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Formalin liquid waste treatment system and method

A waste liquid treatment system, formalin technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem that formalin waste liquid cannot be discharged directly problems, to achieve the effect of reducing costs

Active Publication Date: 2016-01-20
张家港市华亿科教设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the country's requirements for sewage discharge standards become more and more stringent, formalin waste liquid cannot be discharged directly. Can not be sent directly to the sewage treatment plant for treatment

Method used

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  • Formalin liquid waste treatment system and method
  • Formalin liquid waste treatment system and method
  • Formalin liquid waste treatment system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1 to Figure 4 As shown, a formalin waste liquid treatment system, including

[0038] A collection storage tank 1 is provided with a first waste liquid inlet 2 and a first waste liquid outlet 3 on the collection storage tank 1, and the first waste liquid inlet 2 is communicated with a formalin waste liquid collection pipeline; The forest waste liquid collection pipe is directly connected to the sewage pipe of the formalin waste liquid discharge unit, for example, the formalin sewage pipes of hospitals and medical colleges are collected into the collection storage tank 1 . The bottom of the collection storage tank 1 is provided with a blowdown outlet 14, and a blowdown valve is installed at the blowdown outlet 14 and is connected with a blowdown pipeline 13 through the blowdown valve, and the blowdown pipeline 13 communicates with the blowdown system.

[0039] Such as figure 1 As shown, the top of the collection storage tank 1 is provided with an overflow ...

Embodiment 2

[0057] A kind of formalin waste liquid treatment method, it comprises the following steps:

[0058] A, the formalin waste liquid is uniformly collected in the collection storage tank 1;

[0059] B, the formalin waste liquid in the collection storage tank 1 is transported to the allocation box 15 for allocation, adding calcium hydroxide and polyacrylamide as catalyst and stirring and mixing, polyacrylamide: calcium hydroxide: the mol ratio of formaldehyde is 1:10 6 : 5×10 6 The addition time of calcium hydroxide and polyacrylamide is before the formalin waste liquid is transported to the mixing box 15.

[0060] C. Send the formulated formalin waste liquid to the polysaccharide reaction in the reaction tank 21, heat the formalin waste liquid in the reaction tank 21, the temperature rise rate is 0.5°C / min, stir and mix during the heating process, Stop heating when the temperature rises to 60°C, and keep warm for 60 minutes; the top of the reaction tank 21 is provided with a pr...

Embodiment 3

[0064] This embodiment is basically the same as Embodiment 2, except that the parameters are adjusted.

[0065] A kind of formalin waste liquid treatment method, it comprises the following steps:

[0066] A, the formalin waste liquid is uniformly collected in the collection storage tank 1;

[0067] B, the formalin waste liquid in the collection storage tank 1 is transported to the allocation box 15 for allocation, adding calcium hydroxide and polyacrylamide as catalyst and stirring and mixing, polyacrylamide: calcium hydroxide: the mol ratio of formaldehyde is 1: 3×10 6 : 20×10 6 The addition time of calcium hydroxide and polyacrylamide is before the formalin waste liquid is transported to the mixing box 15.

[0068] C. Send the formulated formalin waste liquid to the polysaccharide reaction in the reaction tank 21, heat the formalin waste liquid in the reaction tank 21, the temperature rise rate is 3°C / min, stir and mix during the heating process, Stop heating when the temp...

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Abstract

The invention discloses a formalin liquid waste treatment system. The system comprises a collecting storage tank. A distributing box and the collecting storage tank are communicated through a first conveying pipeline, the distributing box is provided with a first stirring device, and a catalyst adding opening is communicated with a catalyst adding system. A reaction tank is provided with a recycle mixing pipeline and is communicated with the distributing box through a second conveying pipeline, and the reaction tank is further provided with a first heating device. A third conveying pipeline is arranged between a Fenton oxidation tank and the reaction tank. The Fenton oxidation tank is communicated with a hydrogen peroxide adding system and a ferrous sulfate adding system PH value adjusting fluid adding system. The Fenton oxidation tank is provided with a PH value online detector and a second heating device. A second stirring device is arranged in the Fenton oxidation tank. The treatment system can meet the using requirement of formalin emission units such as a hospital and a medical school, formaldehyde in formalin can be fully degraded, remaining organic pollutants after degradation can be treated, and thus drained water can meet the national standard.

Description

technical field [0001] The invention relates to a formalin waste liquid treatment system, and also relates to a formalin waste liquid treatment method. Background technique [0002] Formalin is a commonly used embalming agent in hospitals or medical schools. For example, in medical schools, a large amount of formalin is used to process corpses in anatomy teaching, and a large amount of formalin is produced in hospitals and medical schools. Forest waste. As the country's requirements for sewage discharge standards become more and more stringent, formalin waste liquid cannot be discharged directly. It cannot be sent directly to the sewage treatment plant for treatment. Therefore, the treatment of formalin waste produced by hospitals and medical schools is more urgent. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a formalin waste liquid treatment system, which can meet the requirements of formalin discharge un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F101/34
Inventor 陆志萍黄晓祥陆惠良顾云蕾
Owner 张家港市华亿科教设备有限公司
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