Removal of Heavy Metal Ions in Water Using Modified Polyamide Thin Film Composite Membranes

Ngo, Thu Hong Anh; Tran, Dung Thi

doi:10.20319/mijst.2017.31.91103

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…Heavy metals can build up in soil environments and can transfer across the food chains, causing negative health impacts on human and animals. A number of studies have shown heavy metals as imperative environmental contaminants (Abbas et al 2010;Sobukola, Adeniran, Odedairo & Kajihausa, 2010;Kaur & Goyal, 2011;Asdeo & Loonker, 2011;Hu et al 2012;Kananke, Wansapala & Gunaratne, 2014, 2015Haneef &Akintug, 2016 andNgo &Tran, 2017). Through the atmospheric deposition or road runoff, metals are absorbed into the plant tissues of green leafy vegetables (GLV) which are cultivated and marketed along roadsides.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Bioaccumulation, Translocation and Distribution Patterns of Cadmium and Lead in Commonly Consumed Green Leafy Vegetables in Colombo District, Sri Lanka

Kananke

Wansapala

Gunaratne

2018

mijst

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Green Leafy Vegetables (GLV) are a key component of the Sri Lankan diet. However, GLV are identified as good heavy metal accumulators, which in turns causes potential health risks for consumers through food chain contaminations. The present study aimed to investigate the bioaccumulation, translocation and distribution patterns of cadmium (Cd) and lead (Pb) in five key Sri Lankan GLV ["Kankun" (Ipomoea aquatica), "Mukunuwenna (Alternanthera sessilis), "Thampala" (Amaranthus viridis), "Nivithi" (Basella alba) and "Kohila" (Lasia spinosa)] grown in Colombo District, Sri Lanka. The levels of Cd and Pb in different plant parts (roots, stems and leaves) and the soil underneath were determined using the inductively coupled plasma optical emission spectroscopy (ICP-OES) and the bioaccumulation and translocation factors of heavy metals from soil to different plants parts (roots, stems, leaves), were calculated to identify the hyper accumulative species.Irrespective of the species and the location, GLV showed the distribution pattern for Cd and Pb as: roots>stems>leaves. In all the analyzed GLV, roots have accumulated significantly higher concentrations (at P<0.05) of Cd and Pb compared with stems and leaves. Among the two heavy metals, Cd bioavailability was higher compared with Pb. Amaranthus viridis had the lowest capacity for metal enrichment. In contrast, Lasia spinosa showed the highest bioaccumulation factors for both elements and the accumulation factor obtained for Cd (1.04) was >1. Thus, Lasia spinosa has the potential to use in phytoextraction purposes in future, though it is not safe to consume as a day to day food item.

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Section: Introductionmentioning

confidence: 99%

Estimation of Bioaccumulation, Translocation and Distribution Patterns of Cadmium and Lead in Commonly Consumed Green Leafy Vegetables in Colombo District, Sri Lanka

Kananke

Wansapala

Gunaratne

2018

mijst

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“…Indeed, nearly 75% of the three million early deaths found in developing countries are water borne (Ali, 2012). For this reason the maintenance of public health through the treatment of water remains of high importance to policy makers around the world (Hong, 2017). As such the optimization of treatment processes as well as the ability to predict the water quality over time is a key part of decision-making processes in water treatment industries as it allows the provision of a sustainable supply of good quality water to the consumers.…”

Section: Introductionmentioning

confidence: 99%

Performance Efficiency Analysis of Water Treatment Plants by Using McDm and Neural Network Model

Saha

Choudhury

Majumder

2017

Mijst

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“…Composite membranes have recently attracted attention as each layer can be independently modified to achieve the desired membrane characteristics (Hong Anh Ngo, & Thi Tran, 2017). In particular, ceramic membranes remain one of the most promising technologies among membrane processes due to their superior performance, hydrophilicity, mechanical robustness, and high thermal and chemical stabilities.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Bactericidal Microfiltration Ceramic Membranes

Serhiienko

Dontsova

Vorobyova

2022

mijst

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Membrane technologies have become widely used in filtration and separation processes in chemical, oil, food, pharmaceutical, medical, environmental, textile industries, etc. Recently, there is a growing demand for the use of bactericidal membranes due to their effectiveness in neutralizing microorganisms. The aim of this work is to synthesize microfiltration ceramic membranes modified with silver nanoparticles to provide them with bactericidal properties. In this work, ceramic membranes are synthesized by dry pressing followed by sintering from natural raw materials of Ukrainian origin, namely: kaolin and saponite, as well as with the addition of silicon carbide, sodium silicate, and calcium carbonate. To provide ceramic membranes with bactericidal properties, they were modified with particles of silver. The synthesized ceramic membranes were characterized by X-ray diffraction and fluorescence analysis, and their bactericidal ability has been established. The ceramic filtration membranes after modification by silvers exhibited an inhibitory effect on the growth of Gram-positive (B. subtilis.) and Gram-negative (Escherichia coli) pathogens. Thus, the obtained bactericidal ceramic membranes are of great interest for their use for biofouling control.

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Removal of Heavy Metal Ions in Water Using Modified Polyamide Thin Film Composite Membranes

Abstract: Heavy metals in the wastewater

Cited by 5 publications

References 17 publications

Estimation of Bioaccumulation, Translocation and Distribution Patterns of Cadmium and Lead in Commonly Consumed Green Leafy Vegetables in Colombo District, Sri Lanka

Estimation of Bioaccumulation, Translocation and Distribution Patterns of Cadmium and Lead in Commonly Consumed Green Leafy Vegetables in Colombo District, Sri Lanka

Performance Efficiency Analysis of Water Treatment Plants by Using McDm and Neural Network Model

Synthesis of Bactericidal Microfiltration Ceramic Membranes

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