Application of nanofiltration for removal of pesticides, nitrate and hardness from ground water: rejection properties and economic evaluation

Bruggen, Bart Van der; Everaert, Kim; Wilms, D.; Vandecasteele, Carlo

doi:10.1016/s0376-7388(01)00517-8

Cited by 266 publications

(102 citation statements)

References 9 publications

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“…This increased retention complies with the molar mass of the carbamates -carbofuran (221.26 g mol ). The same behavior was observed by Kosutic and Kunst (2002), Berg et al (1997), Van Der Bruggen et al (2001), Chen , Taylo, Mulford, and Norris (2004), Plakas and Karabelas (2011) and , who concluded that one of the factors that influence in removal efficiency of pesticides by nanofiltration membranes is the molar mass and other factors such as the pore size of the membrane, the space between the polymer chains or polymer constituents of membranes.…”

Section: Removal Of the Carbamates In Distilled Watersupporting

confidence: 78%

“…Berg, Hagmeyer, and Gimbel (1997) discussed the influence of physicochemical properties on nanofiltration process in a study, where the chemical structure was related to the removal efficiency by the membrane. Van Der Bruggen, Everaert, Wilms, and Vandecasteele (2001) concluded that the main mechanisms involved in pesticides removal by nanofiltration are the molecule size and the dipole moment. Kosutic and Kunst (2002) showed the importance of the size of the molecule and of the membrane pore, as well as the physicochemical effects (regarding both physical and chemical properties) in the process on pesticides removal by nanofiltration.…”

Section: Carbamates Used In the Experimentsmentioning

confidence: 99%

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<b>Removal of carbamates in drinking water by nanofiltration in tangential flow

et al. 2018

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ABSTRACT. Membranes processes, in particular, nanofiltration and reverse osmosis, represent an important alternative for treatment of contaminated waters. In this context, the present study aims to evaluate the efficiency of the removal of the carbamates: carbaryl, carbofuran and methomyl at different concentrations from water fortified with these compounds. A pilot nanofiltration unit, operating in the tangential flow, provided with a membrane in the spiral configuration, Model NF90-4040 (Dow Filmtec Membranes) was used. Two types of fortified water with carbamates were performed: distilled water and pond water. Nanofiltration tests with distilled water were performed in a closed system, in order to maintain a constant concentration of carbamates in the feed water. In this case, the efficiency of carbamates removal was greater or equal than 89, 100 and 74% for carbaryl, carbofuran, and methomyl, respectively. When using pond water, the removal of carbamates was higher or equal: 98, 100 and 90% for carbaryl, carbofuran, and methomyl, respectively. The results indicate that by nanofiltration, it is possible to obtain drinking water from the contaminated water with carbamates, according to international guidelines.Keywords: Nanofiltration, drinking water, pesticides, carbamates.Remoção de carbamatos de água potável com nanofiltração por fluxo tangencial RESUMO. Os processos de tratamento por membranas, em particular, nanofiltração e osmose inversa, representam uma alternativa importante para o tratamento de águas contaminadas. Neste contexto, o presente estudo tem como objetivo avaliar a eficiência da remoção dos carbamatos: carbaril, carbofurano e metomil em diferentes concentrações. Usou-se uma unidade de nanofiltração piloto, operando em fluxo tangencial, fornecida com uma membrana na configuração espiral, modelo NF90-4040 (Dow membranas Filmtec). Foram realizados ensaios com dois tipos de água fortificada com carbamatos: água destilada e água da lagoa. Testes com a nanofiltração com água destilada foram realizados em um sistema fechado, a fim de manter a concentração constante de carbamatos em água de alimentação. Neste caso, a eficiência de remoção de carbamatos foi maior ou igual a 89, 100 e 74% para o carbaril, carbofurano, e metomil, respectivamente. Quando se utilizou a água da lagoa, a remoção de carbamatos foi igual ou superior: 98, 100 e 90% para o carbaril, carbofurano, e metomil, respectivamente. Os resultados indicam que por nanofiltração, é possível obter água potável a partir da água contaminada com carbamatos, de acordo com as directrizes internacionais.Palavras-chave: Nanofiltração, água potável, pesticidas, carbamatos.

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Section: Removal Of the Carbamates In Distilled Watersupporting

confidence: 78%

Section: Carbamates Used In the Experimentsmentioning

confidence: 99%

<b>Removal of carbamates in drinking water by nanofiltration in tangential flow

et al. 2018

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“…The treatment of pesticides by membrane processes such as nanofiltration (NF) and RO has been widely reported [11][12][13][14]. Two mechanisms for pesticide adsorption to membranes have been suggested: hydrophobic interaction between pesticide and membrane surface [13] and hydrogen bonding between pesticide functional groups and membrane active layer [12].…”

mentioning

confidence: 99%

Sorption of pesticide endosulfan by electrodialysis membranes

Banasiak

Bruggen

Schäfer

2011

Chemical Engineering Journal

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Endosulfan (ES) is a micropollutant found in reverse osmosis concentrates from water reuse applications. Electrodialysis (ED) can remove and recover charged solutes from such concentrates.While polar compounds cannot normally be removed, their fate in ED is important as they can contribute to membrane fouling/poisoning and be released during cleaning. High adsorption of ES to ED membranes was observed. Consequently, the influence of solution pH and presence of humic acid (HA) on sorption mechanisms of ES to ion-exchange membranes during batch sorption isotherm and ED experiments were investigated systematically. ES-membrane partition coefficients * Current address: Faculty of Engineering, University of Wollongong, Wollongong NSW 2522, Australia 2 (log K AEM/CEM ) quantified through sorption isotherm experiments suggested that ES sorption was resultant of membrane catalysed ES degradation, hydrogen bonding and cation-π interactions between ES and membrane functional groups. ES sorption at pH 7 (550 µg/cm 3 ) was greater than sorption at pH 11 (306 µg/cm 3 ) due to alkaline hydrolysed ES and resultant decrease in bonding capacity with the membranes at high pH. The presence of HA reduced sorption at pH 7 (471 µg/cm 3 ) and 11 (307 µg/cm 3 ) due to HA competitive sorption. Partial membrane desorption was noted in isotherm (≤ 20%) desorption experiments and was dependent on the initial mass sorbed, solvent pH and resultant membrane interactions.

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“…[3][4][5][6] Recently, biological treatment processes have been widely used to remove nitrates from industrial wastewater. [7][8][9] Also, several other techniques, such as ion exchange, reverse osmosis, nanofiltration, electrodialysis and chemical precipitation, 2,[10][11][12][13][14] are available for both wastewater and drinking water treatment. However, the utilization of these physical/chemical processes has been limited due to their poor selectivity, expensive operation, and subsequent disposal problem of the generated nitrate waste brine.…”

Section: Introductionmentioning

confidence: 99%

Influence of Fe3+ Ions on Nitrate Removal by Autotrophic Denitrification Using Thiobacillus denitrificans

Blažková¹

2017

Chem.Biochem.Eng.Q.

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The sulphur-based autotrophic denitrification process utilizing Thiobacillus denitrificans was studied experimentally as an alternative method of removing nitrates from industrial wastewater. The objective of the work was to examine the effect of ferric iron addition to the reaction mixture and determine optimal dosage for specific conditions. All experiments were carried out in anoxic batch bioreactor, and elemental sulphur was used as an electron donor. Compared to the control operation without ferric iron addition, significant increases in nitrates removal were demonstrated for the concentration of ferric iron equal to 0.1 mg L -1 . However, under these conditions, increased nitrite content was detected in the reaction mixture which exceeds the limits for drinking water.

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Application of nanofiltration for removal of pesticides, nitrate and hardness from ground water: rejection properties and economic evaluation

Cited by 266 publications

References 9 publications

<b>Removal of carbamates in drinking water by nanofiltration in tangential flow

<b>Removal of carbamates in drinking water by nanofiltration in tangential flow

Sorption of pesticide endosulfan by electrodialysis membranes

Influence of Fe3+ Ions on Nitrate Removal by Autotrophic Denitrification Using Thiobacillus denitrificans

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