Performance of an ultra-low-pressure reverse osmosis membrane (ULPROM) for separating heavy metal: effects of interference parameters

Ozaki, Hiroaki; Sharma, K.; Saktaywin, Wilasinee

doi:10.1016/s0011-9164(02)00329-6

Cited by 293 publications

(114 citation statements)

References 3 publications

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“…Because of its high toxicity, it is imperative to significantly reduce its discharge levels (Bianchi and Levis 1984). Many methods have been used for removal of heavy metals in wastewaters such as reverse osmosis (Ozaki et al 2002), ion exchange , membrane separation (Kozlowski and Walkowiak 2002;Shaalan et al 2001), chemical precipitation, and electrolysis (Tunali Akar et al 2009). Among these, the adsorption method is superior because of its higher efficiency and simple operation (Bailey et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Hexavalent chromium removal from aqueous solutions by using low-cost biological wastes: equilibrium and kinetic studies

Aliabadi

Khazaei

Fakhraee

et al. 2012

Int. J. Environ. Sci. Technol.

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Section: Introductionmentioning

confidence: 99%

Hexavalent chromium removal from aqueous solutions by using low-cost biological wastes: equilibrium and kinetic studies

Aliabadi

Khazaei

Fakhraee

et al. 2012

Int. J. Environ. Sci. Technol.

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“…The performance of an aromatic polyamide (ES20) ultra-low-pressure reverse osmosis membrane for separating divalent (Cu 2+ ), (Ni 2+ ) and hexavalent (Cr 6+ ) heavy metals from bulk solution was investigated. The rejection of heavy metals was found to be greater than 95% for tested membranes [12].…”

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confidence: 90%

Reverse Osmosis Removal of Heavy Metals from Wastewater Effluents Using Biowaste Materials Pretreatment

Thaçi¹,

Gashi²

2018

Pol. J. Environ. Stud.

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The rapid increase in industrial activities during the last decades has caused severe changes in the environment. This development has led to contamination of water resources with toxic contaminants such as heavy metals nutrient ions and dyes. Mining, mineral processing, and metallurgical operations (electroplating units, alloy manufacturing, etc.) generate a considerable amount of polluted water containing toxic heavy metals, which are almost persistent and non-degradable in nature, and which in turn cause adverse effects in the environment. Therefore, the treatment of these wastewaters becomes necessary before being discharged into the environment and river water streams, respectively. Several conventional methods (e.g., chemical precipitation, coagulation, sedimentation, adsorption, reduction, oxidation, solvent extraction, electrolytic extraction, evaporation, ion exchange, dialysis/electrodialysis, membrane processes, etc.) have been used to achieve effective and rapid removal of these environmental contaminants -particularly metal ions because of their toxic nature and high production cost, and limited or decreasing availability of metal deposits [1][2].However, some of these techniques have constrains on their application, such as the high operating cost, energy-intensive use hazardous chemicals, and Pol. J. Environ. Stud. Vol. 28, No. 1 (2019), 337-341 AbstractThe objective of this paper was to investigate the applicability of using biowaste materials prior to reverse osmosis treatment of water and wastewater effluents. The physico chemical properties of wheat bran, maize cob, and olive waste, and adsorption parameters such as metal concentration, adsorbent dose, contact time, and temperature of Cd(II) onto wheat bran are presented. The optimal parameters achieved in these experiment were used for sorptive removal of metal ions (Pb ) from synthetic aqueous solution as well as from wastewater effluents of the mining flotation process. At short pretreatment time, retentate of sufficient concentration was achieved with above biosorbents for further treatment. It is used as feed for reverse osmosis tests. The high removal efficiency of metal ions from synthetic as well as wastewater samples was obtained with low-pressure heterogeneous asymmetric reverse osmosis membranes almost completely by this process.

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“…Therefore, it is necessary to eliminate Cr (VI) from the environment in order to prevent the deleterious impact on ecosystem and public health. There are various treatment technologies available to remove the Cr (VI) from wastewater such as chemical precipitation [3], ion-exchange [4][5][6][7][8][9], membrane process as reverse osmosis, ultrafiltration and nanofiltration [10][11][12][13][14], flotation [15], electrocoagulation [16], solvent extraction [17], sedimentation [18], reduction [19], dialysis/electrodialysis [20], adsorption [21][22][23][24] and biosorption [25].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Chromium (Vi) Removal by Donnan Dialysis

Marzouk¹,

Dammak²,

Chaabane³

et al. 2013

AJAC

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The removal of chromium (VI) from aqueous solutions by Donnan dialysis has been investigated in this paper. In this process, two anion-exchange membranes (AEMs) were used: Selemion ® AMV and Neosepta ® AFN. The amount of chromium (VI) removed was determined in terms of the following parameters: initial concentration of chromium (VI), type of anion-exchange membrane, concentration of counter-ion and magnetic stirring rate. A 24 full factorial design analysis was performed to screen the parameters affecting the Cr (VI) removal efficiency. Using the experimental results, a linear mathematical model representing the influence of the different parameters as well as their interactions was obtained. Analysis of the variance (ANOVA), the F-test and the student's test shows that the type of anion-exchange membrane is the most significant parameter affecting the chromium (VI) removal. The statistical analysis of the experimental data assumes it to be a normal distribution.

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Performance of an ultra-low-pressure reverse osmosis membrane (ULPROM) for separating heavy metal: effects of interference parameters

Cited by 293 publications

References 3 publications

Hexavalent chromium removal from aqueous solutions by using low-cost biological wastes: equilibrium and kinetic studies

Hexavalent chromium removal from aqueous solutions by using low-cost biological wastes: equilibrium and kinetic studies

Reverse Osmosis Removal of Heavy Metals from Wastewater Effluents Using Biowaste Materials Pretreatment

Optimization of Chromium (Vi) Removal by Donnan Dialysis

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