生物蒸发处理垃圾渗滤液节能通风方式的探索
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摘要
为探索生物蒸发过程中的节能通风方式,设置了生物蒸发过程中4个变化频率的间歇性通风方式,比较了不同通风方式下对有机物的去除性能和电能消耗。结果表明,以30 min为1个周期,通风10 min/停止通风20 min,以此循环的间歇通风方式具有最高的水和VS去除率,去除率分别为61. 2%和58. 08%;而通风20 min/停止通风10 min方式下,去除率分别为55. 09%和53. 14%;通风5 min/停止通风10 min方式下,去除率分别为57. 69%和49. 93%;通风10 min/停止通风5 min方式下,去除率分别为50. 61%和46. 74%。通风10 min/停止通风20 min和通风5min/停止通风10 min的用电时间仅是其他两种通风方式的一半,能耗较低。综合考虑去除效果和电耗,通风10 min/停止通风20 min是最好的间歇性通风方式。
To explore an energy efficient ventilation mode in the process of bioevaporation,four intermittent ventilation modes were set up during bioevaporation,and their performances on water and organic matters removal and energy consumption were compared. Results showed that,using 30 minutes as a cycle,the 10 minutes ventilation/20 minutes idling mode reached the highest water and VS removal rates,which were 61. 2% and 58. 08%,respectively. The removal rates for 20 minutes ventilation/10 minutes idling mode were 55. 09% and 53. 14%,respectively. The removal rates were 57. 69% and 49. 93% for 5 minutes ventilation/10 minutes idling mode,and 50. 61% and 46. 74% for 10 minutes ventilation/5 minutes idling mode. At the same time,the ventilation time in the 10 minutes ventilation/20 minutes idling mode and the 5 minutes ventilation/10 minutes idling mode was only half of the other two ventilation modes,indicating half of the energy consumption. Therefore,the 10 minutes ventilation/20 minutes idling mode was the best choice.
To explore an energy efficient ventilation mode in the process of bioevaporation,four intermittent ventilation modes were set up during bioevaporation,and their performances on water and organic matters removal and energy consumption were compared. Results showed that,using 30 minutes as a cycle,the 10 minutes ventilation/20 minutes idling mode reached the highest water and VS removal rates,which were 61. 2% and 58. 08%,respectively. The removal rates for 20 minutes ventilation/10 minutes idling mode were 55. 09% and 53. 14%,respectively. The removal rates were 57. 69% and 49. 93% for 5 minutes ventilation/10 minutes idling mode,and 50. 61% and 46. 74% for 10 minutes ventilation/5 minutes idling mode. At the same time,the ventilation time in the 10 minutes ventilation/20 minutes idling mode and the 5 minutes ventilation/10 minutes idling mode was only half of the other two ventilation modes,indicating half of the energy consumption. Therefore,the 10 minutes ventilation/20 minutes idling mode was the best choice.
引文
[1]Sang N N,Triet L M.Two-stage anoxic/oxic combined membrane bioreactor system for landfill leachate treatment:Pollutant removal performances and microbial community[J].Bioresour Technol,2017,243:738-746.
[2]Yang B Q,Zhang L,Lee Y,et al.Novel bioevaporation process for the zero-discharge treatment of highly concentrated organic wastewater[J].Water Res,2013,47(15):5678-5689.
[3]Ng S K,Plunkett A,Stojceska V,et al.Electro-kinetic technology as a low-cost method for dewatering food byproduct[J].Drying Technology,2011,29(14):1721-1728.
[4]Brereton C.Municipal solid waste-incineration,air pollution control and ash management[J].Resources Conservation&Recycling,1996,16(1/4):227-264.
[5]Yang B Q,Jahng D.Repeated batch-fed bioevaporation of food waste using biofilm-developed sponge[J].Drying Technology,2016,34(1):76-90.
[6]He R,Liu X W,Zhang Z J,et al.Characteristics of the bioreactor landfill system using an anaerobic-aerobic process for nitrogen removal[J].Bioresour Technol,2007,98(13):2526-2532.
[7]Shao L M,He P J,Li G J.In situ nitrogen removal from leachate by bioreactor landfill with limited aeration[J].Waste Manage,2008,28(6):1000-1007.
[8]Madigan M T,Bender K S,Buckley D H,et al.Brock Biology of Microorganisms[M].New York:Pearson Education Inc.,2005.
[9]Beun J,Hendriks A,van Loosdrecht M C M,et al.Aerobic granulation in a sequencing batch reactor[J].Water Res,1999,33(10):2283-2290.
[10]Liu L L,Wang Z P,Jie Y,et al.Investigation on the formation and kinetics of glucose-fed aerobic granular sludge[J].Enzyme Microb Technol,2005,36(4):487-491.
[11]Yang B Q,Zhang L,Jahng D.Importance of initial moisture content and bulking agent for biodrying sewage sludge[J].Drying Technology,2014,32(2):135-144.
[12]Richard T L,Veeken A H M,de Wilde V,et al.Air-filled porosity and permeability relationships during solid-state fermentation[J].Biotechnol Prog,2004,20(5):1372-1381.
[13]Iqbal M K,Shafiq T,Ahmed K.Characterization of bulking agents and its effects on physical properties of compost[J].Bioresour Technol,2010,101(6):1913-1919.
[14]Ruggieri L,Artola A,Gea T,et al.Biodegradation of animal fats in a co-composting process with wastewater sludge[J].Int Biodeter Biodegr,2008,62(3):297-303.
[15]Bradford M M.A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding[J].Anal Biochem,1976,72:248-254.
[2]Yang B Q,Zhang L,Lee Y,et al.Novel bioevaporation process for the zero-discharge treatment of highly concentrated organic wastewater[J].Water Res,2013,47(15):5678-5689.
[3]Ng S K,Plunkett A,Stojceska V,et al.Electro-kinetic technology as a low-cost method for dewatering food byproduct[J].Drying Technology,2011,29(14):1721-1728.
[4]Brereton C.Municipal solid waste-incineration,air pollution control and ash management[J].Resources Conservation&Recycling,1996,16(1/4):227-264.
[5]Yang B Q,Jahng D.Repeated batch-fed bioevaporation of food waste using biofilm-developed sponge[J].Drying Technology,2016,34(1):76-90.
[6]He R,Liu X W,Zhang Z J,et al.Characteristics of the bioreactor landfill system using an anaerobic-aerobic process for nitrogen removal[J].Bioresour Technol,2007,98(13):2526-2532.
[7]Shao L M,He P J,Li G J.In situ nitrogen removal from leachate by bioreactor landfill with limited aeration[J].Waste Manage,2008,28(6):1000-1007.
[8]Madigan M T,Bender K S,Buckley D H,et al.Brock Biology of Microorganisms[M].New York:Pearson Education Inc.,2005.
[9]Beun J,Hendriks A,van Loosdrecht M C M,et al.Aerobic granulation in a sequencing batch reactor[J].Water Res,1999,33(10):2283-2290.
[10]Liu L L,Wang Z P,Jie Y,et al.Investigation on the formation and kinetics of glucose-fed aerobic granular sludge[J].Enzyme Microb Technol,2005,36(4):487-491.
[11]Yang B Q,Zhang L,Jahng D.Importance of initial moisture content and bulking agent for biodrying sewage sludge[J].Drying Technology,2014,32(2):135-144.
[12]Richard T L,Veeken A H M,de Wilde V,et al.Air-filled porosity and permeability relationships during solid-state fermentation[J].Biotechnol Prog,2004,20(5):1372-1381.
[13]Iqbal M K,Shafiq T,Ahmed K.Characterization of bulking agents and its effects on physical properties of compost[J].Bioresour Technol,2010,101(6):1913-1919.
[14]Ruggieri L,Artola A,Gea T,et al.Biodegradation of animal fats in a co-composting process with wastewater sludge[J].Int Biodeter Biodegr,2008,62(3):297-303.
[15]Bradford M M.A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding[J].Anal Biochem,1976,72:248-254.