摘要
以填充床生物膜酸化反应器与上流式污泥床反应器（ＵＡＳＢ）甲烷化反应器组成的二相厌氧消化装置处理高浓度啤酒废水或合成废水，最大处理能力为３２～３５ｋｇＣＯＤ／ｄ·ｍ３。提出了二相工艺高负荷运行时最低必需酸化率的概念。进水浓度５０００ｍｇＣＯＤ／Ｌ，容积负荷３０ｋｇＣＯＤ／ｄ·ｍ３时，最低酸化率为２８％。对主要操作参数的灵敏度分析表明，操作负荷、酸化率和进水碱度是影响ＣＯＤ去除率的主要操作参数。对二相厌氧消化系统中影响反应器内微生物群系的生态平衡、微生物本征活性和反应器宏观行为的主要因素进行了分类和综合讨论。
A two phase anaerobic digestion system was composed of a fixed bed biofilm acidification reactor and an UASB methanization reactor can treat brewing wastewater or synthesized wastewater of high concentration with its highest capacity of 32～35 kgCOD/d·m 3. The concept of desired minimum acidification rate was proposed for the two phase system running at a high volume load. When the feed concentration was 5000mgCOD/L and the volume load was 30kgCOD/d·m 3, the desired minimum acidification rate was 28%.The susceptibility analysis showed that, in the experimental conditions,the volume load, acidification rate and feed alkalinity were main factors affecting the COD removal rate. The influence of main parameters on the ecological balance among microbial populations, the microbial intrinsic bioactivity and the bioreactor behavior were also discussed.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1997年第5期469-473,共5页
China Environmental Science
基金
福建省自然科学基金
关键词
二相厌氧消化
工艺
有机废水
废水处理
two phase anaerobic digestion technology,packed biofilm acidification reactor, susceptibility analysis of process parameters, acidification rate.
