Shifting stalk pellet bioreactor

Abstract

The invention provides a shifting stalk pellet bioreactor. Crops stalks are crushed and then pressed into pellets, a fermentation pond is built in a winter-warming greenhouse or a greenhouse, and an air blower and an exhaust apparatus are installed. The stalk pellets are mixed with a nitrogen-sourced substance according to a certain ratio to be stacked. By virtue of the operations such as fermentation strain addition, watering, film lamination, air blowing, exhaustion and the like, the stalks are aerobically fermented and converted into carbon dioxide, heat, organic matters and the like so asto be used for the growth and development of crops such as vegetables planted in greenhouses and fruit trees and other soilless cultivated green plants.

Description

technical field [0001] The invention relates to the field of straw bioreactors, in particular to a bioreactor for shifting straw particles. Background technique [0002] Straw bioreactor technology is an efficient method of returning straw to the field. It can be used for the cultivation of vegetables and fruit trees in solar greenhouses, greenhouses and other facilities, as well as the cultivation of horticultural crops and Chinese medicinal materials in the open field. According to the application method, it can be divided into in-situ, displacement and In situ and translocation combined with three basic methods. [0003] The shifted straw bioreactor builds a reactor fermentation tank in a protected greenhouse or a large-scale linkage greenhouse, builds reactor materials such as straw and nitrogen source materials in the fermentation tank as required, inoculates fermentation microorganisms, and provides carbon dioxide and organic matter for crops through aerobic fermentati...

AI Technical Summary

Problems solved by technology

However, conventional straw bioreactors have many defects and problems. First, 7,000-8,000 kg of corn stalks need to be applied to 1 mu of protected land. The reactor is bulky, and the fermentation tank occupies a large area, which wastes the area of ​​the shed. Otherwise, the amount of straw applied is limited. , the biological energy efficiency is insufficient; second, when laying and building the pile, due to the large volume and inconsistent density of the straw, the bacteria and nitrogen source substances are unevenly distributed in the reactor, the fermentation is slow, the temperature is low, and the efficiency is poor; Oxygen supply by blowing air makes the growth of aerobic fermentation bacteria poor, anaerobic fermentation reaction is formed, odor is generated, and the conversion of organic matter is not complete; fourth, the labor intensity is high, and the labor force is large, which reduces the willingness of users to use this technology, and it is difficult to Fifth, from a national perspective, many pruned crop straws are either large in size, high in carbon-to-nitrogen ratio, or waxy and tough on the surface of the straw, such as wheat, rice, corn, cotton, rapeseed, soybeans, peanuts, and forest branches. Straws of crops such as straw, bacteria invade slowly, and are not suitable for use as raw materials for bioreactors, which limits the wide selection of materials for straw bioreactors in different regions, and has become one of the factors restricting the large-scale promotion and application of straw bioreactor technology across the country.