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Pharmacy wastewater preprocessing system, method, and catalyst

A pharmaceutical wastewater, pretreatment technology, applied in water/sewage treatment, natural water treatment, special compound water treatment, etc., can solve problems such as no good solution, to improve hydroxyl utilization efficiency, strong impact resistance, increase Effect of contact area

Active Publication Date: 2019-01-15
LIAONING INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is still no good solution for the refractory wastewater generated in the pharmaceutical process

Method used

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  • Pharmacy wastewater preprocessing system, method, and catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 is used for the system of pharmaceutical wastewater pretreatment

[0037] The system for the pretreatment of pharmaceutical wastewater according to the present invention includes: a reservoir 100, which includes a water inlet 101 and a water outlet 102, and the level of the water inlet 101 is lower than the level of the water outlet 102, so as to Facilitate the settling of particulate matter. A transparent upper cover 103 is provided on the top of the reservoir 100. The transparent upper cover 103 may be made of quartz or plexiglass to have better light transmission, improve the transmittance of visible light and ultraviolet light, and improve the oxidation efficiency. A light source 106 is arranged above the transparent upper cover 103, and the light source 106 is selected from one or both of fluorescent lamps and ultraviolet light lamps. Therefore, the method of aeration can be appropriately selected according to the type and concentration of pharmaceutic...

Embodiment 2

[0039] Embodiment 2 catalyst and preparation method thereof

[0040] The oxidation tube of the pharmaceutical wastewater treatment system according to the present invention is filled with a catalyst, and the catalyst is preferably a supported catalyst. Among them, the supported catalyst is prepared by using a material with a large specific surface area as a carrier, and the nano-heteropolyacid salt is loaded on the carrier by an impregnation method, and the carrier is selected from activated carbon, attapulgite, silicon dioxide or zeolite.

[0041] Wherein, the nano-heteropolyacid salt catalyst is prepared by a method comprising the following steps:

[0042] Weigh a certain amount of molybdate and put it in an appropriate amount of distilled water, dissolve it and add it to a certain amount of metavanadate boiling water solution, cool it down, add concentrated sulfuric acid to adjust its pH value below 4, heat the mixture under reflux for 8 hours and slowly Add concentrated s...

Embodiment 3

[0047] (1) Loading a load-type catalyst (10% loading capacity, 2% wastewater treatment quality) with a quality of 1kg into the oxidation tube;

[0048] (2) Pass 50kg of chemical and pharmaceutical wastewater (COD 12000) into the oxidation tube, turn on the ultraviolet light source, control the ozone pressure at 0.09MPa, and mix it thoroughly with ultrasonic waves before entering the oxidation tube. The particle size of the ozone bubbles is controlled at 100nm-2μm between;

[0049] (3) Turn on the gas recovery and circulation device, collect the unreacted ozone and enter the bubble generating device to realize recycling;

[0050] (4) After the wastewater reacts in the catalytic oxidation tube for 80 minutes, the COD of the water is detected to be 1530 mg / L, and it enters the subsequent treatment process.

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Abstract

The invention discloses a pharmacy wastewater preprocessing system, which comprises a reservoir. The reservoir comprises a water inlet and a water outlet. The horizontal height of the water inlet is lower than the horizontal height of the water outlet. The top of the reservoir is provided with a transparent upper cover. A light source is arranged above the transparent upper cover. The inner wall of the reservoir is provided with a plurality of oxidation pipes and bubble generators. The oxidation pipes are parallel to each other. The bubble generators are communicated to the oxidation pipes insequence through pipelines. The invention also provides a pharmacy wastewater preprocessing method. The provided system and method have the advantages that the device is simple, the processing time isshort, the cost is controllable, the system and method can be used to directly process pharmacy wastewater, and the preprocessing efficiency is largely improved.

Description

technical field [0001] The invention relates to the technical field of wastewater pretreatment, in particular to a pharmaceutical wastewater pretreatment system and a method for using the system to pretreat pharmaceutical wastewater, and also provides a catalyst for pharmaceutical wastewater pretreatment. Background technique [0002] In recent years, with the rapid development of the pharmaceutical industry, the proportion of the pharmaceutical industry in the national economy has increased year by year, and it has become an important part of the national industrial system. At the same time, the wastewater produced by pharmaceuticals has become the main source of pollution in many water bodies. On the one hand, pharmaceutical companies are angels who save lives, but on the other hand, they become demons that pollute the environment. There is still no good solution for the refractory wastewater generated in the pharmaceutical process. For the treatment of high-concentration...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/74C02F1/78C02F1/30C02F1/32C02F103/34
CPCC02F1/30C02F1/32C02F1/725C02F1/74C02F1/78C02F2103/343C02F2305/10
Inventor 刘通安长伟贺凤伟张丹凤吴春佳任美琪冯悦石伟民周丰发张浩
Owner LIAONING INST OF SCI & TECH
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