Sorption potential of Moringa oleifera pods for the removal of organic pollutants from aqueous solutions

Availability of clean water for various activities is a global challenge. Moringa oleifera (MO) seed protein extract has been identified as a natural coagulant for wastewater treatment. The mechanistic understanding...

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Adsorption of Organic Pollutants from Aqueous Solutions on Cereal Ashes

Journal of Chemical & Engineering Data ◽

10.1021/je800532p ◽

2008 ◽

Vol 53 (11) ◽

pp. 2707-2709 ◽

Cited By ~ 11

Author(s):

M. Ghiaci ◽

M. Arshadi ◽

M. E. Sedaghat ◽

R. J. Kalbasi ◽

A. Gil

Keyword(s):

Aqueous Solutions ◽

Organic Pollutants

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Sorption potential of rice husk for the removal of 2,4-dichlorophenol from aqueous solutions: Kinetic and thermodynamic investigations

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2005.07.025 ◽

2006 ◽

Vol 128 (1) ◽

pp. 44-52 ◽

Cited By ~ 78

Author(s):

Mubeena Akhtar ◽

M.I. Bhanger ◽

Shahid Iqbal ◽

S. Moosa Hasany

Keyword(s):

Aqueous Solutions ◽

Rice Husk ◽

Sorption Potential

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A methylation-inspired mesoporous coordination polymer for identification and removal of organic pollutants in aqueous solutions

Journal of Materials Chemistry B ◽

10.1039/d0tb02389b ◽

2021 ◽

Author(s):

Zhonghui Chen ◽

Ziyu Lv ◽

Zirong Lin ◽

Jun Chen ◽

Yifang Zhang ◽

...

Keyword(s):

Coordination Polymer ◽

Aqueous Solutions ◽

Organic Pollutants ◽

Interfacial Chemistry ◽

Structure Enhancement

Tuning the interfacial chemistry of a metal–biomolecule coordination hybrid via bio-inspired methylation for structure enhancement and selective hazard adsorption/identification.

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Polyoxometallates as effective photocatalysts in water purification from pesticides

International Journal of Photoenergy ◽

10.1155/s1110662x04000297 ◽

2004 ◽

Vol 6 (4) ◽

pp. 227-231 ◽

Cited By ~ 23

Author(s):

E. Gkika ◽

P. Kormali ◽

S. Antonaraki ◽

D. Dimoticali ◽

E. Papaconstantinou ◽

...

Keyword(s):

Photocatalytic Activity ◽

Metal Oxide ◽

Aqueous Solutions ◽

Organic Pollutants ◽

Water Purification ◽

Inorganic Anions ◽

Degradation Mechanisms ◽

Metal Oxide Clusters

Polyoxometallates (POM), i.e., metal oxide clusters of mainly tungsten are effective homogeneous photocatalysts for the mineralization of organic pollutants. POM are, at least, as effective as the well studiedTiO2.OH⋅radicals formed by the reaction of the photo-excited polyoxometallates withH2O, appear to play a key role in the process. In this study, the photocatalytic activity of POM have been tested on some diversified pesticides of interest such as lindane, bentazone and fenitrothion to determine the feasibility of decontamination of aqueous solutions from these pollutants. The results show that aqueous solutions containing the above pesticides, upon photolysis in the presence of polyoxotungstates undergo effective degradation toCO2,H2Oand the corresponding inorganic anions. The intermediates identified give rise to complicated degradation mechanisms prior to mineralization. The characteristic reactions that take place consist of hydroxylation, H-abstraction, dehalogenation, denitration, desulfurization, breaking of the C-C bond etc.

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Removal of Acid Black 1 and Basic Red 2 from aqueous solutions by electrocoagulation/Moringa oleifera seed adsorption coupling in a batch system

Water Science & Technology ◽

10.2166/wst.2015.196 ◽

2015 ◽

Vol 72 (2) ◽

pp. 203-213 ◽

Cited By ~ 3

Author(s):

Helder Pereira de Carvalho ◽

Jiguo Huang ◽

Jiaheng Ni ◽

Meixia Zhao ◽

Xinyu Yang ◽

...

Keyword(s):

Energy Consumption ◽

Aqueous Solutions ◽

Contact Time ◽

Energy Demand ◽

Moringa Oleifera ◽

Stainless Steel Electrode ◽

Steel Electrode ◽

Coupling Process ◽

Short Contact Time ◽

Unit Energy

The removal of Acid Black 1 (AB1) and Basic Red 2 (BR2) from aqueous solutions via an electrocoagulation (EC)/Moringa oleifera seeds (MOS) adsorption coupling process by using aluminum and stainless steel electrode in a batch reactor is described in this study. The influences of the operational parameters, i.e. current density, MOS dosage, and dye initial concentration, on degree of color removal were studied, and the unit energy demand, the unit electrode material demand, and the charge loading were calculated and discussed. The amounts of adsorbent and energy consumption were considered as main criteria of process evaluation, and ideal conditions were chosen. The addition of an appropriate MOS dosage (0.6 g/L for AB1 and 5 g/L for BR2) resulted in faster decolorization of dyes especially at lower current densities and was simultaneously accompanied by a significant reduction in contact time compared to the conventional simple EC process. The coupling process achieved degree of removals above 99.3% and 94% for AB1 and BR2, respectively. The EC/MOS coupling technique could be recommended to replace the conventional simple EC because of its high degree of removal, short contact time, and low energy consumption.

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