Heavy metal ions adsorption from dairy industrial wastewater using activated carbon from milk bush kernel shell

Afolabi, Tinuade Jolaade; Alade, Abass Olanrewaju; Jimoh, M.O.; Fashola, Isaiah O.

doi:10.1080/19443994.2015.1074619

Cited by 28 publications

(4 citation statements)

References 15 publications

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“…Moreover, in a 2:1 proportion, it functions effectively to remove COD by 75.3% and BOD by 79.69%. Finally, in a 1:2 proportion, it is productive to remove COD by 80.65% and BOD by 81.09% (Moradi and Maleki, 2013;Karale and Suryavanshi, 2014;Afolabi et al, 2015;Al-Jabari, 2016;Kurzbaum and Bar Shalom, 2016;Al-Jabari et al, 2017;Falahati et al, 2018;Choi et al, 2019;Al-Ananzeh, 2021).…”

Section: Post-treatment Techniquesmentioning

confidence: 99%

Dairy Wastewater Treatment through Synergies of the Biological and Hybrid Membrane: A Systematic Review

Mekuria¹

2022

J ENVIRON INFORM LET

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Wastewater treatment techniques have two categories: pre- and post-treatment. Physical, chemical, and biological pretreatment techniques are commonly employed to treat dairy wastewater. Secondly, dairy wastewater post-treatment techniques include physico-chemical and membrane treatment approaches. This review article aims to critically examine and describe pre- and post-treatment techniques for dairy wastewater treatment. The benefits, drawbacks, performance comparisons, and features of each pre - and posttreatment have been extensively investigated. This article uses a systematic literature review method to review and examine other research findings. The results indicate that despite extensive studies on pre- and post-treatment techniques, both have limitations. In this context, aerobic pre-treatment, for example, has high lactose levels, low water capacity, and efficiency concerns. Furthermore, anaerobic pretreatment has issues with lengthy starting times, a high fermentable lactose content, poor residual alkalinity, and fat consumption. In physico-chemical post-treatment, there are high amounts of sludge production and high quantities of chemicals required for pH corrections. Likewise, membrane post-treatment, for instance, has a short membrane lifespan, low selectivity and flux, linear up-scaling, and concentration polarization membrane fouling. Therefore, a synergy of physico-chemical and aerobic, for example, adsorption-aerobic, and synergy of pre-hydrolysis and anaerobic, such as enzymatic hydrolysis-anaerobic treatment, will help to overcome the drawbacks of both anaerobic and aerobic treatment techniques. In conclusion, the most promising techniques for dairy wastewater treatment are combinations of adsorption-aerobic and enzymatic hydrolysis-anaerobic with microfiltration, nanofiltration, reverse osmosis, and ultrafiltration.

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Section: Post-treatment Techniquesmentioning

confidence: 99%

Dairy Wastewater Treatment through Synergies of the Biological and Hybrid Membrane: A Systematic Review

Mekuria¹

2022

J ENVIRON INFORM LET

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“…Studies have utilized a number of materials as adsorbents, such as zeolites, graphene oxide, carbon‐silica gel, montmorillonite, polymers, and iron‐based composites for the removal of heavy metals from aqueous solutions . Recent studies have highlighted the importance of crosslinked polymeric hydrogels, polymeric films, or their composites as adsorbents of heavy metal ions for their low cost, ease of use, chemical and mechanical strength, and reusability.…”

Section: Introductionmentioning

confidence: 99%

Nanodiamond‐containing polyethyleneimine hybrid materials for lead adsorption from aqueous media

Çi̇ği̇l

Urucu

Kahraman

2019

J of Applied Polymer Sci

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This study describes the preparation of new surface‐modified nanodiamond (ND) particles containing urethane‐based hybrid materials by photopolymerization of aliphatic urethane acrylate, trimethylolpropane triacrylate, glycidyl methacrylate monomers, and their usage for lead adsorption from aqueous media. ND and synthesized surface‐modified ND were characterized by atom transfer radical addition Fourier transform infrared spectroscopy (ATR‐FTIR) and scanning transmission electron microscopy analysis. Crosslinked adsorbent nanocomposites were then treated with polyethylene imine and all adsorbent nanocomposites were characterized by ATR‐FTIR, scanning electron microscopy, thermogravimetric analysis, and contact angle measurements. The metal ion binding capacity of the surfaces of the nanocomposites containing high amine content was investigated. The effects of the percentage of functional monomer, pH, and contact time on adsorption, and the interaction of foreign metal ions have been tested. Optimum contact time was found to be 7 h at pH 5. The adsorption capacity of the synthesized nanocomposite adsorbent for lead (II) was determined as 17.12 mg g−1. Langmuir and Freundlich isotherms were used to determine the adsorption behaviors and Langmuir isotherm model was found to be the most suitable model (R2: 0.9988). The amount of adsorption of Pb (II) ions of UV curable adsorbent film prepared in river water samples was investigated. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48241.

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“…The general methodologies for the removal of heavy metal ions from wastewater are chemical precipitation, chemical coagulation, adsorption, ion exchange [5][6][7][8][9], etc. But these techniques are not suitable for the treatment of water steams with low concentration [10,11].…”

Section: Introductionmentioning

confidence: 99%

Removal of Sn2+ using copolymer of maleic acid-acrylic acid (PMA) by complexation-ultrafiltration and regeneration of PMA using shear induced dissociation and ultrafiltration

Le¹,

Qiu²,

Tang³

2019

Desalination and Water Treatment

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Commercially available polymer, the copolymer of maleic acid and acrylic acid (PMA), was used for the efficient removal of Sn 2+ from aqueous solutions by complexation-ultrafiltration. The rejection of Sn 2+ reached up to 99.3% at pH 5.0 and P/M (the mass ratio of polymer to metal ions) 5. The study was the first to examine the kinetics of complexation reactions of PMA with Sn 2+. It takes 35 min for Sn 2+ to get the complexation equilibrium, and the reaction kinetics can be described by a pseudo-first-order equation. The stability of PMA-Sn complex in the shear field was studied for the first time. The critical rotating speeds at which the PMA-Sn complex began to dissociate were 1960, 1680, 1520 rpm at pH values 5.0, 4.0, 3.0, respectively, and the corresponding critical shear rates (γ c) were calculated as 2.68 × 10 5 , 2.15 × 10 5 and 1.67 × 10 5 s-1 , respectively. Furthermore, shear induced dissociation and ultrafiltration (SIDU) were effectively applied to recover Sn 2+ and regenerate PMA. The SIDU is a promising technology for recovering tin and regenerating PMA. Compared with the traditional dissociation by acidification, SIDU avoids the use of acid and alkali, and it is in line with the idea of green chemistry.

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Heavy metal ions adsorption from dairy industrial wastewater using activated carbon from milk bush kernel shell

Cited by 28 publications

References 15 publications

Dairy Wastewater Treatment through Synergies of the Biological and Hybrid Membrane: A Systematic Review

Dairy Wastewater Treatment through Synergies of the Biological and Hybrid Membrane: A Systematic Review

Nanodiamond‐containing polyethyleneimine hybrid materials for lead adsorption from aqueous media

Removal of Sn2+ using copolymer of maleic acid-acrylic acid (PMA) by complexation-ultrafiltration and regeneration of PMA using shear induced dissociation and ultrafiltration

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