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cadmium adsorption on manganese modified

May 10 2016 · Read Cadmium adsorption on manganese modified bentonite and bentonite–quartz sand blend International Journal of Mineral Processing on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at

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Journal of Chemical and Pharmaceutical Research 2018
Journal of Chemical and Pharmaceutical Research 2018

The influence of pH on the adsorption of heavy metals cadmium manganese and cobalt was studied on a chemically modified clay The isotherms were realized at pH 2 3 4 and 65 The heavy metals were applied as nitrates with initial concentrations ranging from 10 to 50 ppm The adsorption was

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Original Research Sorption of Lead and Cadmium
Original Research Sorption of Lead and Cadmium

Sorption of Lead and Cadmium Cations on Natural and ManganeseModified Zeolite Anna M Anielak1 Rafał Schmidt2 1Faculty of Environmental Engineering Cracow University of Technology Poland 2Department of Water and Wastewater Technology Koszalin University of Technology Śniadeckich 2 75453 Koszalin Poland Received 27 May 2010

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CdII adsorption from aqueous solution by raw and
CdII adsorption from aqueous solution by raw and

This study aimed to investigate the adsorption and desorption potential of raw kaolinite Kaol and manganese oxide MnO 2modified kaolinite MnOKaol for the removal of cadmium CdII ions from aqueous solution and waste chemical and morphological characterizations of kaol and MnOKaol were carried out by using Scanning Electron Microscopy SEM and Fourier Transform Infrared

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Sorption of lead ions on diatomite and manganese oxides
Sorption of lead ions on diatomite and manganese oxides

Diatomite and manganese oxides modified diatomite are an effective adsorbents for removing lead ions from solution The sorption capacity of diatomite and modified diatomite were 24 and 99 mg g −1 for lead ions respectively The high increase in sorption efficiency of Mndiatomite was attributed to high negative surface charge on the

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Investigating the sorption behavior of cadmium from
Investigating the sorption behavior of cadmium from

Abstract In this work a KMnO 4modifiedbiocharbased composite material with manganese oxide produced at 600 °C was fabricated to investigate the sorption mechanism of CdII and to comprehensively evaluate the effect of the modification on biochar II adsorption mechanisms were mainly controlled by interaction with minerals complexation with oxygencontaining

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Ultrafast sequestration of cadmium and lead from water by
Ultrafast sequestration of cadmium and lead from water by

From the adsorption isotherm shown in Fig 4 both PbII and CdII adsorption by HMOKBC satisfactorily conformed to the Freundlich model with related coefficient R 2 097 suggesting a heterogeneous chemisorption process It can be put down to two different adsorption sites ie the impregnated HMO and the host KBC on HMOKBC

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The mechanism of cadmium sorption by sulphurmodified
The mechanism of cadmium sorption by sulphurmodified

The mechanism of cadmium sorption by sulphurmodified wheat straw biochar and its application cadmiumcontaminated soil XPS spectra of C1s O1s S2p and Cd3d for BC and SBC before and after cadmium adsorption respectively The increase of soil pH will convert Cd into a carbonate state and iron‑manganese oxidation state because of the

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Heavy metal adsorption by hydrous iron and manganese
Heavy metal adsorption by hydrous iron and manganese

Manganesemodified natural sand in the remediation of aquatic environment contaminated with heavy metal toxic ions Cadmium adsorption in freshwaters a quantitative appraisal of the literature Science of The Total Environment 1983 30 129146 DOI 1010160048969783900074

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Modification of Natural Clay Surface with Manganese
Modification of Natural Clay Surface with Manganese

Natural clay NC and its surface modified with manganese oxide MnONC was assessed for removal of Cd II ion by batch adsorptive process The surface modification of NC was chemically prepared with manganese chloride in basic solution by simple procedure resulting in larger surface area than raw material by about 10times FTIR spectra and SEM photograph showed the unique characteristic

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The Adsorption of CdII on Manganese Oxide Investigated
The Adsorption of CdII on Manganese Oxide Investigated

Manganese Mn oxide is a ubiquitous metal oxide in subenvironments The adsorption of CdII on Mn oxide as function of adsorption time pH ionic strength temperature and initial CdII concentration was investigated by batch techniques

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ADSORPTION OF CADMIUM AND COPPER BY MANGANESE
ADSORPTION OF CADMIUM AND COPPER BY MANGANESE

Cadmium and copper adsorption by δMnO2 was investigated by potentiometric titration over a range of pH Adsorption increased with increasing pH because of hydrolysis of metal cations andor variable charge sites on δMnO2 δMnO2 The surface acidity constant for δMnO2 was determined using the Trip

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Investigating the sorption behavior of cadmium from
Investigating the sorption behavior of cadmium from

CdII adsorption mechanisms were mainly controlled by interaction with minerals complexation with oxygencontaining functional groups and cationπ interaction The sorption capacity was significantly reduced after a deash treatment of biochar almost shrunk by 3 and 35 times for pristine biochar PBC and modified biochar MBC

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Heavy metal adsorption by hydrous iron and manganese
Heavy metal adsorption by hydrous iron and manganese

Manganesemodified natural sand in the remediation of aquatic environment contaminated with heavy metal toxic ions Cadmium adsorption in freshwaters a quantitative appraisal of the literature Science of The Total Environment 1983 30 129146 DOI 1010160048969783900074

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Modification of Natural Clay Surface with Manganese
Modification of Natural Clay Surface with Manganese

Natural clay NC and its surface modified with manganese oxide MnONC was assessed for removal of Cd II ion by batch adsorptive process The surface modification of NC was chemically prepared with manganese chloride in basic solution by simple procedure resulting in larger surface area than raw material by about 10times FTIR spectra and SEM photograph showed the unique characteristic

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ADSORPTION OF CADMIUM NICKEL AND LEAD ON
ADSORPTION OF CADMIUM NICKEL AND LEAD ON

ADSORPTION OF CADMIUM NICKEL AND LEAD ON MODIFIED NATURAL ZEOLITE Blessing Taenzana A research report submitted to the Faculty of Engineering and the Built Environment University of the Witwatersrand Johannesburg in partial fulfilment of the requirements for the degree of Master of Science in Engineering

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Sorption of Lead Ions on Diatomite and Manganese Oxides
Sorption of Lead Ions on Diatomite and Manganese Oxides

While modified the diatomite with sixteen alkyl trimethylamine bromide solution manganese dioxide and calcium carbonate the effects of diatomite dosage adsorption time and initial pH value on

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Biosorptive Removal of CadmiumII and CopperII Using
Biosorptive Removal of CadmiumII and CopperII Using

Sorghum bicolor SB is used in this work for preparing chemically modified adsorbent for toxic metal ions ie cadmiumII and copperII 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

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Removal of CdII and CuII from Aqueous Solution by Na
Removal of CdII and CuII from Aqueous Solution by Na

Heavy metals have caused serious environmental issues which are enriched during opencast coal mining It is urgent to develop sustainable remediation materials to protect and restore the contaminated soil and aquifers in mining areas The feasibility of applying Pisha sandstone PS and Na modified Pisha sandstone NaPS for adsorption of heavy metals was evaluated

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PDF A Review on Removal of Heavy Metal Ions from Waste
PDF A Review on Removal of Heavy Metal Ions from Waste

The increasing number of research publications on adsorption of heavy metals using modified bentonite leads to the fact that there has been a surging importance in the production of a variety of

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Mechanism of Arsenic Adsorption on Magnetite
Mechanism of Arsenic Adsorption on Magnetite

Adsorption antagonism and synergy of arsenateV and cadmiumII onto Femodified rice straw biochars Environmental Geochemistry and Health 2017 133 DOI 101007s1065301799848 Zhipan Wen Yalei Zhang Xuefei Zhou Rong Chen Effective AsIII and AsV immobilization from aqueous solution by nascent ferrous hydroxide colloids FHC

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Original Research BacteriaModified Red Mud for
Original Research BacteriaModified Red Mud for

adsorption of cadmium ions has been investigated as a function of contact time pH temperature and adsorbent dose The cadmium ions have been absorbed by bacteriamodified red mud from polluted river water and CdNO 3 2 solution and the results have been shown on the adsorption behavior of cadmium on bacteriamodified red mud

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ADSORPTION OF Zn2 Cd2 AND Cu2 ON ZEOLITES
ADSORPTION OF Zn2 Cd2 AND Cu2 ON ZEOLITES

Adsorption of Zn2 Cd2 and Cu2 on zeolites coated by manganese and iron oxides 895 modified by iron oxide FeOCZ has a high capability to adsorb high concentrations of heavy metals from solutions According to literature the FeOCZ has a higher specific

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The Adsorption of CdII on Manganese Oxide Investigated
The Adsorption of CdII on Manganese Oxide Investigated

Manganese Mn oxide is a ubiquitous metal oxide in subenvironments The adsorption of CdII on Mn oxide as function of adsorption time pH ionic strength temperature and initial CdII concentration was investigated by batch techniques

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Adsorption of cadmium onto modified nanosized
Adsorption of cadmium onto modified nanosized

AbstractIn this study adsorptive removal of cadmiumII from aqueous solutions using sodium dodecyl sulfatemodified magnetite nanoparticles was modeled To this aim central composite design as one of the most favorable designs in response surface methodology RSM was employed to optimize the removal of CdII from solution under different variables such as adsorbent dosage 01–055 g

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Preconcentration of trace cadmium and manganese using 1
Preconcentration of trace cadmium and manganese using 1

2009 Preconcentration of trace cadmium and manganese using 12pyridylazo2naphtholmodified TiO2 nanoparticles and their determination by flame atomic absorption spectrometry International Journal of Environmental Analytical Chemistry Vol 89 Proceedings of the 35th International Symposium of Environmental Analytical Chemistry Gdansk Poland 22–26 June 2008 pp 749758

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Characterization and Properties of Manganese Oxide Coated
Characterization and Properties of Manganese Oxide Coated

Kinetics and thermodynamics of the phosphine adsorption on the modified activated carbon Frontiers of Chemical Science and Engineering 2011 5 2 203208 DOI 101007s1170501005710 Weihua Zou Lei Zhao Runping Han Adsorption characteristics of uranyl ions by manganese oxide coated sand in batch mode

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Cation sorption on colloidal hydrous manganese dioxide
Cation sorption on colloidal hydrous manganese dioxide

Transformations of 2line ferrihydrite and its effect on cadmium adsorption Environmental Science and Pollution Research 2018 25 Batch and column studies on uranium adsorption by Amberlite XAD4 modified with nanomanganese dioxide Adsorption from aqueous solution by δmanganese dioxide I Adsorption of the alkalineearth cations

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Adsorption of Divalent Cadmium CdII from Aqueous
Adsorption of Divalent Cadmium CdII from Aqueous

Jun 15 2006 · The XPS data suggests that cadmium was mainly adsorbed as Cd2 and was attached to the NH2 group The adsorption data could be fitted to a twosite Langmuir adsorption isotherm The data obtained at various temperatures provided a single characteristic curve when correlated according to a modified Polanyis potential theory

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Heavy Metals Removal from Wastewater by Adsorption
Heavy Metals Removal from Wastewater by Adsorption

nm for cadmium 3248nm for copper 2833nm for lead 2795nm for manganese AirC2H2 gas was used as fuel gas with flow rate ranged 18 2 Lmin Metal adsorbed concentration was evaluated Heavy Metals Removal from Wastewater by Adsorption on Modified Physically1 1

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Study on the adsorption behavior of cadmium copper and
Study on the adsorption behavior of cadmium copper and

Oct 27 2018 · The material was evaluated in adsorbing cadmium II copper II and lead II ions The adsorption behavior of cadmium copper and lead ions on the absorbent material was studied Experiment results show that the adsorption rate is rapid for heavy metal ions and the adsorption amount tends to constant after 40 min

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Original Research BacteriaModified Red Mud for
Original Research BacteriaModified Red Mud for

adsorption of cadmium ions has been investigated as a function of contact time pH temperature and adsorbent dose The cadmium ions have been absorbed by bacteriamodified red mud from polluted river water and CdNO 3 2 solution and the results have been shown on the adsorption behavior of cadmium on bacteriamodified red mud

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Adsorption of Cadmium on Bed Sediments of   SpringerLink
Adsorption of Cadmium on Bed Sediments of SpringerLink

The adsorption characteristics of cadmium on bed sediments ofriver Hindon in western Uttar Pradesh India have been effect of various operating variables viz initial concentration solution pH sediment dose contact time particlesize and temperature has been studied

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Biochar Modified by Nanomanganese Dioxide as
Biochar Modified by Nanomanganese Dioxide as

Biochar has limited capacity to adsorb oxytetracycline OTC Here we have used bamboo willow biochar BC as a carrier to produce nMnO2loaded biochars MBC by a coprecipitation method Their chemical compositions morphological features specific surface area and surface functional groups were observed or determined Batch experiments were conducted to assess the effects of reaction time

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Comparing the adsorption mechanism of Cd by rice straw
Comparing the adsorption mechanism of Cd by rice straw

Biochar was considered as an effective and novel sorbent for cadmium Cd adsorption from aqueous solution In this study the adsorption isotherm investigations were conducted to examine the effect of biochar produced via pyrolysis from rice straw on removing aqueous Cd before and after modification by 2 M KOH solution Langmuir and Freundlich adsorption isotherms can preferably describe the

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Isotherm investigation of the adsorption of cadmium
Isotherm investigation of the adsorption of cadmium

Keywords Adsorption Graft copolymerization Isotherm adsorption models and cadmium INTRODUCTION Cadmium is a toxic heavy metal found in the environment 1 Cadmium increases naturally in the environment through gradual processes such as rock abrasion and soil erosion as well as from singular events such as volcanic eruptions and

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Adsorption of CadmiumII Ion from Aqueous Solution onto
Adsorption of CadmiumII Ion from Aqueous Solution onto

This work was focused on evaluating the potential of bamboo powder modified with manganese oxide MnOBP as a lowcost byproduct adsorbent for the adsorption of cadmiumII ion A batch method was carried out at room temperature and the optimized conditions The optimization of adsorption parameters including pH equilibrium time dosage and initial CdII concentration was also

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