摘要
为减少堆肥过程中释放的NH3,采用在鸡粪高温堆肥物料中添加碳源调理剂玉米芯混合堆肥方式,考察不同颗粒下混合堆肥的温度、pH等堆体特性和NH3释放速率,并分析NH3释放机理和减排机理。结果表明,在粒径分别为<5mm、5~10mm、>10mm的小颗粒、中颗粒、大颗粒组玉米芯混合堆肥条件下,各堆体均达到卫生及腐熟标准,且各组堆体温度、pH变化及NH3减排趋势接近,中颗粒组玉米芯由于其具有更适宜的堆积密度和通风条件,堆肥周期内其高温持续最长11d,腐熟效果最好,且NH3释放强度及总释放量最低,最高释放速率仅为100mg/h,分别低于小颗粒和大颗粒释放速率30mg/h和56mg/h,减排效果最好。
In order to reduce the release of NH 3 in the process of layer manure composting, corncob was added in manure composting material, and the composting characteristics such as temperature and pH, NH 3 release rate were investigated under different corncob size, while the mechanism of NH 3 release and emission reduction were also analyzed. The results showed that under the conditions of composting with small, medium and large size corncob of size <5 mm, 5~10 mm and >10 mm respectively, all the manure composting reached hygienic and decomposed standard, and the trend of composting temperature, pH and emission reduction of NH 3 is similar. Because of its more suitable density and ventilation conditions, the longest duration of high temperature in composting cycle is 11 days,and the medium corncob has the best decayed effect, the lowest release intensity and total release of NH 3 . The highest release rate was only 100 mg/h, which was lower than that of small and large corncob 30 mg/h and 56 mg/h respectively. The emission reduction effect was the best.
作者
付丽丽
阚培赢
刘娟
范影
姜彬慧
米文杰
张颜
Fu Lili;Kan Peiying;Liu Juan;Fan Ying;Jiang Binhui;Mi Wenjie;Zhang Yan(College of Petroleum Engineering,Liaoning Shihua University,Fushun Liaoning 113001,China;College of Resource & Civil Engineering,Northeastern University,Shenyang Liaoning 110819,China;Yantan Gold College,Yantai Shandong 265401,China)
出处
《辽宁石油化工大学学报》
CAS
2019年第5期36-39,共4页
Journal of Liaoning Petrochemical University
基金
国家重点研发计划项目（2017YFC1503105）
关键词
鸡粪
恶臭气体
氨气
堆肥
玉米芯
Layer manure
Odorous gas
Ammonia
Composting
Corncob
