Process and device for treating tetracycline antibiotic wastewater

A technology of antibiotic wastewater and tetracyclines, applied in natural water treatment, water/sewage multi-stage treatment, biological water/sewage treatment, etc., can solve the problems of easy oxidation of iron powder, waste of iron powder, and reduction of iron-carbon micro-electrolysis capacity, etc. , to achieve the effects of enhanced adsorption, longer service life, and shorter start-up time

Active Publication Date: 2015-03-25
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the direct addition of iron powder and carbon powder in the technical implementation, the iron powder is easily oxidized, a part of the iron powder is wasted, and the iron-carbon micro-electrolysis capacity is reduced.

Method used

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  • Process and device for treating tetracycline antibiotic wastewater

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Effect test

Embodiment 1

[0044] A process for treating tetracycline antibiotic wastewater, comprising a pretreatment step and an anaerobic / aerobic treatment step;

[0045] The pretreatment step uses iron-carbon micro-electrolytic ceramsite as a filler for electrolytic treatment; the particle size of the iron-carbon micro-electrolytic ceramsite is 5-7cm, and the particle density is 1200-1400kg / m 3 , bulk density 850kg / m 3 , the packing height is 100cm, the hydraulic retention time is 4h, and the gas-water volume ratio is 5:1;

[0046] The described anaerobic / aerobic treatment step is to carry out anaerobic treatment and aerobic treatment successively to the wastewater after the pretreatment step, and the anaerobic treatment uses fly ash ceramsite as filler, and the particle diameter of fly ash ceramsite is 15-20mm, particle density 850-950kg / m 3 , bulk density 400kg / m 3 , the height of the filler is 100cm; the aerobic treatment uses sludge ceramsite as the filler, the particle size is 5-10mm, and th...

Embodiment 2

[0049] A process for treating tetracycline antibiotic wastewater, comprising a pretreatment step and an anaerobic / aerobic treatment step;

[0050] The pretreatment step uses iron-carbon micro-electrolytic ceramsite as a filler for electrolytic treatment; the particle size of the iron-carbon micro-electrolytic ceramsite is 5-7cm, and the particle density is 1200-1400kg / m 3 , bulk density 950kg / m 3 , the packing height is 80cm, the hydraulic retention time is 8h, and the gas-water volume ratio is 8:1;

[0051] The described anaerobic / aerobic treatment step is to carry out anaerobic treatment and aerobic treatment successively to the wastewater after the pretreatment step, and the anaerobic treatment uses fly ash ceramsite as filler, and the particle diameter of fly ash ceramsite is 15-20mm, particle density 850-950kg / m 3 , bulk density 500kg / m 3 , the height of the filler is 60cm; the aerobic treatment uses sludge ceramsite as the filler, the particle size is 5-10mm, and the ...

Embodiment 3

[0053] The technique that is used to process tetracycline antibiotic waste water as described in embodiment 1, difference is:

[0054] In the pretreatment step, the waste water is refluxed, and the reflux ratio is 2:1; the packing is backwashed, and the backwashing cycle is 3 days;

[0055] During the process of anaerobic treatment and aerobic treatment, the waste water is refluxed, the reflux ratio is 2:1, and the packing is backwashed, and the backwashing period is 5 days.

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Abstract

The invention discloses a process and a device for treating tetracycline antibiotic wastewater. The process comprises a pretreatment step and an anaerobic/aerobiotic treatment step; the pretreatment step comprises performing electrolytic treatment by taking ferric carbon microelectrolysis ceramsite as a filler; the anaerobic/aerobiotic treatment step comprises orderly performing anaerobic treatment and aerobiotic treatment on the wastewater treated by virtue of the pretreatment step, and fly ash ceramsite is taken as a filler for the anaerobic treatment, and sludge ceramsite is taken as a filler for the aerobiotic treatment. The invention also discloses the device for the process. According to the process and the device for treating the tetracycline antibiotic wastewater, the multi-stage treatment process is simplified, the capital investment is greatly reduced and the capital is saved; and the own characteristics of the wastewater are thoroughly utilized, and the dosage of a chemical agent is reduced, and therefore, secondary pollution is reduced while the cost is saved.

Description

technical field [0001] The invention relates to a process and a device for treating tetracycline antibiotic wastewater, belonging to the technical field of wastewater treatment. Background technique [0002] Tetracycline pharmaceutical wastewater belongs to high-concentration organic wastewater, with COD as high as 18000mg / L, BOD as 6850mg / L, containing 5000-7000mg / L oxalic acid, and more than 2000mg / L nitrogen. The wastewater is acidic. In addition, wastewater contains a large amount of antibiotic substances that inhibit microorganisms, and the concentration of residual tetracycline is between 0.7-1g / L, while the content of tetracycline in the crystallization mother liquor during production is as high as 1.5g / L, which has poor biodegradability and is generally difficult to directly biochemical treatment. At the same time, the chromaticity of the waste water is relatively high, and the crystallization mother liquor is dark yellow, and the chromaticity is between 1000-1600 t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F3/005C02F3/301C02F9/00C02F2103/343
Inventor 岳钦艳杨昆仑高宝玉金杨
Owner SHANDONG UNIV
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