Removal of Mn, Fe, Ni and Cu Ions from Wastewater Using Cow Bone Charcoal

Moreno, Juan Carlos; Gómez, Rigoberto Tovar; Giraldo, Liliana

doi:10.3390/ma3010452

Cited by 109 publications

(49 citation statements)

References 33 publications

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“…A second order reaction kinetic was observed also for the sorption on hydroxyapatite of other metal ions, such as Cd 2+ [3], Cu 2+ [19], Ni 2+ [10], Zn 2+ [34], Cr(VI) [35], or Pb 2+ [3,19,21]. For the adsorption of Co 2+ on a HAP/zeolite composite [34], Pb 2+ on a HAP/bentonite composite [6], Cr(VI), Zn 2+ , and Cd 2+ on HAP/chitosan composite [38], of Mn 2+ , Fe 2+ , Ni 2+ , and Cu 2+ on charcoal [17], the same pseudo-second order kinetic was found.…”

Section: Metal Ions Removal From Mine Wastewater Samplesmentioning

confidence: 99%

Hydroxyapatite for removal of heavy metals from wastewater

Avram¹,

Frențiu²,

Horovitz³

et al. 2017

Studia UBB Chemia

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ABSTRACT. HAP powder of a low crystallinity and rather large specific surface area was synthesized by an environmentally friendly, cost effective precipitation method, and characterized by XRD, FTIR, and BET isotherms. TEM and AFM are used to envisage the surface of HAP nano particles, showing a high porosity of this ceramic powder. It was used for the removal of metals (Al, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) from mine wastewater. Metal contents in the initial and treated samples were quantified by inductively coupled plasma atomic emission spectrometry and high-resolution continuum source atomic absorption spectrometry. By the use of HAP, an efficient removal of all metals was ensured. The increase of Ca 2+ ions content in the treated water suggests an ion exchange mechanism.

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Section: Metal Ions Removal From Mine Wastewater Samplesmentioning

confidence: 99%

Hydroxyapatite for removal of heavy metals from wastewater

Avram¹,

Frențiu²,

Horovitz³

et al. 2017

Studia UBB Chemia

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“…This suggests the adsorption process is multi-layer and depicts the applicability of the Freundlich isotherm model in the description of heavy metal removal with respect to retention time and LBHC dosage. Values of n were less than unity, which infers that significant adsorption occurred at high concentration and an increase in amount sorbed with concentration was significant at higher concentration (Moreno et al 2010). K value for cadmium and chromium at 100 g biosorbent dose was high.…”

Section: Isotherm Modelsmentioning

confidence: 88%

Investigation of locust bean husk char adsorbability in heavy metal removal

Ajayi-Banji¹,

Ogunlela²,

Ogunwande³

2017

Res. Agric. Eng.

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Ajayi-Banji A., Ogunlela A., Ogunwande G. (2017): Investigation of locust bean husk char adsorbability in heavy metal removal. Res Agr. Eng., 63: 29-35.The column adsorption study examines irrigation water treatment prior to its application in order to ensure watercrop-consumer heavy metal transfer reduction to the safe level using locust bean husk char (LBHC) as biosorbent. Char structural pattern was investigated with SEM-EDX machine. Contaminated surface water was introduced simultaneously into the bioreactors containing 100 and 200 g of LBHC and collected after 30, 60, 90 120 and 150 min of detention time. Removal efficiency, isotherm and kinetic sorption model were the evaluation tools for the study. Percent of Cr, Cd and As removal at 150 min retention time were 83.33, 100 and 100%, respectively for 100 g biosorbents. A similar trend was observed for Cr and As removal at the same retention time for 200 g of LBHC. Metals sorption conforms to the Freundlich isotherm with correlation coefficient values greater than 0.92. Experimental kinetics had a good fit for pseudo second order (R 2 > 0.94 for most cases). Removal efficiency is a function of contact time, biosorbent dosage and metal concerned. Locust bean husk char has good and effective treatability for some heavy metals in mildly polluted water.Keywords: locust bean husk char; biosorption; heavy metal; removal efficiency; isotherm, kinetic sorption 29Res. Agr. Eng. Vol. 63, 2017 (1): 29-35 MATERIAL AND METHODSLocust bean husk was sourced locally from farmers after harvest in Ilorin, Kwara State of Nigeria (Fig. 1). The precursor (husk) was cleaned from external materials such as sand and other aggregates and weighed (Fig. 1b). Weighed locust bean husks were wrapped with aluminium foil to ensure complete deoxygenated condition during carbonization. The wrapped husks were subjected to varying carbonization temperatures and times in a pre-set muffle furnace (Model SXL) to determine the suitable carbonization temperature and time based on char quality and energy expended. The temperatures were 300°C, 350°C, at 30 and 60 minutes. Pyrolyzed precursor (Fig. 1c) was crushed into granular particle and washed thoroughly in distilled water to prevent crosscontamination. The wet char was then oven dried at 105°C for 6 h, allowed to cool and sorted with 1,400 micron sieve before storage. Locust bean husk structural pattern was examined before and after carbonization using the SEM-EDX machine (TESCAN, South Africa). Two adsorbers were underlaid with 50 g of cotton wool, filled with 100 and 200 g of the non-activated char, respectively, before being overlaid with another 50 g of cotton wool for the experimental set-up. Effluent was collected under stringent condition from a flowing stream channelled through Pipeline, Ilorin-South Local Government, Ilorin, Kwara State. The water source is used by local farmers and horticulturists for irrigation of crops such as plantain, banana, maize, coconut, vegetable and flowers. Eighteen litres of the surface water wa...

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“…The Langmuir model assumes uniform adsorption energy for the surface with no adsorbate diffusion onto the surface, whereas the Freundlich isotherm is suitable for a highly heterogeneous surface and assumes that the amount adsorbed increases as the adsorbate concentration increases (Oke et al 2008;Moreno et al 2010).…”

Section: Adsorption Isotherm Modelsmentioning

confidence: 99%

Characterization of the Adsorption of 2,4-Dinitrophenol from Aqueous Solution onto Bovine Bone Char by Immersion Calorimetry

Murillo-Acevedo

Giraldo

Moreno–Piraján

2010

Adsorption Science & Technology

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ABSTRACT:The immersion enthalpies of bovine bone char in aqueous solutions of 2,4-dinitrophenol (DNP) of 10, 30, 50, 70 and 100 mg/ᐉ concentration were determined. The results showed that the amount of DNP adsorbed and the variation in the immersion enthalpy depended upon the concentration of the solution. For low concentrations, both an increase in the immersion enthalpy and in the amount of DNP adsorbed occurred, whereas at high concentrations there was a corresponding decrease in the immersion enthalpy and the adsorption percentage.

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Removal of Mn, Fe, Ni and Cu Ions from Wastewater Using Cow Bone Charcoal

Cited by 109 publications

References 33 publications

Hydroxyapatite for removal of heavy metals from wastewater

Hydroxyapatite for removal of heavy metals from wastewater

Investigation of locust bean husk char adsorbability in heavy metal removal

Characterization of the Adsorption of 2,4-Dinitrophenol from Aqueous Solution onto Bovine Bone Char by Immersion Calorimetry

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