摘要
本文阐述两相厌氧消化法与缺氧—厌氧消化法处理味精浓废水的比较试验.进水为6×10~4mg/L～8×10~4mg/L时,两相厌氧消化法COD去除率为78%,产气率为0.15m^3/kgCOD,CH_4含量为50%.缺氧—厌氧消化法COD去除率为82.2%,产气率为0.23m^3/kgCOD,CH.含量达65%.两种方法均可使出水pH值由3.2上升至7.0以上.氯离子和氨氮的去除不明显.综合上述结果与运行管理的稳定程度均是缺氧——厌氧消化法优于两相厌氧消化法.
The monosodium glutamate high concentrated waste water with a COD between 60000 mg/L and 80000mg/L, Cl 20000mg/L, NH3-N 6000mg/L,contains complete salt, and the temperature of the wastewater was 2°C-,4°C.The four high and two low characters make the wastewater treatment difficult. The first task obtains optimazation technology, achieves rational,economi c and high effect treatment results.This paper expounds the study on two-phase anaerobic digestion and anoxic process/anaerobic digestion of the mono-sodium glutamate high concentrated waste water.The results show that a two-phase anaerobic digestion and anoxic process/anaerobic digestion can both raise effluent pH to over 7. A two-phase anaerobic digestion COD removal rate was 66%-92%. The rate of biogas yield was 0.07-0.34 m3/kgCOD,a ver-age 0.15 m3/kgCOD.The methane content in gas was 50%.An anoxic process/ anaerobic digestion COD removal rate was 80.4%-86.6%, average 82.2%, the rate of biogas yield was 0.15-0.46 m3/kgCOD, average 0.23m3/kgCOD. The methane content in gas was 65%.Summarization above results and stable degree of operation management, anoxic proess/anaerobic digestion was better than two-phase anaerobic digestion.
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
1992年第4期1-5,共5页
Urban Environment & Urban Ecology
基金
上海市自然科学基金资助项目
关键词
味精
废水
生物处理
优化
monosodium g lutamate, high concentrated wastewater, biological treatment, two-phase anaerobic digestion
