Printed circuit board high-concentration organic wastewater and acidic wastewater treating process

A technology for printing circuit boards and organic waste liquids, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Problems such as high manual operation intensity

Active Publication Date: 2014-01-08
江西红板科技股份有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

In this way, the cost of wastewater treatment is high, the manual operation of

Method used

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  • Printed circuit board high-concentration organic wastewater and acidic wastewater treating process

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Embodiment Construction

[0021] In order to make the technical solution of the present invention more clearly expressed, the present invention will be further described below in conjunction with the accompanying drawings.

[0022] Please refer to figure 1 , a printed circuit board high-concentration organic waste liquid and acid waste liquid treatment process, comprising the following steps:

[0023] (1) Separately collect high-concentration organic waste liquid (developing waste liquid, fading waste liquid and waste ink, etc.) in the circuit board industry into the organic waste water pool 12, and separately collect acidic waste liquid (pickling waste liquid, etc.) into the waste acid pool 11;

[0024] (2) Inject the high-concentration organic waste liquid from the organic waste water pool 12 and the acidic waste liquid from the waste acid pool 11 into the acid analysis pool 13 in proportion, adjust the pH value of the waste water, add flocculants, aerate for 20 to 30 minutes, and add The coagulant...

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Abstract

Disclosed are printed circuit board high-concentration organic wastewater and an acidic wastewater treating process. The acidic wastewater treating process mainly includes a plurality of steps, namely, acidifying and filter-pressing, iron-carbon micro-electrolysis, Fenton oxidation and flocculent settling, SBR bio-treatment and the like. By the process, organic matters in water can be removed efficiently and thoroughly, and the water is ensured to be capable of reaching the standard and discharged after being mixed with other wastewater through a comprehensive wastewater treating system.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a process for treating high-concentration organic waste liquid and acid waste liquid of printed circuit boards. Background technique [0002] The output value of the global printed circuit board industry accounts for more than a quarter of the total output value of the electronic component industry, and it is the industry with the largest proportion among various electronic component sub-sectors, with an industry scale of 55 billion US dollars. At the same time, due to its unique position in the electronic basic industry, it has become the most active industry in the contemporary electronic component industry. [0003] The circuit board industry will produce a large amount of high-concentration organic waste liquid during the production process, mainly including the waste liquid of developing and film fading in the line process (dry film, wet film and green oil) and the waste...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 查红平何立发文伟峰庞煜
Owner 江西红板科技股份有限公司
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