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New method for processing antibiotic wastewater

A technology for antibiotic wastewater and wastewater, which is applied in anaerobic digestion treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of high impact load, difficult biological treatment, and unsatisfactory treatment effect, so as to improve activity, The effect of enhancing the effect

Inactive Publication Date: 2010-02-24
SHANGHAI UNIV
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Problems solved by technology

SS is generally 500-25000mg / L, which is mainly the residual culture substrate of fermentation and the microbial mycelia produced by fermentation. In addition, it also contains a large amount of toxic substances such as sulfate and refractory antibiotics. In addition, in most cases, antibiotic wastewater It is intermittent discharge with high impact load, which brings great difficulties to biological treatment
Because the existing methods are not ideal enough, there is an urgent need to research and develop new processing technologies.

Method used

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  • New method for processing antibiotic wastewater
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Embodiment

[0016] In this embodiment, the flow process of treating antibiotic wastewater can be found in figure 1 .

[0017] The process includes the following steps:

[0018] (1) Coagulation pretreatment of antibiotic wastewater: first, a certain amount of polyaluminum chloride is added to the pretreated antibiotic wastewater for coagulation pretreatment; L; and adjust the pH value to 7.0; the coagulation pretreatment and sedimentation time is 3 hours; the COD concentration in the treated wastewater is reduced by 30.80%, and the turbidity is <10NTU;

[0019] (2) Adding glucose as a co-metabolism substrate: adding glucose to the waste water with a mass concentration of 1500 mg / L; adding glucose nutrients is to help the growth and reproduction of degrading bacteria and improve the operating performance of the treatment system;

[0020] (3) Use the traditional upflow anaerobic sludge bed-aerobic membrane bioreactor (UASB-MBR) combination device to treat antibiotic wastewater: send the ab...

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Abstract

The invention relates to a method for processing antibiotic wastewater, belonging to the technical field of water processing of environmental engineering. The invention uses an up anaerobic sludge blanket-aerobic membrane bioreactor (UASB-MBR) integrated device to perform biological process on the antibiotic wastewater. Firstly, aluminum polychlorid is put in antibiotic wastewater for coagulationpreprocess; COD concentration of the wastewater is lowered by 30.8%, and turbidity is smaller than 10 NTU; then the UASB-MBR integrated device is used to further deep process to control the hydraulicretention time of the system to be 20.5 hours, COD average removal ratio can reach 86.56%, and mixed liquor suspended solid (MLSS) is 3000-4000mg / l; the effective removal ratio of the integrated device is 80-85%. Water yielding COD can reach the National Bio-pharmaceutical Industrial Wastewater Discharge Standard (GB8978-1996) after being processed by the integrated device, and the discharge standard is 300mg / l.

Description

technical field [0001] The invention relates to a method for treating antibiotic waste water, which belongs to the technical field of environmental engineering water treatment. Background technique [0002] Antibiotics are one of the most widely used drugs. The wastewater produced in the production process has complex components, including a large number of intermediate metabolites, surfactants, and high-concentration acids, alkalis, and various organic substances remaining in the extraction and separation process. . The pH value changes greatly, the temperature is high, and it has color and peculiar smell. The COD concentration is generally 5000-80000mg / L. SS is generally 500-25000mg / L, which is mainly the residual culture substrate of fermentation and the microbial mycelia produced by fermentation. In addition, it also contains a large amount of toxic substances such as sulfate and refractory antibiotics. In addition, in most cases, antibiotic wastewater It is intermitte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/30C02F3/34C02F1/52C02F3/28C02F3/10C02F1/44
Inventor 邹联沛周文琪王国平霍耀东汪艳洁
Owner SHANGHAI UNIV
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