摘要
厌氧固体产酸相－产甲烷相组成的两相厌氧生物处理工艺可以有效克服传统单相厌氧生物工艺运行过程中存在的池容小、产气率低、易结壳、出料不便等问题，本文研究了厌氧固体产酸相－上流式折板生物膜产甲烷相组成的两相厌氧工艺处理鲜水葫芦的运行特点及机理。试验结果表明，工艺运行稳定，平均产气量为１００Ｌ／ｋｇ鲜水葫芦，气体中甲烷含量７３．６％～８３．４％，系统出水ＣＯＤｃｒ小于２００ｍｇ／Ｌ，ＳＳ４０ｍｇ／Ｌ左右；在稳定运行阶段，产酸相出水ＶＦＡ组成相对稳定，处于混合酸化状态。另外，进行了污泥生物相组成分析。
Diphasic fermentation of water hyacinth to biogas was tried by coulping a solid-phase acidogenic reactor to an upflow baffle methanogenic digestor Solid phase fermentation could reduce digester volume and operation cost This process overcomes problems associated with feeding, control of floating scum normally encountered when untreated water hyacinth are used in conventional biogas digesters In the present study specific gas yield of 100 liter per kg of fresh water hyacinth was obtained with a methane content between 73 6% and 83 4% Effluent CODcr and SS were less than 200mg/L and 40mg/L respectively And microbiological mechanism was also studied
出处
《中国沼气》
北大核心
1996年第3期8-12,共5页
China Biogas
基金
"八.五"国家科技攻关课题
关键词
水葫芦
两相
厌氧
生物处理
ater hyacinth,Two phase, Anaerobic process,
