Processing method for wastewater from cephalosporin synthesis pharmaceutical production

A technology for producing wastewater and treating method

Inactive Publication Date: 2011-04-06
ZHEJIANG SHUANGYI ENVIRONMENTAL PROTECTION TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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
  • Processing method for wastewater from cephalosporin synthesis pharmaceutical production

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Experimental program
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Embodiment 1

[0014] Cephalosporin synthetic pharmaceutical production wastewater 300m 3 / d, incoming water COD 4000-7000mg / l, BOD 5 50-300mg / l, after balancing the water quality and volume in the regulating tank and adjusting the pH value, aerobic biological treatment is carried out in the contact oxidation tank to remove some organic substances with good biodegradability. The hydraulic retention time of the contact oxidation tank is 19 hours, and the volume load is 3.1kgCOD / m 3 .d, effluent COD2000-3000mg / l, BOD 5 20-230mg / l; the effluent from the contact oxidation tank enters the anoxic tank and the membrane bioreactor, the residence time of the wastewater in the membrane bioreactor is 20 hours, and the volume load is 4.5kgCOD / m 3 .d, the sludge concentration is 6-10g / l, the membrane flux is 10L / m 2 .h, membrane filtration resistance is less than 30kPa; effluent COD≤100mg / l, BOD5≤10mg / l, SS is lower than the detection limit, turbidity≤0.4NTU.

[0015] The ultrafiltration membrane i...

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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 Patents(China)
IPC IPC(8): C02F9/14C02F3/30
Inventor 陈吕军李荧
Owner ZHEJIANG SHUANGYI ENVIRONMENTAL PROTECTION TECH DEV
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