Heavy metal removal from multicomponent system by sulfate reducing bacteria: Mechanism and cell surface characterization

Kiran, M. Gopi; Pakshirajan, Kannan; Das, Gopal

doi:10.1016/j.jhazmat.2015.12.042

Cited by 176 publications

(63 citation statements)

References 25 publications

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“…The final volume was made up to 100 mL by adding individual heavy metal stock solution to achieve an initial concentration of 10 mg L −1 . The initial concentration used in this study was chosen based on a literature study by Kiran et al (2016) and Pavasant et al (2006) for heavy metals removal using microalgae and anaerobic sludge, respectively. Ten percentage of DCM was then added to dissolve the PAH.…”

Section: Methodsmentioning

confidence: 99%

“…Release of different pollutants into the environment has increased noticeably, thereby diminishing the environment quality to frightening levels (Kiran et al 2016; Roy et al 2015). These pollutants are known to affect both the living and non-living assets of the biosphere via numerous routes (Ye et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Some PAHs are known to be a human skin photosensitizer, mild allergen, whereas some other PAHs are reported to cause haemolytic anaemia and nephrotoxicity (Bücker et al 1979). Heavy metals are widely used in metal finishing, leather tanning, electroplating, nuclear power plant, and textile industries, whereas PAHs are ubiquitously found at wood preservation plants, industrial sites associated with petroleum and coal tar manufacturing, gas plants, runoff from asphalt pavement, and combustion processes (Kiran et al 2016; Hadibarata and Kristanti 2012; Yap et al 2011; Mahanty et al 2008; Samanta et al 2002). Therefore, industrial effluent containing these contaminants when released from the main stream affects each other’s biodeterioration and biotransformation by microorganism.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous heavy metal removal and anthracene biodegradation by the oleaginous bacteria Rhodococcus opacus

et al. 2017

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This study investigated simultaneous heavy metals removal and anthracene biodegradation by Rhodococcus opacus at different initial anthracene concentrations in the range 50–200 mg L−1. The heavy metals tested were Fe(III), Cu(II), Zn(II), Cd(II), Ni(II), and Pb(II) at 10 mg L−1 initial concentration: The organism was found to be well capable of removing the heavy metals along with high anthracene biodegradation efficiency. However, anthracene biodegradation rate by the organism was reduced due to these heavy metals. In addition, the heavy metals effect on R. opacus biomass growth followed the order: Cd > Ni > Pb > Cu > Zn > Fe. The total time to anthracene biodegradation increased from 144 to 216 h in the presence of Fe, Zn, Cu, or Pb, and it was up to 240 h in the presence of Cd or Ni. Compared with 70.2% (w/w) lipid accumulation by the bacterium in the absence of these heavy metals, a significant decline in the same was observed in the presence of the different heavy metals. These values were 41.2, 44.1, 52.1, 54.1, 58.6, and 63.1% (w/w) for Cd, Ni, Pb, Cu, Zn, and Fe, respectively. Field emission scanning electron microscopy integrated with energy dispersive X-ray spectroscopy and transmission electron microscopy of the biomass grown in the presence and absence of these heavy metals further confirmed a change in morphology of the bacterium due to the heavy metals. Fourier transmission infrared spectroscopy spectra of the biomass obtained during its growth in the presence and absence of the heavy metals confirmed the involvement of N–H, C–H bend, –CH2–(C=O), C–N stretch, C–H and O–H bending, and –C–Cl groups on the biomass for heavy metal uptake by the bacterium.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simultaneous heavy metal removal and anthracene biodegradation by the oleaginous bacteria Rhodococcus opacus

et al. 2017

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“…Для видалення металів із води існують різні методи. Біологічні методи придатніші для очищення середовища з низькими концентраціями металів (Frank & Lushnikov, 2006;Yavorska et al, 2008;Kuznetsov et al, 2015;Kiran et al, 2017). Біоакумуляція залежить від метаболічної активності клітин, вмісту металу в середовищі та його фізико-хімічної характеристики.…”

Section: вступunclassified

“…Сульфідогенні бактерії у нішах із низьким окисно-відновним потенціалом, збагачених органічними сполуками, здійснюють відновну трансформацію окиснених сполук сульфуру з утворенням значних кількостей гідроген сульфіду (Richter et al, 2012). Гідроген сульфід, утворений бактеріями, взаємодіє з іонами важких металів (Fe (II), Cu (II), Cd (II), Ni (II), Pb (II), Zn (II)), осаджуючи їх у формі сульфідів, або є сильним відновлюючим агентом, який сприяє редукції металів до більш відновлених форм (White et al, 2000;Frank & Lushnikov, 2006;Wang et al, 2008;Kozlova et al, 2008;Gudz et al, 2011;Vasyliv et al, 2011;Moroz, 2013;Kiran et al, 2017). Осадження сульфідів може здійснюватися сульфідогенною мікробіотою у відстійниках, лагунах, ставках, анаеробних реакторах і відбуватися поза клітинами мікроорганізмів, у клітинах або на поверхні клітин за рН 3-9 (Kuznetsov et al, 2015).…”

Section: вступunclassified

Sulfidogenic activity of sulfate and sulfur reducing bacteria under the influence of metal compounds

et al. 2018

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Moroz, O. M., Hnatush, S. O., Tarabas, O. V., Bohoslavets, C. I., Yavorska, G. V., & Borsukevych, B. M. (2018). Sulfidogenic activity of sulfate and sulfur reducing bacteria under the influence of metal compounds. Biosystems Diversity, 26(1), 3-10.Due to their high content in natural environments, heavy metals exhibit toxic effects on living organisms, which leads to a decrease in the biological diversity and productivity of ecosystems. In niches with low oxidation reducing potential, sulfate and sulfur reducing bacteria carry out the reducing transformation of oxidized sulfur compounds with the formation of significant amounts of hydrogen sulfide. H 2 S produced by bacteria interacts with metal ions, precipitating them in the form of sulfides. The aim of this work was to investigate the influence of lead, cuprum (II), iron (II) and manganese (II) salts on the production of hydrogen sulfide by bacteria of the Desulfovibrio and Desulfuromonas genera, isolated from Yavorivske Lake, and to evaluate the efficiency of their use for purifying media, enriched with organic compounds, from hydrogen sulfide and heavy metals. The content of heavy metal ions in the water of Yavorivske Lake was determined by the spectrophotometric method. The bacteria were grown for 10 days at 30 °C in the Kravtsov-Sorokin medium under anaerobic conditions. To study the influence of metal ions on bacteria growth and their H 2 S production, cells were incubated with metal salts (0.5-4.0 mM), washed and grown in media with SO 4 2or S 0 . To determine the level of metal ions binding by H 2 S, produced by bacteria, cells were grown in media with metal compounds (0.5-4.0 mM), SO 4 2or S 0 . Biomass was determined by turbidimetric method. In the cultural liquid the content of H 2 S was determined quantitatively by spectrophotometric method, and qualitatively by the presence of metal cations. The content of metal sulfides in the growth medium was determined by weight method. Sulfate and sulfur-reducing bacteria were resistant to 2.0 mM Pb(NO 3 ) 2 , 2.5 mM CuCl 2 , 2.5 mM FeCl 2 × 4H 2 O and 2.0 mM MnCl 2 × 4H 2 O, therefore they are promising for the development of biotechnologies for the purification of water resources contaminated by sulfur and metal compounds. When present in a medium with sulfates or sulfur of 1.0-1.5 mM lead, cuprum (II), iron (II) or manganese (II) ions, they almost completely bind with the H 2 S produced by bacteria in the form of insoluble sulfides, which confirms the negative results of qualitative reactions to their presence in the cultural liquid.

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Optimization of a modular continuous flow bioreactor system for acid mine drainage treatment using Plackett–Burman design

Cui

Shang

2020

Asia-Pacific J Chem Eng

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A novel modular continuous flow bioreactor system was designed to enhance the tolerance of bacteria to high concentration of heavy metal. This study evaluated the combined effect of high and low concentration levels of zinc, ferrous iron, copper, sulfate, and carbon source on the heavy metals and sulfate removal efficiencies. Statistically valid Plackett–Burman design (PBD) of experiments was employed to carry out this study. A maximum removal for each of zinc, copper, iron, and sulfate was 99.08%, 99.13%, 94.83%, and 58.89%, respectively. Analysis of variance (ANOVA) of zinc, copper, and sulfate reduction revealed that the effect due to zinc was highly significant (p < 0.05). To establish the roles of iron‐oxidizing bacteria (IOB) and sulfate reducing bacteria (SRB) in their respective bioreactors, the characteristics of microbial communities in attached and suspended growth biomass in the bioreactors were analyzed by high‐throughput sequencing during the steady operational process. Qualitative energy dispersive spectroscopy (EDS) analysis of the precipitates from sulfide precipitation was performed. The results revealed that the precipitates as sulfide zinc were confirmed by the EDS spectrum with strong peaks of zinc and sulfur.

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Heavy metal removal from multicomponent system by sulfate reducing bacteria: Mechanism and cell surface characterization

Cited by 176 publications

References 25 publications

Simultaneous heavy metal removal and anthracene biodegradation by the oleaginous bacteria Rhodococcus opacus

Simultaneous heavy metal removal and anthracene biodegradation by the oleaginous bacteria Rhodococcus opacus

Sulfidogenic activity of sulfate and sulfur reducing bacteria under the influence of metal compounds

Optimization of a modular continuous flow bioreactor system for acid mine drainage treatment using Plackett–Burman design

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