Purification of petroleum produced water by novel Afzelia africana extract via single angle nephelometry

Menkiti, Matthew Chukwudi; Ndaji, C.R.; Ezemagu, I.G.; Oyoh, K.B.; Menkiti, Nwasinachi

doi:10.1016/j.jece.2015.06.009

Cited by 9 publications

(2 citation statements)

References 20 publications

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“…The treatment methods are selective and include chemical precipitation, adsorption, ion exchange and coagulation/flocculation, which had been implemented using varieties of coagulants and effluents [3][4][5][6][7]. The advantage is that coagulation is robust, relatively low energy demand, needs low operator skill and active in natural organic matter (NOM), inorganics and turbidity enriched effluent.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive approach on nepholometric study of paint effluent using Tympanotonos fuscatus extract

Ezemagu¹,

Menkiti²,

Ugonabo³

et al. 2017

Bull. Chem. Soc. Eth.

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ABSTRACT. Adsorptive study of paint effluent coagulation using T. fuscatus coagulant (TFC) is investigated. Effects of pH, dose, time, and temperature were investigated. Functional group, crystalline, morphology and thermal characteristics of samples were determined. Equilibrium data were analysed by Langmuir, Freundlich, Temkin, Frumkin, and Dubinin-Radushkevich (D-R) isotherms. Kinetic data were fitted to reversible first order, pseudo-first-order, pseudo-second-order, Elovich, intra-particle diffusion and Boyd kinetic models. Process Gibbs free energy (∆G°), enthalpy (∆H°) and the entropy (∆S°) were evaluated. The process was best described by Langmuir isotherm (R 2 > 0.99; X 2 ˂ 0.6; SSE ˂ 0.7). Pseudo second order best fitted the kinetic data. The process was spontaneous, feasible and endothermic. 97% optimal removal was achieved at pH 5. Tympanotonos fuscatus extract has potential for application as an effective coagulant while showing significant component of adsorptive phenomenon

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Section: Introductionmentioning

confidence: 99%

Adsorptive approach on nepholometric study of paint effluent using Tympanotonos fuscatus extract

Ezemagu¹,

Menkiti²,

Ugonabo³

et al. 2017

Bull. Chem. Soc. Eth.

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show abstract

“…The advantages of coag-flocculation over other methods include: (1) its simplicity and less energy demand, (2) low cost and (3) reliably robust and efficient [3,4].…”

Section: Introductionmentioning

confidence: 99%

Post-treatment sludge analyses and purification of paint effluent by coag-flocculation method

Menkiti

Ezemagu

Nwoye

et al. 2015

Int J Energy Environ Eng

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Tympanotonos fuscatus shell (T. fuscatus shell), an abundant eco-friendly waste was used as a precursor for the production of Tympanotonos fuscatus coagulant (TFC) for the purification of paint effluent (PE). Tympanotonos fuscatus shells (TFS) are of crustacean origin consisting mainly of chitin, calcium carbonate, entrained protein and other organic matrixes. Influence of pH, dosage and settling time on treatment efficiency was studied. Scanning electron microscopic, Fourier transform infra red, X-ray diffraction and differential scanning calorimetric/thermogravimetric analyses were carried out to investigate, respectively, the surface morphology, functional group, crystalline/lattice structure and thermal stability of TFS, TFC and settled sludge after treatment. The PE was optimally treated at 2 g/L TFC dosage, pH 5 and 97 % efficiency. Results indicated that TFC could be an efficient treatment agent for PE at the conditions of the experiment. Concentration of turbidity at time t = 0 N t Concentration of turbidity at time

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Evaluation of operational parameters and technology readiness for enhanced management of oilfield produced water treated by ozonation

da Costa,

Weschenfelder,

Prado Cechinel

et al. 2024

Chemical Engineering Journal

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Purification of petroleum produced water by novel Afzelia africana extract via single angle nephelometry

Cited by 9 publications

References 20 publications

Adsorptive approach on nepholometric study of paint effluent using Tympanotonos fuscatus extract

Adsorptive approach on nepholometric study of paint effluent using Tympanotonos fuscatus extract

Post-treatment sludge analyses and purification of paint effluent by coag-flocculation method

Evaluation of operational parameters and technology readiness for enhanced management of oilfield produced water treated by ozonation

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