摘要
采用二级矿化垃圾生物反应器小试装置,研究了秋冬季节对反应器处理渗滤液效果的影响。试验结果表明,第一级反应器出水平均化学需氧量(COD)浓度从秋季的1 076 mg/L上升到冬季的3 084 mg/L,第二级反应器出水COD浓度由秋季的373 mg/L上升为冬季的666 mg/L;相应地,第一级反应器的COD去除率从秋季的70%降到冬季44%,第二级从秋季的60%升到冬季78%,系统总的COD去除率从秋季的90%降到冬季的88%。第一级反应器出水平均氨氮(NH3-N)浓度由秋季的315 mg/L升到冬季的711 mg/L,第二级反应器出水平均NH3-N浓度从秋季的6.5 mg/L升到冬季的52 mg/L。第一级反应器的NH3-N去除率从秋季的69%降到冬季42%,第二级从秋季的98%降至冬季94%。系统总的NH3-N从秋季的99%降到冬季的96%。因此,温度对系统的处理效果是有影响的,并且对第一级反应器的影响要大于第二级。
Effect of temperature on two stage aged-refuse-based reactor treating leachate was studied in autumn and winter. Results showed that＇average concentration of COD in treated effluent increased from 1 076 mg/L of autumn to 3 084 mg/L of winter in the first stage reactor and from 373 mg/L of autumn to 666 mg/L of winter in the second stage reactor. Average concentrations of NH3-N in treated effluent increased from 315 mg/L of autumn to 711 mg/L of winter in the first stage reactor and from 6.5 mg/L of autumn to 52 mg/L of winter in the second stage reactor. Accordingly, average removal rates of COD decreased from 70% of autumn to 44% of winter in the first stage reactor and increased from 60% to 78% in the second stage reactor. Average removal rates of NH3-N decreased from 69% of autumn to 42% of winter in the first stage reactor and from 98% to 94% of winter in the second stage reactor. So the effect of temperature on the first stage aged refuse reactor is more than that of the second stage aged refuse reactor.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2011年第12期185-188,共4页
Environmental Science & Technology
基金
广西高校人才小高地建设"环境工程"创新团队计划项目(桂教人[2007]71号)
广西自然科学基金(2010GXNSFA013015)
