Method for producing biological organic fertilizer by using waste water discharged from production of starch with fresh pachyrhizus

A technology of bio-organic fertilizer and starch processing, applied in the direction of organic fertilizer, sewage/sludge fertilizer, application, etc., can solve the problems of increasing the total amount of beneficial microorganisms, reducing the total amount of pollutants, polluting the environment, etc., and achieving outstanding substantive characteristics , the effect of improving soil and saving resources

Inactive Publication Date: 2008-05-21
济南飞天农业科技有限公司
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for producing bio-organic fertilizer by utilizing waste water discharged from processing starch of fresh sweet potatoes, which not only solves the problem of extremely smelly waste water and pollutes the environment, but also increases the total amount of beneficial microorganisms and greatly reduces pollution The total amount of material, and at the same time, the bio-organic fertilizer produced can meet the national bio-organic fertilizer industry standards

Method used

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Examples

Experimental program
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Effect test

example 1

[0026] Example 1: The method for producing bio-organic fertilizer by utilizing the waste water discharged from processing starch of fresh sweet potatoes, the steps are:

[0027] 1) Concentrate and settle the wastewater discharged from fresh sweet potato processing starch, and in a sealed state, pass through the three-stage precipitation of the sedimentation tank. The three-stage precipitation time is 2 hours for the first stage, 4 hours for the second stage and 8 hours for the third stage. ; The temperature in the sedimentation tank is kept above 0°C (the ambient temperature is generally above zero during fresh sweet potato processing), normal pressure, and a water level observation table is left.

[0028] The sedimentation tank described is a sealed iron tank, the ratio of diameter to height is 1:3, the sewage inlet is at the top of the tank, the outlet of the first-stage sedimentation tank is 1 / 5 from the bottom of the tank, and the outlet of the second-stage sedimentation ta...

example 2

[0031] Example two: the method for producing bio-organic fertilizer by utilizing the waste water discharged from the processing of fresh sweet potato starch, the steps are:

[0032] 1) Concentrate and settle the wastewater discharged from fresh sweet potato processing starch, and in a sealed state, pass through the three-stage precipitation of the sedimentation tank. The three-stage precipitation time is 2 hours for the first stage, 4 hours for the second stage and 8 hours for the third stage. ; The temperature in the sedimentation tank is kept above 0°C, normal pressure, and a water level observation table is left.

[0033] The sedimentation tank described is a sealed iron tank, the ratio of diameter to height is 1:3, the sewage inlet is at the top of the tank, the outlet of the first-stage sedimentation tank is 1 / 5 from the bottom of the tank, and the outlet of the second-stage sedimentation tank is 1 / 5 away from the tank bottom. At the bottom 1 / 6, the water outlet of the th...

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Abstract

A method of producing biological organic fertilizer by using wastewater which is discharged from the course of using fresh pachyrhizus to process starch belongs to the wastewater treatment field. Thesteps of the method are as follows: firstly, the discharged wastewater is collected and deposited for the three-grade deposition by a depositing tank, and the deposit periods are two hours, four hoursand eight hours; secondly, deposit and EM are mixed uniformly according to the weight ratio of 1000 to 1 to 5 to be placed for 24 hours under 15 DEG C to 25 DEG C; thirdly, the product is air-dried under 28 DEG C to 32 DEG C and granulating and sieving under normal temperature. The method solves the problem that the wastewater is insufferable smelly and pollutes the environment; the method also increases the total amount of beneficial microorganism, reduces the total amount of contamination greatly and at the same time ensures that the produced biological organic fertilizer can achieve the biological organic fertilizer industry standard under the country requirement, and the produced biological organic fertilizer can be used for the crops of cotton, wheat, garlic etc.

Description

technical field [0001] The invention relates to the field of wastewater treatment discharged from fresh sweet potato processing starch, in particular to a method for producing bio-organic fertilizer by using the wastewater discharged from fresh sweet potato processing starch. Background technique [0002] Sweet potato (Ipomoeaabatatas) is an important cultivar of Convolvulaceae Ipomoea, native to South America. Because of its high and stable yield, drought resistance, barren resistance, strong adaptability and rich nutrition, it is widely planted in my country. The yield is second only to rice, wheat and corn, accounting for more than 80% of the world's sweet potato production (about 120 million tons per year). In addition to being rich in starch and sugar, sweet potato roots generally contain 2 to 10% dry matter protein. In our country, sweet potatoes are mainly used to produce sweet potato starch. The production of starch from fresh sweet potatoes is generally a rural manu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F7/00
CPCY02A40/20
Inventor 孟庆华刘继永王胜利崔正鹏杨波赵红军
Owner 济南飞天农业科技有限公司
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