Biologic removal of sulfate from acid mine drainage in an anaerobic sequencing batch reactor: Temperature and inoculum origin effects on the startup operation

2020 ◽  
Vol 36 ◽  
pp. 101349 ◽  
Author(s):  
Josiel Martins Costa ◽  
Lívia Martins Verola ◽  
Juliana Kawanishi Braga ◽  
Renata Piacentini Rodriguez ◽  
Giselle Patrícia Sancinetti
Keyword(s):  
Acid Mine Drainage ◽  
Sequencing Batch Reactor ◽  
Mine Drainage ◽  
Batch Reactor ◽  
Anaerobic Sequencing Batch Reactor ◽  
Acid Mine ◽  
Reactor Temperature ◽  
Origin Effects

Fe(II) oxidation during acid mine drainage neutralization in a pilot-scale sequencing batch reactor

2013 ◽  
Vol 68 (6) ◽  
pp. 1406-1411 ◽  
Author(s):  
J. N. Zvimba ◽  
M. Mathye ◽  
V. R. K. Vadapalli ◽  
H. Swanepoel ◽  
L. Bologo
Keyword(s):  
Acid Mine Drainage ◽  
Retention Time ◽  
Suspended Solids ◽  
Sequencing Batch Reactor ◽  
Mine Drainage ◽  
Batch Reactor ◽  
Ferric Hydroxide ◽  
Complete Removal ◽  
Pilot Scale ◽  
Acid Mine

This study investigated Fe(II) oxidation during acid mine drainage (AMD) neutralization using CaCO3 in a pilot-scale Sequencing Batch Reactor (SBR) of hydraulic retention time (HRT) of 90 min and sludge retention time (SRT) of 360 min in the presence of air. The removal kinetics of Fe(II), of initial concentration 1,033 ± 0 mg/L, from AMD through oxidation to Fe(III) was observed to depend on both pH and suspended solids, resulting in Fe(II) levels of 679 ± 32, 242 ± 64, 46 ± 16 and 28 ± 0 mg/L recorded after cycles 1, 2, 3 and 4 respectively, with complete Fe(II) oxidation only achieved after complete neutralization of AMD. Generally, it takes 30 min to completely oxidize Fe(II) during cycle 4, suggesting that further optimization of SBR operation based on both pH and suspended solids manipulation can result in significant reduction of the number of cycles required to achieve acceptable Fe(II) oxidation for removal as ferric hydroxide. Overall, complete removal of Fe(II) during AMD neutralization is attractive as it promotes recovery of better quality waste gypsum, key to downstream gypsum beneficiation for recovery of valuables, thereby enabling some treatment-cost recovery and prevention of environmental pollution from dumping of sludge into landfills.

Effect of low pH and metal content on microbial community structure in an anaerobic sequencing batch reactor treating acid mine drainage

2019 ◽  
Vol 141 ◽  
pp. 105860 ◽  
Author(s):  
Alessandra Giordani ◽  
Renata Piacentini Rodriguez ◽  
Giselle Patrícia Sancinetti ◽  
Elize Ayumi Hayashi ◽  
Euzébio Beli ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Acid Mine Drainage ◽  
Microbial Community Structure ◽  
Metal Content ◽  
Sequencing Batch Reactor ◽  
Mine Drainage ◽  
Batch Reactor ◽  
Low Ph ◽  
Anaerobic Sequencing Batch Reactor

scholarly journals Effect of COD/SO42- Supply Ratio Variations of Sulfate-Reducing Bacteria of Sulphood Raise in Acid Mine Drainage

2018 ◽  
Vol 73 ◽  
pp. 05009
Author(s):  
Hardyanti Nurandani ◽  
Utomo Sudarno ◽  
Oktaviana Angelica ◽  
Serafina Katrin ◽  
Junaidi Junaidi
Keyword(s):  
Acid Mine Drainage ◽  
Sulphur Dioxide ◽  
Mine Drainage ◽  
Removal Rate ◽  
Batch Reactor ◽  
Septic Tank ◽  
Mining Activities ◽  
Sulfate Reducing ◽  
Acid Mine ◽  
Sulfate Removal

Sulphur dioxide gas is one of most contaminating gas in the air. Sulphur gas can be produced by mining activities. Sulphur gas will be harmful if bond with CO2 to form as Sulphur Dioxide. To reduce the Sulphur Dioxide gas concentration we must inhibite the sulphur gas formation from mining activities. The inhibition of sulphur gas could be done by reduce the sulphate concentration in acid mine drainage. One of important factor that influencing the reduce of sulphate is COD/SO42- ratio. The effect of COD/SO42- ratio on bacterial growth and sulfate removal process can be investigated with anaerobic batch reactor. The laundry septic tank sediments were inoculated on an anaerobic batch reactor which were contacted with artificial coal acid mine water wastes with 1000 sulfate concentrations and 2000 mg SO42- /L. In an anaerobic batch reactor there are five reactors with variations of COD / SO42-1.0, 1.5, 2.0, 4.0, and 8.0 ratios. Efficiency ratio and the best sulfate removal rate is in reactor ratio 2.0 with value efficiency of 46.58% and a reduction rate of 29.128 mg / L.day in an anaerobic batch reactor. The efficiency of the removal rate decreased when the COD / SO42->2.0 ratio decreased. The fastest pH decline was in the COD/SO42-8.0 ratio variation in the anaerobic batch reactor and. The COD / SO42-ratio can help the sulfate reduction process in the optimum value by affecting the sulfate-reducing bacterial metabolism in the balance of the acceptor and the electron donor.

Removal sulfate and metals Fe +2 , Cu +2 , and Zn +2 from acid mine drainage in an anaerobic sequential batch reactor

2017 ◽  
Vol 5 (2) ◽  
pp. 1985-1989 ◽  
Author(s):  
Josiel Martins Costa ◽  
Renata Piacentini Rodriguez ◽  
Giselle Patrícia Sancinetti
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Batch Reactor ◽  
Sequential Batch Reactor ◽  
Acid Mine

Anaerobic batch reactor treating acid mine drainage: Kinetic stability on sulfate and COD removal

2019 ◽  
Vol 31 ◽  
pp. 100825 ◽  
Author(s):  
Josiel Martins Costa ◽  
Renata Piacentini Rodriguez ◽  
Giselle Patrícia Sancinetti
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Batch Reactor ◽  
Kinetic Stability ◽  
Cod Removal ◽  
Acid Mine

Role of the Selected Grass Species in Developing of Swampy Forest System for Passive Treatment of Acid Mine Drainage

2021 ◽  
Vol 1025 ◽  
pp. 273-278
Author(s):  
Ihsan Noor ◽  
Yudi Firmanul Arifin ◽  
Bambang Joko Priatmadi ◽  
Akhmad Rizally Saidy
Keyword(s):  
Acid Mine Drainage ◽  
Environmental Sustainability ◽  
Mine Drainage ◽  
Batch Reactor ◽  
Threshold Value ◽  
Passive Treatment ◽  
Grass Species ◽  
Chemical Additives ◽  
Surface Coal Mining ◽  
Acid Mine

Acid Mine Drainage (AMD) is one of the consequences of environmental impact due to surface coal mining and has big challenge how to treat the AMD both active and passive treatment efficient and effectively. The most expensive method to actively raise the pH and concentration heavy metal reduction of this wastewater is the use of chemical additives. We present the development of passive treatment with Swampy Forest (SF) system as a new natural and sustainable method with lower costs, and greater environmental sustainability. The SF system consists of selecting organic matter and combining it with the planting of selected grass and tree species in the form of a forest constructed wetland. As a preliminary to the construction of the SF, a batch reactor system was used to carry out experiments to find the best individual grass species for SF as the development of AMD passive treatment. The four grass species selected were shown to reduce the concentration of Fe and Mn, which generally has out of threshold value, thus achieving the threshold parameter to comply with applicable regulations for managing mine wastewater.

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