Recycling method of abamectin fermented waste water

A technology of abamectin and fermentation wastewater, applied in the directions of fermentation, chemical instruments and methods, microorganism-based methods, etc., and can solve problems such as water resources waste, environmental pollution, environmental impact, etc.

Active Publication Date: 2010-03-10
内蒙古拜克生物有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will inevitably cause an impact on the environment, and even cause environmental pollution, and at the same time cause a waste of water resources.

Method used

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  • Recycling method of abamectin fermented waste water

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Comparison scheme
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Embodiment 1

[0017] Embodiment 1: When producing Abamectin with treated and untreated Abamectin fermented waste water, the fermentation titer comparison.

[0018] Experimental group a: tap water was used to culture Streptomyces avermanii.

[0019] Experimental group b: Streptomyces avermanii was cultured with abamectin fermented wastewater without any treatment.

[0020] Experimental group c: the abamectin fermentation wastewater was treated by the following method and then reused for the cultivation of Streptomyces avermanii.

[0021] Treatment method: the wastewater is first filtered with a plate and frame with a filter cloth pore size of 10 microns; the filtrate is then filtered with a filter with a pore size less than 2.5 microns; the obtained fine filtrate is mixed with phosphoric acid and sulfuric acid (phosphoric acid: sulfuric acid = 1: 2. Volume ratio) to adjust the pH to 0.5. After heating up to 80°C, keep it warm for 30 minutes, then adjust the pH to 10 with lime milk. Apertur...

Embodiment 2

[0029] 1) press-filter the abamectin fermentation broth fermented for 255-280 hours to obtain a mycelium filter cake and a filtrate, and the resulting filtrate is the abamectin fermentation waste water;

[0030] 2) the abamectin fermentation waste water of step 1) gained is filtered through the filter of 10 microns, 5 microns and 1 micron respectively through aperture;

[0031] 3) Adjust the pH of the avermectin fermentation wastewater in step 2) to 2.5 with a mixture of phosphoric acid and sulfuric acid, then raise the temperature to 90°C, and keep it warm for 35 minutes, then adjust the pH to 12 with milk of lime or sodium hydroxide, and continue to keep warm After 35 minutes, cool and then filter through plate frame and multi-media filter;

[0032] 4) Put the abamectin fermented waste water through step 3) into the fermenter, adjust the pH to 7.5, then add 0.5% glucose, 0.25% ammonium sulfate, 0.01% potassium dihydrogen phosphate, and dihydrogen phosphate by the weight of t...

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Abstract

The invention discloses a recycling method of abamectin fermented waste water, belonging to the technical field of the processing method of antibiotic fermented waste water. The method comprises the following steps: the fermented waste water generated in abamectin production is reused for fermenting to produce the abamectin after being processed by acid, alkali and saccharomycetes. In the recycling method of abamectin fermented waste water of the invention, the abamectin fermented waste water is processed by acid and alkali, and is processed by the saccharomycetes, and the obtained culture solution containing the saccharomycetes can be reused for fermenting to produce abamectin. Experiments prove that the fermented waste water can be used repeatedly after being processed by acid, alkali and saccharomycetes, and does not affect the fermentation valence. The application of the method can significantly improve utilization of water source, reduce environmental pollution, and does not add production cost compared with the routine waste water process method.

Description

technical field [0001] The invention belongs to the technical field of treatment methods for antibiotic fermentation waste water, and in particular relates to the treatment of the abamectin fermentation waste water before being used for abamectin fermentation. Background technique [0002] Abamectin is an agricultural antibiotic, which can be used as both agricultural and veterinary insecticides. It has been widely used in agriculture, forestry insecticide and animal deworming in the world. At present, there are nearly 20 enterprises producing abamectin in my country, with an annual output of nearly 1,000 tons of abamectin. Abamectin is produced by liquid fermentation of Streptomyces avermitilis. At present, the average fermentation level of Avermectin is about 4000ug / ml. On this basis, roughly calculated, every ton of Abamectin (Avm) produced is about If 250 tons of fermentation wastewater is produced, the annual production of 1,000 tons of Avm fermentation wastewater wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/62C02F9/14C12R1/465C12R1/72C12R1/865C02F3/34C02F1/66
Inventor 张文骏储消和陈中兵黄海涛沈建童中伟
Owner 内蒙古拜克生物有限公司
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