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dc.contributor.authorAli, Muhammad
dc.contributor.authorShaw, Dario Rangel
dc.contributor.authorSaikaly, Pascal
dc.date.accessioned2020-12-28T13:02:12Z
dc.date.available2020-12-28T13:02:12Z
dc.date.issued2019-09-18
dc.identifier.urihttp://hdl.handle.net/10754/666719
dc.description.abstractSeawater can be directly used for toilet flushing in coastal areas to reduce our dependence on desalination and freshwater resources. The presence of high salt content in the generated wastewater from seawater toilet flushing could limit the performance of conventional biological nitrogen removal processes. Anaerobic ammonium oxidation (anammox) process is regarded as one of the most energy-efficient processes for nitrogen removal from N-rich waste streams. In this study, we demonstrated the application of a novel marine anammox bacterium (Candidatus Scalindua sp. AMX11) in a membrane bioreactor (MBR) to treat moderate-saline (1.2% salinity) and N-rich organic (2 mM acetate) solution, prepared using real seawater. The MBR showed stable performance with nitrogen removal rate of 0.3 kg N m3 d1 at >90% N-removal efficiency. Furthermore, results of 15N stable isotope experiments revealed that anammox bacteria was mainly responsible for respiratory ammonification through NO3 reduction to NH4+ via NO2, and the by-products of respiratory ammonification were used as substrates by anammox bacteria. The dominant role of anammox bacteria in nitrogen removal under saline and organic conditions was further confirmed by genome-centric combined metagenomics and meta-transcriptomic approach. Taken together, these results highlight the potential application of marine anammox bacteria for treating saline wastewater generated from seawater toilet flushing practices.
dc.publisherNCBI
dc.relation.haspartbiosample:SAMN09708594
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dc.relation.haspartbiosample:SAMN09708583
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dc.relation.haspartbiosample:SAMN09708596
dc.relation.urlhttps://www.ncbi.nlm.nih.gov/bioproject/?term=PRJNA482223
dc.titleApplication of an enrichment culture of the marine anammox bacterium Ca . Scalindua for nitrogen removal under moderate salinity and in the presence of organic carbon
dc.typeBioproject
dc.typeDataset
dc.contributor.departmentBiological and Environmental Science and Engineering Division, Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
kaust.personAli, Muhammad
kaust.personShaw, Dario Rangel
kaust.personSaikaly, Pascal
dwc.taxon.scientificNamebioreactor metagenome
dc.relation.issupplementtoDOI:10.1016/j.watres.2019.115345
display.relations<b>Is Supplement To:</b><br/> <ul><li><i>[Article]</i> <br/> Ali, M., Shaw, D. R., & Saikaly, P. E. (2020). Application of an enrichment culture of the marine anammox bacterium “Ca. Scalindua sp. AMX11” for nitrogen removal under moderate salinity and in the presence of organic carbon. Water Research, 170, 115345. doi:10.1016/j.watres.2019.115345. DOI: <a href="https://doi.org/10.1016/j.watres.2019.115345" >10.1016/j.watres.2019.115345</a> Handle: <a href="http://hdl.handle.net/10754/660330" >10754/660330</a></a></li></ul>
dc.identifier.bioprojectPRJNA482223


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