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Method of ordering mesoporous CO3O4 to activate monopersulfate to treat antibiotic wastewater

A technology of persulfate and antibiotics, applied in water/sewage treatment, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve the problems of difficult catalyst recovery, secondary environmental pollution, low catalytic performance of monopersulfate, etc. , to achieve the effect of speeding up the transfer, reducing operating costs, and convenient operation

Active Publication Date: 2019-04-30
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to improve the difficulty of catalyst recovery in the homogeneous monopersulfate catalytic system and the possibility of causing secondary pollution to the environment and the heterogeneous spinel-type Co 3 o 4 The problem of low catalytic performance for monopersulfate

Method used

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  • Method of ordering mesoporous CO3O4 to activate monopersulfate to treat antibiotic wastewater
  • Method of ordering mesoporous CO3O4 to activate monopersulfate to treat antibiotic wastewater

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specific Embodiment approach 1

[0039] Specific embodiment one: In this embodiment, a method for treating antibiotic wastewater by activating monopersulfate with novel ordered mesoporous cobalt tetroxide is carried out according to the following steps:

[0040] 1. Preparation of novel ordered mesoporous Co 3 o 4 .

[0041] ①Add KIT-6 template to Co(NO 3 ) 2 ·6H 2 O solution, stirred at room temperature for 1 h;

[0042] The KIT-6 template, Co(NO 3 ) 2 ·6H 2 The molar ratio of O is 1:1;

[0043] The Co(NO 3 ) 2 ·6H 2 The molar concentration of O solution is 0.84M;

[0044] ②Dry the stirred solution at 80°C to obtain a pink solid, transfer the solid to a crucible, and place it in a muffle furnace at 200°C for 6 hours;

[0045] As described in step 1 ②, move the pink solid into the crucible, place it in the muffle furnace and burn it at 200°C for 6 hours, and the heating rate of the muffle furnace is 1°C / min;

[0046] ③ Grind the brown solid after roasting in step 1 ② fully and add it to the Co(NO...

specific Embodiment approach 2

[0070] Embodiment 2: This embodiment differs from Embodiment 1 in that the concentration of the target pollutant chloramphenicol in step 2 is 10 μM to 30 μM, and other steps and parameters are the same as Embodiment 1.

specific Embodiment approach 3

[0071] Embodiment 3: This embodiment differs from Embodiments 1 to 2 in that the concentration of the target pollutant chloramphenicol in step 2 is 30 μM to 50 μM, and other steps and parameters are the same as those in Embodiments 1 to 2.

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Abstract

The invention discloses a method for treating antibiotic wastewater by using ordered mesopore Co3O4 to activate peroxymonosulfate and aims at solving the problem of lower efficiency in a traditional method for catalyzing peroxymonosulfate by spinel type Co3O4. The method is realized by the following steps: firstly, preparing novel ordered mesopore Co3O4; secondly, mixing the peroxymonosulfate with an aqueous solution containing antibiotics; thirdly, adjusting the pH value of the solution and transferring the mixed solution into a brown shaking flask; fourthly, feeding the ordered mesopore Co3O4; fifthly, adopting a high-speed centrifuging or filtering method to separate the ordered mesopore Co3O4, thus finishing the method for treating the antibiotic wastewater by using the novel ordered mesopore Co3O4 to activate the peroxymonosulfate. By using the method for cooperating the novel ordered mesopore Co3O4 with the peroxymonosulfate, high-efficiency treatment of the antibiotic wastewater can be realized, and the removal rate of the antibiotics exceeds 95 percent; in the process, the dissolution rate of cobalt ions is extremely low, so that the pollution to the environment is reduced; a process is simple and convenient in operation.

Description

technical field [0001] The present invention relates to the treatment method of refractory antibiotic wastewater, in particular to an ordered mesoporous Co 3 o 4 Method for activating monopersulfate to treat antibiotic-based wastewater. Background technique [0002] At present, pharmaceuticals and personal care products (PPCPs) have become an emerging environmental pollutant, and antibiotics, as a typical pollutant in PPCPs, appear frequently and in high concentrations in water quality testing. In China, antibiotics account for 70% of the total drug production, about 33000t. Compared with persistent organic pollutants (POPs), antibiotics exist in the environment for a short time. However, due to continuous use in human disease treatment, livestock and poultry farming and aquaculture, antibiotics continue to enter the environment, resulting in " Therefore, antibiotics are called "false" persistent pollutants, and they can cause antibiotic resistance in the surrounding envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/72C02F1/28B01J27/02C02F101/36
CPCB01J27/02C02F1/281C02F1/725C02F2101/36
Inventor 邓靖冯善方马晓雁倪永炯卢遇安葛勇建
Owner ZHEJIANG UNIV OF TECH
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