农业机械学报2017，Vol.48Issue(5)：304-312,9.DOI:10.6041/j.issn.1000-1298.2017.05.038
添加过磷酸钙的猪粪堆肥污染气体减排工艺优化
Process Optimization of Pollutant Gases Emission Reduction with Superphosphate Addition during Pig Manure Composting
摘要
Abstract
Superphosphate is used as additive to reduce ammonia (NH3),methane (CH4) and nitrous oxide (N2O) emissions during composting,while the availability of phosphorus can be increased.It is an effective way for environmental risk reduction and compost quality improvement.Based on different process parameters significantly influenced pollutant gases production,effects of different aeration rates (AR:0.12L/(kg·min),0.24 L/(kg·min),0.36 L/(kg·min)),moisture contents (MC:55％,60％,65％) and C/N ratios (15,18,21) on CO2,CH4,NH3 and N2O emissions during pig manure composting were studied with superphosphate addition (10％ dry matter of initial raw material).The results showed that the nitrogen fixation capability of superphosphate was obviously reduced by AR of 0.36 L/(kg·min),and AR of 0.12 L/(kg· min) was the best for NH3 emission reduction.With superphosphate addition,it showed an effective control on N2 O emission and significant reduction on CH4production in all treatments.N2O production could be further decreased with AR of 0.12 L/(kg·min)during thermophilic phase of pig manure composting.However,CH4 and N2O generations could be promoted with MC of 65％.All process parameters showed no negative effect on compost stability and maturity in 35 d composting.During pig manure composting with superphosphate addition,the recommended parameters with the lowest greenhouse effect of CO2,CH4,NH3 and N2O were MC of60％,AR of 0.12 L/(kg·min) and C/N ratio of 18.关键词
过磷酸钙/堆肥/工艺参数/温室气体/减排Key words
superphosphate/compost/process parameters/greenhouse gas/emission reduction分类
资源环境引用本文复制引用
吴娟,何胜洲,李国学,李朝晖,包一凡,梁英..添加过磷酸钙的猪粪堆肥污染气体减排工艺优化[J].农业机械学报,2017,48(5):304-312,9.基金项目
国家重点研发计划项目(2016YFD0800600-01)和农业部绒毛用羊产业体系生产与环境控制研究室粪污处理与利用项目 （2016YFD0800600-01）
