Method used for extracting nutrients via pulp refining and enzymatic hydrolysis of enteromorpha, and preparing enteromorpha organic composite fertilizer

A technology of nutrients and compound fertilizers, which is applied in the direction of organic fertilizers, urea compound fertilizers, and the functions of food ingredients. It can solve the problems of high salt content in Enteromorpha, soil compaction, and difficulty in removing salt, and achieve easy extraction and retention rate. high effect

Pending Publication Date: 2017-11-07
RIZHAO XURI COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, due to the high amount of seawater absorbed by the encapsulation of Enteromorpha, the salt content of the dried Enteromorpha after simple extrusion and dehydration is very high, which makes it difficult to remove salt in the n

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0055] The invention also provides a preparation method of Enteromorpha organic compound fertilizer. The Enteromorpha slurry prepared by the above method is added with a phosphorylating agent under alkaline conditions to supplement a large number of elements to prepare Enteromorpha organic compound fertilizer. It includes the following steps:

[0056] (1) The Enteromorpha pulp or the enzymatic hydrolysis concentrated Enteromorpha pulp prepared by the above method is mixed with urea and a phosphorylation agent to perform a phosphorylation reaction, wherein the quality of the urea is the solid of the Enteromorpha pulp or the enzymatic hydrolysis concentrated Enteromorpha pulp 0-300% of the mass, the mass of the phosphorylation agent is 1%-500% of the solid mass of the enteromorpha slurry or the enzymatic hydrolysis concentrated enteromorpha slurry; the pH value of the phosphorylation reaction is 7-12, and the temperature is 0 ~100℃, react for 1~6h, and distill and concentrate at t...

Example Embodiment

[0081] Example 1

[0082] The fresh Enteromorpha moss was soaked in fresh water 4 times, and the soaking time was 15 minutes each time. After removing it, drain the water and use a large aquatic plant grinder to crush it into debris below 7cm. Grind the crushed Enteromorpha chips into a slurry with a high-concentration refiner with a disc diameter of 600mm. The refining concentration is controlled at 15%.

[0083] The citric acid of 0.75% by mass of Enteromorpha slurry was added to the ground Enteromorpha slurry, concentrated by distillation under reduced pressure at 50°C to a solid content of 30%, and centrifuged to obtain a concentrated Enteromorpha slurry and cellulose residue.

Example Embodiment

[0084] Example 2

[0085] Soak the fresh Enteromorpha moss in fresh water 4 times for 15 minutes each time. After removing it, drain the water and use a large aquatic plant grinder to crush it into debris below 7cm. Grind the crushed Enteromorpha chips into a slurry with a high-concentration refiner with a disc diameter of 600mm. The refining concentration is controlled at 15%.

[0086] The above-mentioned Enteromorpha pulp is 1000kg, the pH value is adjusted to 10-11 with alkali, 0.5kg of alkaline protease with 200,000 enzymatic activity is added, microwave heating and keeping the temperature of the reaction solution at 40-50°C, enzymatic hydrolysis reaction is carried out for 16h. During the enzymatic hydrolysis process, the water is continuously distilled off under reduced pressure, and the distillation is stopped when the solid content is greater than 25%, and the temperature is raised to 85° C. to inactivate the enzyme, and the enzymatic hydrolysis concentrated Enteromorpha ...

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Abstract

The invention belongs to the technical field of enteromorpha rapid high efficiency treatment and utilization, and organic fertilizer production, and discloses a method used for extracting nutrients via pulp refining and enzymatic hydrolysis of enteromorpha, and preparing an enteromorpha organic composite fertilizer from the nutrients. The method comprises follow steps: harvested fresh enteromorpha is immersed in fresh water to remove salt and sand, and is smashed using a large-size waterweed pulverizer; physical pulp refining is carried out using a large-size pulping machine; enteromorpha nutrients are extracted; and enteromorpha is subjected to rapid liquefaction so as to obtain enteromorpha slurry; the obtained enteromorpha slurry is subjected to enzymatic hydrolysis and distillation condensation, phosphorylation is carried out with a phosphorylation agent, and combination of inorganic fertilizers is carried out so as to obtain the enteromorpha organic composite fertilizer. According to the method, fresh enteromorpha is subjected to pulp refining and enzymatic hydrolysis so as to extract the nutrients, so that a difficult drying step is avoided; investment cost is low; cost is low; efficiency is high; capacity is large; enteromorpha environment-friendly treatment is realized preferably; and large environment pollution caused by large scale enteromorpha is eliminated.

Description

technical field [0001] The invention relates to the technical field of rapid and efficient treatment and utilization of Enteromorpha and the production of organic fertilizers, in particular to a method for refining Enteromorpha by enzymatic hydrolysis to extract nutrient components, and using the nutrient components to prepare Enteromorpha organic compound fertilizer. Background technique [0002] Enteromorpha is a kind of green algae Ulvaceae. It is rich in protein, vitamins, fat, cellulose, carbohydrates and minerals. It is famous for its rich nutrients and biologically active substances. It also contains iodine, calcium, phosphorus, iron, Potassium, other trace elements, and a complete range of amino acids can be used to prepare high-quality nutrients and high-efficiency organic fertilizers. Enteromorpha is characterized by seasonal and catastrophic outbreaks, and it needs to be salvaged intensively. The amount of Enteromorpha salvaged in a short period of time is particu...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05F11/00A23L33/10A23K10/30A23K10/14
CPCA23K10/14A23K10/30A23L33/10C05B17/00C05F11/00C05G3/00A23V2002/00C05G5/20A23V2200/30C05C9/00C05D1/00C05C3/00
Inventor 丁立朋丁然
Owner RIZHAO XURI COMPOSITE MATERIALS
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