Preparation of seaweed organic fertilizer

Abstract

The invention provides a method for preparing seaweed organic fertilizer, which is produced by fermenting waste residue after seaweed gel is extracted. Aiming at the problem that the seaweed residue is not easy to degrade so as to cause difficult fermentation, the method comprises the step of adding 0.1 to 1.5 percent of potassium dihydrogen phosphate into components to convert insoluble calcium alginate into soluble potassium alginate, accelerate fermentation and decomposition of the seaweed residue, reduce fermentation time by 5 to 8 days, reduce decomposition time by 5 to 10 days, reduce production period remarkably, and improve efficiency.

Description

technical field

[0001] The invention relates to a preparation method of seaweed organic fertilizer, in particular to the comprehensive utilization and treatment of waste residue produced by seaweed chemical enterprises after producing seaweed gel, and belongs to the technical field of comprehensive management of agricultural and forestry waste. Background technique

[0002] my country has a vast sea area and a long coastline, and is rich in seaweed resources. There are a large number of seaweed processing enterprises. In the process of using seaweed to process and extract seaweed gel, this industry will produce a large amount of waste-seaweed floating residue. In order to prevent environmental pollution, Enterprises generally adopt the method of adding calcium chloride flocculation dehydration to separate from wastewater. The seaweed residue contains about 80% water, and its main components are seaweed fiber, calcium alginate, protein, fucoidan, chitosan, polyphenols , betaine...