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Method for treating avermectin fermentation wastewater and producing biological feed

A technology of abamectin and fermented wastewater, applied in animal feed, animal feed, applications, etc., can solve the problems of high investment and treatment costs of wastewater equipment, and enterprises are overwhelmed, so as to achieve low operating costs, reduce treatment costs, and equipment The effect of less investment

Active Publication Date: 2015-04-08
内蒙古新威远生物化工有限公司
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AI Technical Summary

Problems solved by technology

In recent years, with the emphasis on environmental governance in our country, the requirements for COD discharge of production wastewater have become higher and higher. However, the investment and treatment costs of wastewater equipment are very high, and many enterprises are overwhelmed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Add 1.8kg of glucose, 0.75kg of yeast extract, 0.06kg of urea, and 0.018kg of potassium dihydrogen phosphate into a 100kg fermenter (Jiangsu Zhenjiang Fengze Biological Engineering Equipment Manufacturing Factory), add tap water to 60kg, and insert 0.05kg of Geotrichum candidum spore suspension, according to 2m 3 Air flow per minute, temperature controlled at 27--28°C, stirring speed at 100 rpm, to cultivate Geotrichum candidum seed liquid.

[0025] 2) The temperature of the abamectin fermentation liquid after the fermentation is completed is raised to 100° C., maintained for 30 min, and then filtered through a plate and frame filter press, and the obtained filtrate is the abamectin fermentation wastewater. The COD of avermectin fermentation wastewater was measured to be 41470.

[0026] 3) Inject 600kg of avermectin fermentation wastewater into a 1000kg fermenter (Jiangsu Zhenjiang Fengze Bioengineering Equipment Manufacturing Factory), and add 0.3kg of urea and 0.1...

Embodiment 2

[0030] 1) Add 240kg of glucose, 100kg of yeast extract, 8kg of urea, and 2.4kg of potassium dihydrogen phosphate into a 12000kg fermenter (Jiangsu General Equipment Manufacturing and Installation Co., Ltd.), add tap water to 8000kg, and insert 6kg-7kg of Geotrichum candidum spores to suspend Liquid, according to 150m 3 Air flow per minute, temperature controlled at 27--28°C, stirring speed at 100 rpm, to cultivate Geotrichum candidum seed liquid.

[0031] 2) The temperature of the abamectin fermentation liquid after the fermentation is completed is raised to 100° C., maintained for 30 min, and then filtered through a plate and frame filter press, and the obtained filtrate is the abamectin fermentation wastewater. The COD of avermectin fermentation wastewater was measured to be 43440.

[0032] 3) Inject 80,000kg of avermectin fermentation wastewater into a 120,000kg fermenter (Jiangsu Zhenjiang Fengze Bioengineering Equipment Manufacturing Factory), and add 40kg of urea and 24...

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Abstract

The invention discloses a method for treating avermectin fermentation wastewater and producing a biological feed, relating to the technical field of treatment for biological fermentation and antibiotic fermentation wastewater. The method comprises the following steps: preparing a seed culture medium from glucose, yeast extract, urea, monopotassium phosphate and water, and introducing a geotrichum candidum spore suspension to culture geotrichum candidum seed liquid; fermenting the avermectin, and adding the urea and monopotassium phosphate into the obtained avermectin fermentation wastewater to obtain a geotrichum candidum fermentation culture medium; introducing the geotrichum candidum seed liquid into the geotrichum candidum fermentation culture medium for fermentation culture of geotrichum candidum; and after the fermentation culture of geotrichum candidum, performing filter pressing with a plate, and drying the obtained filter cake to obtain the geotrichum candidum biological feed. Compared with the prior art, the method has the advantages that the wastewater is treated while the biological feed is produced, the water is saved, the technology is simple and practical, the construction cost and operation cost are low, and the method is environmentally friendly and conforms to the industrial policy.

Description

technical field [0001] The invention relates to the technical field of biological fermentation technology and treatment of antibiotic fermentation wastewater, in particular to a method for producing bio-feed by utilizing geotetramycin to treat abamectin fermentation wastewater. Background technique [0002] Abamectin is an agricultural antibiotic, which can be used as both agricultural insecticide and veterinary insecticide. It has been widely used in agriculture, forestry insecticide and animal deworming in the world. Abamectin is currently one of the most effective biological insect repellants in the world, with the characteristics of high efficiency and low toxicity. It has good application value and market prospect in the production of medicine, agriculture and animal husbandry. The annual production capacity of existing abamectin enterprises in my country has reached as much as 2,000 tons. Abamectin is produced by liquid fermentation of Streptomyces avermanii. The av...

Claims

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Application Information

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IPC IPC(8): A23K1/00
Inventor 高鹤永杨军强李军华陈树行侯东伟孙海洋张强和姜霞
Owner 内蒙古新威远生物化工有限公司
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