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Treatment device and method of printing and desizing mixed wastewater

A technology of mixing wastewater and treatment device, which is applied in textile industry wastewater treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. Discharge up to the standard and other problems, to achieve the effect of good sludge retention performance, reduction of comprehensive operating costs, and high shock load resistance

Inactive Publication Date: 2014-01-22
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Textile size includes natural starch, modified starch and chemical size (mainly PVA and acrylic). For chemical size, due to their extremely poor biodegradability, conventional wastewater biological treatment processes cannot effectively treat it
[0005] At present, in actual projects, printing wastewater, desizing wastewater and other printing and dyeing wastewater are mixed together for treatment, which not only increases the difficulty and cost of comprehensive printing and dyeing wastewater treatment, but also makes it difficult to achieve high-standard treatment by conventional wastewater treatment processes post-compliance discharge, not to mention reuse

Method used

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  • Treatment device and method of printing and desizing mixed wastewater
  • Treatment device and method of printing and desizing mixed wastewater
  • Treatment device and method of printing and desizing mixed wastewater

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Embodiment 1

[0032] like figure 1 As shown, it is a schematic structural diagram of a treatment device for printing desizing mixed wastewater. The described treatment device for printing desizing mixed wastewater includes a water collection adjustment tank 1, an enhanced circulation high-efficiency anaerobic bioreactor 2, and an aerobic biological contact oxidation tank 3. Air flotation tank 4, advanced oxidation tank 5 and biological aerated filter tank 6. The specific steps of using the above-mentioned printing and desizing mixed wastewater treatment device to carry out the printing and desizing mixed wastewater treatment method are as follows: sequentially use the printing and desizing mixed wastewater with the water collection adjustment tank 1, the enhanced circulation high-efficiency anaerobic bioreactor 2, and the aerobic Biological contact oxidation tank 3, air flotation tank 4, advanced oxidation tank 5 and aerobic biological treatment system are used for treatment, and the result...

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Abstract

The invention provides a treatment device and method of printing and desizing mixed wastewater. The treatment device of the printing and desizing mixed wastewater is characterized by comprising a water collecting regulating tank, a reinforced circulating type efficient anaerobic bioreactor, an aerobic biological contact oxidation tank, a gas-flotation tank, a high-level oxidization tank and an aeration biological filter tank. The treatment device and method disclosed by the invention are especially suitable for treating the high-ammonia-nitrogen high-concentration printing and desizing mixed wastewater generated in printing and desizing processes, a process system disclosed by the invention is adopted to effectively treat the high-concentration high-ammonia-nitrogen wastewater generated by the printing process and high-concentration high-alkaline wastewater generated by the desizing process in printing and dyeing enterprises after the two kinds of wastewater are subjected to flow-dividing and mixing, and also can be combined with a wastewater treatment process for other relatively-low-concentration pollutants in a printing and dying plant to form a complete wastewater treatment system of the enterprise, thereby realizing modifying and upgrading an existing wastewater system.

Description

technical field [0001] The invention belongs to the field of printing and dyeing wastewater treatment, and is especially suitable for the treatment of high-ammonia nitrogen and high-concentration desizing and printing mixed wastewater produced by printing and desizing processes. The generated high-concentration and high-alkaline wastewater is shunted and mixed with the process system of the present invention to effectively treat it, or combined with other wastewater treatment processes with relatively low concentrations of pollutants in printing and dyeing plants to form a complete wastewater treatment system for the enterprise . Background technique [0002] The textile printing and dyeing industry is one of my country's traditional pillar industries. With the increase of China's per capita fiber consumption in these years, the output of yarn, cloth clothing and chemical fiber above the domestic scale has leapt to the first place in the world. The prosperity of the textile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/30
Inventor 杨波李方田晴马春燕毕深涛张冉冉郑凯王随峰
Owner DONGHUA UNIV
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