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Method for producing liquid fertilizer by using pharmaceutical factory waste liquid

A liquid fertilizer, the technology of applied pharmaceutical factory, applied in the application, organic fertilizer, fertilizer mixture and other directions, can solve the problem of waste liquid discharge and pollute the environment, and achieve the effect of convenient use and realization of waste utilization.

Inactive Publication Date: 2008-03-26
吕宏轩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art, and to provide a method that can effectively solve the problem of environmental pollution caused by the discharge of waste liquid in pharmaceutical enterprises, and can realize waste utilization and achieve the purpose of recycling economy. Methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The waste liquid of erythromycin produced by Ningxia Qiyuan Pharmaceutical Co., Ltd. was concentrated to 18-20 degrees Baume by four-effect falling film evaporation process, and the organic matter content was ≥16%, the humic acid content was ≥6.56%, and the amino acid content was ≥ 5%. This concentrated solution is then divided into two parts (in liters), one of which is 156 grams of phosphoric acid with a content of 85% and 109 grams of urea with a content of 46%, and the other part is added with a content of 90% hydrogen peroxide. Potassium 85 grams, two parts are mixed and added in the reactor to carry out neutralization reaction. N≥50g / L after reaction, P 2 o 5 ≥96g / L,K 2 O ≥ 64g / L, humic acid content ≥ 40g / L, adjust the pH value (1:250 times dilution) between 4.0 and 9.0, and control the water insoluble matter ≤ 50g / L. After the reaction, the temperature reaches about 100°C, and the temperature should be cooled as soon as possible before packaging.

Embodiment 2

[0014] Concentrate the waste liquid of erythromycin produced by Ningxia Qiyuan Pharmaceutical Co., Ltd. with a four-effect falling film evaporation process to 18-20 degrees Baume, and test the organic matter content ≥ 16%, the humic acid content ≥ 6.56%, and the amino acid content ≥ 5%. Then add 100 grams of amino acid powder with a content of 50% in the above-mentioned concentrated solution, (in liters, make the total amino acid content ≥ 100g / L.) Then add the trace elements with a total content of 20g / L, such as boric acid and manganese sulfate , zinc sulfate, ferrous sulfate and copper sulfate. (The single nutrient content of each trace element is not less than 1g / L), control the water-insoluble matter ≤ 50g / L, adjust the pH value (1:250 times dilution) between 3.0 and 7.0, and pack.

Embodiment 3

[0016] Concentrate the waste liquid of tetracycline produced by the pharmaceutical factory to 18-20 degrees Baume by four-effect falling film evaporation process, test organic matter content ≥ 16%, -humic acid content ≥ 6.56%, amino acid content ≥ 5%, nitrogen content ≥ 7 %. Then add 100 grams of amino acid powder with a content of 50% in the above-mentioned concentrated solution, (in liters, make the total amino acid content ≥ 100g / L.) Then add the trace elements with a total content of 20g / L, such as boric acid and manganese sulfate , zinc sulfate, ferrous sulfate and copper sulfate. (The single nutrient content of each trace element is not less than 1g / L), control the water-insoluble matter ≤ 50g / L, adjust the pH value (1:250 times dilution) between 3.0 and 7.0, and pack.

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PUM

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Abstract

The present invention relates to process of producing liquid fertilizer with waste liquid from pharmaceutical factory, and features that waste liquid from tetracycline or erythromycin is applied in producing water soluble fertilizer containing humic acid and amino acid. The liquid fertilizer may be applied for various kinds of crop. The liquid fertilizer has convenient application, high fertilizer effect, and environment friendship.

Description

technical field [0001] The invention relates to the technical field of pesticides and fertilizers, in particular to a method for producing liquid fertilizers by using waste liquid from pharmaceutical factories. Background technique [0002] Pharmaceutical companies discharge a large amount of industrial waste every year, causing serious pollution to the surrounding environment. At present, the country attaches great importance to environmental governance. Therefore, the treatment of industrial waste liquid has become one of the urgent problems to be solved by enterprises. [0003] The raw materials for the production of tetracycline and erythromycin are mainly plant essences such as corn starch and soybean cake powder. There are no harmful substances in the production process. The waste liquid discharged from it is concentrated by the four-effect falling film evaporation process, and the clean water can continue to be recycled. After the concentrated solution reaches 18-20 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F7/00C05G1/00
CPCY02A40/20
Inventor 吕宏轩
Owner 吕宏轩
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