A study of the removal of heavy metals from aqueous solutions by Moringa oleifera seeds and amine-based ligand 1,4-bis[N,N-bis(2-picoyl)amino]butane

Obuseng, Veronica; Nareetsile, Florence; Kwaambwa, Habauka M.

doi:10.1016/j.aca.2012.01.054

Cited by 50 publications

(36 citation statements)

References 22 publications

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“…However, the efficiency of the sorbent can be increased by increasing the number of pores and the surface area. This is done by treating the sorbents with acids or activated with carbons [33,34]. The metal adsorption capacity is influenced strongly by the surface structures of carbon-oxygen and surface behavior of carbon [38].…”

Section: Application Of the Optimized Biosorption Methods Tomentioning

confidence: 99%

“…Most parts of these trees are edible and very beneficial to human beings and have a lot of applications. Essential oils and essential minerals are extracted from Morula kernel [31] while Moringa biomass has been used as coagulant agent in water purification [32], for heavy metal removal [33] and removal of organic pollutants from aqueous solutions [34]. However, some parts of these trees that are not edible are normally considered as waste material and often thrown away: for example, seed pods from Moringa and nut shells from Morula.…”

Section: Introductionmentioning

confidence: 99%

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Use ofMoringa oleifera(Moringa) Seed Pods andSclerocarya birrea(Morula) Nut Shells for Removal of Heavy Metals from Wastewater and Borehole Water

Maina

Obuseng

Nareetsile

2016

Journal of Chemistry

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Use of nonedible seed pods ofMoringa oleifera(Moringa) tree and nutshells ofSclerocarya birrea(Morula) tree for removal of selected metal ions (lead, cadmium, copper, manganese, iron, zinc, and magnesium) from wastewater and borehole water samples was investigated. Removal parameters such as contact time, pH, temperature, particle size, sorbent dose, and initial metal concentration were optimized. Determination of residual metal ions after employing sorbent was done using flame atomic absorption spectroscopy (FAAS). Using 200 ng synthetic metal ion mixture in 50 mL of water sample, the optimized parameters for Moringa seed pods were 60 min contact time, 1.0 g of sorbent dose, pH 8, 100 μm sorbent particle size, and extraction temp 35°C. While using Morula nutshells, the optimized conditions were 120 min contact time, 2.0 g sorbent dose, pH 8, 100 μm sorbent particle size, and extraction temp of 35°C. The removal efficiency of acid treated sorbents was compared to that of untreated sorbents and it was found to be higher for acid treated sorbents. These nonedible plant parts for Morula and Moringa plants are proposed as a cheap, simple, and an effective alternative for purification of water contaminated with heavy metals.

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Section: Application Of the Optimized Biosorption Methods Tomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Use ofMoringa oleifera(Moringa) Seed Pods andSclerocarya birrea(Morula) Nut Shells for Removal of Heavy Metals from Wastewater and Borehole Water

Maina

Obuseng

Nareetsile

2016

Journal of Chemistry

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“…The results indicated that among different natural coagulants, the seeds of M. oleifera were most efficient for turbidity removal [8]. M. oleifera seed biomass was also studied to perform biosorption of metals followed as decreasing order of removal of Cu, Cd, Ni, and Mn [17]. In another study by Sharma, Cd removal 85% by shelled M. oleifera seed powder from laboratory scale aqueous solution [18].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

A comparative study of synthetic and natural coagulants for silver nanoparticles removal from wastewater

Ahmed

Bhatti

Maqbool

et al. 2016

Desalination and Water Treatment

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A B S T R A C TUse of silver nanoparticles is increasing in different packaging material as disinfectant to protect food and pharmaceutical products. Its use has raised the contamination risk of fresh water and human exposure can cause serious problems. The coagulation/flocculation process can be an attractive option for silver nanoparticles removal at small-scale treatment just after its use. Four coagulants, aluminum sulfate, ferric chloride, Ocimum basilicum, and Hibiscus esculentus (synthetic and natural) were applied. For coagulation/flocculation activity, a series of jar test experiments were conducted to treat silver nanoparticles at concentration of 1 mg L −1 from wastewater. H. esculentus efficiently removed silver nanoparticles (98.7%) from aqueous solution at a dose of 150 mg L −1 , whereas at same coagulant dose, ferric chloride, O. basilicum, and aluminum sulfate successfully removed silver nanoparticles at 96, 69, and 50%, respectively. No broad change in pH was observed and it remained between 6.5 and 7.5 during all the experiments at room temperature.

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“…Even at low concentrations, these heavy metals can be toxic to organisms, including humans (Obuseng et al, 2012). Conventional methods used to remove heavy metal ions from wastewaters includes: ultra-filtration, reverse osmosis, ion exchange, solvent extraction, sedimentation and chemical precipitation (Obuseng et al, 2012). However, most of these methods has some disadvantages such as incomplete metal removal and Miranda, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…There are mainly 59 elements of heavy metal where cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb) and zinc (Zn) are considered highly toxic (Vikashni et al, 2012). Even at low concentrations, these heavy metals can be toxic to organisms, including humans (Obuseng et al, 2012). Conventional methods used to remove heavy metal ions from wastewaters includes: ultra-filtration, reverse osmosis, ion exchange, solvent extraction, sedimentation and chemical precipitation (Obuseng et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Heavy Metals (Fe, Cu, and Cr) Removal from Wastewater by Moringa Oleifera Press Cake

Ali

Seng

2018

MATEC Web of Conferences

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Abstract. The consumption of water nowadays is increasing and the wastewater from variety of industry and domestic are increasing as well. If this wastewater is being untreated, it will be wasted and the chemicals inside the water especially heavy metal are harmful to the living organism. There are few conventional method used to treat the wastewater but most of them are costly, hence, natural coagulant is introduced in this study. One of the multipurpose tree Moringa oleifera, (MO) which is environmental friendly and low cost become a choice for removal of heavy metal from wastewater. The Moringa oleifera press cake (MOPC) are able to remove the heavy metal but the removal efficiency for different metals need to be investigated. Therefore, experiment on heavy metal removal by Moringa oleifera press cake was conducted. The wastewater samples and MOPC were collected from Balok River, Kuantan and Mitomasa Sdn. Bhd, Kuala Lumpur respectively. MOPC was immersed in distilled water to remove the oil and different concentration of MOPC solution were made. Jar test were carried out with different concentration of MOPC solution. The initial and final heavy metal (Fe, Cu, and Cr) concentration were measured by Atomic Absorption Spectrometer and the removal percentage was calculated. The MOPC removed 69.99% Fe, 88.86 % Cu and 93.73% Cr at optimum concentration of 10000 ppm, 5000 ppm and 15000 ppm, respectively. The MOPC also reduced 34.94% of COD and 81.6 % of turbidity. However, BOD of wastewater increased from 9.0 ppm to 18.3 ppm. The pH values was not changed with the addition of MOPC. The removal of heavy metal was increased proportionally with MOPC concentration until optimum removal was obtained.

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A study of the removal of heavy metals from aqueous solutions by Moringa oleifera seeds and amine-based ligand 1,4-bis[N,N-bis(2-picoyl)amino]butane

Cited by 50 publications

References 22 publications

Use ofMoringa oleifera(Moringa) Seed Pods andSclerocarya birrea(Morula) Nut Shells for Removal of Heavy Metals from Wastewater and Borehole Water

Use ofMoringa oleifera(Moringa) Seed Pods andSclerocarya birrea(Morula) Nut Shells for Removal of Heavy Metals from Wastewater and Borehole Water

A comparative study of synthetic and natural coagulants for silver nanoparticles removal from wastewater

Heavy Metals (Fe, Cu, and Cr) Removal from Wastewater by Moringa Oleifera Press Cake

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