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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 next step of deep processing, increases a lot of costs, and affects the quality of subsequent products. quality
In particular, the prepared organic fertilizer with high salt content is easy to cause compaction of the soil and affect the growth of crops.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0055] The invention also provides a preparation method of Enteromorpha organic compound fertilizer. Enteromorpha pulp prepared by the above method is added with a phosphorylating agent under the condition of maintaining alkalinity, and a large amount of elements are supplemented to prepare Enteromorpha organic compound fertilizer. Specifically include the following steps:

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

Embodiment 1

[0082] Soak fresh Enteromorpha 4 times in fresh water, each soaking time is 15 minutes. Drain the water after taking it out, and use a large aquatic plant grinder to crush it into debris below 7cm. Grind the pulverized Enteromorpha shavings into pulp with a high-consistency refiner with a grinding disc diameter of 600 mm. Refining concentration is controlled at 15%.

[0083] Add 0.75% citric acid of Enteromorpha pulp to the obtained Enteromorpha pulp, concentrate under reduced pressure at 50°C to a solid content of 30%, and centrifuge to obtain concentrated Enteromorpha pulp and cellulose residue.

Embodiment 2

[0085] Soak fresh Enteromorpha 4 times in fresh water, each soaking time is 15 minutes. Drain the water after taking it out, and use a large aquatic plant grinder to crush it into debris below 7cm. Grind the pulverized Enteromorpha shavings into pulp with a high-consistency refiner with a grinding disc diameter of 600 mm. Refining concentration is controlled at 15%.

[0086] Take 1000kg of the above-mentioned enteromorpha slurry, adjust the pH value to 10-11 with alkali, add 0.5kg of alkaline protease with 200,000 enzyme activities, heat with microwave and keep the temperature of the reaction solution at 40-50°C, and carry out the enzymolysis reaction for 16 hours. During the enzymolysis process, water is continuously distilled under reduced pressure to remove water, 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 enzymolysis concentrated enteromorpha pulp is obtained.

[00...

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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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