不同种类辅料对鸡粪好氧堆肥效果的影响

Effects of Different Kinds of Excipients on Aerobic Composting of Chicken Manure

摘要: 好氧堆肥是目前鸡粪无害化处理的有效途径之一。本研究旨在探究不同种类的辅料与鸡粪混合发酵时的温度、养分等的变化，以期获得实际生产中较佳辅料。试验以玉米秸秆、稻壳和稻草三种原料为辅料调节原料与辅料比例，使好氧堆肥初始物料的碳氮比(C/N)为25~30:1、含水率为55%~65%。鸡粪与三种辅料共堆肥结果表明，三种辅料均可作为与鸡粪进行混合好氧堆肥，且能达到无害化的要求。其中粒径大、多孔、疏松的玉米秸秆作为辅料与鸡粪共同好氧堆肥，有利于堆体通风供氧，升温和降温均较快，共堆肥物料腐熟快，有利于加快好氧堆肥的进程。

Abstract: Aerobic compost is one of the effective ways of harmless treatment of chicken manure. The purpose of this study is to explore the changes of temperature and nutrients when different kinds of auxiliary materials are mixed with chicken manure for fermentation, so as to obtain better auxiliary materials in actual production. In the experiment, corn straw, rice husk and straw were used as auxiliary materials to adjust the proportion of auxiliary materials, so that the initial car-bon/nitrogen ratio (C/N) of the compost base was 25~30:1 and the initial water content was 55%~65%. The co-composting results showed that all three materials could be used as auxiliary materials for the mixed aerobic composting with chicken manure, and all of them could meet the harmless requirements. However, using corn straw with large particle size, porous and loose as auxiliary material for co-composting with chicken manure is conducive to ventilation and oxygen supply, the temperature and temperature of the heap are fast, the high temperature lasts for a long time, and the heap material is decomposed quickly, which is conducive to speeding up the process of composting.