Using three-bio-electrode reactor to enhance the activity of anammox biomass

Yin, Xin; Qiao, Sen; Zhou, Jiti; Quan, Xie

doi:10.1016/j.biortech.2015.07.096

Cited by 47 publications

(8 citation statements)

References 32 publications

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“…have been shown to be enriched in anode compartments 21,152 . Enriched cultures of the strain KSU-1 had different total nitrogen removal rates in response to different electrode potentials 153 . More recently, electrochemical activity has been confirmed in highly enriched cultures (>99%) of the anammox bacteria Candidatus Brocadia sinica and Candidatus Scalindua spp.…”

Section: Ammonia-oxidizing Exoelectrogensmentioning

confidence: 99%

Electroactive microorganisms in bioelectrochemical systems

et al. 2019

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A vast array of microorganisms from all three domains of life can produce electrical current and transfer electrons to the anodes of different types of bioelectrochemical systems. These exoelectrogens are typically iron-reducing bacteria, such as Geobacter sulfurreducens, that produce high power densities at moderate temperatures. With the right media and growth conditions, many other microorganisms ranging from common yeasts to extremophiles such as hyperthermophilic archaea can also generate high current densities. Electrotrophic microorganisms that grow by using electrons derived from the cathode are less diverse and have no common or prototypical traits, and current densities are usually well below those reported for model exoelectrogens. However, electrotrophic microorganisms can use diverse terminal electron acceptors for cell respiration, including carbon dioxide, enabling a variety of novel cathode-driven reactions. The impressive diversity of electroactive microorganisms and the conditions in which they function provide new opportunities for electrochemical devices, such as microbial fuel cells that generate electricity or microbial electrolysis cells that produce hydrogen or methane.

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Section: Ammonia-oxidizing Exoelectrogensmentioning

confidence: 99%

Electroactive microorganisms in bioelectrochemical systems

et al. 2019

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“…Anammox bacteria of KSU-1 strain (AB057453.1) accounted for about 70-75% of the total biomass in seed biomass by FISH observation as previously described. 35 The synthetic mineral medium was prepared using deionized water according to the following recipe (mg L À1 ): NaCl (1.0), MgSO 4 $7H O (50). KHCO 3 was used as the sole inorganic carbon source and the ammonium and nitrite were supplied in the form of (NH 4 ) 2 SO 4 and NaNO 2 .…”

Section: Organisms and Mediummentioning

confidence: 99%

Effects of short-term exposure to linear anionic surfactants (SDBS, SLS and SDS) on anammox biomass activity

et al. 2016

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“…Recently, several relevant studies have demonstrated that an external electric field and magnetic field energy could increase anammox cell densities and activities. 10,11 Yin et al investigated the effects of an electric field on anammox bacteria and discovered that the nitrogen removal rate could be enhanced by 25.6% compared with the control test, and this study also evaluated the performance of anammox under an external electrostatic field and documented a 44.7% higher nitrogen removal rate. 12 In fact, electromagnetic fields (EMFs) have been applied in biological research for several decades.…”

Section: ■ Introductionmentioning

confidence: 90%

Utilizing Infrared Electromagnetic Fields to Increase Anammox Activity and Growth Rates

Wang

Cui

et al. 2021

ACS EST Water

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Achieving a rapid start-up of the anammox process is still full of challenges and obstacles due to the slow growth of anammox bacteria. In this study, a new physical energy, infrared electromagnetic fields (EMFs) generated from a widely used traditional Chinese medicine apparatus by accelerating charged particles through thermal excitation, proved to be a “bioactivity enhancer” for the anammox process. Short-term batch tests indicated that the specific anammox activity [26.6 mg of N (g of MLSS)−1 h–1] was increased by 76% after the treatment with infrared EMFs. The long-term effect of the EMFs on anammox was studied in upflow column reactors, and a 36.8% start-up time saving, a 17.7% total nitrogen removal increase, and a 22.5% acceleration of the anammox bacteria growth rate were achieved. The reactor that included EMFs also had better resistance to performance deterioration and shock loading. The high-throughput sequencing results showed that the existence of the EMFs increased the relative abundance of Candidatus Kuenenia and Candidatus Jettenia. Furthermore, the evaluation of the community functions based on the Kyoto Encyclopedia of Genes and Genomes indicated infrared EMFs stimulated anammox bacteria by controlling the metabolism of c-di-GMP. Taken together, infrared EMFs are, therefore, considered to be an efficient “bioactivity enhancer” for promoting the anammox process.

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Using three-bio-electrode reactor to enhance the activity of anammox biomass

Cited by 47 publications

References 32 publications

Electroactive microorganisms in bioelectrochemical systems

Electroactive microorganisms in bioelectrochemical systems

Effects of short-term exposure to linear anionic surfactants (SDBS, SLS and SDS) on anammox biomass activity

Utilizing Infrared Electromagnetic Fields to Increase Anammox Activity and Growth Rates

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