Method for producing organic fertilizer by orange peel slag

Abstract

The invention discloses a method for producing an organic fertilizer by orange peel slag. The method comprises the following steps of a, inoculating a liquid medium with bacillus subtilis, and carrying out fermentation culture to obtain a liquid bacterium agent, b, uniformly mixing the liquid bacterium agent, a moisture conditioning agent, orange peel slag and a pH conditioning agent, and carrying out composting fermentation treatment to obtain a production bacterium agent, c, uniformly mixing purple mudstone and the pH conditioning agent to obtain a mixture A, and d, uniformly mixing the production bacterium agent, the mixture A, the orange peel slag and the moisture conditioning agent, and carrying out composting fermentation treatment to obtain the organic fertilizer. The bacillus subtilis screened and cultured by the method has a pectin decomposition capability and can effectively utilize a mass of pectin in orange peel slag by being used in composting fermentation. Through utilization of the pre-prepared production bacterium agent, decomposition of microbes in compost is fast started. The purple mudstone can buffer a pH value of the compost, absorb odor and ammonia and improve organic fertilizer nitrogen content.

Description

technical field [0001] The invention relates to a method for producing organic fertilizer, in particular to a method for cleanly producing organic fertilizer by composting and fermenting citrus peels as main raw materials. Background technique [0002] my country is the largest citrus producer in the world. In addition to direct consumption of citrus, a considerable part of citrus is used for juice processing, resulting in a large amount of citrus peel, which is extremely difficult to handle and dispose of, and causes serious environmental pollution. Currently, citrus peels are mainly disposed of through simple sanitary landfills. However, citrus peels are large in size and high in water content. Landfill treatment not only takes up a lot of land, but also produces a large amount of seepage and odor, which destroys the physical, chemical and biological conditions of landfills. Many landfills have refused to fill. Bury citrus peels. At the same time, landfilling and central...

AI Technical Summary

Problems solved by technology

At present, the more effective method is to dry the pomace to make feed, but the water content of citrus pomace is more than 80%, and it is rich in pectin, so a large amount of water exists in the form of adsorbed water. Using fermentation and drying technology to produce feed consumes more energy Large, high cost, and difficult to be widely used. Data show that the water content of dried 1 ton of citrus peels exceeds 80%. In addition, it is rich in pectin, and a large amount of water exists in the form of adsorbed water. Fermentation requires 1 ton of coal and electricity. , Labor, enterprise equipment depreciation and other expenses, the cost remains high, and the promotion process is slow

In addition, the protein content of citrus pomace is less than 1% (dry weight basis), and the nutritional value of the feed is low

However, the method disclosed in this patent application does not specifically treat the pectin in the citrus pomace, resulting in incomplete degradation of the citrus pomace, and the large amount of pectin contained in the citrus pomace is not effectively utilized, and the preparation method The process is complex, the operating cost is high, and the production cycle is long, which is not conducive to large-scale promotion and application

[0005] Therefore, considering that the effect of applying existing technologies to treat citrus peels is not ideal enough, it is urgent to develop a new method for large-scale processing of citrus peels and production of organic fertilizers, which can specifically treat the pectin in citrus peels, Completely degrade citrus peels, effectively utilize a large amount of pectin contained in citrus peels, and have simple process, low operating cost, and short production cycle