Short-term impacts of Cu, CuO, ZnO and Ag nanoparticles (NPs) on anammox sludge: CuNPs make a difference

Zhang, Zheng-Zhe; Xu, Jiajia; Shi, Zhi-Jian; Cheng, Ya-Fei; Ji, Zheng-Quan; Deng, Rui; Jin, Ren‐Cun

doi:10.1016/j.biortech.2017.03.135

Cited by 109 publications

(27 citation statements)

References 31 publications

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“…The measurement of specific anammox activity (SAA) was according to previous research in the authors' group. 20 Ammonium removal rate (ARR) was calculated by Eqn (1) and nitrite removal rate (NRR) by Eqn (2).…”

Section: Methodsmentioning

confidence: 99%

“…The concentrations of NH 4 + -N, NO 2 − -N and COD (glucose) in the influent were 80 ± 5, 160 ± 5, and 214 ± 5 mg L −1 , respectively. The composition of mineral medium was (g L −1 ): KH 2…”

Section: Biomass and Wastewater Characteristicsmentioning

confidence: 99%

“…As a new type of biological technology, simultaneous anammox and denitrification (SAD) has attracted wide attention worldwide due to its advantages such as requiring no addition of an external carbon source and less sludge production . Anammox has been regarded as a cost‐effective and energy‐saving method for nitrogen removal . Compared with traditional nitrification–denitrification, anammox is the autotrophic oxidation of ammonium to N 2 using nitrite as an electron acceptor without the presence of organic carbon and oxygen .…”

Section: Introductionmentioning

confidence: 99%

“…1 Anammox has been regarded as a cost-effective and energy-saving method for nitrogen removal. 2 Compared with traditional nitrification-denitrification, anammox is the autotrophic oxidation of ammonium to N 2 using nitrite as an electron acceptor without the presence of organic carbon and oxygen. 3 Therefore, the anammox process can save 60% aeration, and 100% organic carbon.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced carbon and nitrogen removal performance of simultaneous anammox and denitrification (SAD) with mannitol addition treating saline wastewater

Yang

Zhu

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Simultaneous anammox and denitrification (SAD) can remove carbon and nitrogen. However, its performance is suppressed under saline surroundings. In this work, mannitol was used to enhance a SAD process treating saline wastewater. RESULTS The optimum carbon and nitrogen removal was achieved at 0.2 mmol L−1 mannitol, during which ammonium removal efficiency (ARE), nitrite removal efficiency (NRE) and chemical oxygen demand (COD) removal efficiency were 96.95%, 93.70% and 90.05%, respectively. The maximum ammonium removal rate (ARR), nitrite removal rate (NRR) and the specific anammox activity (SAA) were increased by 25.49%, 55.84% and 33.83% with optimum addition (0.2 mmol L−1 mannitol) respectively. The diameter of sludge was enlarged with the addition of mannitol (≤0.2 mmol L−1). The Tseng‐Wayman model was more suitable to simulate the whole SAD process. The modified logistic model, the modified Boltzman model and the modified Gompertz model were all appropriate to describe nitrogen removal in a typical cycle with the addition of mannitol. CONCLUSION Mannitol was effective in enhancing a SAD process treating saline wastewater, and maximum nitrogen removal was achieved at mannitol = 0.2 mmol L−1. The Tseng‐Wayman model satisfactorily predicted the whole SAD process treating saline wastewater with mannitol addition. © 2018 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 99%

Section: Biomass and Wastewater Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced carbon and nitrogen removal performance of simultaneous anammox and denitrification (SAD) with mannitol addition treating saline wastewater

Yang

Zhu

et al. 2018

J of Chemical Tech & Biotech

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“…The extraction process of EPS was described in Zhang et al [20]. The extracted EPS was used to quantitatively analyze the content of protein (PN) according to the Bradford method, with bovine serum albumin being the standard protein.…”

Section: Eps Extraction and Characterizationmentioning

confidence: 99%

Responses of Anammox Granular Sludge to Long-Term Rare Earth Element Feeding: Lanthanum as a Case

Huang

2020

Sustainability

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A tremendous input of ammonium and rare earth elements (REEs) has entered the surroundings on account of the discharge and leak of leaching agents during rare earth in-suit leaching mining, which has threatened various organisms. Anammox has the potential to release nitrogen contamination, but the potential impacts of REEs on anammox bacteria remain unclear. In this study, La (III) was chosen as a case to explore the long-term impacts on anammox granular sludge. The 5 mg L−1 La (III) which was examined hardly affected the anammox granulates because of the defense of extracellular polymeric substances. The high La concentrations (10–50 mg L−1) caused intercellular accumulation and the significant inhibition of nitrogen removal performance and dehydrogenase activity, especially a decrease in the relative abundance of Ca. Kuenenia. Moreover, it also induced patently oxidative damage and affected cell membrane integrity. Notably, extracellular polymeric substances have a limited defense capability; neither La3+ nor Ca2+/Mg2+ efflux-related genes aggravated the intracellular accumulation of La.

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Role of Additives on Anaerobic Digestion, Biomethane Generation, and Stabilization of Process Parameters

Isha

Jha

D’Silva

et al. 2023

Biofuel Extraction Techniques

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Short-term impacts of Cu, CuO, ZnO and Ag nanoparticles (NPs) on anammox sludge: CuNPs make a difference

Cited by 109 publications

References 31 publications

Enhanced carbon and nitrogen removal performance of simultaneous anammox and denitrification (SAD) with mannitol addition treating saline wastewater

Enhanced carbon and nitrogen removal performance of simultaneous anammox and denitrification (SAD) with mannitol addition treating saline wastewater

Responses of Anammox Granular Sludge to Long-Term Rare Earth Element Feeding: Lanthanum as a Case

Role of Additives on Anaerobic Digestion, Biomethane Generation, and Stabilization of Process Parameters

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