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Yoann Glocheux,Ahmad B. Albadarin,Chirangano Mangwandi,Emma Stewart,Gavin M. Walker 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.25 No.-
The optimisation of Fe and Al oxyhydroxide materials produced using industrial grade coagulants is presented in this work. The effects of synthesis pH and post-synthesis washing procedure onto the arsenic adsorption capacity of the materials were investigated. It was shown that the materials produced at higher pH were more efficient in removing As(V), especially after cleaning procedure. The materials produced at lower pH were less efficient in removing As(V) but the higher presence of sulphate groups in the materials produced at lower pH enhanced As(III) adsorption. Most performing materials can remove up to 84.7 mg As(V) g1 or 77.9 mg As(III) g1.
Behzad Heibati,Ahmad B. Albadarin,Susana Rodriguez-Couto,Nurdan Gamze Turan,Okan Ozgonenel,M. Asif,Inderjeet Tyagi,Shilpi Agarwal,Vinod Kumar Gupta 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.31 No.-
Rapid removal of the Acid Orange 7 (AO7) from aqueous solutions using natural pumice (NP) and Fecoatedpumice (Fe-CP) as low-cost adsorbents was well investigated and elucidated. The impact ofseveral influential parameters such as initial pH, initial AO7 concentration and contact time on theadsorption of AO7 removal was studied and optimized. The good agreement of adsorption equilibriumdata and analysis of isotherms with the Freundlich isotherm proved that it is the best fitted adsorptionisotherm model for the depicting the AO7 adsorption on both the developed adsorbents, which clearlyindicates the heterogeneity of the adsorbent surface. The maximum adsorption capacities for the NP andFe-CP were found to be 15.56 and 27.68 mg/g, respectively. The rate of adsorption followed the pseudosecond-order kinetic model.
Mohammad Hadi Dehghani,Masoome Mostofi,Mahmood Alimohammadi,Gordon McKay,Kaan Yetilmezsoy,Ahmad B. Albadarin,Behzad Heibati,Mohammad Al Ghouti,N.M. Mubarak,J.N. Sahu 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.35 No.-
The adsorption capabilities of two nano-sized adsorbents: multi-walled carbon nanotubes (MWCNTs)and single-walled carbon nanotubes (SWCNTs) were investigated for the removal of toxic phenol. Themaximum adsorption capacities of MWCNTs and SWCNTs were determined as 64.60 and 50.51 mg/g,respectively. Adsorption kinetics followed the pseudo-second order model for both adsorbents. Theoptimum conditions using SWCNTs and MWCNTs were pH 6.57 and 4.65, phenol concentration 50 and50 mg/L, dose 1.97 and 2 g/L and contact time 36 and 56 min, respectively. The results indicated thatMWCNTs and SWCNTs were proven as high-performance adsorbents for toxic phenol removal fromwastewater.
Highly selective trace ammonium removal from dairy wastewater streams by aluminosilicate materials
Elaine O’Connor,Oisin N. Kavanagh,Drahomir Chovan,David G. Madden,Patrick Cronin,Ahmad B. Albadarin,Gavin M. Walker,Alan Ryan 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.86 No.-
Water is a key solvent, fundamental to supporting life on earth. It is equally important in many industrialprocesses, particularly within agricultural and pharmaceutical industries, which are major drivers of theglobal economy. The results of water contamination by common activity in these industries is well knownand EU Water Quality Directives and Associated Regulations mandate that NH4+ concentrations ineffluent streams should not exceed 0.3 mg L 1, this has put immense pressure on organisations andindividuals operating in these industries. As the environmental andfinancial costs associated with waterpurification begin to mount, there is a great need for novel processes and materials (particularlyrenewable) to transform the industry. Current solutions have evolved from combating toxic sludge to theuse of membrane technology, but it is well known that the production of these membrane technologiescreates a large environmental footprint. Zeolites could provide an answer; their pore size and chemistryenable efficient removal of aqueous based cations via simple ion exchange processes. Herein, wedemonstrate efficient removal of NH4+ via both static and dynamic methodology for industrialapplication. Molecular modelling was used to determine the cation–framework interactions which willenable customisation and design of superior sorbents for NH4+ capture in wastewater.