Journal ArticleDOI
The application of aged refuse in nitrification biofilter: Process performance and characterization.
TLDR
The physicochemical and biological analysis show that biodegradation is the main ammonium conversion pathway, which is the critical finding of this work.About:
This article is published in Science of The Total Environment.The article was published on 2019-03-20. It has received 25 citations till now. The article focuses on the topics: Nitrospira & Nitrification.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
The long-term effects of hexavalent chromium on anaerobic ammonium oxidation process: Performance inhibition, hexavalent chromium reduction and unexpected nitrite oxidation.
TL;DR: 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.
Journal ArticleDOI
High-rate partial-nitritation and efficient nitrifying bacteria enrichment/out-selection via pH-DO controls: Efficiency, kinetics, and microbial community dynamics
TL;DR: To enhance PN process via nitrifying bacteria enrichment/out-selection within psychrophilic environment, a novel pH-DO (dissolved oxygen) control strategy was proposed and the response of PN, kinetics, AOB enrichment, and NOB out-selection efficiency was investigated during start-up and long-term operation.
Journal ArticleDOI
Effect of scrubbing by NaClO backwashing on membrane fouling in anammox MBR.
Jiang Chukuan,Xi Tang,Hao Tan,Fan Feng,Zhao-Meng Xu,Qaisar Mahmood,Weizhi Zeng,Min Xiaobo,Chong-Jian Tang +8 more
TL;DR: The changes in membrane resistance, permeate production and membrane morphology with or without CEB in an anammox MBR is examined to reveal the scrubbing effect of different NaClO concentrations (0-596 mg/L).
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Mechanisms of sulfur selection and sulfur secretion in a biological sulfide removal (BISURE) system
TL;DR: The cellular sulfur secretion was revealed, and the "outer-membrane vesicles-dependent" sulfur-secreting hypothesis was proposed to explain the transportation of elemental sulfur from inside to outside of SOB cells so as to promote the development of biological desulfurization technology.
References
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Journal ArticleDOI
Landfill leachate treatment: Review and opportunity
TL;DR: Today, the use of membrane technologies, more especially reverse osmosis (RO), either as a main step in a landfill leachate treatment chain or as single post-treatment step has shown to be an indispensable means of achieving purification.
Journal ArticleDOI
Complete nitrification by Nitrospira bacteria
Holger Daims,Elena V. Lebedeva,Petra Pjevac,Ping Han,Craig W. Herbold,Mads Albertsen,Nico Jehmlich,Márton Palatinszky,Julia Vierheilig,A. G. Bulaev,Rasmus Hansen Kirkegaard,Martin von Bergen,Thomas Rattei,Bernd Bendinger,Per Halkjær Nielsen,Michael Wagner +15 more
TL;DR: The discovery and cultivation of a completely nitrifying bacterium from the genus Nitrospira, a globally distributed group of nitrite oxidizers, and the genome of this chemolithoautotrophic organism encodes the pathways both for ammonia and nitrite oxidation.
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Simultaneous COD, nitrogen, and phosphate removal by aerobic granular sludge
TL;DR: Experimental results strongly suggest that P-removal occurs partly by (biologically induced) precipitation, and monitoring the laboratory scale reactors for a long period showed that N- Removal efficiency highly depends on the diameter of the granules.
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Kinetic characterisation of an enriched Nitrospira culture with comparison to Nitrobacter
TL;DR: Nitrospira is more likely to dominate nitrite oxidation under conditions with low ammonium and nitrite concentrations, which would provide an advantage to them due to their lower K(S) value while avoiding any free ammonia or free nitrous acid inhibition.
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Bacterial community compositions of coking wastewater treatment plants in steel industry revealed by Illumina high-throughput sequencing
Qiao Ma,Yuanyuan Qu,Wenli Shen,Zhaojing Zhang,Jingwei Wang,Liu Ziyan,Duanxing Li,Li Huijie,Jiti Zhou +8 more
TL;DR: High-throughput sequencing was used to reveal the community structures of nine coking wastewater treatment plants in China for the first time and indicated that operation mode, flow rate and temperature might be the key factors in community formation.