The material showed excellent sorption performance for the removal of arsenic from a synthetic aqueous solution It removed approximately 93% arsenic from a 50mg/L solution at equilibration time The modified carbon black is capable of removing arsenic in a relatively broad pH range of 3-6 invariably in the acidic region Removal of Methylene Blue from Aqueous Solution by Adsorption onto Crofton Weed Stalk Lijuan Wang * and Jian Li Crofton weed stalk (CWS) was used as an adsorbent to remove methylene blue () from aqueous solution The adsorbent was analyzed by FT-IR and observed by SEM The porosity and pH zpc were measured The effects of adsorbent dose

Arsenic removal from aqueous solutions by sorption onto

1428 ANDJELKOVIĆ et al Agency (EPA) published a new standard for arsenic in drinking water requiring public water supplies to reduce arsenic from 50 to 10 ppb by 2006 8 Although many different methods such as precipitation 9 ion-exchange10 and reverse osmo- sis 11 12 have been used for arsenic removal adsorption from solution has re- ceived more attention due

Adsorption (ADS) and dielectrophoresis (DEP) technique were combined (ADS/DEP) to efficiently remove As (V) in aqueous solution Fly ash activated carbon corncob and plant ash were tested to determine the best adsorbent by their adsorption capacity Plant ash showed the highest adsorption capacity compared with the others Different parameters such as solution

Studies carried out reveal the great influence of solution pH on the As adsorption From obtained data can conclude that the As adsorption onto the studied material occurs with best results at pH near 6 References Altundogan H S Altundogan S Tumen F Bildik M Arsenic removal from aqueous solutions by adsorption on red mud

the adsorption capacity decreased from 11 823 to 8 078 mg g 1 in five cycles In conclusion MCB could be used as an efficient adsorbent for environment purification and conveniently separated from aqueous solution after adsorption 1 Introduction Arsenic (As) is known as one of the most toxic chemical

Arsenic (III) adsorption has been studied as a function of concentration of arsenic (III) in the solution pH of the solu- tion contact time during the batch extraction process using montmorillonite (MMT) and surfactant modified MMT (CPC-MMT and CTAB-MMT) from aqueous solution It has been observed that up to 90% of arsenic (III) can be ex-

2016 ASP Ins Afarand Scholarly Publishing Institute

Adsorption of Arsenic from Aqueous Solutions by Iron Filings and the Effect of Magnetic Field 38 Int Arch Health Sci Spring 2016 Vol 3 Iss 2 filings as adsorbent for arsenic removal and the adsorption capacity was reported 0 3mg/g [13] Lien Wilkin also have conducted a study on arsenic removal by iron filings [14]

The removal of As(III) from aqueous solution onto Fe-UTAC was carried out as a function of temperature concentration and pH The sorption capacity (mol g -1 ) of Fe-UTAC was observed to increase with increase in arsenite concentration while a decrease in the As(III) uptake was observed by increasing the temperature of the system

the adsorption capacity decreased from 11 823 to 8 078 mg g 1 in five cycles In conclusion MCB could be used as an efficient adsorbent for environment purification and conveniently separated from aqueous solution after adsorption 1 Introduction Arsenic (As) is known as one of the most toxic chemical

DOI: 10 1371/journal pone 0100704 Corpus ID: 15219889 Arsenic Removal from Aqueous Solutions Using Fe3O4-HBC Composite: Effect of Calcination on Adsorbents Performance article{Baig2014ArsenicRF title={Arsenic Removal from Aqueous Solutions Using Fe3O4-HBC Composite: Effect of Calcination on Adsorbents Performance} author={Shams Ali Baig

Various methods of arsenic removal from contaminated water have been applied including chemical precipitation membrane process ion exchange and adsorption Adsorption is widely used to remove heavy metals from aqueous solutions as the most effective method using low-cost adsorbents (Aultundogan et al 2000)

Heavy Metal Poisoning Nervous System Mercury Poisoning Chemicals and Drugs 67 Metals Zinc Metals Alkali Cobalt Copper Nickel Metals Alkaline Earth Manganese Cations Divalent Chromium Iron Lead Chelating Agents Mercury Soil Pollutants Metals Rare Earth Ions Coordination Complexes Metal Ceramic Alloys Magnesium Metalloproteins Metals Light

The presence of metal ions in aqueous solutions represents a major environmental problem These inorganic species are persistent and non-biodegradable pollutants that should be eliminated from water In the recent years biosorption have emerged as an economical and environmental friendly method for the decontamination of polluted water The present work

E K Agrafioti D E Dimitrios Ca and Fe modified biochars as adsorbents of arsenic and chromium in aqueous solutions J Environ Manage 146 (2014) 444–450 J Hua Adsorption of low-concentration arsenic from water by co-modified bentonite with manganese oxides and poly (dimethyldiallylammonium chloride) J Environ

Arsenic removal from aqueous solutions by adsorption onto

The adsorption capacities of activated carbon and iron oxide/activated carbon composite were determined by batch adsorption isotherms at room temperature (20 1C) in aqueous solution In several glass vials 100 mL of solution containing various As(V) concentrations (50 100 150 200 250 mg/L) were contacted with 5 0 g/L of adsorbent

favorable adsorption in the studied concentration range (100-700 μg As(III) / L) The studied binary mixed oxide develops promising adsorbent properties concerning the arsenic (III) removal from aqueous medium Keywords: arsenic removal binary mixed oxide sorption kinetics sorption equilibrium Depending on the sources the drinking water

Nov 01 2006Removal of Arsenic from Aqueous Solutions by Sorption onto Sewage Sludge-Based Sorbent Water Air Soil Pollution 2011 DOI: 10 1007/s11270-011-1025-0 Zleyha zlem Kocabaş Yuda Yrm Kinetic Modeling of Arsenic Removal from Water by Ferric Ion Loaded Red Mud

Mar 25 2016For initial adsorption 10 mg/L arsenic solution with initial pH value adjusted to 6 was contacted with 1 g/L of beads for 7 d For regeneration beads that had adsorbed arsenic were removed from solution washed with DI water and then agitated in 0 05 M NaOH solution for 24 h to desorb arsenic from the beads

Biochar is a promising material for removing metal ions from water and soil through adsorption In this study rice straw was pyrolyzed to prepare biochars at 300 C (RSBC300) 500 C (RSBC500) and 700 C (RSBC700) in an oxygen-limited atmosphere The biochars were used in batch experiments for adsorption of copper (Cu) ions in aqueous solution

The purpose of this study was to investigate the photocatalytic removal of arsenic from aqueous solution using UV/TiO 2 process in a batch system A 120 W UV lamp with irradiation 247 nm wave lenght inside a quartz jacket was submerged in the reactor to provide better irradiation of water samples in the presence of TiO 2 nanoparticles The optimum dosage of TiO 2 was

The adsorption of As and Se from dilute aqueous solutions representing model power-plant effluent streams by calcined and uncalcined layered double hydroxide (LDH) adsorbents has been investigated The results indicate that As(V) has a greater adsorption capacity than Se(IV) for both calcined and uncalcined LDHs An mth-order kinetic rate equation describes the adsorption

the adsorption capacity decreased from 11 823 to 8 078 mg g 1 in five cycles In conclusion MCB could be used as an efficient adsorbent for environment purification and conveniently separated from aqueous solution after adsorption 1 Introduction Arsenic (As) is known as one of the most toxic chemical

As(III) aqueous solution C0 = 10mg/l at native pH After continuous stirring for 24h the solid was sepa-rated by filtration and arsenic concentration in the re-maining solution was measured Adsorption isotherms were studied by varying initial concentration of As(III) from 0 25–14mg/l Solutions with specific concentrations of As(III

mandatory for high arsenic removal from drinking water supplies containing high concentration of As(III) Several technologies such as reverse osmosis ion exchange adsorption are available for removal of arsenic from aqueous solutions 9-13 A relatively new