Kinetics and performance of coagulation process using Mucuna seed shell for the treatment of paint wastewater

Nwabanne, Joseph Tagbo; Oguegbu, Ozioma Onyinye; Agu, Chinedu M.

doi:10.1080/22243682.2018.1548304

Cited by 12 publications

(5 citation statements)

References 33 publications

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“…In the spectra of the plant extract, the broad peak observed around 3273 cm −1 could be attributed to O–H stretching vibration. This O–H group has also been reported on mucuna seed shell, and are associated with proteins and glycerides ( Nwabanne et al., 2018 ). The broadness of this peak is usually associated with the strong hydrogen bonding that exist in them due to the wide difference in the electronegativity of hydrogen and the oxygen atom.…”

Section: Resultsmentioning

confidence: 72%

Physico-chemical characteristics and cytotoxicity evaluation of CuO and TiO2 nanoparticles biosynthesized using extracts of Mucuna pruriens utilis seeds

Gamedze

Mthiyane

Babalola

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 72%

Physico-chemical characteristics and cytotoxicity evaluation of CuO and TiO2 nanoparticles biosynthesized using extracts of Mucuna pruriens utilis seeds

Gamedze

Mthiyane

Babalola

et al. 2022

Heliyon

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“…First and second order kinetics models developed by Singh and Mishra (2016) and Nwabanne et al (2018) are used to describe the process of removing pollutants, specifically suspended solids. In a batch EC system, the level of pollutant elimination can be stated as Eq.…”

Section: Ec Kinetic Modelmentioning

confidence: 99%

Improving the Quality of Anaerobically-Pretreated Palm Oil Mill Effluent Using Electrocoagulation

Sailah¹

2021

J. Ecol. Eng.

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The palm oil extraction process generates large amounts of effluents with very high concentrations of pollutants, even though they are subjected to anaerobic pretreatment. Further treatment is needed in order to ensure that the effluent is safe for disposal or reuse. This work was conducted to evaluate the performance of an electrocoagulation process in removing pollutants from the anaerobically-pretreated palm oil mill effluent. A 1000 ml beaker glass equipped with a magnetic stirrer was used as an electrocoagulation reactor with four plates of aluminum electrode @ 12×2 cm and an effective area of 0.1 m 2 arranged in a bipolar configuration. The experiments run in a batch mode were carried out at various voltage levels and contact times, namely 10, 15, and 20 V for 15, 30, 45 and 60 min. The level of pollutant removal and electrical energy consumption were determined. The electrocoagulation process at 15 V for 30 min produced the highest level of pollutant removal for TSS, turbidity, color, COD, and BOD 5 , i.e. 90%, 86%, 93%, 87%, and 97%, respectively. The estimated operating costs for these process conditions are 1.48 USD/m 3. A second order empirical model was developed to describe the TSS removal in the POME electrocoagulation process. The electrocoagulation with aluminum electrodes can significantly reduce various types of pollutants of anaerobically-pretreated POME, such as TSS, turbidity, color, COD, and BOD 5. The estimated cost of EC operation is cheaper than the chemical coagulation process.

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“…Hence, the need for alternative opened up new research interests on natural or bio-coagulants [23,24]. Extracts from shells (snail shell chitosan) [25], Periwinkle shell extract [16], plant based coagulants (moringa) [26], mucuna seed extract [27,28] have been successfully used in wastewater treatment as bio-coagulants. More precursors are still under investigation of which this work has been able to harness and study one (gastropod shells from livestock farming).…”

Section: Introductionmentioning

confidence: 99%

Optimal Conditions of Paint Wastewater Coagulation With Gastropod Shell Conchiolin Using Response Surface Design and Artificial Neural Network-Genetic Algorithm

Ejimofor

Ezemagu

Menkiti

et al. 2022

Preprint

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The potential of gastropod shell conchiolin (GSC) (a waste product of the deprotenization stage of chitosan production) as one of the alternatives to chemical coagulants has been explored for treatment of paint industrial wastewater (PW). The accuracy of response surface design (RSD) and the precision of artificial intelligence (AI) in predicting and optimizing the process conditions were harnessed in raising experimental design matrix and response optimization, respectively for the bench scale jar test coagulation experiment. PW was characterized using American public health association (APHA) standard methods. Extraction of conchiolin was done via alkaline extraction method. PW contains 2098mg/l total suspended solid (TSS) above discharge limit (1905mg/l). Fourier transform infrared (FTIR) spectrum of GSC revealed a broad N–H wagging band at 750 – 650 cm−1 indicating the presence of secondary amine linked to the presence of protein. Turbidity removal from PW via one factor at a time (OFAT) was found to be a function of pH, GSC dosage, temperature and time. Artificial neural network (ANN) response prediction shows 92% correlation with the response surface design (RSD) experimental result. The optimal conditions obtained via genetic algorithm (GA) for the response optimization at the best pH of 4 indicate optimal turbidity removal of 98% at GSC dosage, time and temperature of 4 g, 20 min and 45oC, respectively.

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Kinetics and performance of coagulation process using Mucuna seed shell for the treatment of paint wastewater

Cited by 12 publications

References 33 publications

Physico-chemical characteristics and cytotoxicity evaluation of CuO and TiO2 nanoparticles biosynthesized using extracts of Mucuna pruriens utilis seeds

Physico-chemical characteristics and cytotoxicity evaluation of CuO and TiO2 nanoparticles biosynthesized using extracts of Mucuna pruriens utilis seeds

Improving the Quality of Anaerobically-Pretreated Palm Oil Mill Effluent Using Electrocoagulation

Optimal Conditions of Paint Wastewater Coagulation With Gastropod Shell Conchiolin Using Response Surface Design and Artificial Neural Network-Genetic Algorithm

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