Dominant &lt;i&gt;Candidatus&lt;/i&gt; Accumulibacter phosphatis Enriched in Response to Phosphate Concentrations in EBPR Process

Nurmiyanto, Awaluddin; Kodera, Hiroya; Kindaichi, Tomonori; Ozaki, Noriatsu; Aoi, Yoshiteru; Ohashi, Akiyoshi

doi:10.1264/jsme2.me17020

Cited by 17 publications

(10 citation statements)

References 41 publications

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“…This suggested that other anaerobic digestion of COD are major rather than oxidation of COD coupling electron transfer to the anode. [40], l Soluble COD, m COD of effluent, n Fed-batch, Continuous feeding, p electricity generation efficiency Open and closed circles are the data obtained in this study and previous studies [17,36,38,39], respectively. Open and closed circles are the data obtained in this study and previous studies [17,36,38,39], respectively.…”

Section: Comparison Of Mfc Performance With Previous Reportsmentioning

confidence: 62%

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Scaling up Microbial Fuel Cells for Treating Swine Wastewater

Goto

Yoshida

2019

Water

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Conventional aerobic treatment of swine wastewater, which generally contains 4500-8200 mg L −1 of organic matter, is energy-consuming. The aim of this study was to assess the application of scaled-up microbial fuel cells (MFCs) with different capacities (i.e., 1.5 L, 12 L, and 100 L) for removing organic matter from swine wastewater. The MFCs were single-chambered, consisting of an anode of microbially reduced graphene oxide (rGO) and an air-cathode of platinum-coated carbon cloth. The MFCs were polarized via an external resistance of 3-10 Ω for 40 days for the 1.5 L-MFC and 120 days for the 12L-and 100 L-MFC. The MFCs were operated in continuous flow mode (hydraulic retention time: 3-5 days). The 100 L-MFC achieved an average chemical oxygen demand (COD) removal efficiency of 52%, which corresponded to a COD removal rate of 530 mg L −1 d −1 . Moreover, the 100 L-MFC showed an average and maximum electricity generation of 0.6 and 2.2 Wh m −3 , respectively. Our findings suggest that MFCs can effectively be used for swine wastewater treatment coupled with the simultaneous generation of electricity.

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Section: Comparison Of Mfc Performance With Previous Reportsmentioning

confidence: 62%

Section: Comparison Of Mfc Performance With Previous Reportsmentioning

confidence: 99%

Scaling up Microbial Fuel Cells for Treating Swine Wastewater

Goto

Yoshida

2019

Water

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“…The IN-MFC was removed from the water channel and re-set in a cylindrical chemostat reactor (φ7.7×130 cm) to evaluate the removal of COD (Nurmiyanto et al, 2017). The approximate volume ratio of MFC:reactor was set to 1:5 (v/v) ( Figure 1C).…”

Section: Cod Removal Evaluation By the Mfcsmentioning

confidence: 99%

On Site Evaluation of a Tubular Microbial Fuel Cell Using an Anion Exchange Membrane for Sewage Water Treatment

2019

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This study evaluated the performance of a tubular microbial fuel cell (MFC) having a core of air-chamber wrapped with an anion exchange membrane in sewage wastewater treatment. Three MFCs were vertically assembled into one module and floated in sewage water channels before and after treatments in the primary sedimentation tank. The two MFC-modules exhibited nearly similar electricity production in the range of 1.3-5.7 Wh·m −3 -MFC while the bottom MFCs (60-90 cm) showed a decrease in electricity compared with the top (0-30 cm) and the middle MFCs (30-60 cm) due to the water leakage into air-cathode. One MFC module was then evaluated for its chemical oxygen demand (COD) removal efficiency with two external resistances of 27 and 3 in a chemostat reactor (MFC:reactor = 1:5, v/v) using three hydraulic retention times (HRTs), i.e., 3, 6, and 12 h. The best COD removal efficiency (COD-RE MFC ), 54 ± 14%, and BOD removal efficiency, 37 ± 17%, were observed with a resistance of 3 and a 12 h HRT, which resulted in 3.8 ± 2.0 A·m −3 of current recovery and 15 ± 7.5% of Coulombic efficiency. The electricity generation efficiency (EGE MFC ) was the best with a resistance of 27 and a 12 h HRT, accounting for 0.19 ± 0.12 kWh·kg-COD −1 with a 17 ± 6.4% COD-RE MFC and 0.65 ± 0.10 Wh·m −3 electricity production. Based on calculations using the COD-RE MFC and EGE MFC, the integration of MFC treatments prior to aeration can reduce wastewater treatment electricity consumption by 55%.

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“…In the case of the inorganic carbon uptake experiment, 14 C-labeled bicarbonate (NaH[ 14 C]O 3 ; specific radioactivity, 51 mCi mmol −1 ) was added at a final concentration of 10.8 μCi vial −1 (400 kBq vial −1 ). Analytical procedures are described in detail in the Supplemental Material and in previous studies ( 5 , 14 ).…”

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confidence: 99%

Effects of Salts on the Activity and Growth of “<i>Candidatus</i> Scalindua sp.”, a Marine Anammox Bacterium

et al. 2018

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Four salts, SEALIFE (a synthetic sea salt), NaCl, Na2SO4, and NaCl+KCl, were applied to monitor the effects of salinity on “Candidatus Scalindua sp.”, a marine anaerobic ammonium oxidation (anammox) bacterium. The highest ammonium consumption of 10 μmol mg protein−1 d−1 was observed at 88 mmol L−1 of Na in the presence of NaCl. The highest inorganic carbon uptake of 0.6 μmol mg protein−1 d−1 was observed at 117 mmol L−1 of Na and at 16 mmol L−1 of K in the presence of NaCl+KCl. Thus, Na and K are both important for maintaining a high growth rate of “Candidatus Scalindua sp.”

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Dominant <i>Candidatus</i> Accumulibacter phosphatis Enriched in Response to Phosphate Concentrations in EBPR Process

Cited by 17 publications

References 41 publications

Scaling up Microbial Fuel Cells for Treating Swine Wastewater

Scaling up Microbial Fuel Cells for Treating Swine Wastewater

On Site Evaluation of a Tubular Microbial Fuel Cell Using an Anion Exchange Membrane for Sewage Water Treatment

Effects of Salts on the Activity and Growth of “<i>Candidatus</i> Scalindua sp.”, a Marine Anammox Bacterium

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