Technoproductive evaluation of the energyless microbial-integrated diffusion dialysis technique for acid mine drainage valorization

2020 ◽  
Vol 6 (5) ◽  
pp. 1217-1229
Author(s):  
Hanaa M. Hegab ◽  
Ahmed ElMekawy ◽  
Christopher Saint ◽  
Fawzi Banat ◽  
Shadi W. Hasan ◽  
...  
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Toxic Metal ◽  
Acid Mine ◽  
Metal Contents ◽  
Diffusion Dialysis ◽  
Dialysis Technique

Acid mine drainage (AMD) presents severe ecological pollution challenges because of its extreme acidity and sulphate and toxic metal contents.

scholarly journals Review of Remediation Solutions for Acid Mine Drainage Using the Modified Hill Framework

2021 ◽  
Vol 13 (15) ◽  
pp. 8118
Author(s):  
Sandisiwe Khanyisa Thisani ◽  
Daramy Vandi Von Kallon ◽  
Patrick Byrne
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Toxic Metal ◽  
Water Remediation ◽  
Acid Mine ◽  
Operational Costs ◽  
Safe Management ◽  
Additional Process ◽  
Further Development ◽  
By Products

This paper reviews the Acid Mine Drainage (AMD) remediation potential and operational costs of twelve existing AMD remediation methods against Class 0 and Class I AMD geochemical characteristics as defined in the Modified Hill Framework. Of the twelve remediation options reviewed in this study, eleven required additional process steps either for further treatment to achieve the discharge limits or for the safe management of hazardous waste by-products. Chemical desalination showed the greatest potential with high quality treated water and operational costs between USD 0.25 and USD 0.75 per cubic meter treated. The management of the toxic metal and sulphide by-products remains a key challenge that requires further research for sustainable mine water remediation. Further development of end-to-end methods suitable for Class 0 AMD with economical operational costs is recommended in order to effectively address the ongoing environmental challenges posed by AMD globally.

scholarly journals Selective Removal of As(V) Ions from Acid Mine Drainage Using Polymer Inclusion Membranes

Minerals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 909
Author(s):  
Iwona Zawierucha ◽  
Anna Nowik-Zajac ◽  
Grzegorz Malina
Keyword(s):  
Acid Mine Drainage ◽  
Toxic Metals ◽  
Arsenic Removal ◽  
Mine Drainage ◽  
Environmental Pollutants ◽  
Sulfuric Acid Concentration ◽  
Toxic Metal ◽  
Cellulose Triacetate ◽  
Selective Removal ◽  
Acid Mine

Acid mine drainage (AMD) is globally recognized as one of the environmental pollutants of the priority concern due to high concentrations of toxic metals and sulfates. More rigorous environmental legislation requires exploitation of effective technologies to remove toxic metals from contaminated streams. In view of high selectivity, effectiveness, durability, and low energy demands, the separation of toxic metal ions using immobilized membranes with admixed extractants could ameliorate water quality. Cellulose triacetate based polymer inclusion membranes (PIMs), with extractant and plasticizer, were studied for their ability to transport of As(V) ions from synthetic aqueous leachates. The effects of the type and concentration of extractant, plasticizer content, and sulfuric acid concentration in source phase on the arsenic removal efficiency have been assessed. Under the best of applied conditions, PIM with Cyanex 921 as extractant and o-nitrophenyl octyl ether (o-NPOE) as plasticizer showed high repeatability and excellent transport activity for selective removal of As(V) from AMD.

scholarly journals Thiomonas sp. CB2 is able to degrade urea and promote toxic metal precipitation in acid mine drainage waters supplemented with urea

2015 ◽  
Vol 6 ◽  
Author(s):  
Julien Farasin ◽  
Jérémy Andres ◽  
Corinne Casiot ◽  
Valérie Barbe ◽  
Jacques Faerber ◽  
...  
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Toxic Metal ◽  
Acid Mine ◽  
Metal Precipitation ◽  
Drainage Waters

scholarly journals Polymeric ion exchanger supported ferric oxide nanoparticles as adsorbents for toxic metal ions from aqueous solutions and acid mine drainage

2019 ◽  
Vol 17 (2) ◽  
pp. 719-730 ◽  
Author(s):  
Caroline Lomalungelo Dlamini ◽  
Lueta-Ann De Kock ◽  
Kebede Keterew Kefeni ◽  
Bhekie Brilliance Mamba ◽  
Titus Alfred Makudali Msagati
Keyword(s):  
Acid Mine Drainage ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Ferric Oxide ◽  
Mine Drainage ◽  
Toxic Metal ◽  
Ion Exchanger ◽  
Oxide Nanoparticles ◽  
Toxic Metal Ions ◽  
Acid Mine

scholarly journals Coal-derived humic acid for application in acid mine drainage (AMD) water treatment and electrochemical devices

2021 ◽  
Author(s):  
Tonkeswar Das ◽  
Mousumi Bora ◽  
Joyshil Tamuly ◽  
Santhi Maria Benoy ◽  
Bimala P. Baruah ◽  
...  
Keyword(s):  
Humic Acid ◽  
Water Treatment ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Research Work ◽  
Toxic Metal ◽  
Acid Mine ◽  
Electrochemical Devices ◽  
High Degree ◽  
Charge Discharge

AbstractIn this research work, isolation of humic acid from coal of Northeastern region of India is reported. The study is also targeted for application of the coal-derived humic acid in acid mine drainage (AMD) water treatment and electrochemical devices. All the obtained results are compared with the standard humic acid and examined the formation of humic acid from the coal. The isolated coal-derived humic acid is found to be high degree of humifications and relatively stable up to about 200 °C. The FTIR study indicates the formation of metal-humic acid complexes. On treatment with acidic water (AMD), the coal-derived humic acid was found to have the ability to remove toxic metal such as (in order) Pb > Cu > Zn > Cd. In addition, the preliminary electrochemical properties of the isolated humic acid are also discussed in the paper. The specific capacitance of the isolated coal-derived humic acid via cyclic voltammetry and charge-discharge analysis is found to be 7 mF/g at scan rate 10 mV/s and 22 mF/g within the potential window 0.4 V, respectively. The charge-discharge cycles are stable for more than 1000 cycles within the potential window 0.4 V. This study will create a new pathway for the further research in this field.

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