Mixed bacterial consortium as an emerging tool to remove hazardous trace metals from coal

Singh, Prakash; Singh, Asha; Kumar, Aniruddha; Singh, Mahendra

doi:10.1016/j.fuel.2012.06.039

Cited by 47 publications

(25 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand the elements like Ni (r 2 = -0.861), Zn (r 2 = -0.896), Cr (r 2 = -0.941) and Cu (r 2 = -0.455) have a strong negative correlation with ash removal percentage in the Rajmahal coals indicating that the enrichment of these elements could have hampered the process of demineralization of these coals with this bacteria. Similar studies on the removal of major, minor and trace elements of the Indonesian coals have been successfully achieved by the authors with the help of bacterial consortium (Singh et al, 2011;2012a).…”

Section: Correlation Of Ash Removal Percentage With Various Componentssupporting

confidence: 58%

“…To avoid such problems some biological tools have also been worked out. Significant contributions have been made by some geologists (Singh et al, 2011;2012a;2012b;Singh et al, 2013;Chan et al, 2003;Shi and Fang, 2005;Sharma and Wadhava, 1997;and Kilbane, 2006). Olson and Brinckman (1986) and Shrivastava et al (1989) have attempted the removal of inorganic matter from coal through bioleaching.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Study on Demineralization of Coal with Pseudomonas Mendocina Strain B6–1 Bacteria to Obtain Clean Fuel

Singh

Kumar

et al. 2014

Energy Exploration & Exploitation

Self Cite

View full text Add to dashboard Cite

We present the results of the investigations carried out on the demineralization of coal of the Rajmahal Gondwana basin of India using Pseudomonas mendocina strain B6-1. Petrographically these coals are characterized by high concentration of inertinite macerals with subordinate amount of vitrinite and liptinite macerals. The mineral matter content occurs in high concentration which gives a high ash yield. This coal contains relatively high content of major, minor and trace elements when compared with the Clarke values in coal.After the bacterial treatment a considerable reduction in the elemental content of oxygen, hydrogen and sulphur was seen. Reduction in the ash content (>5%) was achieved and variable degrees of removal of the various major, minor and trace element concentration was also noticed. Nearly 59% removal of Mn, 53% of Na, 13% of Fe was achieved among the major/minor elements while nearly 54% of As, 41% of Cd, 39% of Cu, 34% of Ni, 32% of Zn, 13% of Cr, 43% of Co and 66% of Pb could be removed. Arsenic, Fe and Ca have a strong positive correlation with the ash removal percentage indicating that the samples having increased concentration of these elements are prone to demineralization with Pseudomonas mendocina strain B6-1. Whereas the elements like Ni, Zn, Cr and Cu maintain a strong negative correlation with the ash removal percentage indicating that their enrichment could have hampered the process of demineralization.

show abstract

Section: Correlation Of Ash Removal Percentage With Various Componentssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Experimental Study on Demineralization of Coal with Pseudomonas Mendocina Strain B6–1 Bacteria to Obtain Clean Fuel

Singh

Kumar

et al. 2014

Energy Exploration & Exploitation

Self Cite

View full text Add to dashboard Cite

show abstract

“…Observed bioaccumulation abilities of isolated consortium are not very high and several authors reported much higher accumulation rates. Singh et al (2012) reported that microbial consortium isolated from coal could efficiently remove over 80 % of metals, such as Ni, Zn, Cd, Cu and Cr, while the removal of Pb was nearly 45 %. According to Carpio et al (2016) microbial consortium isolated from the contaminated water and sediment could remove more than 50 % of zinc from medium.…”

Section: Resultsmentioning

confidence: 99%

“…The available physicochemical methods of metal removal are not only expensive but also produce secondary sludge and are, therefore, not ecofriendly. Hence, the need to remove hazardous trace metals with eco-friendly method is acute (Singh et al 2012). The opposite of these physicochemical strategies is bioremediation.…”

Section: Introductionmentioning

confidence: 99%

Zinc bioaccumulation by microbial consortium isolated from nickel smelter sludge disposal site

Kvasnová¹,

Hamarová²,

Pristaš³

2017

Nova Biotechnologica Et Chimica

View full text Add to dashboard Cite

Heavy metal pollution is one of the most important environmental issues of today. Bioremediation by microorganisms is one of technologies extensively used for pollution treatment. In this study, we investigated the heavy metal resistance and zinc bioaccumulation by microbial consortium isolated from nickel sludge disposal site near Sereď (Slovakia). The composition of consortium was analyzed based on MALDI-TOF MS of cultivable bacteria and we have shown that the consortium was dominated by bacteria of genus Arthrobacter. While consortium showed very good growth in the zinc presence, it was able to remove only 15 % of zinc from liquid media. Selected members of consortia have shown lower growth rates in the zinc presence but selected isolates have shown much higher bioaccumulation abilities compared to whole consortium (up to 90 % of zinc removal for NH1 strain). Bioremediation is frequently accelerated through injection of native microbiota into a contaminated area. Based on data obtained in this study, we can conclude that careful selection of native microbiota could lead to the identification of bacteria with increased bioaccumulation abilities.

show abstract

“…These beads have been used for the removal of major, minor and trace elements/metals from coal samples. The detailed process has been discussed by Singh et al (2011;2012).…”

Section: Methodsmentioning

confidence: 99%

Petrographic Considerations in Demineralization of Coal with Bacteria: A New Dimension in Understanding the Clean Coal Technology

Singh

Kumar

et al. 2014

Energy Exploration & Exploitation

Self Cite

View full text Add to dashboard Cite

The present study reveals that there is close relation between the petrographic composition of coal and removal of major, minor and trace elements/metals with bacteria. While increase in total huminite concentration has favoured the removal of Cr, Ni, Pb and Mg, there is good removal of Cd and Cu with increase in liptinite content. Inertinite is found to be favourable for the removal of Cd, Fe and K. It is therefore important to take into consideration the petrographic composition of coal when trying for the beneficiation of coal with bacteria. This will be helpful in designing suitable strategy for the removal of environmentally sensitive elements/metals with the help of bacteria and to obtain clean fuel from coal.

show abstract

Mixed bacterial consortium as an emerging tool to remove hazardous trace metals from coal

Cited by 47 publications

References 18 publications

Experimental Study on Demineralization of Coal with Pseudomonas Mendocina Strain B6–1 Bacteria to Obtain Clean Fuel

Experimental Study on Demineralization of Coal with Pseudomonas Mendocina Strain B6–1 Bacteria to Obtain Clean Fuel

Zinc bioaccumulation by microbial consortium isolated from nickel smelter sludge disposal site

Petrographic Considerations in Demineralization of Coal with Bacteria: A New Dimension in Understanding the Clean Coal Technology

Contact Info

Product

Resources

About