Component analysis and heavy metal adsorption ability of extracellular polymeric substances (EPS) from sulfate reducing bacteria

Yue, Zhengbo; Li, Qing; Li, Chuan-chuan; Chen, Tianhu; Wang, Jin

doi:10.1016/j.biortech.2015.07.042

Cited by 181 publications

(43 citation statements)

References 16 publications

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“…At the same time, SRB adhered to the surface of coal gangue, formed a biofilm, and secreted a large amount of extracellular polymeric substances (EPS). The hydroxyl and carboxyl groups contained in the EPS on the surface of SRB combined with the metals in AMD to improve the repair effect [47][48][49]. From the removal percentage, the removal effect of Mn 2+ by Columns 1-4 was lower than that of Fe 2+ .…”

Section: Analysis Of Mn 2+ Removal Effectmentioning

confidence: 99%

“…The average percentages of Mn 2+ removal were 50.04%, 55.90%, 73.81% and 28.36%, respectively. The main removal of Mn is that SRB reduces SO4 2− to S 2− , and S 2− reacts with Mn 2+ to form MnS precipitation [47]. At the same time, SRB adhered to the surface of coal gangue, formed a biofilm, and secreted a large amount of extracellular polymeric substances (EPS).…”

Section: Analysis Of Mn 2+ Removal Effectmentioning

confidence: 99%

“…On 18-24 days, the removal of Mn 2+ by Column 1, 2 and 4 decreased in varying degrees, indicating that the adsorption-desorption of Mn 2+ occurred after the coal gangue reached saturation[53]. In addition, the decrease of removal percentage may be due to the reduction of adsorption sites of effective substances, which prevents H2S from forming HS −[47]. This caused S 2− competition that was not conducive to Mn 2+ .…”

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confidence: 99%

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Study on the Effectiveness of Sulfate-Reducing Bacteria Combined with Coal Gangue in Repairing Acid Mine Drainage Containing Fe and Mn

Dong

Yang

et al. 2020

Energies

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In view of the characteristics of the high content of SO42−, Fe2+ and Mn2+ in acid mine drainage (AMD) and low pH value, based on adsorption and biological methods, coal gangue was combined with sulfate-reducing bacteria (SRB). On this basis, four dynamic columns, including Column 1 (SRB combined with spontaneous combustion gangue from the Gaode coal mine), Column 2 (SRB combined with spontaneous combustion gangue from Haizhou), Column 3 (SRB combined with gangue from Haizhou), and Column 4 (SRB combined with gangue from Shanxi), were constructed. The efficacy of four columns was compared by the inflow of AMD with different pollution load. Results showed that the repair effect of four columns was: Column 3 > Column 2 > Column 1 > Column 4. In the second stage of the experiment, the repair effect of Column 3 was the best. The average effluent pH value and oxidation reduction potential (ORP) value were 9.09 and –262.83 mV, the highest removal percentages of chemical oxygen demand (COD) and SO42− were 84.41% and 72.73%, and the average removal percentages of Fe2+, Mn2+ were 98.70% and 79.97%, respectively. At the end of the experiment, when deionized water was injected, the fixed effect of AMD in the four columns was stable and no secondary release appeared.

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Section: Analysis Of Mn 2+ Removal Effectmentioning

confidence: 99%

Section: Analysis Of Mn 2+ Removal Effectmentioning

confidence: 99%

mentioning

confidence: 99%

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Study on the Effectiveness of Sulfate-Reducing Bacteria Combined with Coal Gangue in Repairing Acid Mine Drainage Containing Fe and Mn

Dong

Yang

et al. 2020

Energies

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“…Researchers have been successful in removing heavy metals from wastewater. For example, Mehrasbi et al [18] in Iran used modified banana peel, Malakootian et al [19] in Iran used dried activated sludge, Malakootian et al [20] in Iran used nanofiltration, Mirzaienia et al [21] in Iran used a microbial desalination cell, Hamidian et al [22] in Iran used chitosan-clay nanocomposites, Yue et al [23] in China used extracellular polymer, Harraz et al [24] in Egypt used Rapid synthesis of titania-silica nanoparticles photocatalyst by a modified sol-gel method, Ray and Chen [25] in Singapore used semiconductor photocatalysis and Alatieh et al [26] in Saudi Arabia used advanced carbon nanotubes. Upadhyay and Srivastava [27] in India survey Application of ozone on remove of heavy metals from wastewater.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of ozonation process with calcium peroxide in removing heavy metals (Pb, Cu, Zn, Ni, Cd) from aqueous solutions

2020

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Heavy metal ions have deadly effects on all forms of life, and through the disposal of industrial wastewater, they enter water resources and, eventually, the food chain. Advanced oxidation processes can remove hazardous and non-degradable organic pollutants in aqueous solutions. Variables examined were initial concentrations of calcium peroxide and heavy metals, contact time, pH, and ozonation rate. Maximum removal rate of heavy metals by ozonation with calcium peroxide under optimal conditions (contact time = 90 min, pH = 3, heavy metal concentration = 25 mg/L, calcium peroxide concentration = 0.025 mg/L and ozonation rate = 1 g/min) in synthetic and real samples were respectively 89.8% and 64.6% for Pb, 92.1% and 73.9% for Cu, 90.4% and 69.7% for Ni, 86.9% and 59.1% for Cd, and 93.4% and 78.8% for Zn. Maximum COD removal rates in synthetic and real samples were 88.1% and 69.9%, respectively. Removal rates of heavy metals and COD under optimal conditions on wastewater from the Isfahan electroplating industry and steel company were determined. The use of the ozonation process with calcium peroxide can be recommended as a good, coefficient method for the removal of heavy metals in wastewater treatment.

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“…Para isso, vários materiais adsorventes podem ser utilizados para eliminação ou redução da concentração de íons de metais pesados, destacando-se o carbono ativado, sílica gel, argilas minerais, resinas, zeólitas e substâncias poliméricas. Porém, muitos dos adsorventes utilizados atualmente apresentam elevados custos ou baixa seletividade, sendo importantes o desenvolvimento de novos materiais que apresentem uma maior eficiência na adsorção e com um menor custo de obtenção (SIYAL et al, 2018;BURAKOV et al, 2018;GORE et al, 2016;LI et al, 2016;POLOWCZYK et al, 2016;MALEKIA et al, 2015;XIAO et al, 2015;YUE et al, 2015;).…”

Section: Introductionunclassified

Avaliação da adsorção de cromo em carboximeticelulose obtida a partir de palha de milho modificada e ativada com diferentes líquidos iônicos

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A minha orientadora, Prof.ª Dra. Andreia de Araújo Morandim Giannetti, por todo o apoio, dedicação empenho e tempo sem os quais não seria possível a finalização deste trabalho, agradeço também pelos conselhos, por acreditar na minha capacidade e por empegar e compartilhar seu conhecimento e experiências que auxiliaram na concretização de mais um passo na minha carreira acadêmica. Aos meus pais que sempre apoiaram minhas decisões sem nem ao menos questionar, me dando força e aconselhamentos nos momentos de desânimo e dificuldades. A Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) pela bolsa concedida e pelo financiamento do presente trabalho (Processo nº 2017/05485-3).

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Component analysis and heavy metal adsorption ability of extracellular polymeric substances (EPS) from sulfate reducing bacteria

Cited by 181 publications

References 16 publications

Study on the Effectiveness of Sulfate-Reducing Bacteria Combined with Coal Gangue in Repairing Acid Mine Drainage Containing Fe and Mn

Study on the Effectiveness of Sulfate-Reducing Bacteria Combined with Coal Gangue in Repairing Acid Mine Drainage Containing Fe and Mn

Efficiency of ozonation process with calcium peroxide in removing heavy metals (Pb, Cu, Zn, Ni, Cd) from aqueous solutions

Avaliação da adsorção de cromo em carboximeticelulose obtida a partir de palha de milho modificada e ativada com diferentes líquidos iônicos

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