New hybrid nanocomposite of copper terephthalate MOF-graphene oxide: synthesis, characterization and application as adsorbents for toxic metal ion removal from Sungun acid mine drainage

2017 ◽  
Vol 24 (28) ◽  
pp. 22353-22360 ◽  
Author(s):  
Esmaeil Rahimi ◽  
Neda Mohaghegh
Keyword(s):  
Graphene Oxide ◽  
Acid Mine Drainage ◽  
Metal Ion ◽  
Mine Drainage ◽  
Toxic Metal ◽  
Hybrid Nanocomposite ◽  
Metal Ion Removal ◽  
Ion Removal ◽  
Acid Mine

Alternative treatment for metal ion removal from acid mine drainage using an organic biomixture as a low cost adsorbent

2021 ◽  
pp. 101853
Author(s):  
Marcela Levio-Raiman ◽  
Gabriela Briceño ◽  
Heidi Schalchli ◽  
Cristian Bornhardt ◽  
M. Cristina Diez
Keyword(s):  
Acid Mine Drainage ◽  
Alternative Treatment ◽  
Metal Ion ◽  
Mine Drainage ◽  
Low Cost ◽  
Metal Ion Removal ◽  
Ion Removal ◽  
Acid Mine

Heavy and toxic metal ion removal by a novel polymeric ion-exchanger: synthesis, characterization, kinetics and equilibrium studies

2014 ◽  
Vol 90 (12) ◽  
pp. 2170-2179 ◽  
Author(s):  
Raja S. Azarudeen ◽  
Mohamed A. Riswan Ahamed ◽  
R. Subha ◽  
Abdul R. Burkanudeen
Keyword(s):  
Metal Ion ◽  
Toxic Metal ◽  
Ion Exchanger ◽  
Equilibrium Studies ◽  
Metal Ion Removal ◽  
Ion Removal

Chemical equilibria in wastewaters during toxic metal ion removal by agricultural biomass

2010 ◽  
Vol 254 (17-18) ◽  
pp. 2181-2192 ◽  
Author(s):  
Valeria Marina Nurchi ◽  
Guido Crisponi ◽  
Isabel Villaescusa
Keyword(s):  
Metal Ion ◽  
Toxic Metal ◽  
Chemical Equilibria ◽  
Agricultural Biomass ◽  
Metal Ion Removal ◽  
Ion Removal

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 Biosorptive Removal of Cadmium(II) and Copper(II) Using Microwave-Assisted Thiourea-Modified Sorghum bicolor Agrowaste

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Muhammad Salman ◽  
Rabia Rehman ◽  
Umar Farooq ◽  
Anum Tahir ◽  
Liviu Mitu
Keyword(s):  
Metal Ions ◽  
Sorghum Bicolor ◽  
Metal Ion ◽  
Toxic Metal ◽  
Order Kinetic ◽  
Metal Ion Removal ◽  
Ion Removal ◽  
Removal Capacity ◽  
Biosorption Process ◽  
Ft Ir

Sorghum bicolor (S.B.) is used in this work for preparing chemically modified adsorbent for toxic metal ions, i.e., cadmium(II) and copper(II). Thiourea is selected for chemical modification of this plant waste by microwave solid fusion methodology, so that its chelating ability for metal ions can be enhanced in both acidic and basic conditions, in a cheaper and quicker way. Characterization was carried out by different physiochemical means using FT-IR, SEM, etc. An increase in pHpzc value was observed in TSB, which is confirmed by FT-IR analysis. The effect of biosorption process parameters was also studied and found that maximum removal of these toxic ions occurred in slightly acidic pH (5-6) conditions, following pseudo-second-order kinetic model. Boyd plots indicated that film dispersion mode was the rate-determining step. Langmuir model indicated that the maximum metal ion removal capacity of TSB was 17.241 mg/g and 15.151 mg/g for cadmium(II) and copper(II) ions. So, TSB can be used on a larger scale for toxic metal ion removal by Sorghum bicolor waste in a cleaner way.

Sign in / Sign up

Export Citation Format

Share Document