低强度超声波加速IC厌氧反应器启动的研究  

Quick Startup of Internal Circulation Anaerobic Reactor Using Low Intensity Ultrasound

作　　者：陈晨[1,2] 马邕文[1,2] 万金泉[1,2] 黄明智[1] 

机构地区：[1]华南理工大学环境科学与工程学院,广东广州510006 [2]华南理工大学制浆造纸工程国家重点实验室,广东广州510006

出　　处：《中国给水排水》2011年第3期33-36,共4页China Water & Wastewater

基　　金：广东省节能减排重大专项(2008A080800003);国家高技术研究发展计划(863)项目(2007AA03Z433)

摘　　要：为了寻求IC厌氧反应器快速启动的方法,采用颗粒污泥(SS为23.28 g/L)接种,其中一组以强度为0.3 W/cm2的超声波照射10 min,另一组直接接种未经处理的颗粒污泥用作对比。结果表明,使用经低强度超声波处理过的颗粒污泥进行IC厌氧反应器的启动时,可缩短启动的时间,约7 d便启动成功。启动后期,有机负荷达到了6 kgCOD/(m3.d),对COD的去除率可达95%。此外,低强度超声波对颗粒污泥形态的影响较小,不会对微生物产生破坏作用,相反还可以促进微生物的生长和代谢,启动结束时的VSS/SS值达到0.82,与种泥相比则有所升高,同时其产甲烷活性也较高。因此,采用低强度的超声波能够实现IC厌氧反应器的快速启动。In order to find a way of quick startup of IC anaerobic reactor, using the granular sludge as the inoculum （SS = 23.28 g/L） , a comparison was made between one group using the granular sludge treated by ultrasound of 0.3 W/cm2 for l0 rain and another group using raw granular sludge. The results show that after ultrasonic treatment, the startup time of IC anaerobic reactor can be shortened, just needs 7 days. The organic loading rate is 6 kgCOD/（m3 · d） , and COD removal rate is 95% at the end of startup. The low intensity ultrasound has little influence on morphology of granular sludge, without destructive action on microorganisms. On the contrary, the low intensity ultrasound can promote the growth and metabolism of microorganisms. The VSS/SS of treated sludge is 0.82 at the end of startup, more than that of raw granular sludge. The methanogenic activity is higher. The low intensity ultrasound can achieve quick startup of IC anaerobic reactor.

关 键 词：低强度超声波 内循环厌氧反应器 颗粒污泥 快速启动 

分 类 号：X703[环境科学与工程—环境工程]