自养脱氮工艺ANITA^(TM) Mox MBBR利用移动填料的生物膜发生短程硝化和厌氧氨氧化反应进行脱氮。通过工程实例运行数据发现,ANITA^(TM) Mox MBBR工艺脱氮负荷为1.2 kg N/(m3·d),其脱氮负荷与生物膜内基质的传输有关,如生物膜密度...自养脱氮工艺ANITA^(TM) Mox MBBR利用移动填料的生物膜发生短程硝化和厌氧氨氧化反应进行脱氮。通过工程实例运行数据发现,ANITA^(TM) Mox MBBR工艺脱氮负荷为1.2 kg N/(m3·d),其脱氮负荷与生物膜内基质的传输有关,如生物膜密度、厚度、温度、基质浓度。为改善基质传输速率,提高脱氮的效率,威立雅研发了由悬浮活性污泥和固定生物膜相结合的ANITATM Mox IFAS工艺,其将短程硝化和厌氧氨氧化反应从同一生物膜中分离,大部分氨氧化菌(AOB)集中在活性污泥中,提高了溶解氧的利用率;而厌氧氨氧化菌An AOB集中在填料生物膜上,改善了基质的传递速率。ANITA^(TM) Mox IFAS工艺运行时所需溶解氧浓度低,仅为0.2~0.5 mg/L。但实际运行数据(50 m^3ANITA^(TM) Mox IFAS反应器)显示,其脱氮负荷是ANITA^(TM) Mox MBBR工艺的2~3倍。展开更多
（第一号通知）2016年8月19日-21日中国西安主办单位：中国建筑工业出版社同济大学《建筑钢结构进展》编辑部香港理工大学《Advances in Structural Engineering》编委会承办单位：西安建筑科技大学协办单位：中国电机工程学会电力土建...（第一号通知）2016年8月19日-21日中国西安主办单位：中国建筑工业出版社同济大学《建筑钢结构进展》编辑部香港理工大学《Advances in Structural Engineering》编委会承办单位：西安建筑科技大学协办单位：中国电机工程学会电力土建专业委员会中国电力工程顾问集团西北电力设计院有限公司。展开更多
The relative locations of AOB,NOB,and DNB were examined for three different kinds of carriers in two types of hybrid bioflm process configurations:integrated fixed-film activated sludge(IFAS)and moving bed bioflm reac...The relative locations of AOB,NOB,and DNB were examined for three different kinds of carriers in two types of hybrid bioflm process configurations:integrated fixed-film activated sludge(IFAS)and moving bed bioflm reactor(MBBR)processes.IFAS water resource recovery facilities(WRRFs)used Anodkainess^TM K1 carriers(KC)at Broomfield,Colorado,USA and polypropylene resin crriers(R)at Fukuok,Japa,whic MBBR WRFS used KC crier at South Adams Couty,Colorado,USA and sponge carriers(SC)at Saga,Japan.Influent COD to N ratios ranged from 8:1 to 15:1.The COD and BOD removal efficiencies were high(96%-98%);NH^+4-N and TN removal efficiencies were more varied at 72%98%and 64%-77%,respectively.The extent of TN removal was higher at high SRT,high COD:N ratio and low DO concentration in the anoxic tank.In IFAS,RC with high specific surface area.(SSA)maintained higher AOB population than KC.Sponge carriers with high SSA maintained higher overall bacteria population than KC in MBBR systems.However,the DNB were not more abundant in high SSA crriers.The diversity of AOB,NOB,and DNB was fairly similar in different carriers.Nitrosomonas sp.dominated over Nitrosospira sp.while denitrifying bacteria included Rhodobacter sp.,Sulfuritalea sp.,.Rubrivivax sp:Paracoccus sp..and Pseudomonas sp.The results from this work suggest that high SRT,high.COD:N ratio,low DO concentration in anoxic tanks,and carriers with greater surface area may be recommended for high COD,BOD and TN removal in WRRFs with IFAS and MBBR systerms.展开更多
文摘自养脱氮工艺ANITA^(TM) Mox MBBR利用移动填料的生物膜发生短程硝化和厌氧氨氧化反应进行脱氮。通过工程实例运行数据发现,ANITA^(TM) Mox MBBR工艺脱氮负荷为1.2 kg N/(m3·d),其脱氮负荷与生物膜内基质的传输有关,如生物膜密度、厚度、温度、基质浓度。为改善基质传输速率,提高脱氮的效率,威立雅研发了由悬浮活性污泥和固定生物膜相结合的ANITATM Mox IFAS工艺,其将短程硝化和厌氧氨氧化反应从同一生物膜中分离,大部分氨氧化菌(AOB)集中在活性污泥中,提高了溶解氧的利用率;而厌氧氨氧化菌An AOB集中在填料生物膜上,改善了基质的传递速率。ANITA^(TM) Mox IFAS工艺运行时所需溶解氧浓度低,仅为0.2~0.5 mg/L。但实际运行数据(50 m^3ANITA^(TM) Mox IFAS反应器)显示,其脱氮负荷是ANITA^(TM) Mox MBBR工艺的2~3倍。
文摘（第一号通知）2016年8月19日-21日中国西安主办单位：中国建筑工业出版社同济大学《建筑钢结构进展》编辑部香港理工大学《Advances in Structural Engineering》编委会承办单位：西安建筑科技大学协办单位：中国电机工程学会电力土建专业委员会中国电力工程顾问集团西北电力设计院有限公司。
基金This research study w as financially supported by the National Research Council of Thailand(N R C T)(#105/2563)Faculty of Engineering Kasetsart University,Bangkok,Thailand(Post Doc.62/08.ENV)+1 种基金Kasetsart University Research and Development Institute(KURDI)(#ENV/2563)The authors also thank Ms.Nimaradee Boonapatcharoen and Dr.Somkiet Techkamjanaruk at Pilot Plant Development and Training Institute,King Mongkut's University of Technology Thonburi(Bangkuntien)for giving helpful suggestions on molecular techniques.
文摘The relative locations of AOB,NOB,and DNB were examined for three different kinds of carriers in two types of hybrid bioflm process configurations:integrated fixed-film activated sludge(IFAS)and moving bed bioflm reactor(MBBR)processes.IFAS water resource recovery facilities(WRRFs)used Anodkainess^TM K1 carriers(KC)at Broomfield,Colorado,USA and polypropylene resin crriers(R)at Fukuok,Japa,whic MBBR WRFS used KC crier at South Adams Couty,Colorado,USA and sponge carriers(SC)at Saga,Japan.Influent COD to N ratios ranged from 8:1 to 15:1.The COD and BOD removal efficiencies were high(96%-98%);NH^+4-N and TN removal efficiencies were more varied at 72%98%and 64%-77%,respectively.The extent of TN removal was higher at high SRT,high COD:N ratio and low DO concentration in the anoxic tank.In IFAS,RC with high specific surface area.(SSA)maintained higher AOB population than KC.Sponge carriers with high SSA maintained higher overall bacteria population than KC in MBBR systems.However,the DNB were not more abundant in high SSA crriers.The diversity of AOB,NOB,and DNB was fairly similar in different carriers.Nitrosomonas sp.dominated over Nitrosospira sp.while denitrifying bacteria included Rhodobacter sp.,Sulfuritalea sp.,.Rubrivivax sp:Paracoccus sp..and Pseudomonas sp.The results from this work suggest that high SRT,high.COD:N ratio,low DO concentration in anoxic tanks,and carriers with greater surface area may be recommended for high COD,BOD and TN removal in WRRFs with IFAS and MBBR systerms.
