The effects of undulating seasonal temperature on the performance and microbial community characteristics of simultaneous anammox and denitrification (SAD) process

Zhou, Shun; Song, Zhuangzhuang; Sun, Zhulong; Shi, Xingdong; Zhang, Zhi

doi:10.1016/j.biortech.2020.124493

Cited by 21 publications

(3 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The abundance of Comamonas was also on the rise. Comamonas was detected in a simultaneous anammox and denitrification (SAD) system under an undulating seasonal temperature [ 32 ]. Themomonas and Thauera were reported to readily reduce nitrate and be responsible for nitrite accumulation [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

The Performance and Spatial Distribution of Membrane Fouling in a Sequencing Batch Ceramic Membrane Bioreactor: A Pilot Study for Swine Wastewater Treatment

Yue,

Chen,

Sui

et al. 2024

Membranes

View full text Add to dashboard Cite

The extensive application of ceramic membranes in wastewater treatment draws increasing attention due to their ultra-long service life. A cost-effective treatment for high-strength swine wastewater is an urgent and current need that is a worldwide challenge. A pilot-scale sequencing batch flat-sheet ceramic membrane bioreactor (ScMBR) coupled with a short-cut biological nitrogen removal (SBNR) process was developed to treat high-strength swine wastewater. The ScMBR achieved stable and excellent removal of COD (95.3%), NH4+-N (98.3%), and TN (92.7%), though temperature went down from 20 °C, to 15 °C, to 10 °C stepwise along three operational phases. The COD and NH4+-N concentrations in the effluent met with the discharge standards (GB18596-2001). Microbial community diversity was high, and the genera Pseudomonas and Comamonas were dominant in denitritation, and Nitrosomonas was dominant in nitritation. Ceramic membrane modules of this pilot-scale reactor were separated into six layers (A, B, C, D, E, F) from top to bottom. The total filtration resistance of both the top and bottom membrane modules was relatively low, and the resistance of the middle ones was high. These results indicate that the spatial distribution of the membrane fouling degree was different, related to different aeration scour intensities demonstrated by computational fluid dynamics (CFD). The results prove that the membrane fouling mechanism can be attributed to the cake layer formation of the middle modules and pore blocking of the top and bottom modules, which mainly consist of protein and carbohydrates. Therefore, different cleaning measures should be adopted for membrane modules in different positions. In this study, the efficient treatment of swine wastewater shows that the ScMBR system could be applied to high-strength wastewater. Furthermore, the spatial distribution characteristics of membrane fouling contribute to cleaning strategy formulation for further full-scale MBR applications.

show abstract

Section: Resultsmentioning

confidence: 99%

The Performance and Spatial Distribution of Membrane Fouling in a Sequencing Batch Ceramic Membrane Bioreactor: A Pilot Study for Swine Wastewater Treatment

Yue,

Chen,

Sui

et al. 2024

Membranes

View full text Add to dashboard Cite

show abstract

“…Kuenenia" which is highly relevant for engineering practice, as it can co-exist with or even overtake "Ca. Brocadia" at low temperatures (Jiang et al, 2021;Li et al, 2021;Qian et al, 2021;Wang et al, 2021b;Wu et al, 2020;Zhou et al, 2021). However, not all draft genomes of "Ca.…”

Section: Protein Folding Chaperonesmentioning

confidence: 99%

Physiology of anammox adaptation to low temperatures and promising biomarkers: A review

Kouba

Bachmannová

Podzimek

et al. 2022

Bioresource Technology

View full text Add to dashboard Cite

“…The new process can save running costs and has the potential for significant benefit returns; therefore, future research should focus on optimizing the operating conditions in consideration with environmental variables, such as temperature. Zhou et al (2021) examined the effect of seasonal temperature fluctuations on the denitrification performance of simultaneous anammox and denitrification (SAD), where low temperatures inhibit the activity of AnAOB and 15 °C is the critical temperature for denitrification and carbon removal. Wang et al (2021) investigated the denitrification performance of the anaerobic ammonia oxidation process under rapid cooling conditions by macrogenomics and macroproteomics, and the total AnAOB population abundance (20.9% + 4.9%) and AnAOB protein abundance (75.7% + 3.3%) remained stable when lowered from 35 °C to 15 °C, but Brocadia was expressed to a lesser extent at lower temperatures, suggesting that metabolism of AnAOB is more responsive to low temperature compared to heterotrophs.…”

Section: Changes In Microbial Population In the Reactormentioning

confidence: 99%

Addition of anaerobic ammonium oxidation bacteria to lower running cost during the membrane bioreactor process treating sewage

Sun

Zhang

2021

Water Science and Technology

View full text Add to dashboard Cite

Reducing energy consumption or running cost associated with the membrane bioreactor (MBR) process is a serious challenge that needs to be addressed in treating sewage. The addition of anaerobic ammonium oxidation bacteria (AnAOB) to a running MBR has the potential to lower the aeration rate, thus decreasing the running cost in treating sewage. The results obtained showed that owing to addition of AnAOB, TN and NH4+-N removal rates increased by 9.8% and 1.13%, respectively, while the aeration rate decreased by 50%. Additionally, high throughput sequencing and isotope experiments showed that both AnAOB and heterotrophic denitrification bacteria could survive simultaneously and play an important role in nitrogen removal, with AnAOB having a significantly greater contribution. It can be concluded that the addition of AnAOB reduced the running cost of MBR in treating sewage.

show abstract

The effects of undulating seasonal temperature on the performance and microbial community characteristics of simultaneous anammox and denitrification (SAD) process

Cited by 21 publications

References 39 publications

The Performance and Spatial Distribution of Membrane Fouling in a Sequencing Batch Ceramic Membrane Bioreactor: A Pilot Study for Swine Wastewater Treatment

The Performance and Spatial Distribution of Membrane Fouling in a Sequencing Batch Ceramic Membrane Bioreactor: A Pilot Study for Swine Wastewater Treatment

Physiology of anammox adaptation to low temperatures and promising biomarkers: A review

Addition of anaerobic ammonium oxidation bacteria to lower running cost during the membrane bioreactor process treating sewage

Contact Info

Product

Resources

About