Start-up and bacterial communities of single-stage nitrogen removal using anammox and partial nitritation (SNAP) for treatment of high strength ammonia wastewater

Zhang, Jianbing; Zhou, Jian; Han, Yuechen; Zhang, Xiaoguang

doi:10.1016/j.biortech.2014.07.042

Cited by 92 publications

(28 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…At the genus level, the dominant genus for anammox bacteria was Candidatus Kuenenia in SNAP process accounting for 12.38%, belonging to the phylum Planctomycetes , class Planctomycetia . The results were in accordance with previous studies that Candidatus Kuenenia commonly was identified as the dominant genus for anammox bacteria in wastewater and sludge anaerobic treatments . At the same time, Candidatus Brocadia (1.86%) as one of the anammox genus was also detected in the SNAP process.…”

Section: Resultsmentioning

confidence: 92%

See 1 more Smart Citation

Simultaneous nitrogen and phosphorus removal by combined anammox and denitrifying phosphorus removal process

Zhang

Qiao

Shao³

et al. 2017

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND: Single-stage nitrogen removal using anammox and partial nitrification process (SNAP process) is a promising process to treat low C/N wastewater relying on ammonia-oxidizing bacteria (AOB) and anaerobic ammonium oxidation (anammox) bacteria. However, excess nitrate (NO 3 − ) in effluent is a common problem for the SNAP process. The denitrifying phosphorus removal (DPAO) process using NO 3 − as electron acceptor was adopted to reduce nitrate in effluent from the SNAP process, while phosphorus removal was also achieved simultaneously. Thus, a novel combined process (DPAO-SNAP process) was established to achieve nitrogen and phosphorus removal simultaneously.

show abstract

Section: Resultsmentioning

confidence: 92%

“…It was exactly consistent with previous results . Moreover, another genus playing a role in anaerobic ammonium oxidizing bacteria (AnAOB) was Ignavibacterium (1.03%), which has often been found in anammox reactors . Armatimonadetes_ gp5 was the secondary genus for the SNAP process.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous nitrogen and phosphorus removal by combined anammox and denitrifying phosphorus removal process

Zhang

Qiao

Shao³

et al. 2017

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…However, using the 16S rDNA amplicon pyrosequencing technology, Zhang et al (2014b) recently reported that the dominant bacterial strains of the single-stage nitrogen removal using anammox and partial nitritation (SNAP) sludge were Xanthomonas campestris, Nitrosomonas europaea and Ignavibacterium album, corresponding to the percentage of 24%, 22% and 20%, respectively. The difference was likely attributed to the different growth conditions for bacteria or the different analytical method, especially for the AnAOB.…”

Section: Community Structures Of the Aob And Anaob In The Canon Sludgementioning

confidence: 99%

Effect of trace hydrazine addition on the functional bacterial community of a sequencing batch reactor performing completely autotrophic nitrogen removal over nitrite

Xiao

Zhang

et al. 2015

Bioresource Technology

View full text Add to dashboard Cite

“…To identify the species of microorganisms in SBBR, PCR-DGGE was conducted to analyse biofilm and activated sludge ( All of the sequences were identified in GenBank, with high homology ranging from 92% to 100% ( M a n u s c r i p t 13 in biological nitrogen removal systems [30][31][32].…”

Section: Microbial Compositionmentioning

confidence: 99%

Performance of one-stage autotrophic nitrogen removal in a biofilm reactor with low C/N ratio

Fang

Guo

et al. 2015

Environmental Technology

View full text Add to dashboard Cite

Wastewater with C/N ratios ranging from 1.00 to 0.33 caused by a gradual increase in influent NH4+-N concentration was used to evaluate the performance of the one-stage nitrogen removal process in a biofilm reactor. The system was operated for 197 days under chemical oxygen demand (COD) concentration of 250 mg L(-1) and influent NH4+-N concentrations ranging from 250 to 750 mg L(-1). The effects of the C/N ratio and dissolved oxygen (DO) on nitrogen removal were evaluated at different influent C/N ratios and DO concentrations, respectively. The microbial composition of the system was examined by scanning electron microscopy and polymerase chain reaction-denaturing gradient gel electrophoresis, and the relative contribution of anaerobic ammonium oxidation (ANAMMOX) to nitrogen removal was assessed by calculating the average rates of ANAMMOX and denitrification in batch experiments. Results showed that the removal efficiencies of total nitrogen (TN), NH4+-N and COD were 74-97%, 75-99% and 64-97%, respectively. The C/N ratio had a significant influence on nitrogen removal efficiency when it was decreased from 1.00 to 0.70, but no significant change was observed when it was reduced from 0.70 to 0.33. DO also correlated with the NH4+-N concentration in the influent, and 3.0 mg L(-1) was found to be a suitable concentration for the influent NH4+-N concentration of 450±5 mg L(-1). Analysis of microbial composition of the system revealed that biofilm and activated sludge were mainly composed of aerobic ammonium-oxidizing bacteria, anaerobic ammonium-oxidizing bacteria (AnAOB) and denitrifying bacteria. Activity tests suggested that AnAOB played an important role in the one-stage autotrophic nitrogen removal process, contributing to about 52.7% of total TN removal via ANAMMOX.

show abstract

Start-up and bacterial communities of single-stage nitrogen removal using anammox and partial nitritation (SNAP) for treatment of high strength ammonia wastewater

Cited by 92 publications

References 28 publications

Simultaneous nitrogen and phosphorus removal by combined anammox and denitrifying phosphorus removal process

Simultaneous nitrogen and phosphorus removal by combined anammox and denitrifying phosphorus removal process

Effect of trace hydrazine addition on the functional bacterial community of a sequencing batch reactor performing completely autotrophic nitrogen removal over nitrite

Performance of one-stage autotrophic nitrogen removal in a biofilm reactor with low C/N ratio

Contact Info

Product

Resources

About