologically activated carbon pool (9), sludge thickening tank (10), sludge dehydration tank (11), filter tank (12), and ozone oxidation tank (13).
[0042] Regulating pool: wastewater quality and quantity regulation;
[0043] Coagulation tank: used for coagulation of waste water, under rapid stirring, add coagulant to make coagulation reaction with waste water;
[0044] Pre-sedimentation tank: used for solid-liquid separation of wastewater after coagulation;
[0045] Acidification and hydrolysis tank: used for pretreated wastewater and microbial acidification and hydrolysis treatment. Aeration pipes are installed in the tank, and a small amount of aeration is...
Embodiment 2
[0063] The printing and dyeing wastewater advanced treatment and reclaimed water reuse system is characterized in that it consists of a regulating tank (2), a coagulation tank (3), a pre-sedimentation tank (4), an acidification hydrolysis tank (5), a deep well (6), a degassing tank Pool (7), secondary settling tank (8), biologically activated carbon pool (9), sludge thickening tank (10), sludge dehydration tank (11), filter tank (12), and ozone oxidation tank (13).
[0064] Regulating pool: wastewater quality and quantity regulation;
[0065] Coagulation tank: used for coagulation of wastewater dosing;
[0066] Pre-sedimentation tank: used for solid-liquid separation of wastewater after coagulation;
[0067] Acidification and hydrolysis tank: used for pretreated wastewater and microbial acidification and hydrolysis treatment. Aeration pipes are installed in the tank, and a small amount of aeration is used to mix wastewater and activated sludge, and maintain dissolved oxygen i...
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
Login to view more
Abstract
The invention relates to an advanced dyeing wastewater treatment and reclaimed water reuse system and a method thereof. The system consists of a regulating tank (2), a coagulation tank (3), a preliminary sedimentation tank (4), an acidification hydrolysis tank (5), a deep well (6), a deaeration tank (7), a secondary sedimentation tank (8), a biological activated carbon tank (9), a sludge concentration tank (10), a sludge dewatering tank (11), a filter tank (12) and an ozone oxidation tank (13). The method comprises the following steps: wastewater is sent to the regulating tank, the coagulation tank and the preliminary sedimentation tank, then sludge is returned to the coagulation tank, excess sludge is discharged to the sludge concentration tank, clarified water flows to the acidification hydrolysis tank, is sent to a deep well aeration tank and then sent to the secondary sedimentation tank; and the obtained clarified water is discharged after meeting the standard, or flows to the biological activated carbon tank and is treated for production. The system and the method have the advantages of simple process, low operating cost, high stability and reliability, convenient operation, and realization of automation control. Most of the wastewater discharged is reused in production after the treated wastewater meets the standard, thus reducing emission of pollutants, being capable of eliminating environmental pollution resulting from the wastewater and protecting environment.
Description
technical field [0001] The invention belongs to the field of reclaimed water treatment in textile dyeing and finishing, in particular to a system and method for advanced treatment of printing and dyeing wastewater and reuse of reclaimed water. Background technique [0002] The printing and dyeing industry is an important part of the textile industry. It is not only a key industry to improve product quality and increase product added value, but also an industry that consumes a lot of water, energy, and pollutants. In recent years, driven by the steady and rapid growth of the textile industry, the printing and dyeing industry has developed rapidly, but at the same time it is increasingly constrained by resources and the environment. Printing and dyeing wastewater mainly comes from the two processes of pretreatment and dyeing and printing. It has the characteristics of large water volume, high content of organic pollutants (high COD value), deep color, high alkalinity, and larg...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more