Simultaneous biological removal of nitrogen–sulfur–carbon: Recent advances and challenges

Show, Kuan‐Yeow; Lee, Dong Hoon; Pan, Xiangliang

doi:10.1016/j.biotechadv.2012.12.006

Cited by 92 publications

(38 citation statements)

References 71 publications

(128 reference statements)

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“…MPA that govern the sulfate and nitrate reduction in micro-aerobic conditions were 14 estimated by fitting the simulation results to the experimental data collected in batch test at ROS=1.16. Fig.…”

Section: Model Calibration and Validation For Culturementioning

confidence: 99%

“…The biological removal of carbon, nitrogen and sulfur that are simultaneously present in waste streams, incorporates several groups of microorganisms, including sulfate-reducing bacteria (SRB), sulfide-oxidizing bacteria (SOB), nitrate-reducing sulfide-oxidizing bacteria (NR-SOB), and heterotrophic nitrate reducing bacteria (NRB) [11][12][13][14]. In an anaerobic/anoxic habitat, facultative bacteria (FB) and methane producing archaea (MPA) can co-exist with the other strains for carbon degradation.…”

Section: Introductionmentioning

confidence: 99%

“…Although simultaneous biological C-N-S removal has been widely studied [14,15], few efforts have been devoted to modeling the integrated process, especially the synergistic and competitive relationships among microorganisms [48,51,[53][54]. The Activated Sludge Models Nos.…”

Section: Introductionmentioning

confidence: 99%

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Mathematical modeling of simultaneous carbon-nitrogen-sulfur removal from industrial wastewater

Chen

Wang

et al. 2017

Journal of Hazardous Materials

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(Nan-Qi Ren) 2 Highlights:1. Simultaneous C-N-S removal from industrial wastewater was mathematically modeled 2. Interactions between SRB, NRB, SOB, FB and MPA were depicted in the model 3. Kinetic parameters for competitive coefficient between SRB and NRB were best estimated 4. The developed mode was the first simulation tool for complicated C-N-S dynamics 5. The model was versatile and feasible to predict relevant processes (e.g., SR-SO, DSR)ABSTRACT A mathematical model of carbon, nitrogen and sulfur removal (C-N-S) from industrial wastewater was constructed considering the interactions of sulfate-reducing bacteria (SRB), sulfide-oxidizing bacteria (SOB), nitrate-reducing bacteria (NRB), facultative bacteria (FB), and methane producing archaea (MPA). For the kinetic network, the bioconversion of C-N by heterotrophic denitrifiers (NO3 -→NO2 -→N2), and that of C-S by SRB (SO4 2-→S 2-) and SOB (S 2-→S 0 ) was proposed and calibrated based on batch experimental data. The model closely predicted the profiles of nitrate, nitrite, sulfate, sulfide, lactate, acetate, methane and oxygen under both anaerobic and micro-aerobic conditions. The best-fit kinetic parameters had small 95% confidence regions with mean values approximately at the center. The model was further validated using independent data sets generated under different operating conditions. This work was the first successful mathematical modeling of simultaneous C-N-S removal from industrial wastewater and more importantly, the proposed model was proven feasible to simulate other relevant processes, such as sulfate-reducing, sulfide-oxidizing process (SR-SO) and denitrifying sulfide removal (DSR) process. The model developed is expected to enhance our ability to predict the treatment of carbon-nitrogen-sulfur contaminated industrial wastewater.

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Section: Model Calibration and Validation For Culturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mathematical modeling of simultaneous carbon-nitrogen-sulfur removal from industrial wastewater

Chen

Wang

et al. 2017

Journal of Hazardous Materials

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“…En bilinen denitrifikasyon mikroorganizmaları: Achromobacter, Alcaligenes, Bacillus, Chrombacter, Corynebacterium, Halobacterium, Methanomonas, Moraxella, Paracoccus, Propionibacterium, Pseudomonas, Spirillum, Thiobacillus, ve Xanthomonas'dır . Organik karbon kaynağına göre denitrifikasyon, ototrofik ve heterotrofik denitrifikasyon olarak iki grupta incelebilir [42,43]. İki grup arasındaki temel farklılık elektron alıcılarının farklı kaynaklar olmasıdır [44].…”

Section: Biyolojik Denitrifikasyonunclassified

Nitrat İndirgenmesinde Nano Ölçekli Sıfır Değerlikli Demir (nZVI) Kullanımı

Türk¹,

Hanay²

2017

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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ÖzetNitrat yeraltı ve yüzeysel sulardaki kirletici unsurlardan biridir ve bu nedenle nitrat indirgenmesinde şimdiye kadar birçok farklı proses araştırılmıştır. Biyotik ve abiyotik olarak gerçekleştirilen nitrat indirgenmesinde çok çeşitli alternatifler mevcuttur. Bir diğer yönden nano ölçekli sıfır değerlikli demir (nZVI) atıksulardaki birçok kirleticinin giderimi için kullanılmaktadır. nZVI elektron verici özelliğinden dolayı daha çok kirleticilerin indirgenme çalışmalarında yer almıştır. Literatürde yer alan çalışmalar biyotik ve abiyotik indirgenmenin arka arkaya gerçekleştiği nZVI ile ototrofik denitrifikasyonun, bakteri-nZVI iş birliğinden dolayı diğer yöntemlere göre daha avantajlı olduğunu göstermektedir. Bu çalışmada da nitrat indirgenmesinde nZVI kullanımının rolü, avantajları ve indirgenme mekanizması, yapılan araştırmalardan derlenerek sunulmuştur.Anahtar kelimeler: Nano Ölçekli Sıfır Değerlikli Demir, Nitrat İndirgenmesi, Biyotik Denitrifikasyon, Abiyotik Denitrifikasyon. Use of Nanoscale Zero Valent Iron (nZVI) in Nitrate ReductionAbstract Nitrate is one of the pollutants in ground and surface waters and many different processes have been investigated up to now for nitrate reduction. There are various alternatives in biotic and abiotic nitrate reductions. On the other hand, nanoscale zero valent iron (nZVI) is used for the removal of many pollutants in wastewater. nZVI is nature electron donor, this leads its usage in many pollutants reduction. The researches in the literature show that autotrophic denitrification with nZVI, which is performed successively of biotic and abiotic reduction, is more advantageous than other methods due to the bacteria nZVI cooperation. In this study, the role of nZVI, the advantages and the mechanism of reduction in the reduction of nitrate, are presented by reviewing previous studies.

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“…It also results in childhood diabetes and formation of carcinogenic compounds, e.g. nitrosamines (Show et al, 2013). Sulfide has unpleasant odor and toxicity because it reacts with the iron from cytochromes and then inhibits the respiration (Visser et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Bioaugmentation of activated sludge with elemental sulfur producing strain Thiopseudomonas denitrificans X2 against nitrate shock load

Tan

Huang

Chen

et al. 2016

Bioresource Technology

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h i g h l i g h t sThe type species of novel genus Thiopseudomonas was inoculated for bioaugmentation. The C, N and S contaminants were simultaneously removed in UASB reactor. The generation rate of S 0 was significantly enhanced by bioaugmentation. a r t i c l e i n f o The sulfide and nitrogen compounds in wastewaters are toxic and cause a serious environmental problem. Thiopseudomonas denitrificans X2, which is the type species of a novel genus Thiopseudomonas was used for bioaugmentation. It oxidized sulfide and acetate with nitrate, and generated elemental sulfur that could be recovered as resource. The generation rate of elemental sulfur was enhanced significantly by the bioaugmentation under the condition of excessive nitrate feeding. The inoculums survived and worked actively in the activated sludge system as the dominant population. Thiopseudomonas denitrificans X2 could be applied to wastewater treatment and resource recovery simultaneously.

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Simultaneous biological removal of nitrogen–sulfur–carbon: Recent advances and challenges

Cited by 92 publications

References 71 publications

Mathematical modeling of simultaneous carbon-nitrogen-sulfur removal from industrial wastewater

Mathematical modeling of simultaneous carbon-nitrogen-sulfur removal from industrial wastewater

Nitrat İndirgenmesinde Nano Ölçekli Sıfır Değerlikli Demir (nZVI) Kullanımı

Bioaugmentation of activated sludge with elemental sulfur producing strain Thiopseudomonas denitrificans X2 against nitrate shock load

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