UASB启动及不同HRT对老龄垃圾渗滤液处理效果的影响  

Impact of UASB start-up and different HRT on treatment effect of old landfill leachate

作　　者：刘子旭[1,2] 孙力平[1,2] 李玉友[1,2,3] 邱春生[1,2] 朱永强[1,2] 

机构地区：[1]天津城市建设学院环境与市政工程学院,天津300384 [2]天津市水质科学与技术重点实验室,天津300384 [3]日本东北大学

出　　处：《环境工程学报》2013年第2期483-488,共6页Chinese Journal of Environmental Engineering

基　　金：国家水体污染控制与治理专项(2012ZX07308-002)

摘　　要：在UASB反应器中接种好氧污泥培养厌氧颗粒污泥进行启动,研究不同HRT对老龄(13年)垃圾渗滤液对处理效果的影响情况。通过保持进水COD浓度不变、逐步缩短HRT从而提高容积负荷到40 g COD/(L.d)的方法,可以培育出直径为1～3 mm颗粒污泥,最终产气量稳定在100 L/d,甲烷含量在60%～70%之间,COD去除率保持在90%左右,污泥层最底部MLSS为81 g/L。逐步提高HRT依次为6、12、24、48和72 h考察其对处理效果的影响,当HRT为24 h时处理效果最好,COD去除率最高达到35%左右。Inoculating with activited sludge as the seed material in UASB reactor, the treatment efficiency of municipal landfill leachate （13 years old） was investigated. Keeping the influent COD concentration un- changed as well as a gradual reduction of the HRT, 1 -3 mm anaerobic granular sludge can be obtained at volu- metric loading rate of 40 g COD/（L ~ d）. The final biogas production was 100 L/d and methane content were between 60% -70% , COD removal efficiency remained at 90% , the MLSS of bottom of the sludge layer was 81 g/L. The best treatment effect was at HRT of 48 h comparing the HRT at 6, 12, 24, 48 and 72 h , COD removal rate reached a maximum of 35%.

关 键 词：UASB 老龄垃圾渗滤液 HRT 

分 类 号：X712[环境科学与工程—环境工程]