不同碳氮比下猪粪高温堆肥腐熟进程研究  

Study on the Decomposing Process of Pig Manure High Temperature Composting under Different Carbon and Nitrogen Ratios

作　　者：朱磊 关文义 程谦勋 朱佳 李孝良[2] 乔策策 刘健健[2] 赵建荣[2] 武艳 ZHU Lei;GUAN Wen-yi;CHENG Qian-xun(Anhui Guozhen Sanitation Technology Co.,Ltd.,Hefei,Anhui 230000)

机构地区：[1]安徽国祯环卫科技有限公司,安徽合肥230000 [2]安徽科技学院,安徽凤阳233100

出　　处：《安徽农业科学》2022年第22期62-65,共4页Journal of Anhui Agricultural Sciences

基　　金：安徽省科技攻关重大专项(201903a06020001);安徽省自然科学基金项目(2108085QC126)。

摘　　要：[目的]有效处理养猪场养殖粪污,建立高效猪粪堆肥工艺。[方法]通过工厂原位高温好氧堆肥试验,以猪粪为主料,以蘑菇渣、木屑为辅料,设置C/N分别为15.0(堆体1)、25.5(堆体2)、34.9(堆体3)的堆肥处理,研究不同碳氮比高温好氧堆肥过程中关键理化指标的变化。[结果]堆体2的温度最高。堆肥结束时各处理pH均符合国家有机肥标准,且堆体2和堆体3显著大于堆体1。堆肥起始C/N逐步减小,至堆肥结束时,各处理C/N分别13.3、16.6和20.5。堆肥结束时各处理总磷、总钾含量比堆肥初始分别增加。3个堆体中,堆体2和堆体3的发芽指数高于堆体1,表明其具有更高的腐熟度。[结论]猪粪与蘑菇渣、木屑高温堆肥能有效处理猪场养殖废弃物,且C/N为25.5时堆肥效果最佳。[Objective]To effectively treat pig farm manure and establish a high-efficiency pig manure composting process.[Method]Through the factory in-situ high-temperature aerobic composting test,pig manure was used as the main material,mushroom residue and sawdust were used as auxiliary materials,and the C/N values were set at 15.0(pile 1),25.5(pile 2)and 34.9(pile 3),respectively.The changes of key physical and chemical indicators during high-temperature aerobic composting with different carbon-nitrogen ratios were studied.[Result]Pile 2 had the highest temperature.At the end of composting,the pH of each treatment conformed to the national organic fertilizer standard,and the pile 2 and pile 3 were significantly larger than pile 1.The initial C/N of composting gradually decreased,and at the end of composting,the C/N of each treatment was 13.3,16.6 and 20.5 respectively.At the end of composting,the contents of total phosphorus and total potassium in each treatment were higher than those at the beginning of composting.Among the three piles,the germination index of piles 2 and 3 was higher than that of piles 1,indicating that they had higher maturity.[Conclusion]High temperature composting of pig manure,mushroom residue and sawdust can effectively treat pig farm waste,and the composting effect was the best when C/N was 25.5.

关 键 词：猪粪 碳氮比 高温好氧堆肥 堆肥腐熟度 

分 类 号：S141.4[农业科学—肥料学]