Waste Moringa oleifera seed pods as green sorbent for efficient removal of toxic aquatic pollutants

Shirani, Zahra; Santhosh, Chella; Iqbal, Jibran; Bhatnagar, Amit

doi:10.1016/j.jenvman.2018.08.077

Cited by 65 publications

(14 citation statements)

References 67 publications

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“…In another study by Shirani and co-workers [85], investigating the potential of Moringa Oleifera seed pods powder (MPP) as a green biosorbent for the removal of Cr 4 + ions and Naphthol blue-black (NBB) dye using various pore sizes of MPP (fine fraction < 53 μm, coarse fraction > 250 μm, and mixed fraction), results were also promising. The biosorbent was characterised by FTIR and SEM, followed by optimum parameter analysis (pH, contact time, initial concentration of pollutant, adsorbent dosage, and co-existing ions).…”

Section: Types and Sources Of Biopolymer Adsorbentsmentioning

confidence: 99%

A Review on Electrochemical Degradation and Biopolymer Adsorption Treatments for Toxic Compounds in Pharmaceutical Effluents

et al. 2020

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Pharmaceutical industries generate very large quantities of toxic organic compounds which include volatile organic compounds (VOCs) and/or organic volatile impurities (OVIs). These toxic compounds, amongst which are emerging residual solvents, largely come from wastewater treatment plants (WWTPs) and are being continuously dumped into the environment at an alarming rate. Efficient treatment of pharmaceutical wastewaters (effluents) is currently a major challenge because of not only the enormous quantity to be disposed of but also its complexity, as well as its hazardous nature. Dumping these kinds of polluted wastes into the environment at uncontrolled rates are putting increasing pressure on freshwater ecosystems. This review paper focuses on combined electrochemical degradation and biopolymer adsorption treatment processes and techniques for toxic compounds in pharmaceutical wastewater treatment. These emerging processes such as the combination of electrochemical techniques as a primary treatment method, followed by an adsorption process, is now a topic of intense research as it is proving to very feasible, ecofriendly, and cost-effective in the complete recovery of toxic residual solvents from binary aquatic systems. This paper presents major toxic pollutants in pharmaceutical wastewaters and their fate in the aquatic environment, their sources, and origin in pharmaceutical industries. The evaluation of the traditional methods used for the removal of these emerging organic pollutants from aquatic matrices and pharmaceutical effluents is accomplished. New developments in electrochemical treatments for the remediation of toxic compounds in pharmaceutical wastewaters are also discussed.

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Section: Types and Sources Of Biopolymer Adsorbentsmentioning

confidence: 99%

A Review on Electrochemical Degradation and Biopolymer Adsorption Treatments for Toxic Compounds in Pharmaceutical Effluents

et al. 2020

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“…The influence of contact time on M SP B adsorption of Dfc ions was performed to obtain data on the overall uptake rate of adsorbate with time (Shirani et al 2018). The experiment was done using 40 mg L −1 Dfc concentration and 0.4 g L −1 dose of M SP B and studied from 1 to 300 min.…”

Section: Adsorption Kinetic Modelingmentioning

confidence: 99%

“…The other parts such as the leaves have been used as sorbent in various water treatment studies (Maina et al 2016). The seed husk has also been Responsible editor: Tito Roberto Cadaval Jr * Afrouz Bagheri bagha@uef.fi studied in the adsorption of diclofenac (Araujo et al 2018), acid black 1 and basic red 2, reactive dyes, heavy metals, atrazine, and nitrobenzene from solution (Buildings et al 1997;Akhtar et al 2007;de Carvalho et al 2015;Matouq et al 2015;Tavengwa et al 2016;Maina et al 2016;Souza et al 2016;Tavares et al 2017;Coldebella et al 2017;Khorsand et al 2017;Maria et al 2018;Shirani et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Modified biochar from Moringa seed powder for the removal of diclofenac from aqueous solution

Bagheri

Abu-Danso

Iqbal

et al. 2019

Environ Sci Pollut Res

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In this study, Moringa seed powder (M SP ) was pyrolyzed at 450°C to synthesize Moringa seed powder biochar (M SP B) and treated with phosphoric acid (H 3 PO 4 ) to synthesize phosphate-modified Moringa seed powder biochar (M SP B-HPO) as an adsorbent for the removal of diclofenac (Dfc) from aqueous solution. Fourier transform infrared (FTIR) analysis, energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), and pH point of zero charge (pH pzc ) were conducted to give more insight into the adsorbent's properties. The SEM analysis showed the transformations in the surface morphology from the parent material to the synthesized materials after the thermal and acid treatment. EDS analysis revealed the variation in the elemental composition of the materials prior to and after adsorption of Dfc ions. The FTIR analysis showed changes and peak intensities of functional groups involved in Dfc removal. The pH pzc showed the charge carried by M SP B-HPO in different pH conditions. Isotherm data best matched the Sips model, and the pseudo-second-order model best described the adsorption kinetics. The maximum adsorption capacity of M SP B-HPO by Sips model was found to be 100.876 mg g −1 .

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“…On the other hand, M. oleifera seeds were used intensively in water purification (Amagloh and Benang, 2009), river water disinfection (Ali et al, 2019), water treatment (Ali et al, 2009; Tan et al, 2013; Okuda and Ali,2018; Narender et al, 2019), wastewater treatment (Ramesh and Mekala, 2018) and as biosorbent for the removal of fluoride (Agnihotri et al, 2013), various heavy metals (Beltran and Sanchez-Martin, 2008;Limmatvapirat et al, 2015;Abbas, 2018) and the toxic pollutants (Shirani et al, 2018) from all water types.…”

Section: Introductionmentioning

confidence: 99%

The Removal of Ibuprofen Drugs Residues from Municipal Wastewater by Moringa Oleifera Seeds

Al-Kindi¹,

Al-Haidri²

2021

J. Ecol. Eng.

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Municipal wastewater may contain residues of different drugs causing severe chemical contamination of water bodies. However, the microbial degradation of Wastewater Treatment Plants (WWTP) may not eliminate such drug residues completely. The current work was designed to remove the Ibuprofen drug residues by using the Moringa Oleifera seeds. Various testing methods such as Brunauer, Emmett and Teller (BET), Transmission Electron Microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) were applied to assess the efficiency of such plant seeds in bioremoval of ibuprofen residues from municipal wastewater The batch reactor was used to find the optimum operating conditions using various parameters with different pH values, duration time, Ibuprofen concentration and various quantities of plant seeds. In the batch reactor, the operation conditions were: pH 7, duration time 150 min, Ibuprofen dose of 1000 mg/l, activated adsorbents and Moringa Oleifera seeds in the amount of 1000 mg/l. Moreover, the packed bed reactor was used to examine different parameters such as initial Ibuprofen concentration, flow rate and bed depth for 6 hours. It was found that the best conditions were 2 cm depth, and 25 l/hr flow rate. Meanwhile, the kinetic constants were studied by adsorption equilibrium with the isothermal Langmuir and Freundlich models. The best results were shown with the Freundlich isotherm, and the first pseudo order was more suitable for the removal of Ibuprofen by adsorbed activation of Moringa Oleifera seeds.

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Waste Moringa oleifera seed pods as green sorbent for efficient removal of toxic aquatic pollutants

Cited by 65 publications

References 67 publications

A Review on Electrochemical Degradation and Biopolymer Adsorption Treatments for Toxic Compounds in Pharmaceutical Effluents

A Review on Electrochemical Degradation and Biopolymer Adsorption Treatments for Toxic Compounds in Pharmaceutical Effluents

Modified biochar from Moringa seed powder for the removal of diclofenac from aqueous solution

The Removal of Ibuprofen Drugs Residues from Municipal Wastewater by Moringa Oleifera Seeds

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