Novel Strategies for the Removal of Toxic Metals from Soils and Waters

Roundhill, D. Max

doi:10.1021/ed081p275

Cited by 50 publications

(19 citation statements)

References 48 publications

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“…If the metal contains in the blood up to 10 mg/mL, it can cause illness symtoms and Pb(II) concentrations in the water does not depend on the season, but on the depth. Lead ions contained in the water can get into the body of the fish and other aquatic animals [2]. Siswanta research resulted that the adsorbent Calix [4]resorcinarene, hybrid or Calix [4]resorcinarene-chitosan and chitosan can be applied to eliminate the Pb(II) metal ions.…”

Section: Introduction:-mentioning

confidence: 99%

Study of Pb(ii) and Fe(iii) Metal Cations Adsorption Into P-Tert-Butylcalix[4]arene as Adsorbent: Kinetic Adsorption.

Busroni¹,

Siswanta²,

SantosaS³

et al. 2017

IJAR

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This research explain the study about compound of 5,11,17,26,27,arene (TBCA) that will be used as adsorption material for heavy metal cations. Adsorption using immersion method with variations such as the value of acidity (pH), time of exposure and initial concentration of metal cations have been conducted. The results of each investigation showed that the optimum pH of adsorption was at pH = 5 for metal cations of Pb(II) and Fe (III). The observation results showed the optimum time exposure of cation adsorption of Pb(II) and Fe(III) was 90 minutes. Study about kinetic adsorption of Pb(II) metal cations of the adsorbent refered the Ho kinetic model, pseudo second order with rate constant of adsorption 143x10 -3 g.mol -1 .min -1 and Fe(III) refered the Lagergren kinetics model, pseudo first order with the rate constant of 9.21 x 10 -3 min -1 . The observation of the study showed that the isotherms adsorption for metal cations of Pb(II) and Fe(III) refered the pattern trend of Langmuir isotherm models. The value of the optimum capacity for metal cation adsorption Pb(II) and Fe(III) each was 128.46 mg/g and 156.09 mg/g respectively. Adsorption energy for Pb(II) and Fe(III) was 5.81 k.J/mol and 7.01 kJ / mol, respectively. …………………………………………………………………………………………………….... Introduction:-The existence of the metal cations can endanger human health as heavy metals if enter into the body, because the heavy metals are toxic/poison. Heavy metals are chemical elements with a specific gravity greater than 5 g/cm 3 that located in the lower right corner of the periodic table system. Iron or Ferrum (Fe) is a silvery-white metal, clay, and can be formed. It has been conducted a study of adsorption of metal cations Fe(III) in aqueous systems using zeolite, in the determination of adsorption of metal cations Fe +3 performed at pH area between 1-6 [1]. Lead was widely used in the paint factory, fuel, battery industry and ammunition bullets. Lead is toxic which very influenced toward children, because the paint is widely used in residences. If the metal contains in the blood up to 10 mg/mL, it can cause illness symtoms and Pb(II) concentrations in the water does not depend on the season, but on the depth. Lead ions contained in the water can get into the body of the fish and other aquatic animals [2]. Siswanta research resulted that the adsorbent Calix[4]resorcinarene, hybrid or Calix[4]resorcinarene-chitosan and chitosan can be applied to eliminate the Pb(II) metal ions. The results of the investigation explained that the value of adsorption capacity was Calix[4]resorcinaren > Chitosan > Calix [4] resorcinarene-chitosan (hybrid) [3]. Prabawati, reported that it can be synthesized compounds of p-t.butyl-37-monoallyloxy-38,39,40,41,42-pentahidroxycalix[6]arene and p-t.butyl-

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Section: Introduction:-mentioning

confidence: 99%

Study of Pb(ii) and Fe(iii) Metal Cations Adsorption Into P-Tert-Butylcalix[4]arene as Adsorbent: Kinetic Adsorption.

Busroni¹,

Siswanta²,

SantosaS³

et al. 2017

IJAR

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“…Chromium is not an exception to this. Among the stable oxidation states of chromium, Cr(III) is an essential dietary mineral in low doses, whereas Cr(VI) is carcinogenic [1].…”

Section: Introductionmentioning

confidence: 99%

Solid phase extraction of chromium(VI) from aqueous solutions by adsorption of its ion-association complex with cetyltrimethylammoniumbromide on an alumina column

Rajesh

Deepthi

Subramaniam

2007

Journal of Hazardous Materials

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“…Of these, adsorption is considered to be the best technology for removing heavy metals at low concentrations. Among the most suitable adsorbents, activated carbon is one of the most attractive and the most used adsorbent in various wastewater treatment industries (Kadirvelu et al 2004;Roundhill 2004;Ayyappan et al 2005;Machida et al 2005a;Foo and Hameed 2011).…”

Section: Introductionmentioning

confidence: 99%

Batch and Column Studies for the Removal of Lead from Aqueous Solutions Using Activated Carbons from Viticultural Industry Wastes

Deiana

Giménez

Rómoli

et al. 2014

Adsorption Science & Technology

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Novel Strategies for the Removal of Toxic Metals from Soils and Waters

Cited by 50 publications

References 48 publications

Study of Pb(ii) and Fe(iii) Metal Cations Adsorption Into P-Tert-Butylcalix[4]arene as Adsorbent: Kinetic Adsorption.

Study of Pb(ii) and Fe(iii) Metal Cations Adsorption Into P-Tert-Butylcalix[4]arene as Adsorbent: Kinetic Adsorption.

Solid phase extraction of chromium(VI) from aqueous solutions by adsorption of its ion-association complex with cetyltrimethylammoniumbromide on an alumina column

Batch and Column Studies for the Removal of Lead from Aqueous Solutions Using Activated Carbons from Viticultural Industry Wastes

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