载体颗粒对UASB启动和运行性能的影响
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摘要
UASB的启动问题一直是厌氧生物处理领域研究的重点和难点。本文研究了麦饭石、硅藻土对中温UASB处理含油废水的启动、运行和污泥颗粒化的影响,对常规UASB(R0)与投加硅藻土UASB(R1),投加麦饭石UASB(R2)处理含油废水的效果和抗冲击能力进行了考察。研究结果表明:(1)在低负荷条件下(0~2 kg COD·m~(-3)·d~(-1)),R0、R1、R2均具有良好的COD去除效果,而在高容积负荷条件下(OLR=7~9 kg COD·m~(-3)·d~(-1)),R1、R2具有更优的运行性能,平均COD去除率可高达89.71%,90.27%;(2)不同载体对污泥颗粒化的影响不同,经过50天培养,R2粒径大于0.25mm的颗粒污泥高达59.33%,而R1仅为22.11%,低于R0的32.46%;(3)R1、R2具有更强的抗高pH冲击能力,受高pH冲击,R1、R2出水COD去除率恢复到80%所需的时间分别为5天和11天,而R0需要15天。
引文
[1]吴昌永,王然登,彭永臻.污水处理颗粒污泥技术原理与应用[M].北京:中国建筑工业出版社,2011:122-149.
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[3]Chen Y C,Lin C J,Chen H L,et al.Cultivation of biogranules in a continuous flow reactor at low dissolved oxygen[J].Water,Air,&Soil Pollution:Focus,2009,9(3-4):213-221.
[4]龚淑芬,郑明月,马海玲,等.投加甲烷鬃菌对厌氧颗粒污泥培养的影响[J].应用与环境生物学报,2014,20(2):169-173.
[5]Lin J Q,Fang H D,Wu J J,et al.Study on Microorganisms'Immobilization by Different Support Materials in the UASB System[J].Advanced Materials Research,2011,295;323-329.
[6]王进,张振家,张志峰.加速厌氧污泥颗粒化的研究进展[J].环境污染治理技术与设备,2006,7(6):19-23.
[7]Tiwari M,Guha S,Harendranath C.Enhanced granulation in UASB reactor treating low-strength wastewater by natural polymers[J].Water Science&Technology,2004,50(6):235-240.
[8]Yu H Q,Fang H H P,Tay J H.Enhanced sludge granulation in upflow anaerobic sludge blanket(UASB)reactors by Aluminum chloride[J].Chemosphere,2001,44(1):31-36.
[9]Cao X L,Sheng Y X,Cao H B,et al.Comparison of Mg~(2+)and Ca~(2+)enhancing anaerobic granulation in an expanded granular sludge-bed reactor[J].Science China Chemistry,2014,57(11):1596-1601.
[10]Laguna A,Ouattara A,Gonzalez R 0,et al.A simple and low cost technique for determining the granulometry of upflow anaerobic sludge blanket reactor sludge[J].Water Science and Technology,1999,40(8):1-8.
[11]李国刚.水和废水污染物分析测试方法[M].北京:化学工业出版社,2012.
[2]Jia S,Han H,Zhuang H,et al.Impact of high external circulation ratio on the performance of anaerobic reactor treating coal gasification wastewater under thermophilic condition[J].Bioresource Technology,2015,192:507-513.
[3]Chen Y C,Lin C J,Chen H L,et al.Cultivation of biogranules in a continuous flow reactor at low dissolved oxygen[J].Water,Air,&Soil Pollution:Focus,2009,9(3-4):213-221.
[4]龚淑芬,郑明月,马海玲,等.投加甲烷鬃菌对厌氧颗粒污泥培养的影响[J].应用与环境生物学报,2014,20(2):169-173.
[5]Lin J Q,Fang H D,Wu J J,et al.Study on Microorganisms'Immobilization by Different Support Materials in the UASB System[J].Advanced Materials Research,2011,295;323-329.
[6]王进,张振家,张志峰.加速厌氧污泥颗粒化的研究进展[J].环境污染治理技术与设备,2006,7(6):19-23.
[7]Tiwari M,Guha S,Harendranath C.Enhanced granulation in UASB reactor treating low-strength wastewater by natural polymers[J].Water Science&Technology,2004,50(6):235-240.
[8]Yu H Q,Fang H H P,Tay J H.Enhanced sludge granulation in upflow anaerobic sludge blanket(UASB)reactors by Aluminum chloride[J].Chemosphere,2001,44(1):31-36.
[9]Cao X L,Sheng Y X,Cao H B,et al.Comparison of Mg~(2+)and Ca~(2+)enhancing anaerobic granulation in an expanded granular sludge-bed reactor[J].Science China Chemistry,2014,57(11):1596-1601.
[10]Laguna A,Ouattara A,Gonzalez R 0,et al.A simple and low cost technique for determining the granulometry of upflow anaerobic sludge blanket reactor sludge[J].Water Science and Technology,1999,40(8):1-8.
[11]李国刚.水和废水污染物分析测试方法[M].北京:化学工业出版社,2012.