水力负荷对矿化垃圾反应器处理渗滤液效果的影响  

EFFECT OF HYDRAULIC LOADING ON LEACHATE TREATMENT BY THE AGED REFUSE REACTOR

作　　者：成兆文[1] 孙晓杰[1] 王思明[1] 赵孝芹[1] 肖攀飞 

机构地区：[1]桂林理工大学环境科学与工程学院广西环境污染控制理论与技术重点实验室,广西桂林541004

出　　处：《环境工程》2015年第4期44-47,52,共5页Environmental Engineering

基　　金：国家自然科学基金项目(51368012);"八桂学者"建设工程专项经费资助;广西危险废物处置产业化人才小高地

摘　　要：构建3个微曝气(0.1 L/min)矿化垃圾反应器进行渗滤液处理,研究较长时期内不同水力负荷对矿化垃圾处理渗滤液效果的影响。结果表明:随着水力负荷的增加,反应器对渗滤液中有机污染物和氮污染物的降解能力降低。在试验运行稳定阶段,水力负荷为28,42,56 L/(m3·d)时,COD平均去除率分别为88%、66%、56%;NH+4-N平均去除率分别为94%、90%、71%;TN平均去除率分别为52%、50%、45%。当水力负荷>42 L/(m3·d)时出现NO-2-N累积现象,且水力负荷越大NO-2-N累积越严重。建议微曝气矿化垃圾反应器处理渗滤液过程中水力负荷不宜大于42 L/(m3·d)。The paper conducted the micro-aerated aged refuse reactor for leachate treatment and studied the longterm effect of hydraulic loading on leachate treatment. Results indicated that with the increase of hydraulic loading,the degradation of organics and nitrogen pollutants from leachate were reduced. In the stable stage,when the hydraulic loading reached 28,42,56 L /( m3·d),the average COD removal were 88%,66%,56%,the average NH+4-N removal were 94%,90%,71%,the average TN removal were 52%,50%,45%,respectively. However,once the hydraulic loading more than 42 L /( m3·d),the nitrite accumulation would appear and trend to be more serious with greater hydraulic loading. As a result,a proper hydraulic loading less than 42 L /( m3·d) was suggested during the leachate treatment by the micro-aerated aged refuse reactor.

关 键 词：水力负荷 矿化垃圾反应器 渗滤液 微量曝气 

分 类 号：X703[环境科学与工程—环境工程]