A pharmaceutical and chemical wastewater treatment process

A technology of chemical sewage and treatment process, applied in the field of water pollution treatment, can solve the problem that ordinary sewage treatment process is not suitable for chemical and medical sewage treatment, and achieve the effect of reducing risk and ensuring purity

Active Publication Date: 2019-01-25
中广核环保产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of the present invention is to address the deficiencies of the prior art, to provide a pharmaceutical and chemical sewage treatment process, which solves the problem that ordinary sewage treatment processes are not suitable for chemical and pharmaceutical sewage treatment, and achieves the goal of highly purifying chemical and pharmaceutical sewage. Effect

Method used

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  • A pharmaceutical and chemical wastewater treatment process
  • A pharmaceutical and chemical wastewater treatment process
  • A pharmaceutical and chemical wastewater treatment process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1-4 Shown, a kind of pharmaceutical chemical industry sewage treatment process comprises the following steps:

[0032] 1. Adjust the pH: put the sewage into the three-hole container, put the three-hole container in the cooling pool, connect the reflux cooling device and the tail gas treatment device above the container; slowly add the acid regulator 1mol / L dilute hydrochloric acid into the three empty bottles , the filtrate is adjusted to PH 2, the Fe-Fenton reagent is slowly added with stirring, until no precipitation occurs; filter, separate the filtrate and filter cake, add the NaOH solution of alkaline regulator 1mol / l in the filtrate, the solution is adjusted to PH10, Precipitation occurs in the filtrate, add diatomaceous earth to filter, collect the filtrate, and adjust the filtrate to neutrality with 1mol / L dilute hydrochloric acid;

[0033] 2. Add an appropriate amount of ethyl acetate to the filtrate treated in step 1 to extract and separate th...

Embodiment 2

[0041] Such as Figure 1-4 Shown, pharmaceutical chemical industry wastewater treatment process of the present invention comprises the following steps:

[0042] 1. Adjust the pH: put the sewage into the three-hole container, place the three-hole container in the cooling pool, connect the reflux cooling device and the tail gas treatment device above the container; slowly add the acid regulator 1mol / L into the three-empty bottle Dilute hydrochloric acid, adjust the filtrate to PH 3, stir and slowly add Fe-Fenton reagent, to no precipitation; filter, separate the filtrate and filter cake, add the NaOH solution of alkaline regulator 1mol / l in the filtrate, the solution is adjusted to PH 12, there is precipitation in the filtrate, add diatomaceous earth to filter, collect the filtrate, and adjust the filtrate to neutrality with 1mol / L dilute hydrochloric acid;

[0043] 2. Add an appropriate amount of ethyl acetate to the filtrate treated in step 1 to extract and separate the aqueo...

Embodiment 3

[0051] Such as Figure 1-4 Shown, pharmaceutical chemical industry wastewater treatment process of the present invention comprises the following steps:

[0052] 2. Adjust the pH: put the sewage into the three-hole container, put the three-hole container in the cooling pool, connect the reflux cooling device and the tail gas treatment device above the container; slowly add the acid regulator 1mol / L dilute hydrochloric acid into the three empty bottles , adjust the filtrate to PH2.5, stir and slowly add Fe-Fenton reagent until no precipitation occurs; filter, separate the filtrate and filter cake, add the NaOH solution of alkaline regulator 1mol / l to the filtrate, and adjust the solution to PH 11. There is precipitation in the filtrate, add diatomaceous earth to filter, collect the filtrate, and adjust the filtrate to neutrality with 1mol / L dilute hydrochloric acid;

[0053] 2. Add an appropriate amount of ethyl acetate to the filtrate treated in step 1 to extract and separate ...

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Abstract

The invention discloses a medicine chemical wastewater treatment process which includes the steps: firstly, acidity and alkalinity adjustment; secondly, extraction; thirdly, primary filtration; fourthly, backflow and liquid separation; fifthly, discoloration treatment; sixthly, flocculent precipitation; seventhly, fine filtration; eighthly, water quality detection. According to the medicine chemical wastewater treatment process, wastewater is treated step by step, on one hand, potential hazards of the wastewater containing complex dangerous goods are reduced, on the other hand, treatment processes are exquisite, linked and matched with each other, and the purity of treated water can be ensured.

Description

technical field [0001] The invention relates to the field of water pollution treatment, in particular to a chemical sewage treatment process. Background technique [0002] In the production of the pharmaceutical industry, the composition of the wastewater is very complex, which contains refractory organic substances, and there are certain chemical corrosion and toxicity, which has caused great harm to the environment, because the production process of the pharmaceutical and chemical industry is relatively complicated, involving a variety of solvents And reactants, especially some toxic organic solvents, so its recycling process is more complicated than ordinary sewage treatment, and the requirements are stricter. The invention patent with the publication number CN 105836819 A discloses a pharmaceutical production sewage treatment mechanism, which mainly includes a liquid compressor, a pressure device, a dust collector, a regenerator, an air analysis instrument, a medium-effi...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C02F9/10C02F103/34
CPCC02F1/001C02F1/04C02F1/26C02F1/444C02F1/56C02F1/66C02F1/722C02F1/725C02F9/00C02F2001/007C02F2103/343C02F2305/026
Inventor冯婷婷
Owner中广核环保产业有限公司