Journal ArticleDOI
The long-term effects of hexavalent chromium on anaerobic ammonium oxidation process: Performance inhibition, hexavalent chromium reduction and unexpected nitrite oxidation.
TLDR
The results showed Anammox performance was not affected at low Cr(VI) concentration, but was severely inhibited at 0.8 mg L-1, and microbial community showed no enrichment of Cr( VI) reducing bacteria and other nitrogen transformation-related bacteria.About:
This article is published in Bioresource Technology.The article was published on 2019-07-01. It has received 53 citations till now. The article focuses on the topics: Anammox & Hexavalent chromium.read more
Citations
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Journal ArticleDOI
Quantitative determination of cavitation formation and sludge flotation in Anammox granules by using a new diffusion-reaction integrated mathematical model.
TL;DR: For quantitative evaluation of the Anammox granules flotation in upflow reactors, an integrated mathematical model was formulated based on the principles that the limitation of substrate diffusion would result in bacterial starvation, lysis and subsequently aiding the formation of cavitation in the inner zone of granules.
Journal ArticleDOI
Chromium pollution and its bioremediation mechanisms in bacteria: A review.
TL;DR: In this paper, a review of the bacterial responses against chromium toxicity and scope for their application in bioremediation is discussed, and the differences and similarities between Gram negative and positive bacteria against chromIUM are also highlighted.
Journal ArticleDOI
Role and application of quorum sensing in anaerobic ammonium oxidation (anammox) process: A review
TL;DR: Anaerobic ammonium oxidation (anammox) is a promising biological nitrogen removal process, due to its advantages of high efficiency and low cost as discussed by the authors. However, problems remain in the application, such a...
Journal ArticleDOI
Deciphering the microbial and genetic responses of anammox biogranules to the single and joint stress of zinc and tetracycline.
TL;DR: The findings suggested that anammox could be inhibited by metals and antibiotics, but it has the potential to remove nitrogen from wastewaters containing both of them within the concentration threshold.
Journal ArticleDOI
Visible-light-driven zeolite imidazolate frameworks-8@ZnO composite for heavy metal treatment
TL;DR: Zhang et al. as discussed by the authors developed a facile strategy for constructing ZnO sheets with defective zeolite imidazolate frameworks-8 (ZIF-8) to form visible-light-driven Zif-8@ZnO composite for efficient photoreduction of hexavalent chromium Cr(VI).
References
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Journal ArticleDOI
Stable carbon isotopic Fractionations associated with inorganic carbon fixation by anaerobic ammonium-oxidizing bacteria
Stefan Schouten,Marc Strous,Marcel M. M. Kuypers,W. Irene C. Rijpstra,Marianne Baas,Carsten J. Schubert,Mike S. M. Jetten,Jaap S. Sinninghe Damsté +7 more
TL;DR: Isotopic analyses of Candidatus “Brocadia anammoxidans,” a chemolithoautotrophic bacterium that anaerobically oxidizes ammonium (anammox), show that it strongly fractionates against 13C; i.e., lipids are depleted by up to 47‰ versus CO2.
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Enhanced nitrogen removal from pharmaceutical wastewater using SBA-ANAMMOX process
Chong-Jian Tang,Ping Zheng,Tingting Chen,Jiqiang Zhang,Qaisar Mahmood,Shuang Ding,Xiao-Guang Chen,Jianwei Chen,Da-Tian Wu +8 more
TL;DR: The application of SBA-ANAMMOX process in refractory ammonium-rich wastewater is promising, and the biotoxicity assay on luminescent bacterium Photobacterium phosphoreum showed that the pharmaceutical wastewater imparted severe toxicity.
Journal ArticleDOI
Enhanced anammox consortium activity for nitrogen removal: impacts of static magnetic field.
TL;DR: The findings indicated that the magnetic field was useful and reliable for fast start-up of anammox process since it was proved as a simple and convenient approach to enhance anaerobic ammonium oxidizing activity.
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Bioremediation of chromate: thermodynamic analysis of the effects of Cr(VI) on sulfate-reducing bacteria.
TL;DR: The study by microcalorimetry of heavy metal effects on SRB bioenergetic metabolism appears an appropriate tool to identify better strains to be used for industrial bioremediation process development.
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Effects of chromium (VI) addition on the activated sludge process
Athanasios S. Stasinakis,Nikolaos S. Thomaidis,Daniel Mamais,Evangelia C Papanikolaou,Angeliki Tsakon,Themistokles D. Lekkas +5 more
TL;DR: Activated sludge floc size and structure characterization showed that Cr(VI) concentrations higher than 1 mgl(-1) reduced the filaments abundance, causing the appearance of pin-point flocs and free-dispersed bacteria, indicating that heterotrophic microorganisms are less sensitive to Cr( VI) than nitrifiers.