Processing method for antibiotics bacterial slag containing zinc

A technology of antibiotic slag and treatment method, applied in the direction of separation method, water/sewage treatment, chemical instrument and method, etc., can solve the problems of waste slag pollution, inability to comprehensively utilize, pollution of environment by zinc-containing antibiotic slag, and achieve Effects of solving pollution problems and reducing toxicity

Inactive Publication Date: 2005-05-11
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the current situation in the prior art that zinc-containing antibiotic slag pollutes the environment and cannot be comprehensively utilized, the present invention provides a treatment method for zinc-con

Method used

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  • Processing method for antibiotics bacterial slag containing zinc
  • Processing method for antibiotics bacterial slag containing zinc
  • Processing method for antibiotics bacterial slag containing zinc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Treatment of erythromycin residue

[0024] 1.1 Bacterial residues to remove zinc ions Weigh 10kg of erythromycin residues, add 70kg of water, fully suspend, take a little as a reference, and adjust the pH to 5.0 with 6N HCl for the rest, add the acid-treated bacterial residue suspension Hangzhou Zhengguang Resin Co., Ltd. produced 20kg of D850 chelating resin, stirred for 5 minutes, and filtered the suspension with a 400-mesh screen to separate the resin from the fungus residue, and the resin was retained. Take a little treated fungus residue suspension as a sample and the above reference substance for the following inspection:

[0025] 1.2 Inspection

[0026] (1) Filter the above untreated erythromycin residue reference substance with filter paper to obtain a supernatant, adjust the pH to alkaline with NaOH, and then obvious precipitation occurs. Continuing to add lye can make the precipitate disappear, which shows that Zn(OH) is formed under weakly alkaline conditio...

Embodiment 2

[0031] Treatment of zinc-containing antibiotic residues:

[0032] a. Add 5 kg of zinc-containing erythrotoxin antibiotic slag and 40 kg of tap water in the mixing tank with a weight ratio of 1:8, stir to make it fully suspended; feed 4N sulfuric acid to continue stirring, and adjust the pH to 5;

[0033] B. Feed compressed air into the mixing tank to make the bacterium residue suspension flow through from bottom to top. In the metal ion adsorption column, the dezincified bacteria residue suspension is obtained from the upper end of the adsorption column;

[0034] Inspection: Take a little suspension of the above-mentioned processed fungus residue, filter it with filter paper to obtain the supernatant, adjust the pH to 8 with NaOH, and no precipitation occurs.

[0035] c. Pass the used divalent metal ion adsorption column into the divalent metal ion adsorption column from top to bottom with 120mM sodium ethylenediamine tetraacetate solution to regenerate the medium in the diva...

Embodiment 3

[0037] Treatment of zinc-containing antibiotic residues:

[0038] a. Add 10kg of erythromycin zinc-containing antibiotic bacteria residue with a weight ratio of 1:5 and 50kg of tap water into the mixing tank, stir to make it fully suspended; feed 5N acetic acid to continue stirring, and adjust the pH to 4;

[0039]B. Feed compressed air into the mixing tank to make the bacterium residue suspension flow through from bottom to top. In the metal ion adsorption column, the dezincified bacteria residue suspension is obtained from the upper end of the adsorption column;

[0040] Inspection: Take a little suspension of the above-mentioned processed fungus residue, filter it with filter paper to obtain the supernatant, adjust the pH to 8 with NaOH, and no precipitation occurs.

[0041] c. Pass the used divalent metal ion adsorption column into the divalent metal ion adsorption column from top to bottom with 120mM sodium ethylenediamine tetraacetate solution to regenerate the medium i...

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Abstract

A process for treating the Zn-contained antibiotic bacteira dregs includes such steps as diluting it by water to obtain suspension, adding acid for regulating pH value and converting the Zn from zinc hydroxide to easily soluble Zn ions, flowing it through the 2-valence metal ion adsorption column to obtain Zn-removed dregs, and biologically using it.

Description

(1) Technical field [0001] The invention relates to a method for treating antibiotic scum, in particular to a method for treating zinc-containing antibiotic slag. (2) Background technology [0002] In the industrial production of antibiotics, a large number of bacteria residues will be produced. Some antibiotic fermentation products exist in the supernatant, such as spiramycin and erythromycin, and some exist in mycelium, such as maduramycin. In this case the fungus residue is discarded. The main component of fungus residue is mycelium, which is rich in protein, nucleic acid, fatty acid and other bacterial metabolites, so it is rich in N, P, K, S and other elements. Usually, the fungus residue is further processed: 1. Use new microorganisms to ferment the fungus residue, remove the harmful components in the fungus residue, and turn the fungus residue into a pollution-free, safe and reliable feed; 2. Develop the fungus residue into a high-tech feed of organic fertilizers. ...

Claims

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Application Information

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IPC IPC(8): B01D15/04B01J47/02B01J47/022B09B3/00C02F1/42C02F1/62C22B3/42
CPCY02P10/20
Inventor 林陈水叶剑达徐舰黎小军
Owner ZHEJIANG UNIV OF TECH
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