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LED (light emitting diode) chip production wastewater treatment device

A technology for LED chips and waste water production, applied in water treatment parameter control, heating water/sewage treatment, neutralizing water/sewage treatment, etc., can solve the problems of low production efficiency, large consumption of chemicals, unstable running water, etc. Achieve the effect of improving production efficiency and stable water output

Pending Publication Date: 2019-11-26
DATONG XINCHENG NEW MATERIAL CO LTD
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Problems solved by technology

[0004] Based on the background technology, when treating wastewater, the technical problem of low production efficiency is likely to be caused due to unstable running water and large consumption of chemicals. The present invention proposes a method for treating wastewater from LED chip production

Method used

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Embodiment Construction

[0028] The present invention will be further explained below in conjunction with specific embodiments.

[0029] A kind of LED chip production wastewater treatment method, comprises the following steps:

[0030] S1: Firstly, the generated waste water is transported to the waste water tank in a concentrated manner, so that the waste water is allowed to stand still in the waste water tank, so that the insoluble matter in the waste water is precipitated, and after the standing is completed, a drain pipe is discharged into the reaction tank;

[0031] S2: Put solid powdery sodium hydroxide into the waste water pool to dissolve the sodium hydroxide and water, and then stir the waste water with a stirrer to completely dissolve the sodium hydroxide in the waste water;

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Abstract

The invention belongs to the technical field of wastewater treatment and in particular discloses an LED (light emitting diode) chip production wastewater treatment device. Aiming at the problem that the production efficiency is low as operation water discharge is instable and the medicine consumption is large in conventional wastewater treatment, the invention discloses a scheme that the method comprises the following steps: S1, firstly, centrally conveying produced wastewater into a wastewater tank, allowing the wastewater to stand in the wastewater tank to precipitate insoluble substances inthe wastewater, and discharging the wastewater into a reaction tank through a water discharge tube after standing is completed; and S2, putting sodium hydroxide of solid powder into the wastewater tank, and dissolving the sodium hydroxide into the water. Through steps of precipitation, evaporation, condensation, filtration and the like of wastewater, the wastewater can be treated, and the purposeof up-to-standard emission of the wastewater can be achieved; and as each treatment process of the technical scheme is independently operated, dosages can be accurately controlled, a stable water outlet quantity can be ensured, and the production efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a method for treating wastewater from LED chip production. Background technique [0002] The manufacturing process of integrated circuit chips is complicated, including silicon wafer cleaning, chemical vapor deposition, etching and other processes, which are repeatedly interleaved. A large number of chemical reagents such as HF, H2SO4, NH3・H2O, etc. are used in production. Nowadays, production wastewater treatment is divided into : Ammonia-containing wastewater treatment system, fluorine-containing wastewater treatment system, CMP grinding wastewater treatment system and acid-base wastewater treatment system. [0003] Among them, in the CMP grinding wastewater treatment system and the acid-base wastewater treatment system, when the wastewater is treated, the running water is unstable and the consumption of chemicals is large, so it is easy to cause low production eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10
CPCC02F1/001C02F1/04C02F1/50C02F1/66C02F9/00C02F2001/007C02F2209/06
Inventor 马兴华
Owner DATONG XINCHENG NEW MATERIAL CO LTD
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