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Direct treatment method of digital printing wastewater

A technology of digital printing and processing methods, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as a large amount of wastewater and waste, and achieve the effect of improving treatment efficiency

Inactive Publication Date: 2019-02-22
江苏爱特恩高分子材料有限公司
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Problems solved by technology

[0002] The dyeing process has the advantage of generating a large industrial demand, but at the same time, generates a lot of wastewater and waste

Method used

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  • Direct treatment method of digital printing wastewater

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Embodiment Construction

[0015] In order to enable those skilled in the art to better understand the technical solutions in the application, the technical solutions in the embodiments of the application are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the application, and Not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0016] Below in conjunction with accompanying drawing, technical scheme of the present invention has been described in further detail:

[0017] A kind of direct treatment method of digital printing waste water, concrete steps are as follows:

[0018] Step 1: Separating the printing and dyeing wastewater into ultrafiltration concentrated water and ultrafiltration treated water through the ultrafiltration unit, and recycling the ultrafiltration co...

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Abstract

The invention provides a direct treatment method of digital printing wastewater, comprising the steps of treating digital printing wastewater from a digital textile printing process through an ultrafiltration treatment process so as to separate ultrafiltration concentrate and ultrafiltration treated water from the digital printing wastewater; treating the ultrafiltration treated water by means ofreverse osmosis so as to separate reverse osmosis concentrate and reverse osmosis treated water from the ultrafiltration treated water. The ultrafiltration concentrate is circulated to mix the same with newly supplied printing wastewater; the reverse osmosis concentrate is circulated to mix the same with the ultrafiltration treated water. The direct treatment method is used for directly treating dyeing wastewater from digital textile printing; treating efficiency of the direct treatment method is improved by lowering organic carbon load of a membrane.

Description

technical field [0001] The invention relates to a direct treatment method of digital printing wastewater, which belongs to the field of printing and dyeing wastewater treatment. Background technique [0002] The dyeing process has the advantage of generating a large industrial demand, but at the same time, a large amount of wastewater and waste is generated. Therefore, developed countries have long implemented or supported dyeing-related clean technologies and wastewater treatment at the national level. DTP technology is an urban dyeing technology that is suitable for small batch batch production, becoming increasingly diversified by customers However, in applying DTP technology to the industrial field, the present invention has the above-mentioned problems It is used to fix the urban dyeing process of the present invention It is another object of the present invention to provide a method for the treatment of waste water produced by a digital printing method capable of trea...

Claims

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Application Information

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IPC IPC(8): C02F9/02
CPCC02F1/441C02F1/444
Inventor 张莉娜方春平
Owner 江苏爱特恩高分子材料有限公司
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