农业工程学报2011，Vol.27Issue(3)：260-265,6.DOI:10.3969/j.issn.1002-6819.2011.03.049
不同生长期互花米草的理化特性及厌氧发酵特性
Characteristics of anaerobic digestion and physico-chemical properties of Spartina alterniflora at different growth stages
摘要
Abstract
To assess the physico-chemical properties and the anaerobic biodegradability of S. alterniflora harvested at different growth stages, a wet mesophilic anaerobic experiment was performed. With the extension of growth period, the content of easily biodegradable organic matter decreased while lignocellulose content and C/N ratio increased, moreover,lignocellulosic structure became mature and the crystalinity of cellulose decreased which made the biodegradability of S. alterniflora decreased with the growth stage. However, the metal cations content decreased with the growth stage, it meant that the possibility of inhibitory to anaerobic digestion was decreased. The biotransformation rate was rather low when S. alterniflora was directly digested. The highest value of 42.55％ was obtained when S. alterniflora was collected at May and the lowest value of 18.76％ by August. Taking the biomass and the biogas stability into consideration, August is the optimum stage for harvest.关键词
沼气/厌氧消化/农业废弃物/互花米草/不同生长期/理化特性Key words
biogas/ anaerobic digestion/ agricultural wastes/ Spartina alterniflora/ different growth stages/physico-chemical property分类
资源环境引用本文复制引用
陈广银,郑正,常志州,罗艳..不同生长期互花米草的理化特性及厌氧发酵特性[J].农业工程学报,2011,27(3):260-265,6.基金项目
国家水体污染控制与治理科技重大专项(2008ZX07101-004) （2008ZX07101-004）
农业部行业计划(200903011-01) （200903011-01）
