A novel ultrafiltration grade nickel iron oxide doped hollow fiber mixed matrix membrane: Spinning, characterization and application in heavy metal removal

Mondal, Mrinmoy; Dutta, Madhurima; De, Sirshendu

doi:10.1016/j.seppur.2017.07.013

Cited by 67 publications

(21 citation statements)

References 45 publications

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“…The α value was also measured (α= 1.68) according to Eq. (2): Α = 2 n/4 = 2 3/4 = 1.68 (2) where n represents the number of independent variables. Water flux (L/m 2 h or LMH) and chromium removal efficiency (%) were considered as the dependent variables (responses).…”

Section: Experimental Designmentioning

confidence: 99%

“…In many countries, especially developing countries, significant amounts of heavy metals enter the environment through industrial activities either directly or indirectly (1,2). The most common heavy metals in industrial wastewater include arsenic, chromium, lead, cadmium, copper, nickel, and zinc, which are hazardous to human and environmental health (3)(4)(5).…”

Section: Introductionmentioning

confidence: 99%

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Chromium removal and water recycling from electroplating wastewater through direct osmosis: Modeling and optimization by response surface methodology

Naghdali

Sahebi

Ghanbari

et al. 2019

Environ Health Eng Manag

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Background: Considering the carcinogenic effects of heavy metals, such as chromium, it is essential to remove these elements from water and wastewater. Direct osmosis is a new membrane technology, which can be a proper alternative to conventional chromium removal processes. Methods: The wastewater samples were collected from an electroplating unit, located in Alborz industrial city, Qazvin, Iran. Magnesium chloride was used as the draw solution, and a semipermeable membrane (Aquaporin) was used in this study. The experiments were designed, using response surface methodology (RSM) and central composite design (CCD) with draw solution concentration (0.5- 1.5 M), feed solution concentration (4-12 mg/L), and experiment time (30-90 minutes) as variable factors. The chromium concentration and water flux were also measured, based on atomic absorption spectrophotometry and water flux equation, respectively. Results: Direct osmosis was highly efficient in chromium removal and water recycling. Water flux and chromium removal efficiency were 15.6 LMH and 85.58%, respectively, under optimal conditions (draw solution = 1.27 mol/L, feed solution = 4 mg/L, and experiment time = 90 min). In terms of validity, the results predicted by the quadratic polynomial model were in good agreement with the responses reported in the laboratory. Conclusion: In direct osmosis, the use of magnesium chloride as the draw solution resulted in the acceptable chromium removal from electroplating wastewater. Using this method, chromium concentration in wastewater reduced to a level lower than the discharge standards, established by Iran’s Department of Environment.

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Section: Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Chromium removal and water recycling from electroplating wastewater through direct osmosis: Modeling and optimization by response surface methodology

Naghdali

Sahebi

Ghanbari

et al. 2019

Environ Health Eng Manag

View full text Add to dashboard Cite

show abstract

“…Membrane-based filtration technologies like reverse osmosis (RO) and nanofiltration (NF) have some advantages like high efficiency and ease of use [13], and have been extensively applied for the removal of heavy metals. In spite of the high efficiency Zohreh Naghdali of RO and NF in heavy metal rejection, they often have to cope with membrane fouling and high hydraulic pressure [14,15].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Forward Osmosis Process Using Aquaporin Membranes in Chromium Removal

et al. 2019

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Due to the lack of affordable and feasible wastewater treatment technologies, various industries in developing countries are discharging chromium (Cr) without meeting the environmental standards. Here, the aim was to employ forward osmosis (FO) using aquaporins (AQP)-based biomimetic membranes and optimize the Cr rejection through response surface methodology (RSM). The initial concentration of draw solution, feed solution, and time was selected as independent variables in order to optimize Cr rejection and water flux. A high Cr rejection efficiency and water flux were achieved under the optimal conditions. These results revealed that the FO process applying an AQP membrane beside the RSM could be considered to treat wastewaters containing heavy metals.

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“…Thus, the idea of membranes having both polymeric substrate as well as inorganic filler came in existence, which can overcome the above-mentioned limitations to a large extent. There are different studies having various fillers like Fe 3 O 4 nanoparticles (Alam et al 2013;Chan et al 2015;Ghaemi et al 2015;Bagheripour et al 2016;Mondal et al 2017), oxidized multiwalled nanotubes (Yin et al 2013;Celik et al 2011a, b), TiO 2 nanoparticles (Luo et al 2005;Rahimpour et al 2012;Esfahani et al 2015;Mbuli et al 2018;Farahani and Vatanpour 2018), functionalized MWCNT (Qiu et al 2009;Liu et al 2018;Benally et al 2018;Ho et al 2017;Lee et al 2016), silver nanoparticles (Taurozzi et al 2008;Zhang et al 2012;Sonawane et al 2017), modified silica nanoparticle (Farahani and Vatanpour 2018;Huang et al 2017;Martín et al 2016), chitosan/zinc oxide nanoparticles (Munnawar et al 2017;Ahmad et al 2017;Elizalde et al 2018), beta cyclodextrin-polyurethane (Adams et al 2014), graphene oxide (Ho et al 2017;Chai et al 2017;Karim et al 2017;Mukherjee et al 2016;Karkooti et al 2018), manganese oxide and alumina nanoparticles (Delavara et al 2017;Gohari et al 2014), zeolites (Liu et al 2014;Grabczyk et al 2017;Amiri et al 2017), attapulgite…”

Section: Introductionmentioning

confidence: 99%

“…However, membrane-based separations of these metals are becoming most efficient because of the cost-effectiveness, lesser energy consumption, thermal and mechanical stability, large surface area, and better selectivity (Delavara et al 2017). Different studies are there in which mixed-matrix membranes are employed for the removal of heavy metals (Chan et al 2015;Ghaemi et al 2015;Mondal et al 2017;Mbuli et al 2018;Delavara et al 2017;Hosseini et al 2017;Gupta et al 2015;Shah and Murthy 2013). However, there is no correlation between the membrane performance and the type of filler or the morphology.…”

Section: Introductionmentioning

confidence: 99%

Understanding the morphology of MWCNT/PES mixed-matrix membranes using SANS: interpretation and rejection performance

et al. 2019

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We describe the relationship between the morphology and rejection performance by the mixed-matrix membranes as a unique class of high water flux nanofiltration membranes comprising polyethersulfone/functionalized multiwalled carbon nanotubes (PES/f-MWCNTs). These membranes contain aligned MWCNTs uniformly distributed inside a PES matrix prepared using conventional phase-inversion technique. The small-angle neutron scattering analysis confirmed the high porosity and uniformity among of the pores of CNTs in the membranes. The frictionless water transport from vertically oriented f-MWCNTs were verified to facilitate remarkable enhancement in the water flux through the membranes. The water transportation speed, as well as rejection, of selected heavy metals increases nearly about 3 times and 2-3.5 times, respectively, than the pristine PES membrane, depending upon CNTs loading. Low working pressure and good retention properties make these membranes to be an ideal for the application of highly efficient filtration units.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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A novel ultrafiltration grade nickel iron oxide doped hollow fiber mixed matrix membrane: Spinning, characterization and application in heavy metal removal

Cited by 67 publications

References 45 publications

Chromium removal and water recycling from electroplating wastewater through direct osmosis: Modeling and optimization by response surface methodology

Chromium removal and water recycling from electroplating wastewater through direct osmosis: Modeling and optimization by response surface methodology

Optimization of the Forward Osmosis Process Using Aquaporin Membranes in Chromium Removal

Understanding the morphology of MWCNT/PES mixed-matrix membranes using SANS: interpretation and rejection performance

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