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 t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1

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

[0036] 1. Seaweed pretreatment

[0037] Use the method described in the patent "ZL200910313001.0 Harmless Treatment Method and Equipment of Enteromorpha" to treat fresh Enteromorpha: The fresh Enteromorpha that has just been salvaged ashore is squeezed and dehydrated with a squeeze dehydration packaging device. 20-30% of the free water, the water content is reduced to 60-70%, and the volume is reduced to 1 / 4~1 / 5 of the original; use a shearing machine to break Enteromorpha to release the free water in the tubular structure of Enteromorpha, and then Perform secondary extrusion dehydration to reduce the water content to 50% for use.

[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 are first placed in a cold room at -4°C for 2-3 hou...

Example Embodiment

[0047] Example 2

[0048] The double seaweed fertilizer of the present invention can also be prepared by the following steps:

[0049] 1. Seaweed pretreatment

[0050] Use the method described in the patent "ZL200910313001.0 Harmless Treatment Method and Equipment of Enteromorpha" to treat fresh Enteromorpha: The fresh Enteromorpha that has just been salvaged ashore is squeezed and dehydrated with a squeeze dehydration packaging device. About 20-30% of the free water, the water content is reduced to 60-70%, and the volume is reduced to 1 / 4~1 / 5 of the original; use a shearing machine to break Enteromorpha to release the free water in the tubular structure of Enteromorpha. Then carry out secondary extrusion dehydration to reduce the water content to 50%. At this time, hot air is used for airflow drying and dehydration to reduce the water content to below 10%, and the cyclone separator is used to remove sand and impurities; finally enter the pulverizer for pulverization. So far, the h...

Example Embodiment

[0058] Example 3

[0059] The double seaweed fertilizer of the present invention can also be prepared by the following steps:

[0060] 1. Seaweed pretreatment

[0061] Take the dried leaf algae and ulva powder, dry, pulverize, and pass through a 60-mesh sieve to obtain leaf algae powder and ulva powder.

[0062] Mix the leaf algae powder and ulva powder in a ratio of 2:1. Add 3 times the volume of water, after fully soaking, freeze and thaw 2-3 times, it becomes a paste.

[0063] 2. Extraction of double seaweed polysaccharide

[0064] Take the above-mentioned frozen-thawed double seaweed paste 1000Kg, put it into the reaction kettle, add 1200Kg water, add 2Kg compound enzyme, adjust the pH of the enzymatic hydrolysis system to 4.0, heat up to 45℃, stir for 1.5 hours, add 2Kg polysaccharide degrading enzyme, The pH of the system was adjusted to 6.0, the temperature was raised to 50°C, and stirring was continued for 1 hour, and the double seaweed enzymatic hydrolysate and double seaweed ...

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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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