摘要
在室温、pH值 6 .7～ 7.2及充分曝气的条件下 ,于SBR反应器中 ,采用活性污泥处理分别以溶解性有机物苯甲酸钠和葡萄糖为底物的废水 ,发现曝气初期 30min废水的COD去除率达90 %以上 ,同时污泥细胞内的聚合物聚 β 羟基丁酸酯 (poly β hydroxybutyrate ,简称PHB)和糖原含量快速增加。苯甲酸钠废水培养 5 2d的污泥 ,在曝气 30min内吸收的COD约有 5 9%被转化为PHB ,葡萄糖废水培养 5 1d的污泥 ,在曝气 10min内吸收的COD约有 2 4 5 %被转化为糖原而贮存在细胞内 ,这些胞内聚合物含量经 2 40min曝气后基本回复至起始水平。
Artificial wastewater containing soluble organic chemical—benzoate and glucose as substrate respectively was treated by activated sludge in two sequencing batch reactors (SBR) at ambient temperature with pH 6 7-7 2 and entire aeration.Results showed that 90% of COD was removed rapidly in the initial stage of aeration,and at the same time,the content of poly β hydroxybutyrate (PHB) or glycogen in sludge cells increased rapidly.59% of the removed COD of benzoate wastewater was converted into PHB and 24 5% of the removed COD of glucose wastewater was converted into glycogen.Under aeration condition,the content of these intracellular polymers was back to original level after 240 min.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2000年第9期519-521,525,共4页
Fine Chemicals
基金
国家自然科学基金!资助项目 (2 98770 0 88)
优秀青年教师基金!资助项目 (ZP1 7578)
关键词
废水处理
活性污泥
溶解性有机物
糖原
PHB
wastewater treatment
activated sludge
soluble organic chemical
absorb
poly β hydroxybutyrate (PHB)
glycogen
