Mixed fermentation raw material and method for preparing mixed fermentation fertilizer from same

Abstract

The invention discloses a mixed fermentation raw material and a method for preparing a mixed fermentation fertilizer from the mixed fermentation raw material, and the mixed fermentation raw material is composed of the following materials in parts by volume: 200-270 parts of greening waste; 22-30 parts of a kitchen waste organic fertilizer; 22-30 parts of water; and 0.35-0.5 part of a microbial agent. According to the method, the greening waste and the kitchen waste organic fertilizer are co-fermented, so that on one hand, raw materials for fermentation of the greening waste are optimized, on the other hand, the total nutrient of a product obtained by co-fermentation of the greening waste and the kitchen waste organic fertilizer is 5.0-7.5%, and on the other hand, the total nutrient of a product obtained by single fermentation of the current greening waste is 2.5-4.5% and cannot reach a standard (NY525-2012) that the organic fertilizer total nutrient content is larger than or equal to 5.0%. The mixed fermentation raw material solves the problem of low fertilizer efficiency, greatly enhances the total nutrient content, enables the product to reach the standard cone of the organic fertilizer, and can be widely used in agricultural production.

Description

technical field [0001] The invention relates to the fields of biological resource development and environmental protection, in particular to a mixed fermentation raw material and a method for preparing mixed fermentation fertilizer from it. Background technique [0002] Greening waste refers to plant materials such as tree and shrub trimmings, lawn trimmings, fallen leaves, branches, discarded grass flowers and weeds in gardens and flower beds produced during the natural or maintenance process of greening plants in urban green land or suburban woodland. [0003] The amount of urban greening waste in my country is huge, and it continues to accumulate and increase. The main components of greening waste are lignin, cellulose, and hemicellulose, which are difficult to decompose. Therefore, the effective utilization of greening waste resources and the research on key technologies are of great importance. significance. [0004] The treatment methods of greening waste mainly includ...

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Problems solved by technology

[0010] (1) Landfill, landfill can realize the reduction of garbage, but kitchen waste is mainly composed of carbohydrates, vegetable leaves, and fruit peels, with a high water content, and landfill is prone to produce a large amount of leachate, which seriously pollutes groundwater; (2) ) incineration, incineration is also one of the methods to remove garbage, but the organic matter and water content in kitchen waste is high, the incineration calorific value is low, and the atmosphere is polluted; (3) Anaerobic fermentation, this method is still a new technology for kitchen waste treatment , a lot of improvement is still needed in terms of organic matter removal rate and methane yield; (4) Aerobic composting technology, compared with the first three, this method is effective in realizing the harmlessness, reduction and resource utilization of kitchen waste Occupying an advantage, but due to the high water content of kitchen waste itself, and the water generated by the decomposition of organic matter fills the compost body, the temperature rises slowly during the composting process, a large amount of leachate is produced, and the odor pollution is serious, which greatly restricts the composting process.