低湿密度竹炭悬浮生物载体在移动床生物膜反应器中的应用
|
摘要
以普通竹炭为原料,采用氢氧化钾活化法改性制备低湿密度竹炭,扫描电镜(SEM)、比表面积和孔径分析(BET-BJH)和傅立叶变换红外光谱(FT-IR)等表征结果表明改性后的竹炭总孔容增多,湿密度降低。将低湿密度竹炭作为悬浮生物载体应用到移动床生物膜反应器(MBBR)中,用以处理模拟生活污水,研究不同影响因素下,对COD、氨氮、TN和TP的去除效果,探索最佳运行工艺。结果表明,低湿密度竹炭悬浮生物载体流化状态好,去除效果较好。对于进水COD质量浓度为200mg/L的模拟生活污水,适宜的MBBR工艺条件为气水比100∶1(体积比)、竹炭填充率15%、水力停留时间4h,处理后出水COD、氨氮、TN和TP去除率分别为83%、77%、48%、57%。
Using ordinary bamboo carbon as raw material,low wet density bamboo carbon was prepared by KOH activation method.SEM,BET-BJH and FT-IR results indicated that the total pore volume of the modified bamboo carbon increased and the wet density decreased.The low wet density bamboo carbon was applied as a suspension biological carrier in the moving bed biofilm reactor(MBBR)for treating simulated domestic sewage.The effects of COD,ammonia nitrogen,TN and TP removal were studied under different influencing factors,and the optimum operating conditions were explored.The results showed that the low wet density bamboo carbon as a suspended microbial carrier had favorable fluidization state and good removal effect.For simulated domestic sewage with influent COD concentration of 200 mg/L,the optimum MBBR operating conditions were air-water ratio 100∶1(volume ratio),filling rate 15%,hydraulic retention time 4 h.The removal rates of COD,ammonia nitrogen,TN and TP in the effluent were 83%,77%,48% and 57%,respectively.
Using ordinary bamboo carbon as raw material,low wet density bamboo carbon was prepared by KOH activation method.SEM,BET-BJH and FT-IR results indicated that the total pore volume of the modified bamboo carbon increased and the wet density decreased.The low wet density bamboo carbon was applied as a suspension biological carrier in the moving bed biofilm reactor(MBBR)for treating simulated domestic sewage.The effects of COD,ammonia nitrogen,TN and TP removal were studied under different influencing factors,and the optimum operating conditions were explored.The results showed that the low wet density bamboo carbon as a suspended microbial carrier had favorable fluidization state and good removal effect.For simulated domestic sewage with influent COD concentration of 200 mg/L,the optimum MBBR operating conditions were air-water ratio 100∶1(volume ratio),filling rate 15%,hydraulic retention time 4 h.The removal rates of COD,ammonia nitrogen,TN and TP in the effluent were 83%,77%,48% and 57%,respectively.
引文
[1]邢鸿飞．全球水资源匮乏压力重重[J]．世界科学，2015(3):11-23.
[2]德力格尔赛汗，张永锋，刘凯．膜生物反应器处理生活污水实验研究[J]．内蒙古工业大学学报（自然科学版），2017,36(2):126-131.
[3] JIN L Y,ZHANG G M,TIAN H F.Current state of sewage treatment in China[J].Water Research,2014,66:85-98.
[4] BERING S,MAZUR J,TARNOWSKI K,et al.The application of moving bed bio-reactor(MBBR)in commercial laundry waste water treatment[J].Science of the Total Environment,2018,627:1638-1643.
[5]张亮，王冬梅，滕新君．MBBR工艺在农村水污染治理中的应用[J]．中国给水排水，2009,25(16):50-52.
[6] BRINK A,SHERIDAN C M,HARDING K G.A kinetic study of a mesophilic aerobic moving bed biofilm reactor(MBBR)treating paper and pulp mill effluents:the impact of phenols on biodegradation rates[J].Journal of Water Process Engineering,2017,19:35-41.
[7] LEYVA DAZ J C,MUO M M,GONZLEZ LPEZ J,et al.Anaerobic/anoxic/oxic configuration in hybrid moving bed biofilm reactor-membrane bioreactor for nutrient removal from municipal wastewater[J].Ecological Engineering,2016,91:449-458.
[8] LI C,ZHANG Z,LI Y,et al.Study on dyeing wastewater treatment at high temperature by MBBR and the thermotolerant mechanism based on its microbial analysis[J].Process Biochemistry,2015,50(11):1934-1941.
[9]胡萃，邹小明，张树聪，等．竹炭及其改性产品作为生物载体的应用研究[J]．环境工程学报，2015,9(7):3115-3120.
[10]张文标，林启晨，徐冲霄，等．我国竹炭研究现状和展望[J]．竹子研究汇刊，2014,33(1):1-6.
[11]秦洁琼．竹炭悬浮填料的筛选及其在MBBR工艺中的应用研究[D]．南京：南京林业大学，2012.
[12]李信仕．不同挂膜方式对移动床生物膜反应器启动的影响[J]．沈阳建筑大学学报（自然科学版），2012,28(5):921-926.
[13]国家环境保护总局《水和废水监测分析方法》编委会．水和废水监测分析方法[M].4版．北京：中国环境科学出版社，2002.
[14]胡雪飞，黄万抚．氨氮废水处理技术研究进展[J]．金属矿山，2017(8):199-203.
[15]刘红，谢倍珍，李安婕．生物活性炭水质净化理论和技术[M]．北京：科学出版社，2007.
[16]张文丽，程方，丁小洋，等．曝气压力对MABR中同步硝化反硝化脱氮的影响[J]．环境工程，2017,35(10).
[17] ZHANG X B,CHEN X,ZHANG C Q,et al.Effect of filling fraction on the performance of sponge-based moving bed biofilm reactor[J].Bioresource Technology,2016,219:762-767.
[2]德力格尔赛汗，张永锋，刘凯．膜生物反应器处理生活污水实验研究[J]．内蒙古工业大学学报（自然科学版），2017,36(2):126-131.
[3] JIN L Y,ZHANG G M,TIAN H F.Current state of sewage treatment in China[J].Water Research,2014,66:85-98.
[4] BERING S,MAZUR J,TARNOWSKI K,et al.The application of moving bed bio-reactor(MBBR)in commercial laundry waste water treatment[J].Science of the Total Environment,2018,627:1638-1643.
[5]张亮，王冬梅，滕新君．MBBR工艺在农村水污染治理中的应用[J]．中国给水排水，2009,25(16):50-52.
[6] BRINK A,SHERIDAN C M,HARDING K G.A kinetic study of a mesophilic aerobic moving bed biofilm reactor(MBBR)treating paper and pulp mill effluents:the impact of phenols on biodegradation rates[J].Journal of Water Process Engineering,2017,19:35-41.
[7] LEYVA DAZ J C,MUO M M,GONZLEZ LPEZ J,et al.Anaerobic/anoxic/oxic configuration in hybrid moving bed biofilm reactor-membrane bioreactor for nutrient removal from municipal wastewater[J].Ecological Engineering,2016,91:449-458.
[8] LI C,ZHANG Z,LI Y,et al.Study on dyeing wastewater treatment at high temperature by MBBR and the thermotolerant mechanism based on its microbial analysis[J].Process Biochemistry,2015,50(11):1934-1941.
[9]胡萃，邹小明，张树聪，等．竹炭及其改性产品作为生物载体的应用研究[J]．环境工程学报，2015,9(7):3115-3120.
[10]张文标，林启晨，徐冲霄，等．我国竹炭研究现状和展望[J]．竹子研究汇刊，2014,33(1):1-6.
[11]秦洁琼．竹炭悬浮填料的筛选及其在MBBR工艺中的应用研究[D]．南京：南京林业大学，2012.
[12]李信仕．不同挂膜方式对移动床生物膜反应器启动的影响[J]．沈阳建筑大学学报（自然科学版），2012,28(5):921-926.
[13]国家环境保护总局《水和废水监测分析方法》编委会．水和废水监测分析方法[M].4版．北京：中国环境科学出版社，2002.
[14]胡雪飞，黄万抚．氨氮废水处理技术研究进展[J]．金属矿山，2017(8):199-203.
[15]刘红，谢倍珍，李安婕．生物活性炭水质净化理论和技术[M]．北京：科学出版社，2007.
[16]张文丽，程方，丁小洋，等．曝气压力对MABR中同步硝化反硝化脱氮的影响[J]．环境工程，2017,35(10).
[17] ZHANG X B,CHEN X,ZHANG C Q,et al.Effect of filling fraction on the performance of sponge-based moving bed biofilm reactor[J].Bioresource Technology,2016,219:762-767.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |