Impact of dithiocarbamate-based polymeric additives on the performance of polyethersulfone membrane for the treatment of arsenic contaminated waters

2022 ◽  
Vol 158 ◽  
pp. 589-606
Author(s):  
Vahid Vatanpour ◽  
Ehsan Shokouhifar ◽  
Azim Ziyaei Halimehjani ◽  
Tao He
Keyword(s):  
Polyethersulfone Membrane ◽  
Polymeric Additives ◽  
Contaminated Waters

scholarly journals Effects of pre-ozonation in case of microfiltration of oil contaminated waters using polyethersulfone membrane at various filtration conditions

2017 ◽  
Vol 73 ◽  
pp. 409-414 ◽  
Author(s):  
Gábor Veréb ◽  
Mihály Zakar ◽  
Ildikó Kovács ◽  
Katalin Pappné Sziládi ◽  
Szabolcs Kertész ◽  
...  
Keyword(s):  
Polyethersulfone Membrane ◽  
Contaminated Waters

Effects of the polymeric additives on the stickies formation in recycled fibers based papermaking process

2017 ◽  
Vol 32 (4) ◽  
pp. 647-655 ◽  
Author(s):  
Rong Xu ◽  
Chengyun Wang ◽  
Shubin Wu ◽  
Kunting Chen
Keyword(s):  
Polymeric Additives ◽  
Recycled Fibers

Electrospun nanofibers prepared using polystyrene (PS) with polymeric additives for the determination of nicotine in cigarette mainstream smoke

2014 ◽  
Vol 6 (14) ◽  
pp. 5120-5126 ◽  
Author(s):  
Zhifeng Guo ◽  
Xiaoyang Wu ◽  
Jingjing Dong ◽  
Hiudan Su ◽  
Ru Cai
Keyword(s):  
Solid Phase Extraction ◽  
Extraction Efficiency ◽  
Solid Phase ◽  
Electrospun Nanofibers ◽  
Phase Extraction ◽  
Mainstream Smoke ◽  
Polymeric Additives ◽  
Cigarette Mainstream Smoke

The objective of this paper is to use electrospun nanofibers as the adsorbents in solid phase extraction (SPE) to improve the extraction efficiency.

LACTOSE-FERMENTING BACTERIA FROM THE INTESTINAL CONTENTS OF MARINE FISH

1933 ◽  
Vol 8 (1) ◽  
pp. 291-300 ◽  
Author(s):  
NORMAN E. GIBBONS
Keyword(s):  
Marine Fish ◽  
Marine Fishes ◽  
Soil Types ◽  
Intestinal Contents ◽  
Fermenting Bacteria ◽  
Relationship Of ◽  
The Relationship ◽  
Contaminated Waters

From 112 marine fishes examined for the presence of lactose-fermenting bacteria, 31 strains were isolated which produced acid and gas in this sugar and 3 which produced acid only.Ten strains belonged to the genus Aerobacter, 8 being Aer. aerogenes and 2 probably varieties of Aer. cloacae. Nine were soil types and the relationship of one was doubtful.Of 24 Escherichia types, 8 were faecal mammalian strains and one was doubtful. These belonged to the species Esch. coli, Esch. communior, Esch. grünthali and Bact. immobilis. One was found in a haddock taken 3 miles offshore; the others were found in fish taken in contaminated waters or near shore.Esch. coli, Esch. communior and Aer. aerogenes are not normal inhabitants of the intestinal tracts of marine fish.

ZnS nanoparticles as new additive for polyethersulfone membrane in humic acid filtration

2019 ◽  
Vol 79 ◽  
pp. 71-78 ◽  
Author(s):  
Jing Guo ◽  
Sovann Khan ◽  
So-Hye Cho ◽  
Jeonghwan Kim
Keyword(s):  
Humic Acid ◽  
Zns Nanoparticles ◽  
Polyethersulfone Membrane

scholarly journals Evaluation of Fe-Mg Binary Oxide for As (III) Adsorption—Synthesis, Characterization and Kinetic Modelling

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 805
Author(s):  
Saif Ullah Khan ◽  
Rumman Zaidi ◽  
Feroz Shaik ◽  
Izharul Haq Farooqi ◽  
Ameer Azam ◽  
...  
Keyword(s):  
Arsenic Removal ◽  
Kinetic Modelling ◽  
Arsenic Concentration ◽  
Experimental Studies ◽  
Precipitation Method ◽  
Arsenic Adsorption ◽  
Adsorbent Dosage ◽  
X Ray ◽  
Co Precipitation ◽  
Contaminated Waters

Nanotechnology has received much attention in treating contaminated waters. In the present study, a facile co-precipitation method was employed to synthesize a novel iron and magnesium based binary metal oxide using a stoichiometrically fixed amount of FeNO3.9H2O and MgNO3.6H2O in a proportion of molar concentration 1:1 and was later evaluated in removing As (III) from contaminated waters. Characterization of the prepared nanomaterial was done using X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy Dispersive X-Ray Analysis (EDAX) and ultraviolet–visible spectrophotometry (UV-VIS). Experimental studies on batch scale were carried out, examining the effect of varying initial concentrations of metal, adsorbent dosage, application time and initial pH on removal efficiency. Arsenic removal increased on increasing adsorbent dosage (0.1–1 g/L) but trend reversed on increasing initial arsenic concentration attaining qmax of 263.20 mg/g. Adsorption was quite efficient in pH range 4–8. Freundlich fitted better for adsorption isotherm along with following Pseudo-2nd order kinetics. The reusability and effect of co-existing ions on arsenic adsorption, namely SO42−, CO32− and PO43− were also explored with reusability in 1st and 2nd cycles attained adsorptive removal up to 77% and 64% respectively. The prepared nano-adsorbent showed promising results in terms of high arsenic uptake (qmax of 263.20 mg/g) along with facile and cost-effective synthesis. Thus, the co-precipitation technique used in this work is a simple one step procedure without any use of any precursor as compared to most of the other procedures used for synthesis.

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