Method for treating landscaping solid organic waste by biomass carbonization and two-stage fermentation combined process

Abstract

The embodiments of the invention disclose a method for treating landscaping solid organic waste by biomass carbonization and a two-stage fermentation combined process. The method includes the following steps: separating branches, trunks and roots from landscaping solid organic waste to obtain a mixed material of the branches, trunks and roots and remaining materials; crushing the mixed material and carbonizing the mixed material to obtain wood tar, pyroligneous liquor containing condensed water, biomass charcoal and combustible gas; crushing the remaining materials and evenly mixing the remaining materials with livestock manure, water, the wood tar and the pyroligneous liquor containing condensed water to obtain a fermentation material; and carrying out the two-stage fermentation combinedprocess treatment on the fermentation material to obtain basic organic fertilizer. The method firstly carries out classification and then carries out treatment by combination of multiple processes, can make good use of complementary advantages of the multiple processes to prepare a variety of resource utilization products, realizes the balance of energy supply and demand, effectively shortens fermentation time, and improves fermentation efficiency and final product quality.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of landscaping solid organic waste treatment, and in particular to a method for treating landscaping solid organic waste using a combination process of biomass carbonization and two-stage fermentation. Background technique [0002] In recent years, with the rapid development of urban landscaping, the output of landscaping waste has soared year by year, but most of the waste has not been transformed and utilized as a resource. Landscaping waste is mainly composed of organic matter, which is an important biomass resource. [0003] At present, the main treatment methods for the effective utilization of existing landscaping solid organic waste include the use of new strains and traditional composting for fermentation; static aerobic integrated box composting fermentation equipment for fermentation; and thermal hydrolysis heating equipment for fermentation. The output of landscaping sol...

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Problems solved by technology

[0006] For this reason, the embodiment of the present invention provides a method for treating landscaping solid organic wastes using a combination process of biomass carbonization + two-stage fermentation to solve the problems caused by the high energy consumption of landscaping wastes in the prior art. The problem of high processing cost, and the long fermentation period due to the high lignin content in landscaping waste, the fermentation process requires external heating, and the mineralization rate is high during the fermentation process, and the effective nutrient content is low; in addition , due to the relatively extensive selection of fermentation parameters and strains, the humification rate during the fermentation process is low, the content of humic acid is low, and most of the organic matter is macromolecular carbon. After the product is applied to the soil, it cannot be directly used by soil microorganisms, thus affecting soil biological fertility. The problem that the improvement effect is not good