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Manganese Removal By Low Cost Adsorbent From Synthetic Wastewater-A Review, Innovative Research Publications Irp India, Vinod Pahade, A. K. Sharma
Manganese Removal By Low Cost Adsorbent From Synthetic Wastewater-A Review, Innovative Research Publications Irp India, Vinod Pahade, A. K. Sharma
Innovative Research Publications IRP India
Manganese (Mn) is one of the most abundant metals in Earth’s crust. Manganese is present in ground water as a divalent ion (Mn2+) and is considered a pollutant mainly because of its organoleptic properties. It is an essential metal for the human system and many enzymes are activated by manganese. Therefore, manganese has to be removed from some waters and wastewaters for various reasons. Conventional chemical and physical treatments for Mn(II) removal from contaminated effluent consist of precipitation, depth filtration, ion exchange, adsorption and oxidation. The adsorption technique has been found to be one of the most effective for the …
Lead Sorption By Carbon Nanofibers Grown On Powdered Activated Carbon - Kinetics And Equilibrium
Lead Sorption By Carbon Nanofibers Grown On Powdered Activated Carbon - Kinetics And Equilibrium
Faculty of Engineering University of Malaya
Carbon nanofibers (CNFs) were synthesized by using a safe and less hazardous method, compared to using floating catalysts in chemical vapor deposition (CVD) process. This process used C2H2 as carbon source and oil palm kernel shell-based powdered activated carbon (PAC) as cheap solid substrate. Use of nickel (Ni2+) impregnated PAC as fixed substrate for the synthesis of CNF is one of the novelties of the research work accomplished by the authors. The PAC CNFs porous nanocomposite product was used for the sorption of lead ions (Pb2+) from synthetic aqueous solution. Kinetics of Pb2+ adsorption and isotherms were investigated by varying …
Performance Evaluation Of Natural Iron-Rich Sandy Soil As A Low-Cost Adsorbent For Removal Of Lead From Water, Yee Sern Ng, Bhaskar Sen Gupta, Mohd Ali Hashim
Performance Evaluation Of Natural Iron-Rich Sandy Soil As A Low-Cost Adsorbent For Removal Of Lead From Water, Yee Sern Ng, Bhaskar Sen Gupta, Mohd Ali Hashim
Ng Yee-Sern
Technical feasibility of natural iron-rich sandy soil as a low-cost adsorbent for removal of lead from water was investigated . The soil, which had an iron content of 3,719 mg/kg, was collected from Hulu Langat, Malaysia, and was used for adsorption studies without any surface modification through chemical treatment. The effects of pH, solution: soil ratio and initial lead concentration on the adsorption efficiency were studied using response surface methodology based on Box–Behnken experimental design. The results showed that pH of the solution had the highest impact on the adsorption efficiency whereby adsorption efficiency of 97% could be achieved at …
Peat And Coconut Fiber As Biofilters For Chromium Adsorption From Contaminated Wastewaters, Henryk Koloczek, Jaroslaw Chwastowski, Witold Zukowski
Peat And Coconut Fiber As Biofilters For Chromium Adsorption From Contaminated Wastewaters, Henryk Koloczek, Jaroslaw Chwastowski, Witold Zukowski
Witold Zukowski
Batch adsorption experiments were performed for the removal of chromium (III) and chromium (VI) ions from aqueous solutions using Canadian peat and coconut fiber. The Langmuir model was used to describe the adsorption isotherm. The maximum adsorption for peat reached 18.75 mg/g for Cr(III) and 8.02 mg/g for Cr(VI), whereas the value for fiber was slightly higher and reached 19.21 mg/g for Cr(III) and 9.54 mg/g for Cr(VI). Both chromium forms could be easily eluted from the materials. The adsorption of chromium forms to organic matter could be explained in terms of formation of donor-acceptor chemical covalent bound with hydroxyl …