Removal of heavy metals and pollutants by membrane adsorption techniques

Khulbe, K.C.; Matsuura, Takeshi

doi:10.1007/s13201-018-0661-6

Cited by 418 publications

(195 citation statements)

References 179 publications

(149 reference statements)

Supporting

Mentioning

189

Contrasting

Unclassified

Order By: Relevance

“…The concentration of Pb and Cd in filtered tap water samples did not exceed the permissible value in guidelines for drinking water quality set by Thai ministry of public health and WHO [18,19]. Khulbe and Matsuura [28] reported that membranes for membrane adsorption, which have the dual function of membrane filtration and adsorption, are very effective in removing trace amounts of pollutants, such as cationic heavy metals, anionic phosphates and nitrates. Al-Rashdi et al [29], reported the removal of some heavy metals including Cu, Cd, manganese (Mn), Pb and As from aqueous solutions using adsorption and nanofiltration membrane technologies.…”

Section: Discussionmentioning

confidence: 99%

Risk Assessment of Lead and Cadmium in Drinking Water for School use in Nakhon Si Thammarat Province, Thailand

Decharat

Pan-in

2020

Environ Anal Health Toxicol

View full text Add to dashboard Cite

The promotion of school hygiene is typically covered along with topics like food borne disease, water borne disease, hand washing with soap, waste management and clean drinking water. WHO/UNICEF [1] presented data that 31%, 29%, and 79% of schools lack basic water facilities, basic sanitation facilities and basic hand washing facilities, respectively. There are various categories of drinking water, including improved sources, such as piped water and boreholes, and unimproved sources, which include surface waters and unprotected drinking wells [1]. Quality of drinking water in primary schools is well recognised in its importance because adequate water intake not only presents a quality of health in children, but it may also have a positive impact on cognition of children [2-4]. The heavy metals in drinking water most often linked to human poisoning are lead (Pb), cadmium (Cd) and arsenic (As), which can be toxic even in low doses [5]. These studies indicate the potential for significant exposure to heavy metals to occur as a result of heavy metal contamination of school drinking water sources. Shotyk and Krachler [6] reported that water bottled in glass containers was contaminated with Pb due to leaching from the containers. Heavy metal concentrations are low when the water leaves the water supply, but the heavy metal concentrations may increase during transportation and storage in the distribution center [7]. Fertmann et al. [8] reported a concentration of Pb in tap water higher than the detection limit and showed significantly higher blood Pb levels. Badr et al. [9] found concentrations of chromium (Cr), Pb and iron (Fe) in drinking water that there were significantly higher in tap water samples compared to bottled water. In addition, blood creatinine and urea levels were positively correlated with Cr and Cd levels in subjects who were mainly drinking tap water. Filtration is a common way to obtain pure drinking water by removing particles and microorganisms based on size exclusion. Conventional water treatment systems were found, in general, while advanced technologies such as Actiflo® clarification sys

show abstract

Section: Discussionmentioning

confidence: 99%

Risk Assessment of Lead and Cadmium in Drinking Water for School use in Nakhon Si Thammarat Province, Thailand

Decharat

Pan-in

2020

Environ Anal Health Toxicol

View full text Add to dashboard Cite

show abstract

“…Due to Pb(II)'s high toxicity, the United States Environmental Protection Agency (USEPA) has set a very low tolerance limit of Pb(II) (0.015 mg/L) for drinking water [4]. Various techniques are used for the removal of heavy metals from water and wastewater, including chemical sedimentation [5], ion exchange [6], membrane [7], and adsorption [8][9][10][11]. Among them, adsorption is appealing owing to its simple application, low cost, and remarkable efficiency.…”

Section: Introductionmentioning

confidence: 99%

Uptake of Pb(II) Ions from Simulated Aqueous Solution via Nanochitosan

et al. 2019

View full text Add to dashboard Cite

In this work, nanochitosan (NC) was prepared through ionic gelation using low molecular weight chitosan and maleic acid (MA). The synthesized NC was characterized by atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). During preparation, the particle size of the material depended on parameters such as concentration of chitosan and pH of the aqueous solution. After controlling the mentioned parameters, NC smaller than 100 nm was prepared. The chitosan and prepared NC were employed for the adsorption of Pb(II) from an aqueous solution in the form of a batch system. Among the sorption parameters, pH showed the strongest effect on the sorption process and removal of the maximum number of Pb(II) ions was obtained at pH value of 6. Pseudo-first-order and pseudo-second-order models were used to track the kinetics of the adsorption process. Langmuir and Freundlich’s isotherms were subjected to the absorption data to evaluate absorption capacity. NC proved to be an excellent adsorbent with a remarkable capacity to eliminate Pb(II) ions from aqueous solutions at multiple concentrations. The NC also showed better performance with a comparatively easier preparation process than in other reported work.

show abstract

“…[2].Chromium above the maximum contaminant level in water causes a problem of headache, diarrhoea, nausea, vomiting, chronic, asthma, coughing etc. [3] [2].Wastewater from various industries containing heavy metal ions, which must be removed, before recycling or discharge directly in surface water, the conventional process are used for separation of heavy metal like chemical precipitation, ionexchange, adsorption or bioseparation. [3] [4].But conventionalprocesses have a significant disadvantage of incomplete removal, high energy requirement, production of toxic sludge.…”

Section: Introductionmentioning

confidence: 99%

“…[3] [2].Wastewater from various industries containing heavy metal ions, which must be removed, before recycling or discharge directly in surface water, the conventional process are used for separation of heavy metal like chemical precipitation, ionexchange, adsorption or bioseparation. [3] [4].But conventionalprocesses have a significant disadvantage of incomplete removal, high energy requirement, production of toxic sludge. [5]Nowadays, membrane separation process such as microfiltration, ultrafiltration, nanofiltration, reverse osmosis and electrodialysis are significantly used for separation of heavy metals [6] [7].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Separation Efficiency for Nano Filtration Membrane using Water-Soluble Polymer.

Bansod¹,

Bhutada²,

Barkade³

et al. 2019

IJRTE

View full text Add to dashboard Cite

In this study, an aqueous solution containing a mixture of heavy metal ion Cr(III) were treated by polymer enhanced Nanofiltration using polyethylene glycol as a binding agent polymer. The performance of PEG in removing heavy metal ion Cr (III) was compared with PEG and without PEG addition using polyamide Nano filtrationmembrane. The percentage rejection of heavy metal ions was studied under the different value of pH, metal ion concentration and flow rate. AtpH 10,percentage rejection of heavy metal ion was highest at around 99.2%,whereas,at 200ppm concentration and at 3(l/hm 2 )flow rate percentage rejection of heavy metal ion with PEG was highest 99.5%,it was found that PEG gave higher percentage rejection of Cr(III) ion than without the addition of PEG.

show abstract

Removal of heavy metals and pollutants by membrane adsorption techniques

Cited by 418 publications

References 179 publications

Risk Assessment of Lead and Cadmium in Drinking Water for School use in Nakhon Si Thammarat Province, Thailand

Risk Assessment of Lead and Cadmium in Drinking Water for School use in Nakhon Si Thammarat Province, Thailand

Uptake of Pb(II) Ions from Simulated Aqueous Solution via Nanochitosan

Enhancement of Separation Efficiency for Nano Filtration Membrane using Water-Soluble Polymer.

Contact Info

Product

Resources

About