农业环境科学学报2017，Vol.36Issue(12)：2515-2520,6.DOI:10.11654/jaes.2017-0915
三种干燥方式对粪污厌氧残余物化学性质的影响
The effects of three kinds of drying methods on the chemical properties of fecal anaerobic residues
摘要
Abstract
This study was used to reveal the effects of different drying methods on the chemical properties of fecal anaerobic residues, which provided the theoretical basis for choosing suitable drying measures. After fecal anaerobic residues were dried by vacuum freeze-drying, air-drying, and hot air-drying, a series of evaluation indices was tested, which included pH value, ammonia nitrogen, total nitrogen, total salini-ty, total organic carbon(TOC), and dissolved organic carbon(DOC). The results showed that vacuum freeze-drying had the least loss of chemical components of the three methods, which indicated that the vacuum freeze-drying process could maintain high physical and chemi-cal properties. In this study, the effects of different pre-freezing times on the chemical properties of fecal anaerobic residue were also ana-lyzed. There was no significant difference between 3 hours of freeze-drying and 6 hours of freeze-drying in the characterizations of the fecal anaerobic residues. Thus, freeze-drying for 3 hours is suggested as the best pretreatment because of its easy operation and short time.关键词
粪污厌氧残余物/真空冷冻干燥/风干干燥/热风干燥/化学性质Key words
fecal anaerobic residue/vacuum freeze-drying/air-drying/hot air-drying/chemical property分类
资源环境引用本文复制引用
杨厚花,张克强,闫雷,李佳佳,王丽娜,沈仕洲,赖睿特,王风..三种干燥方式对粪污厌氧残余物化学性质的影响[J].农业环境科学学报,2017,36(12):2515-2520,6.基金项目
国家重点研发计划项目(2017YFD0800403) （2017YFD0800403）
天津市自然科学基金项目(16JCYBJC29700) （16JCYBJC29700）
948项目(2014-S4,2016-X53) （2014-S4,2016-X53）
公益性行业(农业)科研专项基金(201503119-06-01) National Key Research and Development Program(2017YFD0800403) （农业）
Natural Science Foundation of Tianjin,China(16JCYBJC29700) （16JCYBJC29700）
948 Program(2014-S4,2016-X53) （2014-S4,2016-X53）
The Special Scientific Research Fund of Agricultural Public Welfare Profession of China(201503119-06-01) （201503119-06-01）
