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

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.

Trace metals in contaminated waters

1981 ◽  
Vol 15 (4) ◽  
pp. 396-403 ◽  
Author(s):  
Garrison. Sposito
Keyword(s):  
Trace Metals ◽  
Contaminated Waters

Degradation of diazinon contaminated waters by ionizing radiation

2007 ◽  
Vol 76 (8-9) ◽  
pp. 1474-1479 ◽  
Author(s):  
A.A. Basfar ◽  
K.A. Mohamed ◽  
A.J. Al-Abduly ◽  
T.S. Al-Kuraiji ◽  
A.A. Al-Shahrani
Keyword(s):  
Ionizing Radiation ◽  
Contaminated Waters

scholarly journals Waste-based alternative adsorbents for the remediation of pharmaceutical contaminated waters: Has a step forward already been taken?

2018 ◽  
Vol 250 ◽  
pp. 888-901 ◽  
Author(s):  
Carla Patrícia Silva ◽  
Guilaine Jaria ◽  
Marta Otero ◽  
Valdemar I. Esteves ◽  
Vânia Calisto
Keyword(s):  
Contaminated Waters ◽  
Alternative Adsorbents

Graphene oxide functionalized polyethersulfone membrane to reduce organic fouling

2016 ◽  
Vol 514 ◽  
pp. 518-526 ◽  
Author(s):  
Efosa Igbinigun ◽  
Yaolin Fennell ◽  
Ramamoorthy Malaisamy ◽  
Kimberly L. Jones ◽  
Vernon Morris
Keyword(s):  
Graphene Oxide ◽  
Polyethersulfone Membrane ◽  
Organic Fouling
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