scispace - formally typeset
Search or ask a question
Author

Fan Feng

Bio: Fan Feng is an academic researcher from Central South University. The author has contributed to research in topics: Anammox & Chemistry. The author has an hindex of 5, co-authored 15 publications receiving 120 citations.

Papers
More filters
Journal ArticleDOI
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.

74 citations

Journal ArticleDOI
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).

40 citations

Journal ArticleDOI
TL;DR: The physicochemical and biological analysis show that biodegradation is the main ammonium conversion pathway, which is the critical finding of this work.

25 citations

Journal ArticleDOI
TL;DR: In this article, the role of bacterial cell and extracellular polymeric substance (EPS) on adsorption of heavy metal remains elusive, and the authors found that the EPS content highly positively correlated with the Cu(II) content adsorbed by EPS.
Abstract: Activated sludge adsorbs heavy metals in the water during the water treatment process, which brings trouble to the subsequent treatment of the waste sludge. However, the role of bacterial cell and extracellular polymeric substance (EPS) on adsorption of heavy metal remains elusive. Here, we found the anammox sludge possessed the highest Cu(II) adsorption capacity (14.68 mg/g SS), followed by the activated sludge and denitrifying sludge. The Cu(II) adsorption capacities of sludges increased when sludge dosages and initial Cu(II) concentrations increased. These sorption processes were all well explained by Langmuir isotherms. Analysis of the Cu(II) distribution found that Cu(II) adsorbed by bacterial cells (35 %) were much higher than the Cu(II) adsorbed by EPS (4–11 %). This implied that bacterial cells were the most important carrier for the sludge to adsorb Cu(II). Additionally, the difference in Cu(II) adsorption of sludge was due to the inconsistent Cu(II) content adsorbed by EPS. Correlation analysis showed that the EPS content highly positively correlated with the Cu(II) content adsorbed by EPS, which indicates that the EPS content was crucial factor causing the difference in Cu(II) adsorption. FITR analysis shows that another key factor for disparate Cu(II) adsorption was functional groups, including amide I and amide II of protein, C–H from aliphatic, as well as O H and C O from carboxylic acid. This study provides more information for understanding the role of the bacterial cell and EPS in the adsorption of heavy metals, which might provide a theoretical basis for the treatment of heavy metals-containing sludge.

16 citations

Journal ArticleDOI
TL;DR: In this paper, NH2OH was employed to test the recovery performance because of its stimulation to anammox bacteria, and the recovery efficiency was over 166% with the effluent Cr(VI and Cr(III) below 0.25 and 0.12% respectively.

15 citations


Cited by
More filters
Journal ArticleDOI
TL;DR: The key issues that require urgent attention to facilitate large scale and integrated application of AnMBR technology are identified and future research perspectives relating to the prevalent issues are proposed.

84 citations

Journal ArticleDOI
TL;DR: Anammox has been recognized as the current most cost-effective nitrogen removal process However, the issue of excess nitrate residue from its effluent remains to be addressed in order to meet the
Abstract: Anammox has been recognized as the current most cost-effective nitrogen removal process However, the issue of excess nitrate residue from its effluent remains to be addressed in order to meet the

84 citations

Journal ArticleDOI
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.

74 citations

Journal ArticleDOI
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.

53 citations

Journal ArticleDOI
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.

41 citations