A pretreatment method for removing antibiotics from fermented antibiotics pharmaceutical wastewater

A treatment method and technology for pharmaceutical wastewater, which is applied in the directions of water/sewage multi-stage treatment, heating water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of no antibiotic treatment, secondary pollution, high treatment cost, etc.

Active Publication Date: 2017-06-09
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common antibiotic pretreatment technology at home and abroad does not treat the antibiotic itself, and a large amount of chemical reagents are added, but the desired effect cannot be achieved, the treatment cost is high, and it is easy to cause secondary pollution

Method used

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  • A pretreatment method for removing antibiotics from fermented antibiotics pharmaceutical wastewater
  • A pretreatment method for removing antibiotics from fermented antibiotics pharmaceutical wastewater
  • A pretreatment method for removing antibiotics from fermented antibiotics pharmaceutical wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] 1. Preparation of antibiotic simulated wastewater

[0062] Dissolve 100 mg of the standard substance of tetracycline antibiotic tetracycline hydrochloride in 1 L of ultrapure water to prepare tetracycline simulated wastewater with a concentration of tetracycline hydrochloride of 100 mg / L, wherein the theoretical concentration of tetracycline is 92 mg / L;

[0063] 2. Adjust the pH value of antibiotic wastewater

[0064] Add alkaline pH regulator NaOH to the tetracycline simulated wastewater to adjust the pH of the wastewater to 11.0;

[0065] Part of the specific embodiments of the present invention In addition to using NaOH to adjust the pH of antibiotic pharmaceutical wastewater to be alkaline, other alkaline substances such as KOH are applicable to the present invention.

[0066] Fermentation antibiotic pharmaceutical wastewater enters the adjustment tank after sedimentation and separation to adjust the pH of the wastewater to an appropriate value. There are great di...

Embodiment 2

[0073] Except that the pH value of the tetracycline simulated wastewater was adjusted to 11.0 in the step of "adjusting the pH value of antibiotic wastewater"; the step of "hydrolysis treatment" did not add a catalyst, the rest was the same as that of Example 1. The results of sampling time interval, tetracycline concentration and wastewater titer are shown in Table 2.

[0074] Changes in tetracycline and titer in tetracycline wastewater under table 2pH=11 without catalyst

[0075] time Tetracycline concentration (mg / L) Wastewater titer (U / mL) 0min 92.4 89.7

[0076] 15min 88.9 86.6 30min 78.3 78.6 60min 70.4 68.1 90min 63.6 64.8 120min 56.6 50.4 180min 49.1 42.3 240min 44.1 30.5 360min 28.1 24.3

Embodiment 3

[0078] 1. Preparation of antibiotic simulated wastewater

[0079] The preparation of tetracycline simulated wastewater is the same as in Example 1.

[0080] 2. Adjust the pH value of antibiotic wastewater

[0081] Add the acidic pH regulator HCl to the tetracycline simulated wastewater to adjust the pH of the wastewater to 5.0;

[0082]Part of the specific embodiment of the present invention is except adopting HCl to adjust the pH of antibiotic pharmaceutical wastewater to be acidic, other acidic substances such as H 2 SO 4 、HNO 3 etc. are applicable to the present invention.

[0083] 3. Hydrolysis treatment

[0084] Put 500ml of tetracycline simulated wastewater after adjusting the pH value into the reactor, then seal the reactor and keep the temperature at 85°C, and carry out the hydrolysis reaction for 6h (ie 360min);

[0085] Sampling time, sampling amount, detection method are identical with embodiment 1. The results of sampling time interval, tetracycline concentr...

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Abstract

The invention provides a pretreatment method for removing antibiotics from fermented antibiotics pharmaceutical wastewater. The method mainly removes antibiotics from antibiotic pharmaceutical wastewater by adjusting the pH value of wastewater and high-temperature catalytic hydrolysis, and the pharmaceutical wastewater from which antibiotics are removed can be connected to Subsequent biochemical treatment process for treatment. The method of the invention can basically remove antibiotics in pharmaceutical wastewater, reduce the inhibition of high-concentration antibiotics on microorganisms, reduce the difficulty of subsequent biochemical treatment of the wastewater, and reduce the generation of drug-resistant bacteria and drug-resistant genes in subsequent biochemical treatments.

Description

technical field [0001] The invention relates to the field of pharmaceutical wastewater treatment, in particular to a pretreatment method for removing antibiotics from fermented antibiotic pharmaceutical wastewater. Background technique [0002] Antibiotic pharmaceutical wastewater is a type of high-concentration organic wastewater with high pollution load, high toxicity, and strong antibacterial properties. It mainly comes from waste fermentation liquid or synthetic waste liquid after raw material extraction in the antibiotic production process. This type of wastewater, especially fermented antibiotic pharmaceutical wastewater, has a large amount of medium components or organic raw materials remaining, and has the characteristics of large water volume, high COD (10g / L-80g / L) and high TSS (0.5-2.5g / L) . Long-term operation experience at home and abroad proves that compared with physical and chemical technology, the antibiotic pharmaceutical wastewater treatment technology wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/02C02F9/10C02F9/14
Inventor 张昱易其臻丁然高迎新杨敏
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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