Improvement of biological sulfate reduction by supplementation of nitrogen rich extract prepared from organic marine wastes

Dev, Subhabrata; Roy, Shantonu; Das, Debabrata; Bhattacharya, Jayanta

doi:10.1016/j.ibiod.2015.06.018

Cited by 13 publications

(5 citation statements)

References 40 publications

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“…The MSRB medium supported better growth of SRB and sulfate reduction than the other growth media containing commercial nitrogen sources such as NH 4 Cl, yeast extract and tryptone (Dev and Bhattacharya 2014). The work ushers in a newly developing field of using marine and other waste as the competitive substrate to encourage resilient microbial communities and their growth (Dev et al 2015).…”

Section: Marine Waste Extractmentioning

confidence: 95%

“…The extract contained 13.95 g/L nitrogen and 0.1 C/N ratio. The authors conducted batch experiments and reported that, after 10 days incubation, MWE supplemented SRB growth medium (MSRB) could support the growth of 96 % SRB population and 97 % sulfate removal at a rate of 12.41 mg/L h. The multiple-parameter optimization study reported almost complete sulfate removal due to mutual interaction of pH, sulfate and MWE concentration at the optimized values such as 7.5, 1500 mg/L and 20 % v/v, respectively (Dev et al 2015). The MSRB medium supported better growth of SRB and sulfate reduction than the other growth media containing commercial nitrogen sources such as NH 4 Cl, yeast extract and tryptone (Dev and Bhattacharya 2014).…”

Section: Marine Waste Extractmentioning

confidence: 99%

“…Excessive nitrogen content such as 1000-2000 mg L -1 created a toxic effect on SRB possibly due to the generation of high ammonia concentration during substrate degradation (Dev et al 2015). It was reported that the high nitrogen content in the form of ammonia ([200 mg L -1 ) was highly toxic to SRB.…”

Section: Molassesmentioning

confidence: 99%

“…In some recent studies, MWE has been used as the potential nitrogen source for SRB (Dev and Bhatacharya 2014;Dev et al 2015). The authors reported that MWE was able to contribute strong and sustained growth of SRB, and sulfate reduction even better than the commercial nitrogen sources.…”

Section: Future Perspectivementioning

confidence: 99%

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Suitability of different growth substrates as source of nitrogen for sulfate reducing bacteria

et al. 2015

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Sulfate reducing bacteria (SRB) mediated treatment of acid mine drainage is considered as a globally accepted technology. However, inadequate information on the role of nitrogen source in the augmentation of SRB significantly affects the overall treatment process. Sustenance of SRB depends on suitable nitrogen source which is considered as an important nutrient. This review focuses on the different nitrogen rich growth substrates for their effectiveness to support SRB growth and sulfate reduction in passive bioreactors. Compounds like NH4Cl, NH4HCO3, NO3 (-), aniline, tri-nitrotoluene, cornsteep liquor, peptone, urea, and chitin are reported to have served as nitrogen source for SRB. In association with fermentative bacteria, SRB can metabolize these complex compounds to NH4 (+), amines, and amino acids. After incorporation into cells, these compounds take part in the biosynthesis of nucleic acids, amino acids and enzyme co-factor. This work describes the status of current and the probable directions of the future research.

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Section: Marine Waste Extractmentioning

confidence: 95%

Section: Marine Waste Extractmentioning

confidence: 99%

Section: Molassesmentioning

confidence: 99%

Section: Future Perspectivementioning

confidence: 99%

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Suitability of different growth substrates as source of nitrogen for sulfate reducing bacteria

et al. 2015

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“…However, the main focus of this study was primarily on the reduction of sulphate in AMD. Although previous studies have used response surface methodology to investigate how different factors affect biological sulphate reduction [25,31], as far as the authors are aware, there is no published work on how pH, HRT, and temperature affects biological sulphate reduction using response surface methodology. This study forms part of the ongoing BSR work at Mintek, which has a pilot plant running at a coal mine in Mpumalanga, South Africa.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effect of pH, Temperature, and Hydraulic Retention Time on Biological Sulphate Reduction Using Response Surface Methodology

Mukwevho

Maharajh

Chirwa

2020

Water

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Biological sulphate reduction (BSR) has been identified as a promising alternative for treating acid mine drainage. In this study, the effect of pH, temperature, and hydraulic retention time (HRT) on BSR was investigated. The Box–Behnken design was used to matrix independent variables, namely pH (4–6), temperature (10–30 °C), and HRT (2–7 days) with the sulphate reduction efficiency and sulphate reduction rate as response variables. Experiments were conducted in packed bed reactors operating in a downflow mode. Response surface methodology was used to statistically analyse the data and to develop statistical models that can be used to fully understand the individual effects and the interactions between the independent variables. The analysis of variance results showed that the data fitted the quadratic models well as confirmed by a non-significant lack of fit. The temperature and HRT effect were significant (p < 0.0001), and these two variables had a strong interaction. However, the influence of pH was insignificant (p > 0.05).

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Anaerobic Naphthalene Biotransformation Coupled to Sulfate Reduction

Yadu,

Sahariah,

Anandkumar

2024

CLEAN Soil Air Water

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Polycyclic aromatic hydrocarbons (PAHs) are a diverse group of hazardous and toxic pollutants widely distributed in the environment. The anaerobic degradation is a promising technique for the removal of recalcitrant aromatic hydrocarbons from waste stream. In this study, anaerobic degradation of naphthalene (NAP) was investigated by using cow dung‐enriched mixed microbial consortia with varying NAP and sulfate concentrations. The maximum removal of NAP (99.8%) and sulfate (68%) was achieved while varying the sulfate concentration from 50 to 500 mg/L in 500 mg/L NAP influent concentration. 41.9 mg/L of sulfate was generated during this study. Similarly, when NAP concentration was varied from 100 to 1000 mg/L, 84% of chemical oxygen demand (COD), 74% of sulfate, and 92% of NAP were observed at constant sulfate concentration of 250 mg/L. This result reveals that sulfate concentration had no significant effect on NAP degradation. NAP mineralization was evidenced by the formation of sulfide and production of metabolites with decreasing NAP concentration. Gas chromatography–mass spectrometry (GC–MS) confirmed the formation of metabolites like naphthol and 1,2‐dihydroxynaphthalene due to monooxygenation at C‐1 as part of the metabolic pathway. The rate of NAP, COD, and sulfate removal followed the first‐order kinetics with high regression coefficients while varying the influent NAP concentrations.

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Improvement of biological sulfate reduction by supplementation of nitrogen rich extract prepared from organic marine wastes

Cited by 13 publications

References 40 publications

Suitability of different growth substrates as source of nitrogen for sulfate reducing bacteria

Suitability of different growth substrates as source of nitrogen for sulfate reducing bacteria

Evaluating the Effect of pH, Temperature, and Hydraulic Retention Time on Biological Sulphate Reduction Using Response Surface Methodology

Anaerobic Naphthalene Biotransformation Coupled to Sulfate Reduction

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