Processing method for wastewater from cephalosporin synthesis pharmaceutical production

A technology for production wastewater and treatment methods, which is applied in the field of water treatment, can solve the problems of poor treatment effect of cephalosporin synthetic pharmaceutical production wastewater, and achieve the effect of good wastewater treatment effect, simple process and high treatment load

Inactive Publication Date: 2009-05-20
ZHEJIANG SHUANGYI ENVIRONMENTAL PROTECTION TECH DEV
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Problems solved by technology

Although the above-mentioned wastewater treatment method has a certain treatment effect on general pharmaceutical wastewater, it is not effective for the treatment of cephalosporin synthetic pharmaceutical production wastewater.

Method used

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  • Processing method for wastewater from cephalosporin synthesis pharmaceutical production

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Embodiment 1

[0016] Cephalosporin synthetic pharmaceutical production wastewater 300m3 / d, incoming water COD 4000-7000mg / l, BOD5 50-300mg / l, after the adjustment tank balances the water quality and quantity and adjusts the pH value, aerobic biological treatment is carried out in the contact oxidation tank to remove biochemical Part of the organic matter with better properties. The hydraulic retention time of the contact oxidation tank is 19 hours, the volume load is 3.1kgCOD / m3.d, the effluent COD is 2000-3000mg / l, and the BOD5 is 20-230mg / l; The residence time in the bioreactor is 20 hours, the volume load is 4.5kgCOD / m3.d, the sludge concentration is 6-10g / l, the membrane flux is 10L / m2.h, and the membrane filtration resistance is less than 30kPa; the effluent COD≤ 100mg / l, BOD5≤10mg / l, SS below the detection limit, turbidity≤0.4NTU.

[0017] The ultrafiltration membrane in the membrane bioreactor is made of PVDF, the membrane flux is 10L / m2.h, the initial resistance of membrane filtrat...

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Abstract

The invention relates to a treatment method of wastewater produced by cephalo synthetic drug manufacturing, which mainly comprises three parts, namely, aerobe catalytic oxidation, anoxia hydrolytic acidification and a membrane biological reactor; firstly, organic matters having better biodegradability in the wastewater are removed in a biological contact oxidation pond, then biological hydrolytic acidification is carried out in an anoxic pond, and then the wastewater flows into the membrane biological reactor to carry out final aerobic Bioremediation; the wastewater after the treatment passes through an ultrafiltration membrane in the membrane biological reactor and is pumped out by a pump and then discharged to an effluent pipe after reaching standards or recycled to the production technology; the membrane biological reactor consists of an aeration zone and a membrane filtering zone, wherein, the aeration zone carries out aeration by adopting a disc-shaped millipore aeration head, the ultrafiltration membrane is positioned in the membrane filtering zone, the organic matters in the wastewater after being treated with aerobe contact oxidation and anoxia hydrolytic acidification are basically biodegraded, the wastewater is pumped out through the ultrafiltration membrane, and microbes in the reactor are blocked in the reactor. The method has the advantages of simple technique, good effect of treating wastewater, small occupation area, and low treatment cost, and is especially suitable for the wastewater produced by the cephalo synthetic drug manufacturing.

Description

technical field [0001] The invention relates to a method for treating waste water produced by cephalosporin synthetic pharmaceuticals, and belongs to the technical field of water treatment. Background technique [0002] Cephalosporin synthetic pharmaceutical production wastewater is a high-concentration refractory biodegradable wastewater due to its complex composition, high concentration of organic matter, and poor biodegradability. At present, there is no mature and reliable treatment technology with reasonable investment and operating costs at home and abroad. Concentrated incineration, chemical oxidation and wet oxidation technologies are commonly used abroad to treat this kind of wastewater. Concentrated incineration and wet oxidation technologies have good treatment effects and basically do not produce secondary pollution, but the investment is huge, and domestic enterprises are basically unable to afford it. Therefore, there is no engineering application in China; alt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 陈吕军李荧
Owner ZHEJIANG SHUANGYI ENVIRONMENTAL PROTECTION TECH DEV
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