Method for preparing inorganic sylvine crystal and feed additive by using molasses fermented waste liquid

A feed additive, fermentation waste liquid technology, applied in inorganic chemistry, animal feed, animal feed, etc., can solve problems such as cost increase, corrosion of equipment, soil texture and structure damage, etc., and achieve high economic and social benefits and production costs. Low, good environmental protection effect

Active Publication Date: 2009-11-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned methods cannot be popularized and applied in large quantities because of their respective drawbacks.
Among them, long-term direct irrigation of wastewater with a pH of 3.5 to 4.5 will damage the soil texture and structure; the concentrated combustion method not only consumes energy but also corrodes equipment, resulting in large investment and low return; making compound fertilizers requires adding a large amount of chemical fertilizers to supplement fertilizer efficienc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add polyacrylamide with a number-average molecular weight of 25 million as a coagulant to the molasses fermentation waste liquid produced by molasses fermentation alcohol (abbreviated as alcohol waste liquid). The concentration of polyacrylamide in the mixture is 1ppm. Let it stand for 24 hours, and extract the supernatant for later use. 2 times the volume of the resin bed, the pretreated alcohol waste supernatant is loaded into the 001×7 resin column, and the K of the alcohol waste + Separated from the alcohol waste liquid and adsorbed on the resin, adsorbed with K + After washing the resin with deionized water, add HCl solution with a volume of 3 times the volume of the resin bed and a concentration of 800mmol / L at 30°C as a regeneration agent, and elute the resin at a rate of 8 times the volume of the resin bed, and react while regenerating the resin Generate Potassium Chloride (KCI) and desorb from the resin to obtain an eluent containing Potassium Chloride, then e...

Embodiment 2

[0026] Add polyacrylamide with a number-average molecular weight of 2 million as a coagulant to the molasses fermentation waste liquid produced by molasses fermentation alcohol (referred to as alcohol waste liquid), the concentration of polyacrylamide in the mixture is 300ppm, stir evenly, at 30°C Let it stand for 2 hours, and extract the supernatant for later use. 10 times the resin bed volume of the pretreated alcohol waste liquid supernatant is loaded into the S-9 resin column, and the K of the alcohol waste liquid + Separated from the alcohol waste liquid and adsorbed on the resin, adsorbed with K + After washing the resin with deionized water, add HCl solution with a volume of 8 times the volume of the resin bed and a concentration of 600mmol / L at 50°C as a regeneration agent, and elute the resin at a rate of 10 times the volume of the resin bed, and react while regenerating the resin Generate potassium chloride (KCI) and desorb from the resin to obtain an eluent contain...

Embodiment 3

[0028] Add calcium oxide to the waste liquid produced by molasses fermentation yeast (referred to as yeast waste liquid) to form a mixture, the concentration of calcium oxide in the mixture is 100mmol / L, stir evenly, let stand at 100°C for 4 hours, extract the upper Serum for later use. 20 times the volume of the resin bed, the pretreated yeast waste liquid supernatant was loaded into the ZGC108 resin column, and the K of the yeast waste liquid + Separated from yeast waste liquid and adsorbed on the resin, adsorbed with K + After the resin was washed with deionized water, 7 times the volume of the resin bed was added at 70°C with a concentration of 200 mmol / L H 2 SO 4 The solution is a regeneration agent, and the resin is eluted at a speed of 3 times of the resin bed volume, and the resin is regenerated while reacting to generate potassium sulfate (K 2 SO 4) and desorbed from the resin to obtain the eluent containing potassium sulfate; then the above-mentioned eluent conta...

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PUM

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Abstract

The invention discloses a method for preparing inorganic sylvine crystal and feed additive by using molasses fermented waste liquid, comprising the pretreatment of molasses fermented waste liquid, absorbing and separating K+ ion in the pre-treated molasses fermented waste liquid through the resin column, regenerating the resin column absorbing K+, crystallizing, cooling, centrifugally separating, washing, drying the eluate containing inorganic sylvine, obtaining inorganic sylvine crystal, spray drying after heating to condense or condensing the molasses fermented waste liquid after absorbing K+ by the resin column, obtaining the feed additive. The invention has simple technique, regenerates the resin, realizes the formation reaction and the de-sorption separation of sylvine, and has low production cost; the regenerating agent is served as the reaction raw material to generate inorganic sylvine without resin regenerated waste water, and the molasses fermented waste liquid is completely used. The invention has good environmental protection effect, remarkable economical benefits and social benefits.

Description

technical field [0001] The present invention relates to a method for preparing crystalline inorganic potassium salts and feed additives from molasses fermentation waste liquid, in particular to a technology for the treatment and comprehensive utilization of various molasses including molasses fermentation waste mash produced by various sugar factories such as sugar beet, sugarcane and starch method, the field of environmental protection. Background technique [0002] Molasses is a by-product obtained by extracting sugar from sugar cane, beet or starch. After molasses is fermented to produce yeast, alcohol, monosodium glutamate, citric acid and lysine and other fermentation products, the waste mash left is collectively referred to as molasses fermentation waste. liquid. In sugar production, due to the influence of enzymatic reaction, Maillard reaction, caramelization, alkali degradation and other factors, the color of the material continues to deepen, and a large amount of c...

Claims

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Application Information

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IPC IPC(8): C01D3/04C01D5/00C01D9/00C01B25/30A23K1/02A23K1/16C02F9/02C02F1/42C02F1/52A23K10/12A23K10/33A23K20/20A23K20/22
CPCY02P60/87
Inventor 于淑娟张平军扶雄管永光李丹
Owner SOUTH CHINA UNIV OF TECH
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