In Situ Bioremediation of Tailings by Sulfate Reducing Bacteria and Iron Reducing Bacteria: Lab- and Field-Scale Remediation of Sulfidic Mine Tailings

2017 ◽  
Vol 262 ◽  
pp. 651-655 ◽  
Author(s):  
Xing Yu Liu ◽  
Ming Jiang Zhang ◽  
Yi Bin Li ◽  
Zi Ning Wang ◽  
Jian Kang Wen
Keyword(s):  
Heavy Metals ◽  
Mine Tailings ◽  
Sulfate Reducing Bacteria ◽  
Laboratory Scale ◽  
Ion Concentration ◽  
Field Scale ◽  
Iron Reducing Bacteria ◽  
Sulfate Reducing ◽  
Lead Zinc ◽  
Reducing Bacteria

To research the remediation efficiency of sulfate reducing bacteria and iron reducing bacteria on heavy metals, the remediation experiments of laboratory-scale and field-scale were conducted respectively with chalcopyrite tailings and 3 hectares lead-zinc sulfides mine tailings. The ion concentration of exudate was determined using inductively coupled plasma atomic emission spectroscopy, and key bacterial strains were investigated by real-time PCR. The laboratory-scale experiment of chalcopyrite tailings indicated pH of exudate rose to neutral, penetration time of exudate significantly increased, redox potential and dissolved iron notably decreased, and black metal sulfides were formed during remediation by sulfate reducing bacteria and iron reducing bacteria. The field-scale lead-zinc sulfides mine tailings remediation results indicated that the concentration of dissolved heavy metals in exudate decreased, and the growth of both moss and plants were promoted.

Field-scale bioremediation of arsenic-contaminated groundwater using sulfate-reducing bacteria and biogenic pyrite

2018 ◽  
Vol 23 (1) ◽  
pp. 1-21 ◽  
Author(s):  
Ming-Kuo Lee ◽  
James A. Saunders ◽  
Theodore Wilson ◽  
Eric Levitt ◽  
Shahrzad Saffari Ghandehari ◽  
...  
Keyword(s):  
Sulfate Reducing Bacteria ◽  
Contaminated Groundwater ◽  
Field Scale ◽  
Sulfate Reducing ◽  
Reducing Bacteria

scholarly journals Advances in heavy metal removal by sulfate-reducing bacteria

2020 ◽  
Vol 81 (9) ◽  
pp. 1797-1827 ◽  
Author(s):  
Ya-Nan Xu ◽  
Yinguang Chen
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Industrial Development ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Sulfate Reducing Bacteria ◽  
Sulfate Reducing ◽  
Recent Advances ◽  
Conventional Methods ◽  
Reducing Bacteria

Abstract Industrial development has led to generation of large volumes of wastewater containing heavy metals, which need to be removed before the wastewater is released into the environment. Chemical and electrochemical methods are traditionally applied to treat this type of wastewater. These conventional methods have several shortcomings, such as secondary pollution and cost. Bioprocesses are gradually gaining popularity because of their high selectivities, low costs, and reduced environmental pollution. Removal of heavy metals by sulfate-reducing bacteria (SRB) is an economical and effective alternative to conventional methods. The limitations of and advances in SRB activity have not been comprehensively reviewed. In this paper, recent advances from laboratory studies in heavy metal removal by SRB were reported. Firstly, the mechanism of heavy metal removal by SRB is introduced. Then, the factors affecting microbial activity and metal removal efficiency are elucidated and discussed in detail. In addition, recent advances in selection of an electron donor, enhancement of SRB activity, and improvement of SRB tolerance to heavy metals are reviewed. Furthermore, key points for future studies of the SRB process are proposed.

The Disinfection Efficacy of Chlorine on Sulfate-Reducing Bacteria and Iron Bacteria in Water Supply Systems

2013 ◽  
Vol 316-317 ◽  
pp. 657-660
Author(s):  
Bei Meng Qi ◽  
Bei Jia Wang ◽  
Chen Guang Wu ◽  
Yi Xing Yuan
Keyword(s):  
Water Supply ◽  
Sulfate Reducing Bacteria ◽  
Metal Corrosion ◽  
Water Supply Systems ◽  
Supply Networks ◽  
Minimum Requirement ◽  
Iron Reducing Bacteria ◽  
Sulfate Reducing ◽  
Reducing Bacteria ◽  
Supply Systems

Sulfate reducing bacteria (SRB) and iron reducing bacteria (IRB) that widely exist in water supply networks are the main microorganisms leading to metal corrosion in pipelines. Chlorine is widely used in drinking water supply systems. The concentration of chlorine with SRB declined rapidly after 10 mins and reached 0 mg/L finally whereas it decreased more slowly with IRB. If the concentration of chlorine is lower than 0.2mg/L, IRB cannot be sterilized. It indicates that at the end of water pipes where the concentration of chlorine is required to be 0.05mg/L, chlorine is not effective since the concentration is below the minimum requirement of removing IRB

Sign in / Sign up

Export Citation Format

Share Document