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Double-alga fertilizer and preparation method thereof

A seaweed and fertilizer technology, applied in the direction of organic fertilizers, fertilizer mixtures, fertilization devices, etc., to achieve the effects of concentration, change of evaporation concentration process, and improvement of extraction rate

Active Publication Date: 2014-05-07
青岛海大生物集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has not been seen that two kinds of seaweeds are used at the same time to produce seaweed fertilizer with double algae synergistic effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of double seaweed fertilizer of the present invention comprises the following steps:

[0036] 1. Seaweed pretreatment

[0037] Use the method described in the patent "ZL200910313001.0 Enteromorpha harmless treatment method and its equipment" to process fresh Enteromorpha: squeeze and dehydrate fresh Enteromorpha that has just been salvaged ashore with extrusion dehydration packaging equipment, remove 20-30% free water, the water content is reduced to 60-70%, and the volume is reduced to 1 / 4~1 / 5 of the original; the Enteromorpha is broken with a shearing machine, and the free water in the tubular structure of the Enteromorpha is released, and then Carry out secondary extrusion dehydration to reduce the water content to 50%, and set aside.

[0038] After the fresh kelp is drained, it is cut into small pieces of about 2 cm by a shearing machine and set aside.

[0039] The enteromorpha and kelp treated above were pre-cooled in a -4°C cold room for 2...

Embodiment 2

[0048] The double seaweed fertilizer of the present invention can specifically also be obtained through the following steps:

[0049] 1. Seaweed pretreatment

[0050] Use the method described in the patent "ZL200910313001.0 Enteromorpha harmless treatment method and its equipment" to process fresh Enteromorpha: squeeze and dehydrate fresh Enteromorpha that has just been salvaged ashore with extrusion dehydration packaging equipment, remove About 20-30% of free water, the water content is reduced to 60-70%, and the volume is reduced to 1 / 4~1 / 5 of the original; the enteromorpha is broken with a shearing machine, and the free water in the tubular structure of the enteromorpha is released. Then perform secondary extrusion dehydration to reduce the water content to 50%. At this time, use hot air for air drying and dehydration to reduce the water content to below 10%. Use a cyclone separator to remove sand and impurities; finally enter the pulverizer for crushing, So far, the harml...

Embodiment 3

[0059] The double seaweed fertilizer of the present invention can specifically also be obtained through the following steps:

[0060] 1. Seaweed pretreatment

[0061] Take dried Ascophyllum nodosum and Ulva, dry them, crush them, and pass through a 60-mesh sieve to obtain Ascophyllum nodosum powder and Ulva powder.

[0062] Mix Ascophyllum nodosum powder and Ulva powder in a ratio of 2:1. Add 3 times the volume of water, fully infiltrate, freeze and thaw 2-3 times, and it becomes a paste.

[0063] 2. Extraction of double seaweed polysaccharides

[0064] Take 1000Kg of the above-mentioned frozen-thawed double seaweed paste, put it into the reaction kettle, add 1200Kg of water, add 2Kg of compound enzyme, adjust the pH of the enzymatic hydrolysis system to 4.0, raise the temperature to 45°C, stir for 1.5 hours, add 2Kg of polysaccharide degrading enzyme, Adjust the pH of the system to 6.0, raise the temperature to 50°C, continue to stir for 1 hour, and centrifuge while it is ...

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PUM

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Abstract

The invention provides a double-alga fertilizer and a preparation method thereof. The preparation method comprises the following steps: pretreating green algae and brown algae; extracting double-alga polysaccharides: performing composite enzymatic hydrolysis, adding a polysaccharide degrading enzyme, specifically degrading the double-alga polysaccharides to degrade active polysaccharide fragments, and performing centrifugal separation in a hot state to obtain double-alga enzymatic hydrolysate and double-alga residues; performing ultrafiltration on the enzymatic hydrolysate to obtain a double-alga polysaccharide fertilizer additive, performing reverse osmosis concentration on an ultrafiltration waste liquid to obtain a total-micro double-alga foliage fertilizer, and drying and pelletizing double-alga residues left after enzymolysis to obtain a double-alga organic particle fertilizer. According to the method, a novel alga fertilizer is prepared by extracting active ingredients from brown alga and green algae by means of the modern biotechnology, so that the extraction rates of the effective components in double algae are increased. The double-alga polysaccharides are degraded specifically, so that the acting effect is enhanced. Moreover, double-alga resources are utilized fully, and the double-alga polysaccharide fertilizer additive, the double-alga organic particle fertilizer and the double-alga total-micro foliage fertilizer are prepared at the same time.

Description

technical field [0001] The invention relates to the field of seaweed fertilizer, in particular to a double seaweed fertilizer and a preparation method thereof. Background technique [0002] Since the advent of high-efficiency seaweed fertilizer industrial production in the 1980s, seaweed fertilizer has developed rapidly around the world due to its comprehensive nutrition, unique efficacy, natural pollution-free characteristics and high cost performance, and has been supported and promoted in many countries. promote. [0003] Most of the seaweed fertilizers currently on the market use brown algae as a single raw material for production. Alginic acid in brown algae has been proved to be a natural soil conditioning substance in recent years, which can promote the formation of soil aggregate structure, improve the internal pore space of soil, increase the ability of soil to retain fertilizer, water and gas, and quickly restore the colloidal balance of soil. Increase soil biolo...

Claims

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Application Information

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IPC IPC(8): C05F11/00C05G3/00
Inventor 单俊伟刁红霞王海华李海生宋海妹李秀珍
Owner 青岛海大生物集团股份有限公司
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