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| 1 | Natural continuous influent nitrifier immigration effects on nitrification and the microbial community of activated sludge systems显示文摘Two sequencing batch reactors(SBRs) were operated for 100 days under aerobic conditions,with one being fed with unsterilized municipal wastewater(USBR), and the other fed with sterilized municipal wastewater(SSBR). Respirometric assays and fluorescence in situ hybridization(FISH) results show that active nitrifiers were present in the unsterilized influent municipal wastewater. The maximum ammonia utilization rate(AUR) and nitrite utilization rate(NUR) of the unsterilized influent were 0.32 ± 0.12 mg NH4+-N/(L·hr) and0.71 ± 0.18 mg NO2--N/(L·hr). Based on the maximum utilization rates, the estimated seeding intensity for the ammonia oxidizing bacteria(AOB) and nitrite oxidizing bacteria(NOB) of the USBR was 0.08 g AOB/(g AOB·day) and 0.20 g NOB/(g NOB·day) respectively. The fraction of nitrifiers/total bacteria in the influent was 5.35% ± 2.1%, the dominant AOB was Nitrosomonas spp., Nitrosococcus mobilis hybridizated with Nsm156, and the dominant NOB was Nitrospira hybridizated with Ntspa662. The influent nitrifiers potentially seeded the activated sludge of the bioreactor and hence demonstrated a mitigation of the acclimatization times and instability during start-up and early operation. The AUR and NUR in the USBR was 15% and 13% higher than the SSBR respectively during the stable stage, FISH results showed that nitrifiers population especially the Nitrospira in the USBR was higher than that in the SSBR. These results indicate that the natural continuous immigration of nitrifiers from municipal influent streams may have some repercussions on the modeling and design of bioreactors. | Lifang Yu Ren Li Robert Delatolla Ru Zhang Xiuling Yang Dangcong Peng | 2018 | Journal of Environmental Sciences2018，30，12： | 7 |
| 2 | Simultaneous detection of enteroviruses from surface waters by real-time RT-PCR with universal primers显示文摘In order to realize simultaneous quantitative detection of various enteroviruses from water samples, a real-time reverse transcriptionpolymerase chain reaction (real-time RT-PCR) method was developed with universal primer pairs designed based on the highly conserved non-coding region sequences of genome targeting poliovirus, coxsackievirus and enterovirus 71. The recombinant plasmid was constructed as enterovirus DNA standard by cloning poliovirus cDNA into a pMD18-T vector. The real-time RT-PCR method utilizing SYBR Green I was optimized. As a result of a series of examinations, the detection limit of the method was found to be 2.31 genome equivalent copy (GEC)/μL, the intraand inter-assay variations were lower than 2% and 5%, respectively, and enteroviruses were well distinguished from other microorganisms. There was a good linear relationship (r 2 = 0.997) between the logarithm of viral density and cycle threshold in a wide range of 2.31 × 10 0 to 2.31 × 10 9 GEC/μL. The validity of the method was further proved by its application for the detection of enteroviruses from various practical water samples. | Chongmiao Zhang | 2010 | Journal of Environmental Sciences2010，22，8： | 6 |
| 3 | Effects of shear force on formation and properties of anoxic granular sludge in SBR显示文摘这份报纸报导效果砍在定序批反应堆(SBR ) 的缺氧的小粒的污泥上的力量。学习在二 SBR (SBR1 和 SBR2 ) 在被执行哪个钠醋酸盐(200 mg 货到付款吗?? | Xinyan ZHANG Binbin WANG Qingqing HAN Hongmei ZHAO Dangcong PENG | 2013 | Frontiers of Environmental Science & Engineering2013，7，6： | 2 |
| 4 | Aerobic granular sludge-a case report 显示文摘 | Peng Dangcong Nicolas Bernet Jean-Philippe Delgenes | 1999 | Wat Res1999，33，3： | 2 |
| 5 | Aerobic Granular Sludge -a Case Report显示文摘 | Dangcong P Bernet N Delgenes J - P | 1999 | Water Res1999，，33： | 1 |
| 6 | Nitrification at low oxygen concentration in biofilm reator显示文摘 | Bernet N Dangcong P Delgenes JP | 2001 | Env Eng2001，127，3： | 1 |
| 7 | Effects of oxygen supply methods on the performance of a sequencing batch reactor for high ammonium nitrification显示文摘 | Dangcong P Bernet N Delgenes J | | 0，，： | 1 |
| 8 | Aerobic granular sludge - a case report显示文摘 | Peng Dangcong Niclos Bernet Jean - Philippe Delgenes | 1999 | Wat Res1999，33，3： | 1 |
| 9 | Aerobic granular sludge-a case report显示文摘 | Peng Dangcong Bernet N Delgnes J P | 1999 | Water Research1999，33，3： | 1 |
| 10 | Aerobic granluar sludge-a case report 显示文摘 | Peng Dangcong Nicolas Bemet Jean-Philippe Delgenes | 1999 | Water Research1999，33，3： | 1 |
| 11 | Aerobic granular sludge-a case report显示文摘 | Dangcong P Bernet N DelgenesJP | 1999 | Wat Res1999，33，： | 1 |
| 12 | Nitrification at low oxygen concentrations in biofilm reactor 显示文摘 | Bernet N Dangcong P Delgenes J P | 2001 | Journal of Environmental Engineering2001，127，6： | 1 |
| 13 | Nitrification at low oxygen concentration in biofilm reator显示文摘 | Bernet N Dangcong P Delgenes JP Moletta R | 2001 | Env Eng2001，127，3： | 1 |
| 14 | Aerobic granular sludge - a case report显示文摘 | Peng Dangcong Nicolas B Delgenes J P | 1999 | Wat Res1999，33，3： | 1 |
| 15 | Aerobic granular sludge-a case report显示文摘 | Dangcong P Bernet N Delgenes J P | 1999 | Water Res1999，33，3： | 1 |
| 16 | Nitrification at low oxygen concentrations in biofilm reactor 显示文摘 | Bernet N Dangcong P Delgnes J P | 2001 | Journal of Environmental Engineering2001，127，6： | 1 |
| 17 | Nitrification at low oxygen concentration in biofilm reactor 显示文摘 | BERNET N DANGCONG P DELGENES J P | 2001 | Journal of Environmental Engineering-ASCE2001，127，3： | 1 |
| 18 | Nitrification at low oxygen concentration in biofilm reactor显示文摘 | Bernet N Dangcong P Delgenès J P | | 0，，03： | 1 |
| 19 | Effects of oxygen supply methods on the performance of a sequencing batch reactor for high ammonium nitrification显示文摘 | Dangcong P Bernet N Delgenes J | 2000 | Water Environ Res2000，72，2： | 1 |
| 20 | Effects of oxygen supply methods on the performance of a sequencing batch reactor for high ammonium nitrification显示文摘 | Dangcong P Bemet N Delgenes J P | | 0，，02： | 1 |
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