Use of steel converter slag as nickel adsorber to wastewater treatment

Ortiz, Nilce; Pires, Maria Aparecida Faustino; Bressiani, José Carlos

doi:10.1016/s0956-053x(00)00123-9

Cited by 121 publications

(37 citation statements)

References 9 publications

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“…In conclusion, the application of ultrasonic irradiation in the impregnation step was found to be beneficial to prepare with high adsorption capacity activated carbon for use as adsorbent to remove Ni 2+ from aqueous solutions. For the sake of comparison, Table 3 presents comparative values of nickel adsorption capacity for some adsorbents [26][27][28][29][30]. The comparison of the experimental adsorption capacity obtained in this study with the data in the literature for various adsorbents shows that activated carbon prepared from ultrasoundassisted KOH-impregnated hazelnut shell is an effective adsorbent of Ni +2 from aqueous solutions.…”

Section: Optimization Resultsmentioning

confidence: 74%

RESPONSE SURFACE METHODS OPTIMIZATION ON THE ADSORPTION OF Ni2+ FROM AQUEOUS SOLUTIONS ON THE ACTIVATED CARBON PREPARED FROM ULTRASOUND-ASSISTED KOH IMPREGNATED HAZELNUT SHELLS

Şayan¹,

Ingeç²

2017

ANADOLU UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY a - Applied Sciences and Engineering

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The optimization of the adsorption of Ni 2+ from aqueous solutions was investigated by ultrasound-assisted preparation of activated carbon from alkaline impregnated hazelnut shells. To investigate the effects of independent variables such as particle size, ultrasonic power density, impregnation ratio, impregnation time, activation temperature and activation time on the adsorption of Ni 2+ from aqueous solutions, the experiments were designed by using the fractional factorial and central composite design method. Furthermore, the results were modelled statistically and optimized by using constrained optimization technic by means of the Matlab. The ultrasonic irradiation used for the alkaline impregnation into hazelnut shells was found to be beneficial for preparation of activated carbon for use as adsorbents to remove Ni 2+ from aqueous solutions.

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Section: Optimization Resultsmentioning

confidence: 74%

RESPONSE SURFACE METHODS OPTIMIZATION ON THE ADSORPTION OF Ni2+ FROM AQUEOUS SOLUTIONS ON THE ACTIVATED CARBON PREPARED FROM ULTRASOUND-ASSISTED KOH IMPREGNATED HAZELNUT SHELLS

Şayan¹,

Ingeç²

2017

ANADOLU UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY a - Applied Sciences and Engineering

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“…27 The adsorption data were fitted to the Langmuir and Freundlich isotherm models and Fig. 3 shows the Langmuir plot.…”

Section: Results and Discussion Adsorptionmentioning

confidence: 99%

A modified cellulose adsorbent for the removal of nickel(II) from aqueous solutions

O’Connell

Birkinshaw

O’Dwyer

2006

J of Chemical Tech & Biotech

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A series of adsorption studies was carried out on a glycidyl methacrylate-modified cellulose material functionalised with imidazole (Cellulose-g-GMA-Imidazole) to assess its capacity in the removal of Ni(II) ions from aqueous solution. The study sought to establish the effect of a number of parameters on the removal of Ni(II) from solution by the Cellulose-g-GMA-Imidazole. In particular, the influence of initial metal concentration, contact time, solution temperature and pH were assessed. The studies indicated a Ni(II) uptake on the Celluloseg-GMA-Imidazole sorbent of approximately 48 mg g −1 of nickel from aqueous solution. The adsorption process fitted the Langmuir model of adsorption and the binding process was mildly endothermic. The kinetics of the adsorption process indicated that nickel uptake occurred within 400 min and that pseudo-second order kinetics best describe the overall adsorption process. Nickel(II) adsorption, recovery and re-adsorption studies indicated that at highly acidic pH values the adsorbent material becomes unstable, but in the range pH 3-6, the adsorbent is stable and shows limited but significant Ni(II) recovery and re-adsorption capability.

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“…Moreover, the material should be inexpensive. For that reason, many different materials have been studied as possible sorbents, i.e., kaolin (Arias et al 2002), perlite (Mathialagan and Viraraghavan 2002), bentonite (Naseem and Ve Tahir 2001), fly ash (Panday et al 1984;Bayat 2002), zeolites (Franus et al 2015), and even steel converter and blast furnace slag (Ortiz et al 2001;Johansson 1999). More and more often, low-cost materials are investigated as adsorbents (Salam et al 2011;Hegazi 2013;Mikoda et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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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Use of steel converter slag as nickel adsorber to wastewater treatment

Cited by 121 publications

References 9 publications

RESPONSE SURFACE METHODS OPTIMIZATION ON THE ADSORPTION OF Ni2+ FROM AQUEOUS SOLUTIONS ON THE ACTIVATED CARBON PREPARED FROM ULTRASOUND-ASSISTED KOH IMPREGNATED HAZELNUT SHELLS

RESPONSE SURFACE METHODS OPTIMIZATION ON THE ADSORPTION OF Ni2+ FROM AQUEOUS SOLUTIONS ON THE ACTIVATED CARBON PREPARED FROM ULTRASOUND-ASSISTED KOH IMPREGNATED HAZELNUT SHELLS

A modified cellulose adsorbent for the removal of nickel(II) from aqueous solutions

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

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