Biological denitrification using poly(butylene succinate) as carbon source and biofilm carrier for recirculating aquaculture system effluent treatment

Zhu, Songming; Deng, Yale; Ruan, Yunjie; Guo, Xishan; Shi, Mingming; Shen, Jiazheng

doi:10.1016/j.biortech.2015.06.021

Cited by 121 publications

(74 citation statements)

References 34 publications

(58 reference statements)

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“…Air was diffused into the bottom of the inner tube periodically to form an inner-loop driving force for water circulation. The feeding influent of RAS wastewater (salinity, 25‰) was slightly adjusted by additions of NH 4 Cl and KNO 3 to obtain approximately 10-15 mg/L TAN and 100-150 mg/L NO 3 À -N, which were similar to the conditions of our previous study (Zhu et al, 2015).…”

Section: Biodegradable Materials and Airlift Inner-loop Sbrmentioning

confidence: 97%

“…The biodegradable PBS granules used in this experiment were identical with our previous study of a marine anoxic fixed bed denitrification reactor (Zhu et al, 2015). The schematic representation of the airlift inner-loop SBR is shown in Fig.…”

Section: Biodegradable Materials and Airlift Inner-loop Sbrmentioning

confidence: 99%

“…The method was according to our previous study (Zhu et al, 2015), which consisted of sampling the attached biofilms from the PBS granules through ultrasonic and vortex shaking treatment. The bacteria were then collected by filtering through a 0.22 lm sterile membrane for genomic DNA extraction by FastDNA Ò Spin Kit for Soil (MP Biomedicals, Santa Ana, California, USA).…”

Section: Microbial Community Analysismentioning

confidence: 99%

“…Such denitrification systems require an external carbon source to act as electron donors because of the low C/N ratio in typical RAS wastewater. During the last decades, various biodegradable polymers (BDPs) acted as simultaneous carbon source and biofilm carrier have been implied and achieved acceptable performance for RAS effluent nitrate removal under anoxic conditions (Boley et al, 2000;Shen and Wang, 2011;GutierrezWing et al, 2012;Zhu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…However, in a marine anoxic denitrification system, as the denitrifiers deplete nitrate and nitrite, sulfate as the next best terminal electron acceptor can be used to produce toxic sulfide with sufficient organic electron donors as the redox potential decreases (Lee et al, 2000;Zhu et al, 2015). Besides, high carbon to NO 3 À ratios, high levels of sulfide and salinity provide favorable conditions to support dissimilatory nitrate reduction to ammonium (DNRA) over denitrification (Giblin et al, 2013), and this phenomenon as a competition to the denitrification process was widely detected in anoxic BDPs denitrification systems, especially in marine environment conditions (Chu and Wang, 2013;Shen and Wang, 2011;Zhu et al, 2015). Though those two problems can be solved by controlling residual DOC concentration in the reactor, effective methods were not reported, which inhibited the application of solid-phase anoxic denitrification in marine RAS practice.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous ammonia and nitrate removal in an airlift reactor using poly(butylene succinate) as carbon source and biofilm carrier

Ruan

Deng

Guo

et al. 2016

Bioresource Technology

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Section: Biodegradable Materials and Airlift Inner-loop Sbrmentioning

confidence: 97%

Section: Biodegradable Materials and Airlift Inner-loop Sbrmentioning

confidence: 99%

Section: Microbial Community Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Simultaneous ammonia and nitrate removal in an airlift reactor using poly(butylene succinate) as carbon source and biofilm carrier

Ruan

Deng

Guo

et al. 2016

Bioresource Technology

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Linkage of microbial kinetics and bacterial community structure of MBR and hybrid MBBR–MBR systems to treat salinity‐amended urban wastewater

Rodríguez-Sánchez

Leyva‐Díaz

González‐Martínez

et al. 2017

Biotechnology Progress

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Three pilot-scale bioreactors were started up and operated under salinity-amended urban wastewater feeding. The bioreactors were configured as membrane bioreactor and two different hybrid, moving bed biofilm reactor-membrane bioreactor and operated with a hydraulic retention time of 9.5 h, a solid residence time of 11.75 days and a total solids concentration of 2500 mg L . The three systems showed excellent performance in suspended solids, BOD , and COD removal (values of 96-100%, 97-99%, and 88-90%, respectively), but poor nitrogen removal (values of 20-30%). The bacterial community structure during the start-up phase and the stabilization phase were different, as showed by β-diversity analyses. The differences between aerobic and anoxic biomass-and between suspended and attached biomass-were higher at the start-up phase than at the stabilization phase. The start-up phase showed high abundances of Chiayiivirga (mean values around 3-12% relative abundance) and Luteimonas (5-8%), but in the stabilization phase, the domination belonged to Thermomonas (3-14%), Nitrobacter (3-7%), Ottowia (3-11.5%), and Comamonas (2-6%), among others. Multivariate redundancy analyses showed that Thermomonas and Nitrosomonas were positively correlated with fast autotrophic kinetics, while Caulobacter and Ottowia were positively correlated with fast heterotrophic kinetics. Nitrobacter, Rhodanobacter, and Comamonas were positively correlated with fast autotrophic and heterotrophic kinetics. © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 33:1483-1495, 2017.

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Nitrification and aerobic denitrification in solid phase denitrification systems with various biodegradable carriers for ammonium‐contaminated water purification

Feng

Zhu

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND: Solid phase denitrification (SPD) has achieved efficient performance mostly under anoxic conditions for nitrate reduction, while it has few applications in achieving simultaneous nitrification and denitrification (SND) for ammonium nitrogen (NH 4 + -N)-rich water treatment. This study attempted to develop aerobic SPD systems with three alkali-pretreated biodegradable carriers (rice husk, pomelo peel and durian peel). RESULTS:The three carriers all achieved much higher average nitrogen removal rates (0.56-0.68 mg NH 4 + -N L −1 h −1 , 0.06-0.50 mg total nitrogen (TN) L −1 h −1 ) than those of the control reactor without carriers (0.18 mg NH 4 + -N L −1 h −1 , <0.01 mg TN L −1 h −1 ) at a dissolved oxygen (DO) concentration of 2.5 mg L −1 , and no decline in SND efficiency occurred when the DO level increased to 7.5 mg L −1 . However, the aerobic denitrification efficiency was reduced with declining organic availability of the biodegradable carrier. Durian peel carrier exhibited the most efficient TN removal performance and the longest efficiently stable stage owing to its higher carbon content, and a lower DO concentration of 2.5 mg L −1 was helpful for achieving a longer efficiently stable stage. There were significant differences in the dominant bacteria attached to the three biofilm carriers. Meanwhile, higher enrichment of nirS-type than nirK-type denitrifier diversity was found, especially at a higher DO level, and 18 new aerobic denitrifiers were identified. CONCLUSION: The aerobic SPD system could achieve efficient nitrification and denitrification, which was strongly affected by the organic availability of the biodegradable carrier. Therefore, aerobic SPD could be considered as an attractive technology for nitrogen removal in ammonium-rich water and wastewater.

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Biological denitrification using poly(butylene succinate) as carbon source and biofilm carrier for recirculating aquaculture system effluent treatment

Cited by 121 publications

References 34 publications

Simultaneous ammonia and nitrate removal in an airlift reactor using poly(butylene succinate) as carbon source and biofilm carrier

Simultaneous ammonia and nitrate removal in an airlift reactor using poly(butylene succinate) as carbon source and biofilm carrier

Linkage of microbial kinetics and bacterial community structure of MBR and hybrid MBBR–MBR systems to treat salinity‐amended urban wastewater

Nitrification and aerobic denitrification in solid phase denitrification systems with various biodegradable carriers for ammonium‐contaminated water purification

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