Preparation method of seaweed organic fertilizer and organic fertilizer prepared by using method

An organic fertilizer and seaweed technology, which is applied in the preparation of organic fertilizers, organic fertilizers, inorganic fertilizers, etc., can solve the problems of low utilization rate and low economic benefits, and achieve the effects of low production cost, water saving and waste reduction.

Active Publication Date: 2015-01-07
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of low economic benefit and low utilization rate of the waste produced in the processing of large seaweed and microalgae cultiv

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Ingredients processing:

[0030] Weigh 20kg of dried kelp slag from the kelp chemical plant, mix the microalgae slag produced during microalgae culture and processing according to the dry weight ratio of macroalgae slag and microalgae cells at 500:1, and add spirulina culture process The waste medium produced is rich in sodium salt, potassium salt, nitrate, phosphate, and trace elements iron, zinc, and copper necessary for plant growth. After mixing, keep the mixture uniform and ensure that the algae residue and algae are soaked in the In the culture medium for 3 hours, the various inorganic salts, cellulose, and proteins in the algae residue and algal body can be fully dissolved in the culture medium liquid, and the water content is controlled at 55%. Mix bran and straw accounting for 5% of the dry weight of seaweed residue, with a particle size of 5mm, add heavy metal-removed activated sludge accounting for 25% of the dry weight of seaweed residue, and measure the...

example 2

[0039] (1) Ingredients processing:

[0040] Weigh 20kg of fresh kylin dregs produced in the seaweed processing chemical plant, add the microalgae liquid produced in the microalgae cultivation and processing process, Mix the algae dregs and waste algae, keep the mixture uniform after mixing, and ensure that the algae dregs and algae are soaked in the algae liquid for 5 hours, so that the various inorganic salts, cellulose, and proteins in the algae dregs and algae can fully Dissolve in the algae liquid to ensure that its water content is 65%, continue to mix bran and straw accounting for 1% of the dry weight of the seaweed residue, with a particle size of 5mm, and add heavy metal-removed activated sludge accounting for 30% of the dry weight of the seaweed residue. By measuring the content of organic matter and total nitrogen in the organic fertilizer in the mixed compost, add bran and straw crushed to a particle size of 1-2mm to control the carbon-nitrogen ratio of the compost ...

Embodiment 3

[0047] (1) Ingredients processing:

[0048] Weigh 20kg of dried kelp slag from the kelp chemical plant, and mix the microalgae slag produced during the microalgae culture and processing process according to the dry weight ratio of macroalgae slag and microalgae cells at 500:1, and add the spirulina culture process The waste medium produced is rich in sodium salt, potassium salt, nitrate, phosphate, and trace elements iron, zinc, and copper necessary for plant growth. After mixing, keep the mixture uniform and ensure that the algae residue and algae are soaked in the In the culture medium for 5 hours, the various inorganic salts, cellulose and proteins in the algae residue and the algal body can be fully dissolved in the culture medium liquid, and the water content is controlled at 55%. Mix bran and straw accounting for 5% of the dry weight of seaweed residue, with a particle size of 5mm, add heavy metal-removed activated sludge accounting for 25% of the dry weight of seaweed r...

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Abstract

The invention belongs to the fields of forestry and agricultural residues recycling and organic fertilizer production, and provides a preparation method of a seaweed organic fertilizer, a seaweed organic composite mixed fertilizer and a seaweed organic liquid fertilizer, and three fertilizers. The preparation method of the seaweed organic fertilizer comprises the following steps: (1) processing ingredients; (2) carrying out aerobic and anaerobic mixed fermentation; (3) screening and crushing an organic seaweed fertilizer; and (4) pelleting. The composite mixed fertilizer and the organic liquid fertilizer are improved on the basis of the method. Seaweed slag, a microalgae culture medium and microalgae slag in the chemical industry production are taken as raw materials; composting fermentation is carried out on the raw materials and activated sludge; waste is changed into treasures; pollution to the environment is reduced; the production cost is low; no hazardous substance is generated in fermentation preparation; water resources are saved; and no secondary pollution is generated. The seaweed contains a lot of natural active ingredients such as cytokinin and phytohormone; and the fertilizer produced from the raw materials can promote the growth of plants, enhances the ability of resisting adverse environments, and can improve the fertilizer-conserving and water-holding capacities of the soil after being used for a long period of time.

Description

technical field [0001] The invention belongs to the fields of agricultural and forestry waste reuse and organic fertilizer production, and relates to the reuse and comprehensive treatment of processing wastes using macroalgae and microalgae and their high-value products, and specifically relates to the production process of seaweed gum processing and production enterprises. Waste algae residue and activated sludge are mixed and composted to form seaweed organic fertilizer, seaweed organic liquid fertilizer, preparation method of seaweed compound fertilizer and fertilizer prepared by the method provided by the invention. Background technique [0002] The large-scale economic seaweeds that have been cultivated in my country at present mainly include: kelp, wakame and hijiki of brown algae; altar laver, variegated laver, asparagus, gracilaria, red cabbage and Eucheuma of red algae, etc. Since the economic and medical value of this type of macroalgae is increasingly discovered by...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05F17/00
CPCC05B7/00C05F3/00C05F17/50C05G3/00C05F7/00C05F11/00C05B17/00C05C5/02C05C5/04C05D5/00C05D9/02Y02W30/40
Inventor 王长海吴明珠何梅琳杨未男张轶
Owner NANJING AGRICULTURAL UNIVERSITY
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