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Biological combined reactor used for printing and dyeing waste water processing, device and method

A combined reactor and printing and dyeing wastewater technology, applied in the textile industry wastewater treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. The difficulty of treatment of printing and dyeing wastewater, the inability of biological treatment methods to achieve the treatment effect, etc., to achieve the effects of low infrastructure and operation costs, good effluent quality, and small footprint

Active Publication Date: 2014-09-10
福建省环境保护设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In fact, in the process of printing and dyeing wastewater treatment, alkali reduction wastewater, printing wastewater and other high-concentration printing and dyeing wastewater are mixed for post-treatment, which not only increases the difficulty and cost of comprehensive printing and dyeing wastewater treatment, but also makes it difficult for conventional wastewater treatment processes to achieve Up-to-standard discharge after high standard treatment
[0003] Refractory complex organic substances such as macromolecular polymers, dyes, PVA, and additives produced in the various treatment processes of printing and dyeing wastewater are dissolved into a large amount of alkali reduction printing and dyeing wastewater, which greatly increases the cost of alkali reduction and desizing printing and dyeing. Due to the difficulty of wastewater treatment, traditional biological treatment methods cannot achieve good treatment results.
Therefore, printing and dyeing wastewater has the characteristics of complex water quality, large water volume, and difficult biological treatment, which has always been a hot spot and difficulty in the field of wastewater treatment.

Method used

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  • Biological combined reactor used for printing and dyeing waste water processing, device and method
  • Biological combined reactor used for printing and dyeing waste water processing, device and method
  • Biological combined reactor used for printing and dyeing waste water processing, device and method

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Embodiment Construction

[0079] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0080] see figure 1 and figure 2 ; figure 1 It is a structural schematic diagram of a biological combination reactor 1 for printing and dyeing wastewater treatment in one embodiment of the present invention; figure 2 It is a three-dimensional schematic diagram of a biological combination reactor for printing and dyeing wastewater treatment in one embodiment of the present invention. The thick black arrows in the figure represent the direction of water flow. The biocombination reactor 1 includes an anaerobic baffle reaction zone 100, an anaerobic reflux chamber 101 and an aerobic dynamic reaction zone 102; the water inlet 103 of the biocombination reactor 1 is located in the anaerobic baffle reaction zone 100; The water outlet of the ...

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Abstract

The invention provides a biological combined reactor used for printing and dyeing waste water processing. The reactor comprises an anaerobic baffling reacting zone, an anaerobic return chamber and an aerobiotic dynamic reaction zone. The water inlet of the reactor is disposed in the anaerobic baffling reacting zone. The anaerobic baffling reacting zone is compartmented into two or more baffling chambers by compartmenting walls. The baffling chambers are provided with vertical baffling plates and inoculated with active particle sludge accounting for one third to a half of the effective volume of the baffling chambers. The aerobiotic dynamic reaction zone is compartmented into a first compartment, a second compartment and a third compartment by two baffling plates. The second compartment is inoculated with one third to a half of the active particle sludge. The second compartment is provided with a grating net and an aerating system is disposed on the grating net. The first compartment and the third compartment are respectively provided with a bag type membrane assembly. The invention also provides a printing and dyeing waste water processing device comprising the reactor and a printing and dyeing waste water processing method by utilization of the reactor. The reactor, the device and the method are advantaged by simple process, low cost, stable running, good discharging water quality, and the like.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a device and method suitable for treating mixed printing and dyeing wastewater with high COD concentration, high ammonia nitrogen, and high chroma produced in processes such as alkali weight reduction and desizing. Background technique [0002] The comprehensive treatment of industrial wastewater has become one of the major problems to be solved in contemporary environmental work. Among them, the water consumption of the textile dyeing and finishing industry is the second largest among all industries in my country, and the wastewater discharge ranks the sixth in the country, of which printing and dyeing wastewater accounts for more than 80% of the national textile wastewater discharge. Existing printing and dyeing factories mainly process pure cotton fabrics, cotton, chemical fiber blended fabrics, and purified fiber fabrics, which are usually divided into main processing proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F9/14C02F103/30
Inventor 钟启俊
Owner 福建省环境保护设计院有限公司
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