Magnetic Nanofibers for Contaminants’ Removal from Water

2021 ◽  
pp. 295-312
Author(s):  
Andrei V. Igansi ◽  
Bruna S. Farias ◽  
Luiz A. A. Pinto ◽  
Tito R. S. Cadaval
Keyword(s):  
Contaminants Removal ◽  
Magnetic Nanofibers

Effect of operating factors on the contaminants removal of a soil filter: multi-soil-layering system

2015 ◽  
Vol 74 (3) ◽  
pp. 2679-2686 ◽  
Author(s):  
Yidong Guan ◽  
Yuan Zhang ◽  
Chun-Ni Zhong ◽  
Xiao-Feng Huang ◽  
Jie Fu ◽  
...  
Keyword(s):  
Soil Layering ◽  
Contaminants Removal

Insights of emerging contaminants removal in real water matrices by CWPO using a magnetic catalyst

2021 ◽  
Vol 9 (5) ◽  
pp. 106321
Author(s):  
Y. Huaccallo-Aguilar ◽  
S. Álvarez-Torrellas ◽  
M.V. Gil ◽  
M. Larriba ◽  
J. García
Keyword(s):  
Emerging Contaminants ◽  
Magnetic Catalyst ◽  
Contaminants Removal

Numerical Prediction of Contaminant Removal from Cavity in Horizontal Channel by Constrained Interpolated Profile Method

2014 ◽  
Vol 695 ◽  
pp. 384-388
Author(s):  
Nor Azwadi Che Sidik ◽  
A.S. Ahmad Sofianuddin ◽  
K.Y. Ahmat Rajab
Keyword(s):  
Reynolds Number ◽  
Aspect Ratio ◽  
Removal Rate ◽  
Contaminant Removal ◽  
Square Cavity ◽  
Profile Method ◽  
Aspect Ratios ◽  
Contaminants Removal ◽  
Parabolic Flow ◽  
High Removal Rate

In this paper, Constrained Interpolated Profile Method (CIP) was used to simulate contaminants removal from square cavity in channel flow. Predictions were conducted for the range of aspect ratios from 0.25 to 4.0. The inlet parabolic flow with various Reynolds number from 50 to 1000 was used for the whole presentation with the same properties of contaminants and fluid. The obtained results indicated that the percentage of removal increased at high aspect ratio of cavity and higher Reynolds number of flow but it shows more significant changes as increasing aspect ratio rather than increasing Reynolds number. High removal rate was found at the beginning of the removal process.

scholarly journals Evaluation of contaminants removal by waste stabilization ponds: A case study of Siloam WSPs in Vhembe District, South Africa

Heliyon ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. e06207
Author(s):  
Joshua N. Edokpayi ◽  
John O. Odiyo ◽  
Oluwaseun E. Popoola ◽  
Titus A.M. Msagati
Keyword(s):  
South Africa ◽  
Waste Stabilization Ponds ◽  
Stabilization Ponds ◽  
Waste Stabilization ◽  
Contaminants Removal ◽  
Vhembe District

scholarly journals Post-consumer PET Bottle Recycling: Chemical Dose Optimization

2020 ◽  
Vol 01 (03) ◽  
pp. 70-75
Author(s):  
Md. Shahadat Hossain ◽  
Md Anisur Rahman
Keyword(s):  
Caustic Soda ◽  
Fossil Fuels ◽  
Lower Cost ◽  
Nonrenewable Resources ◽  
Mechanical Recycling ◽  
Pet Bottles ◽  
Cleaning Solution ◽  
Colorimetric Study ◽  
Contaminants Removal ◽  
Optimum Chemical

Polyethylene terephthalate (PET) bottles are being used in our daily life and consequently go to the landfills after their use. Additionally, virgin PET resins are produced from nonrenewable resources, such as fossil fuels, whose reserves are depleting continuously. Therefore, to maintain ecological and environmental balances as well as for sustainable development, post-consumer PET (pcrPET) bottles should be recycled. Among many recycling processes, mechanical recycling of pcrPET is attractive due to lower cost involvement. One of the most crucial and important processes of mechanical recycling is hot washing for contaminants removal. Hot washing uses a cleaning solution made of caustic soda (NaOH) and detergent at elevated temperature. In this paper, caustic soda and FORYL LFO (FLO) detergent doses were changed gradually to investigate effective contaminants removal through colorimetric study. Finally, concentration vs. absorbance graphs from colorimetric study suggests that 2% NaOH and 2% FLO detergent is the optimum chemical dose at hot washing for pcrPET recycling.

Effect of aluminum doped iron oxide nanoparticles on magnetic properties of the polyacrylonitrile nanofibers

2017 ◽  
Vol 37 (2) ◽  
pp. 135-141
Author(s):  
Armin Ourang ◽  
Soheil Pilehvar ◽  
Mehrzad Mortezaei ◽  
Roya Damircheli
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Negative Interaction ◽  
Magnetic Nanofibers

Abstract In this work, polyacrylonitrile (PAN) was electrospun with and without magnetic nanoparticles (aluminum doped iron oxide) and was turned into magnetic nanofibers. The results showed that nanofibers diameter decreased from 700 nm to 300 nm by adding nanoparticles. Furthermore, pure PAN nanofibers were indicated to have low magnetic ability due to polar bonds that exist in their acrylonitrile groups. Obviously by adding only 4 wt% of the nanoparticles to PAN nanofibers, magnetic ability soared by more than 10 times, but at a higher percentage, it was shown to change just a little due to negative interaction among nanoparticles. This event relates to antiferromagnetically coupling of nanoparticles due to incomplete dispersion at higher percentage.

Synthesis and application of coagulant derived from Durio zibethinus for emerging contaminants removal from landfill leachate

2021 ◽  
Vol 11 (1) ◽  
pp. 39
Author(s):  
Mohamad Anuar Kamaruddin ◽  
Emmanuel Madu Ijanu ◽  
Rasyidah Alrozi ◽  
Mohd Hafiidz Jaafar ◽  
Khairunnisa Fakhriah Mohd Omar ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Emerging Contaminants ◽  
Durio Zibethinus ◽  
Contaminants Removal
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