垃圾渗滤液中难降解有机物与氮同步脱除试验研究
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摘要
通过UASB模拟系统研究了不同环境因子对垃圾渗滤液中难降解有机物及氮同步去除效果的影响,分析了UASB模拟系统利用垃圾渗滤液中腐殖质类物质为碳源,对渗滤液中难降解有机物及氮的去除效果。结果表明,pH为7.9~8.4,ORP在-200~-100和-300~-200 mV范围内COD去除率分别为92.05%和95.08%,总氮去除率分别为62.03%和66.73%。三维荧光光谱分析表明,渗滤液中腐殖质类物质荧光强度呈降低趋势,表明垃圾渗滤液中的反硝化菌可利用部分垃圾渗滤液中难降解有机物进行反硝化。COD与总氮去除的最佳ORP范围为-300~-100 mV,实现了垃圾渗滤液中有机物与氮的同步脱除。
Through the up-flow anaerobic sludge bed( UASB) simulation system, the effects of different environmental factors on the refractory organics and nitrogen synchronization removal in landfill leachate were studied. Then the removal efficiency of organic compounds and nitrogen in leachate was analyzed by using the humus in the UASB simulation system. Results show that under the pH of 7. 9 to 8. 4, ORP of-200 mV to-100 mV and-300 mV to-200 mV, the COD removal rate was 92. 05% and 95. 08%, and total nitrogen removal rate was 62. 03% and 66. 73%, respectively. The three-dimensional fluorescence spectrum analysis showed that humus in the leachate class material showed a trend of decrease, indicating that the denitrification bacteria may use the refractory organic matter in garbage leachate for the denitrification. The optimum ORP range was-300 mV to-100 mV for COD and total nitrogen removal, which realized the simultaneous removal of organic matter and nitrogen in landfill leachate.
Through the up-flow anaerobic sludge bed( UASB) simulation system, the effects of different environmental factors on the refractory organics and nitrogen synchronization removal in landfill leachate were studied. Then the removal efficiency of organic compounds and nitrogen in leachate was analyzed by using the humus in the UASB simulation system. Results show that under the pH of 7. 9 to 8. 4, ORP of-200 mV to-100 mV and-300 mV to-200 mV, the COD removal rate was 92. 05% and 95. 08%, and total nitrogen removal rate was 62. 03% and 66. 73%, respectively. The three-dimensional fluorescence spectrum analysis showed that humus in the leachate class material showed a trend of decrease, indicating that the denitrification bacteria may use the refractory organic matter in garbage leachate for the denitrification. The optimum ORP range was-300 mV to-100 mV for COD and total nitrogen removal, which realized the simultaneous removal of organic matter and nitrogen in landfill leachate.
引文
[1]BRENNAN R B,CLIFFORD E,DEVROEDT C,et al.Treatment of landfill leachate in municipal wastewater treatment plants and impacts on effluent ammonium concentrations[J].Journal of Environmental Management,2017,188:64-72.
[2]ZHANG C,LIU J,YANG X,et al.Degradation of refractory organics in biotreated landfill leachate using high voltage pulsed discharge combined with Ti O2[J].Journal of Hazard Material,2017,326:221-228.
[3]WU L N,ZHANG L Y,XU Y Y,et al.Advanced nitrogen removal using bio-refractory organics as carbon source for biological treatment of landfill leachate[J].Separation and Purification Technology,2016,170:306-313.
[4]SILVA T F C V,VIEIRA E,LOPES A R,et al.How the performance of a biological pre-oxidation step can affect a downstream photo-Fenton process on the remediation of mature landfill leachates:assessment of kinetic parameters and characterization of the bacterial communities[J].Separation and Purification Technology,2017,175:274-286.
[5]ABOOD A R,BAO J G,ABUDI Z D.Biological nutrient removal by internal circulation upflow sludge blanket reactor after landfill leachate pretreatment[J].Journal of Environmental Sciences,2013,25(10):2130-2137.
[6]YUAN W X,XIE B,ZHANG C Q,et al.Quantitative impact of influent characteristics on nitrogen removal via anammox and denitrification in a landfill bioreactor case[J].Bioresource Technology,2017,224:130-139.
[7]CORTEZ S,TEIXEIRA P,OLIVEIRA R,et al.Mature landfill leachate treatment by denitrification and ozonation[J].Process Biochemistry,2011,46(1):148-153.
[8]JEE H S,NISHIO N,NAGAI S,et al.Continuous CH4production from H2and CO2by methanobacterium thermoautotrophicum in a fixed-bed reactor[J].Journal of Fermentation Technology,1988,66(2):235-238.
[9]LACKNER S,HORN H.Evaluating operation strategies and process stability of a single stage nitritation-anammox SBR by use of the oxidation-reduction potential(ORP)[J].Bioresource Technologg,2012,107:70-77.
[10]李丹,何小松,席北斗,等.生活垃圾堆肥渗滤液污染物组成与演化规律研究[J].环境科学,2013,34(7):2918-2924.LI D,HE X S,XI B D,et al.Composition and transformation of leachates during municipal solid waste composting[J].Environmental Science,2013,34(7):2918-2924.
[11]管茂全,周健,覃光旭,等.老龄垃圾渗滤液中有机物与氮的同步降解研究[J].中国给水排水,2013,29(23):23-26.GUAN M Q,ZHOU J,QIN G X,et al.Simultaneous degradation of refractory compounds and nitrogen in aged landfill leachate[J].China Water&Wastewater,2013,29(23):23-26.
[12]王玉双,张洪涛,朱木兰,等.水平潜流人工湿地处理太原市城市再生水的运行效能[J].环境工程学报,2013,7(10):4009-4014.WANG Y S,ZHANG H T,ZHU M L,et al.Performance of horizontal subsurface flow constructed wetlands for treatment of municipal reclaimed wastewater in Taiyuan[J].Chinese Journal of Environmental Engineering,2013,7(10):4009-4014.
[13]张志扬,李江华,贾利云,等.UASB-生物接触氧化-絮凝沉淀法处理皂素废水[J].城市环境与城市生态,2003(增刊1):32-34.ZHANG Z Y,LI J H,JIA L Y,et al.Experimental study on saponin wastewater treatment with combination process of UASBbio-contact oxidation-flocculation and sedimentation[J].Urban Environment&Urban Ecology,2003(Suppl1):32-34.
[14]杨长明,马锐,山城幸,等.组合人工湿地对城镇污水处理厂尾水中有机物的去除特征研究[J].环境科学学报,2010,30(9):1804-1810.YANG C M,MA R,YAMASHIRO M,et al.A pilot-scale study on removal characteristics of organic substances in municipal sewage plant effluent by a hybrid constructed wetland[J].Acta Scientiae Circumstantiae,2010,30(9):1804-1810.
[15]王丽君,刘玉忠,张列宇,等.深型地下土壤渗滤系统中氮的去除途径[J].环境工程学报,2013,7(11):4214-4218.WANG L J,LIU Y Z,ZHANG L Y,et al.Nitrogen removal way in deep subsurface wastewater infiltration system[J].Chinese Journal of Environmental Engineering,2013,7(11):4214-4218.
[16]王丽君,刘玉忠,张列宇,等.地下土壤渗滤系统中溶解性有机物组成及变化规律研究[J].光谱学与光谱分析,2013,33(8):2123-2127.WANG L J,LIU Y Z,ZHANG L Y,et al.Characterizing composition and transformation of dissolved organic matter in subsurface wastewater infiltration system[J].Spectroscopy and Spectral Analysis,2013,33(8):2123-2127.
[17]叶妮妮,周兴求,伍健东.初始p H值对微波预处理颗粒污泥厌氧发酵制氢的影响[J].中国沼气,2012,30(1):13-16.YE N N,ZHOU X Q,WU J D.Effects of initial p H on fermentation hydrogen production by microwave pretreated granular sludge[J].China Biogas,2012,30(1):13-16.
[18]彭永臻,孙洪伟,杨庆.短程硝化的生化机理及其动力学[J].环境科学学报,2008,28(5):817-824.PENG Y Z,SUN H W,YANG Q.The biochemical reaction mechanism and kinetics of partial nitrefication[J].Acta Scientiae Circumstantiae,2008,28(5):817-824.
[19]何小松,于静,席北斗,等.填埋垃圾渗滤液中水溶性有机物去除规律研究[J].光谱学与光谱分析,2012,32(9):2528-2533.HE X S,YU J,XI B D,et al.The remove characteristics of dissolved organic matter in landfill leachate during the treatment process[J].Spectroscopy and Spectral Analysis,2012,32(9):2528-2533.
[20]ZHANG F Z,PENG Y Z,MIAO L,et al.A novel simultaneous partial nitrification anammox and denitrification(SNAD)with intermittent aeration for cost-effective nitrogen removal from mature landfill leachate[J].Chemical Engineering Journal,2017,313:619-628.
[21]黄昌春,李云梅,王桥,等.基于三维荧光和平行因子分析法的太湖水体CDOM组分光学特征[J].湖泊科学,2010,22(3):375-382.HUANG C C,LI Y M,WANG Q,et al.Components optical property of DOM in Lake Taihu based on three-dimensional excitation emission matrix fluorescence[J].Lake Sciences,2010,22(3):375-382.
[22]YANG C,HE X S,XI B D,et al.Characteristic study of dissolved organic matter for electron transfer capacity during initial landfill stage[J].Chinese Journal of Analytical Chemistry,2016,44(10):1568-1574.
[23]席北斗,魏自民,赵越,等.垃圾渗滤液水溶性有机物荧光谱特性研究[J].光谱学与光谱分析,2008,28(11):2605-2608.XI B D,WEI Z M,ZHAO Y,et al.Study on fluorescence characteristic of dissolved organic matter from municipal solid waste landfill leachate[J].Spectroscopy and Spectral Analysis,2008,28(11):2605-2608.
[24]SCHUCH R,GENSICKE R,MERKEL K,et al.Nitrogen and DOC removal from wastewater streams of the metal-working industry[J].Water Research,2000,34(1):295-303.
[25]BAJAJ M,GALLERT C,WINTER J.Effect of phenol addition on COD and nitrate removal in an anoxic suspension reactor[J].Bioresource Technology,2010,101:5159-5167.
[2]ZHANG C,LIU J,YANG X,et al.Degradation of refractory organics in biotreated landfill leachate using high voltage pulsed discharge combined with Ti O2[J].Journal of Hazard Material,2017,326:221-228.
[3]WU L N,ZHANG L Y,XU Y Y,et al.Advanced nitrogen removal using bio-refractory organics as carbon source for biological treatment of landfill leachate[J].Separation and Purification Technology,2016,170:306-313.
[4]SILVA T F C V,VIEIRA E,LOPES A R,et al.How the performance of a biological pre-oxidation step can affect a downstream photo-Fenton process on the remediation of mature landfill leachates:assessment of kinetic parameters and characterization of the bacterial communities[J].Separation and Purification Technology,2017,175:274-286.
[5]ABOOD A R,BAO J G,ABUDI Z D.Biological nutrient removal by internal circulation upflow sludge blanket reactor after landfill leachate pretreatment[J].Journal of Environmental Sciences,2013,25(10):2130-2137.
[6]YUAN W X,XIE B,ZHANG C Q,et al.Quantitative impact of influent characteristics on nitrogen removal via anammox and denitrification in a landfill bioreactor case[J].Bioresource Technology,2017,224:130-139.
[7]CORTEZ S,TEIXEIRA P,OLIVEIRA R,et al.Mature landfill leachate treatment by denitrification and ozonation[J].Process Biochemistry,2011,46(1):148-153.
[8]JEE H S,NISHIO N,NAGAI S,et al.Continuous CH4production from H2and CO2by methanobacterium thermoautotrophicum in a fixed-bed reactor[J].Journal of Fermentation Technology,1988,66(2):235-238.
[9]LACKNER S,HORN H.Evaluating operation strategies and process stability of a single stage nitritation-anammox SBR by use of the oxidation-reduction potential(ORP)[J].Bioresource Technologg,2012,107:70-77.
[10]李丹,何小松,席北斗,等.生活垃圾堆肥渗滤液污染物组成与演化规律研究[J].环境科学,2013,34(7):2918-2924.LI D,HE X S,XI B D,et al.Composition and transformation of leachates during municipal solid waste composting[J].Environmental Science,2013,34(7):2918-2924.
[11]管茂全,周健,覃光旭,等.老龄垃圾渗滤液中有机物与氮的同步降解研究[J].中国给水排水,2013,29(23):23-26.GUAN M Q,ZHOU J,QIN G X,et al.Simultaneous degradation of refractory compounds and nitrogen in aged landfill leachate[J].China Water&Wastewater,2013,29(23):23-26.
[12]王玉双,张洪涛,朱木兰,等.水平潜流人工湿地处理太原市城市再生水的运行效能[J].环境工程学报,2013,7(10):4009-4014.WANG Y S,ZHANG H T,ZHU M L,et al.Performance of horizontal subsurface flow constructed wetlands for treatment of municipal reclaimed wastewater in Taiyuan[J].Chinese Journal of Environmental Engineering,2013,7(10):4009-4014.
[13]张志扬,李江华,贾利云,等.UASB-生物接触氧化-絮凝沉淀法处理皂素废水[J].城市环境与城市生态,2003(增刊1):32-34.ZHANG Z Y,LI J H,JIA L Y,et al.Experimental study on saponin wastewater treatment with combination process of UASBbio-contact oxidation-flocculation and sedimentation[J].Urban Environment&Urban Ecology,2003(Suppl1):32-34.
[14]杨长明,马锐,山城幸,等.组合人工湿地对城镇污水处理厂尾水中有机物的去除特征研究[J].环境科学学报,2010,30(9):1804-1810.YANG C M,MA R,YAMASHIRO M,et al.A pilot-scale study on removal characteristics of organic substances in municipal sewage plant effluent by a hybrid constructed wetland[J].Acta Scientiae Circumstantiae,2010,30(9):1804-1810.
[15]王丽君,刘玉忠,张列宇,等.深型地下土壤渗滤系统中氮的去除途径[J].环境工程学报,2013,7(11):4214-4218.WANG L J,LIU Y Z,ZHANG L Y,et al.Nitrogen removal way in deep subsurface wastewater infiltration system[J].Chinese Journal of Environmental Engineering,2013,7(11):4214-4218.
[16]王丽君,刘玉忠,张列宇,等.地下土壤渗滤系统中溶解性有机物组成及变化规律研究[J].光谱学与光谱分析,2013,33(8):2123-2127.WANG L J,LIU Y Z,ZHANG L Y,et al.Characterizing composition and transformation of dissolved organic matter in subsurface wastewater infiltration system[J].Spectroscopy and Spectral Analysis,2013,33(8):2123-2127.
[17]叶妮妮,周兴求,伍健东.初始p H值对微波预处理颗粒污泥厌氧发酵制氢的影响[J].中国沼气,2012,30(1):13-16.YE N N,ZHOU X Q,WU J D.Effects of initial p H on fermentation hydrogen production by microwave pretreated granular sludge[J].China Biogas,2012,30(1):13-16.
[18]彭永臻,孙洪伟,杨庆.短程硝化的生化机理及其动力学[J].环境科学学报,2008,28(5):817-824.PENG Y Z,SUN H W,YANG Q.The biochemical reaction mechanism and kinetics of partial nitrefication[J].Acta Scientiae Circumstantiae,2008,28(5):817-824.
[19]何小松,于静,席北斗,等.填埋垃圾渗滤液中水溶性有机物去除规律研究[J].光谱学与光谱分析,2012,32(9):2528-2533.HE X S,YU J,XI B D,et al.The remove characteristics of dissolved organic matter in landfill leachate during the treatment process[J].Spectroscopy and Spectral Analysis,2012,32(9):2528-2533.
[20]ZHANG F Z,PENG Y Z,MIAO L,et al.A novel simultaneous partial nitrification anammox and denitrification(SNAD)with intermittent aeration for cost-effective nitrogen removal from mature landfill leachate[J].Chemical Engineering Journal,2017,313:619-628.
[21]黄昌春,李云梅,王桥,等.基于三维荧光和平行因子分析法的太湖水体CDOM组分光学特征[J].湖泊科学,2010,22(3):375-382.HUANG C C,LI Y M,WANG Q,et al.Components optical property of DOM in Lake Taihu based on three-dimensional excitation emission matrix fluorescence[J].Lake Sciences,2010,22(3):375-382.
[22]YANG C,HE X S,XI B D,et al.Characteristic study of dissolved organic matter for electron transfer capacity during initial landfill stage[J].Chinese Journal of Analytical Chemistry,2016,44(10):1568-1574.
[23]席北斗,魏自民,赵越,等.垃圾渗滤液水溶性有机物荧光谱特性研究[J].光谱学与光谱分析,2008,28(11):2605-2608.XI B D,WEI Z M,ZHAO Y,et al.Study on fluorescence characteristic of dissolved organic matter from municipal solid waste landfill leachate[J].Spectroscopy and Spectral Analysis,2008,28(11):2605-2608.
[24]SCHUCH R,GENSICKE R,MERKEL K,et al.Nitrogen and DOC removal from wastewater streams of the metal-working industry[J].Water Research,2000,34(1):295-303.
[25]BAJAJ M,GALLERT C,WINTER J.Effect of phenol addition on COD and nitrate removal in an anoxic suspension reactor[J].Bioresource Technology,2010,101:5159-5167.