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Treatment method of waste stripping liquid

A treatment method and stripping solution technology, which can be used in filtration treatment, natural water treatment, water/sewage treatment, etc., and can solve the problem of high COD content

Active Publication Date: 2019-11-08
惠州市惠阳区力行环保有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the traditional treatment method still has the problem of high COD content in the final discharge

Method used

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  • Treatment method of waste stripping liquid
  • Treatment method of waste stripping liquid
  • Treatment method of waste stripping liquid

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Embodiment Construction

[0018] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0019] For example, a method for treating waste stripping liquid includes the following steps: performing a rectification operation on the water phase mixture to collect the water phase mixture; performing a distillation operation on the water phase mixture to collect the distillate; ...

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Abstract

The invention relates to a method for treating waste stripping liquid. The method includes steps of carrying out rectification operation on aqueous-phase mixtures and collecting aqueous-phase mixtures; carrying out distillation operation on the aqueous-phase mixtures and collecting distillate; adding oxidizing agents into the distillate and carrying out oxidation operation on the distillate to obtain oxidized mixtures; carrying out suction filtration operation on the oxidized mixtures and collecting suction filtration liquid; carrying out adsorption operation on the suction filtration liquid by the aid of activated carbon. The method for treating the waste stripping liquid has the advantages that ultimate discharged substances are low in COD (chemical oxygen demand) content, and accordingly requirements of discharge standards can be met.

Description

technical field [0001] The invention relates to the technical field of waste liquid treatment, in particular to a treatment method for waste stripping liquid. Background technique [0002] At present, the waste stripping solution is produced in the production process of thin film transistor liquid crystal display (TFT-LCD), and there are processes such as cleaning, coating, photolithography, etching, and stripping on the surface of the glass substrate. The photolithography process utilizes exposure and development to describe the geometric structure on the photoresist layer, and then completely and accurately replicates the pattern on the photomask to the glass substrate through the etching process. Photoresists are mainly composed of photosensitive resins and organic solvents that are very sensitive to light and energy. After the photosensitive resin is exposed to light, the photocuring reaction can quickly occur in the exposure area, so that the physical properties of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C02F9/14C02F103/40
CPCC02F1/001C02F1/04C02F1/283C02F1/40C02F1/5245C02F1/56C02F1/72C02F1/722C02F3/34C02F9/00C02F2103/40
Inventor 庞流田锦文郏彩霞张兆龙张春志廖小明罗泳健
Owner 惠州市惠阳区力行环保有限公司
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