作　　者： ; ; ;

机构地区： 郑州航空工业管理学院土木建筑工程学院资源与环境技术研究所

出　　处： 《农业环境科学学报》 2012年第3期626-630,共5页

摘　　要： 餐厨垃圾堆肥是实现营养物质资源良性循环的重要途径,为了研究不同季节环境条件下餐厨垃圾与小麦秸秆混合高温好氧堆肥过程中碳素物质变化规律,试验设定了具有中原地区季节代表性的3种环境温度在15、25、35℃条件下分别进行了为期21d的堆肥。结果表明,餐厨垃圾和麦秸混合堆肥在25℃和35℃条件下,堆体温度能满足堆肥产品无害化要求,而15℃时不能满足;35℃条件下的pH值在前期下降幅度最多,15℃条件下pH值则始终保持在6.0以下;在25℃和35℃条件下,TOC含量明显比15℃条件下下降幅度大,堆肥物料中的糖类物质很容易被微生物分解,经过10d95%以上的糖类物质就被分解,粗纤维降解率均达到60%以上,而在15℃条件下到堆肥结束时,仍有30%多的糖类没有被分解,粗纤维也只分解了27.57%。 Composting of kitchen waste is an important way to achieve the virtuous circle of the nutrition material resources. In order to study the changes of carbon materials during the process of high temperature aerobic eomposting, in which the kitchen waste was mixed with the wheat straw in different season environment conditions, the compost was proceeded for 21 days and under 15 ℃, 25 ℃ and 35 ℃ three ambient temperature conditions which had season representative for Central Plain. The result showed that the compost temperature of kitchen waste mixed with wheat straw could meet the harmless requirements under the conditions of 25 ~C and 35 ℃, meanwhile, it could not meet under condition of 15 ℃. The initial pH value of compost material was partial acid, and during the initial stage of composting, the pH value had a descending trend and then slowly rose again. The pH value decreased mostly in the early period under 35 ℃, it kept below 6.0 all the time under 15 ℃. Under the condition of 25℃ and 35 ℃, TOC content obviously declined faster than that of 15 ℃. Carbohydrate material in compost material was also easier to be decomposed by microorganisms, more than 95% of the carbohydrate material was decomposed during 10 days, crude fiber degradation rate reached 60% above, but there were still more than 30% carbohydrate material not to be decomposed and 27.57% crude fiber was decomposed only at the end of the eomposting process under the condition of 15 ℃.

关 键 词： 餐厨垃圾 麦秸 堆肥 碳素物质

领　　域： [农业科学] [农业科学]