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Bio-derived MgO nanopowders for BOD and COD reduction fromtannery wastewater.

Authors: Aleshinloye Abimbola Ololade

Publication Type: Journal article

Journal: Journal Of Water Process Engineering

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Abstract

tMgO nanopowders were synthesised via a simple and “greener” route using Carica papaya leaf extract at500?C. The bio-derived MgO nanopowders (MgONPs) were characterised by Brunauer–Emmett–Teller(BET), differential thermal and thermogravimetric (DTA-TGA) analysis, powder X-ray diffraction analysis(XRD) and scanning electron microscopy (SEM) equipped with an energy-dispersive spectroscopy (EDS).The COD and BOD reduction efficiency of the MgO—NPs was evaluated in the presence of raw and simu-lated tannery wastewater. Under optimum conditions, the COD of raw tannery wastewater reduced from2725.9 mg/L to 126.5 mg/L and BOD from 1899.5 mg/L to 104.5 mg/L in a batch system. Also, the turbiditywas reduced from the initial concentration of 588 NTU to a level of 98 NTU within 120 min. Impressively,93.5% COD reduction and 96.9% BOD reduction were obtained by the fixed-bed system. The spent MgOwas regenerated and reused several times without significant loss of capacity. Hence, the bio-derivedMgO nanopowders offered potential benefits for BOD and COD removal from tannery wastewater.

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Aleshinloye,A. . (0000). Bio-derived MgO nanopowders for BOD and COD reduction fromtannery wastewater., 16 (), 142-142.

Aleshinloye,A. . "Bio-derived MgO nanopowders for BOD and COD reduction fromtannery wastewater." 16, no (), (0000): 142-142.

Aleshinloye,A. and . (0000). Bio-derived MgO nanopowders for BOD and COD reduction fromtannery wastewater., 16 (), pp142-142.

AleshinloyeA, . Bio-derived MgO nanopowders for BOD and COD reduction fromtannery wastewater.. 0000, 16 ():142-142.

Aleshinloye,Abimbola Ololade , . "Bio-derived MgO nanopowders for BOD and COD reduction fromtannery wastewater.", 16 . (0000) : 142-142.

A.Abimbola Ololade , "Bio-derived MgO nanopowders for BOD and COD reduction fromtannery wastewater." vol.16, no., pp. 142-142, 0000.

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