Waste calcite sludge as an adsorbent for the removal of cadmium, copper, lead, and zinc from aqueous solutions

Merrikhpour, Hajar; Jalali, Mohsen

doi:10.1007/s10098-012-0450-0

Cited by 63 publications

(29 citation statements)

References 71 publications

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“…The concentration of obtained solution was determined via AAS method. In our experiments, we used the pH 3 solution, which was the boundary value for the optimum pH value of the adsorbent to remove Zn, Pb(II), and Cd ions from solutions, as reported by Merrikhpour and Jalali (2012) and Kocaoba (2007). The variable parameters of sorption experiments were the following: adsorbent doses equal to 0.5, 1, and 2 g and the contact time equal to 45, 90, and 180 min for each adsorbent dose.…”

Section: Sorption Experimentsmentioning

confidence: 99%

“…Experimental usage of calcite for heavy metal sorption, carried out by Zachara et al (1991), showed a good sorption capacity of that mineral. Research concerning the sorption of metals from wastewater (Brady et al 1999;Ayoub and Mehaweh 2007;Merrikhpour and Jalali 2012) showed that carbonate minerals had very good sorption properties. Besides, carbonates increased pH, with the reduction of the mobility of metals at the same time; therefore, carbonates were recognized as good materials to remove heavy metals from industrial wastewaters and to immobilize metals (Merrikhpour and Jalali 2012;Tozsin 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Research concerning the sorption of metals from wastewater (Brady et al 1999;Ayoub and Mehaweh 2007;Merrikhpour and Jalali 2012) showed that carbonate minerals had very good sorption properties. Besides, carbonates increased pH, with the reduction of the mobility of metals at the same time; therefore, carbonates were recognized as good materials to remove heavy metals from industrial wastewaters and to immobilize metals (Merrikhpour and Jalali 2012;Tozsin 2016). Other authors in their latest research revealed that dolomite is also an effective sorbent of metals (Ghaemi et al 2011(Ghaemi et al , 2013Mohammadi et al 2015;Yamkate et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Waste dolomite powder as an adsorbent of Cd, Pb(II), and Zn from aqueous solutions

et al. 2017

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Sorption experiments of the Cd, Zn, and Pb(II) ions from aqueous solutions on waste dolomite powder were investigated. Waste dolomite powder is inconvenient during storage due to fine particle size; therefore, its practical application is needed. The sorption experiments were conducted with variables: initial metal concentration (500, 1000, and 2000 mg/dm3 ) in single-and multi-element solutions, adsorbent dose (0.5, 1, and 2 g), and contact time (45, 90, and 180 min). Results showed that dolomite powder removed all ions from experimental solutions. For multi-element solution, Pb(II) was adsorbed almost in 100% at the initial concentration equal to 2000 mg/dm 3 . For Cd and Zn, sorption properties decreased with the increase in the initial metal concentration and the maximum values at the initial metal concentration of 500 mg/dm 3 were 42 and 47%, respectively. The results suggest that waste dolomite powder can be considered for application as sorbent in wastewater purification.

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Section: Sorption Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Waste dolomite powder as an adsorbent of Cd, Pb(II), and Zn from aqueous solutions

et al. 2017

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“…Attention has been paid for the removal heavy metal ions, especially toxic ions such as chromium [1][2][3] , cadmium 4,5 , mercury 6,7 , arsenic 8,9 and lead 10,11 from the environment.…”

Section: Introductionmentioning

confidence: 99%

Kinetic and Equilibrium Studies of Cr (VI) Removal from Tannery Effluent using Green Adsorbents

2017

JECET

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Green Adsorbents were derived from Neem bark for the removal of Cr (VI) from leather industry effluent. The carcinogenicity of Cr (VI) in tannery effluent is a serious threat to human health.. In the present study Neem Bark modified with solvents and after carbonization structures have been evaluated for their adsorption efficiency evaluation for the removal of heavy metal Cr (VI). The equilibrium and kinetic experiments were performed in batch mode. The equilibrium data was fitted with Langmuir and Freundlich models. Several operation variables such as adsorbent dosage, contact time, initial pH, and temperature on the removal of Cr (VI) were investigated. The removal efficiency increased with increase in adsorbent dosage. The adsorption process followed pseudo second order kinetics. Thermodynamic parameters like H, S and G were analysed. The processes were spontaneous for the removal of Cr (VI). These results suggest that adsorbents used are potential and green adsorbents for tannery industry waste water treatment.

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“…Kaolinite, montmorillonite, and their poly and tetra butyl ammonium derivatives were used for removing Cd (II) from aqueous solution [11]. The removal of metal ions from aqueous solutions by adsorption has been reported by various studies: Pb(II), Zn(II), Cd(II), and Cu(II) onto natural clay [12]; radio nuclides (137Cs) on kaolinite [13]; Pb(II), Cu(II), Fe(III), Mn(II), and Zn(II) onto kaolinite clay [14]; Cd(II), Cu(II), Pb(II), and Zn(II) onto waste calcite sludge [15]; Zn(II), Cd(II), Pb(II), and Cu(II) onto natural Jordanian zeolite [16]; Pb(II), Cu(II), Cd(II), and Ni(II) onto Iranian natural zeolite [17]; Pb(II) and Cd(II) onto clay mineral beidellite [18]; and Zinc(II) onto modified Brazilian gray clay [19].…”

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confidence: 99%

Removal of Copper Using Clay Admixed with Quarry Fines as Landfill Liners

Varadarajan¹,

Venkatesan²,

Swaminathan³

2016

Pol. J. Environ. Stud.

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Waste calcite sludge as an adsorbent for the removal of cadmium, copper, lead, and zinc from aqueous solutions

Cited by 63 publications

References 71 publications

Waste dolomite powder as an adsorbent of Cd, Pb(II), and Zn from aqueous solutions

Waste dolomite powder as an adsorbent of Cd, Pb(II), and Zn from aqueous solutions

Kinetic and Equilibrium Studies of Cr (VI) Removal from Tannery Effluent using Green Adsorbents

Removal of Copper Using Clay Admixed with Quarry Fines as Landfill Liners

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