Performance of three bench-scale diffusive exchange systems during treatment of acid mine drainage with high copper concentration

2017 ◽  
Vol 64 ◽  
pp. 21-30 ◽  
Author(s):  
Norma Pérez ◽  
Alex Schwarz ◽  
Pamela Sanhueza ◽  
Gustavo Chaparro
Keyword(s):  
Acid Mine Drainage ◽  
Copper Concentration ◽  
Mine Drainage ◽  
Bench Scale ◽  
Acid Mine ◽  
High Copper ◽  
Diffusive Exchange

Bench-scale microbial remediation of the model acid mine drainage: Effects of nutrients and microbes on the source bioremediation

2018 ◽  
Vol 128 ◽  
pp. 117-121 ◽  
Author(s):  
Qiankun Jing ◽  
Mingjiang Zhang ◽  
Xingyu Liu ◽  
Yibin Li ◽  
Zining Wang ◽  
...  
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Bench Scale ◽  
Acid Mine ◽  
Microbial Remediation

scholarly journals Evaluation of fine organic mixtures for treatment of acid mine drainage in sulfidogenic reactors

2018 ◽  
Vol 78 (8) ◽  
pp. 1715-1725 ◽  
Author(s):  
N. Pérez ◽  
A. Schwarz ◽  
J. de Bruijn
Keyword(s):  
Acid Mine Drainage ◽  
Microcrystalline Cellulose ◽  
Mine Drainage ◽  
Cellulose Fibers ◽  
Organic Substrates ◽  
Organic Mixtures ◽  
Sulfate Reducing ◽  
Acid Mine ◽  
Fine Organic ◽  
Diffusive Exchange

Abstract The performance of passive biochemical reactors in acid mine drainage (AMD) treatment could be enhanced by using fine organic substrates in new reactor designs, such as diffusive exchange reactors. This work evaluated the effect of fine cellulosic components in organic mixtures and of enrichment with inoculum, on sulfate and metals removal in discontinuous cultures for three types of synthetic AMD. The cellulosic substrates evaluated were sawdust, microcrystalline cellulose, and forestry cellulose fibers, supplemented with cow manure and leaf compost. Using microcrystalline cellulose and forestry cellulose fibers with the less concentrated AMD, high sulfate reduction rates (73 mg/L-d and 58.2 mg/L-d, respectively) were achieved. Correspondingly, iron concentrations were reduced by 69% and 86.6%. Based on their higher sulfate reducing capacity, cellulose fibers obtained as fiber boards from a local kraft pulp mill were selected for treating a synthetic AMD with a high copper concentration (273 mg/L) and pH 4.94. In batch culture, low sulfate reducing activity (13.10 mg/L-d) was only observed at the highest substrate/AMD ratio (0.5:10) tested. Results show that the use of forestry cellulose fibers in reactive mixtures supplemented with inoculum could be an alternative for optimization of diffusive exchange reactors for AMD treatment.

Treatment of acid mine drainage by sulfate reducing bacteria with iron in bench scale runs

2013 ◽  
Vol 128 ◽  
pp. 818-822 ◽  
Author(s):  
He Bai ◽  
Yong Kang ◽  
Hongen Quan ◽  
Yang Han ◽  
Jiao Sun ◽  
...  
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Sulfate Reducing Bacteria ◽  
Bench Scale ◽  
Sulfate Reducing ◽  
Acid Mine ◽  
Reducing Bacteria

scholarly journals POTENTIAL OF AUTOCHTHONOUS SULFATE-REDUCING MICROBIAL COMMUNITIES FOR TREATING ACID MINE DRAINAGE IN A BENCH-SCALE SULFIDOGENIC REACTOR

2019 ◽  
Vol 36 (2) ◽  
pp. 733-751 ◽  
Author(s):  
Alessandra Giordani ◽  
Elize A. Hayashi ◽  
Renata P. Rodriguez ◽  
Leonardo H. S. Damasceno ◽  
Heliana Azevedo ◽  
...  
Keyword(s):  
Acid Mine Drainage ◽  
Microbial Communities ◽  
Mine Drainage ◽  
Bench Scale ◽  
Sulfate Reducing ◽  
Acid Mine
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