Improving municipal wastewater nitrogen and phosphorous removal by feeding sludge fermentation products to sequencing batch reactor (SBR)

Yuan, Yue; Liu, Jinjin; Ma, Bin; Liu, Ye; Wang, Bo; Peng, Yongzhen

doi:10.1016/j.biortech.2016.09.103

Cited by 95 publications

(21 citation statements)

References 46 publications

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“…In the sulfur cycle-associated enhanced biological P removal (EBPR) process, poly-S served as one of the energy sources for P uptake and poly-P synthesis and ended up as sulfate; the genus Thauera was regarded as a key organism in the sulfur cycle-associated EBPR process and were assumed to participate in the denitrifying P and S 2– -S removal from sulfate-rich wastewater ( Guo et al, 2019 ). Additionally, the genus Dechloromonas has been reported as denitrifying poly-P accumulating organism that is capable of denitrifying P removal ( Yuan et al, 2016 ). In this study, relatively high abundance of Thauera and Dechloromonas and SO 4 2– -S concentrations were observed in CM-A, suggesting denitrifying P removal might take place in this type of CW-MFC filled with ceramsite granules.…”

Section: Discussionmentioning

confidence: 99%

Nutrient Removal Process and Cathodic Microbial Community Composition in Integrated Vertical-Flow Constructed Wetland – Microbial Fuel Cells Filled With Different Substrates

Zhong

Chen

et al. 2020

Front. Microbiol.

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An integrated vertical-flow constructed wetland-microbial fuel cell system (CW-MFC), consisting of an up-flow chamber and a down-flow chamber, was constructed to treat synthetic sewage wastewater. The performance of CW-MFCs filled with different substrates [i.e., ceramsite (CM-A), quartz (CM-B), and zeolite (CM-C) granules] under various hydraulic retention times (HRTs, 7.6, 4.0, and 2.8 d) was evaluated. Efficient and stable nitrogen (N) and phosphorus (P) removals were observed in CM-A under different HRTs, while the voltage outputs of the CW-MFCs was greatly reduced as the HRTs decreased. With an HRT of 2.8 d, the ammonium (NH 4 + -N) and orthophosphate (PO 4 3– -P) removal efficiencies in CM-A were as high as 93.8 and 99.6%, respectively. Bacterial community analysis indicates that the N removal in the cathode area of CM-A could potentially benefit from the appearance of nitrifying bacteria (e.g., Nitrosomonas and Nitrospira ) and relatively high abundance of denitrifiers involved in simultaneous nitrification and denitrification (e.g., Hydrogenophaga , Zoogloea , and Dechloromonas ) and denitrifying sulfide removal (e.g., Thauera ). Additionally, the difference in N removal efficiency among the CW-MFCs could be partly explained by higher iron (Fe) content in milled ceramsite granules and higher abundance of denitrifiers with nitrate reduction and ferrous ions oxidation capabilities in CM-A compared with that in CM-B and CM-C. Efficient PO 4 3– -P removal in CM-A was mainly ascribed to substrate adsorption and denitrifying phosphorus (P) removal. Concerning the substantial purification performance in CM-A, ceramsite granules could be used to improve the nutrient removal efficiency in integrated vertical-flow CW-MFC.

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Section: Discussionmentioning

confidence: 99%

Nutrient Removal Process and Cathodic Microbial Community Composition in Integrated Vertical-Flow Constructed Wetland – Microbial Fuel Cells Filled With Different Substrates

Zhong

Chen

et al. 2020

Front. Microbiol.

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“…Meanwhile, the abundance of Bryobacter is positively correlated to TP [46]. Arenimonas [48], Iamia [49] and Roseiflexus [50] were frequently detected in activated sludge belonging to heterotrophic bacterium; Thiobacillus was both heterotrophy nitrate-reducing bacteria and also autotrophic sulfide-oxidizing [51]. Zhang et al [52] found the predominance of Thiobacillus in different sulfur-based denitrification systems after treating nitrate-contaminated wastewater, and its existence was related to the sulfur cycle.…”

Section: Bacterial Community Composition At the Genus Levelmentioning

confidence: 99%

Performance and Microbial Community Analysis of a Constructed Rapid Infiltration System at Different Depths

Cheng

Xia

et al. 2020

Pol. J. Environ. Stud.

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To study the removal performance of a constructed rapid infiltration (CRI) system and its microbial community characteristics, we took the demonstration project of a CRI system that has successfully operated for 15 years as an example, aiming to analyze the CRI system's removal performances for COD, NH 4 +-N, TN and TP. Meanwhile, high-throughput sequencing technology was used for the first time to study the microbial community diversity and structure in the CRI system. The results showed that the average removal efficiencies for COD and NH 4 +-N were 75.52% and 92.94%, and the average removal efficiencies for TN and TP were respectively 39.74% and 42.78%. High-throughput sequencing technology indicated that a variety of bacterial phyla were found in CRI's bacterial communities, including Bacteroidetes, Actinobacteria and Acidobacteria, among which Proteobacteria dominated. At the genus level, a spatial variation was illustrated for the diversity and structure of bacterial communities. The dominant genera on the surface layer (0 cm) of CRI were mainly Nocardioides, Sphingomonas, Bryobacter and other microorganisms that can degrade organic matter, and the dominant genera in the inside (30-120 cm) were mainly microorganisms that play an important role in removing nitrogen. This study provided a theoretical basis for the long-term operation of a CRI system.

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“…Hence, various types of water treatment techniques, including the physical, biological, and chemical methods, are being applied to remove phosphate and nitrate from aqueous solutions . Electrocoagulation, degradation, and fermentation are commonly used techniques for this purpose. However, due to high‐energy consumption, sustainability and by‐products issues, utilization of such methods is limited.…”

Section: Introductionmentioning

confidence: 99%

“…Electrocoagulation, 15 degradation, 16 and fermentation 17 are commonly used techniques for this purpose. However, due to high-energy consumption, sustainability and by-products issues, utilization of such methods is limited.…”

mentioning

confidence: 99%

Removal of phosphate and nitrate ions aqueous using strontium magnetic graphene oxide nanocomposite: Isotherms, kinetics, and thermodynamics studies

Sereshti

Afsharian

Bidhendi

et al. 2019

Env Prog and Sustain Energy

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Magnetic Fe3O4 nanoparticle decorated graphene oxide (GO) was modified with strontium nanoparticles (MGO‐Sr) and applied for enhanced removal of phosphate and nitrate ions from river and sewage water samples. The nanocomposite's features were investigated using Fourier transform‐infrared spectrometry, field emission‐scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, and X‐ray diffraction. The effective parameters, adsorption efficiency, regeneration, and field application of MGO‐Sr were also studied. Adsorption isotherm and kinetic models were applied for evaluation of experimental adsorption process. The data was in well comply with Langmuir isotherm and pseudo‐second‐order comparing with other models. Langmuir maximum adsorption capacity was obtained equal to 238.09 mg/g for phosphate and 357.14 mg/g for nitrate. Van't Hoff thermodynamic predicted an exothermic nature for adsorption process followed by a physisorption mechanism. The prepared nanocomposite provided a high‐removal efficiency toward phosphate and nitrate ions in river and sewage water. Hence, it is applicable in water remediation process.

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Improving municipal wastewater nitrogen and phosphorous removal by feeding sludge fermentation products to sequencing batch reactor (SBR)

Cited by 95 publications

References 46 publications

Nutrient Removal Process and Cathodic Microbial Community Composition in Integrated Vertical-Flow Constructed Wetland – Microbial Fuel Cells Filled With Different Substrates

Nutrient Removal Process and Cathodic Microbial Community Composition in Integrated Vertical-Flow Constructed Wetland – Microbial Fuel Cells Filled With Different Substrates

Performance and Microbial Community Analysis of a Constructed Rapid Infiltration System at Different Depths

Removal of phosphate and nitrate ions aqueous using strontium magnetic graphene oxide nanocomposite: Isotherms, kinetics, and thermodynamics studies

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