化工学报2009，Vol.60Issue(11)：2891-2896,6.
单一缺氧/厌氧UASB同步反硝化产甲烷与A/O组合工艺处理实际晚期渗滤液
Single anoxic/anaerobic UASB simultaneous denitrification and methanogenesis combined with A/O for treatment of real landfill leachate
摘要
Abstract
The treatment of real leachate from municipal landfill with high ammonia nitrogen (NH_4~+-N) content was studied by using a combined process of lab-scale anoxic/anaerobic up-flow anaerobic sludge bed (UASB) -A/O. The method for achieving and stabilizing partial nitrification in the A/O reactor was also investigated. Experimental results clearly showed that COD and nitrogen can be simultaneously deeply removed with this combined biological system, average COD and NH_4~+-N have been reduced from 6537 mg · L~(-1) and 2021 mg· L~(-1) in the raw leachate to 300 mg ·L~(-1) and 15. 6 mg · L~(-1), respectively. For the anoxic UASB reactor, the average organic loading rate reaches to 6. 5 kg· m~(-3) ·d~(-1), and its average organic removal rate is 5. 3 kg ·m~(-3) ·d~(-1). The denitrification and methanogenesis are simultaneously conduced in the UASB reactor, and almost 100% denitrification has been achieved. A stable and long term partial nitrification have been realized by the cooperative effect of FA and FAN, the ammonia nitrogen has been removed through the highly effective partial nitrification with above 99% nitrite accumulation rate.关键词
垃圾渗滤液/同步反硝化产甲烷/生物脱氮/短程硝化/游离氨/游离亚硝酸Key words
landfill leachate/ simultaneous denitrification and methanogenesis/ biological nitrogen removal/ partial nitrification/ FA/ FNA分类
资源环境引用本文复制引用
孙洪伟,王淑莹,时晓宁,张树军,杨庆,彭永臻..单一缺氧/厌氧UASB同步反硝化产甲烷与A/O组合工艺处理实际晚期渗滤液[J].化工学报,2009,60(11):2891-2896,6.基金项目
北京市自然科学基金重点项目(8091001) （8091001）
国家自然科学基金项目(50808004). （50808004）
