Scalable Slippery Omniphobic Covalently Attached Liquid Coatings for Flow Fouling Reduction

2021 ◽  
Author(s):  
Hanyang Zhao ◽  
Siavash Khodakarami ◽  
Chirag Anand Deshpande ◽  
Jingcheng Ma ◽  
Qiyuan Wu ◽  
...  
Keyword(s):  
Fouling Reduction

scholarly journals Surface Adsorption of the Cancer Biomarker Lysophosphatidic Acid in Serum Studied by Acoustic Wave Biosensor

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4158
Author(s):  
Brian De La Franier ◽  
Michael Thompson
Keyword(s):  
Acoustic Wave ◽  
Lysophosphatidic Acid ◽  
Electrode Surface ◽  
Biological Fluids ◽  
Thiol Group ◽  
Cancer Biomarker ◽  
Specific Adsorption ◽  
Shear Mode ◽  
Serum Samples ◽  
Fouling Reduction

The thickness shear mode acoustic wave device is of interest for the sensing of biomarkers for diseases in various biological fluids, but suffers from the issue of non-specific adsorption of compounds other than those of interest to the electrode surface, thus affecting the device’s output. The aim of this present study was to determine the level of non-specific adsorption on gold electrodes from serum samples with added ovarian cancer biomarker lysophosphatidic acid in the presence of a surface anti-fouling layer. The latter was an oligoethylene molecule with thiol group for attachment to the electrode surface. It was found that the anti-fouling layer had a minimal effect on the level of both adsorption of components from serum and the marker. This result stands in sharp contrast to the analogous monolayer employed for anti-fouling reduction on silica.

Alginate fouling reduction of functionalized carbon nanotube blended cellulose acetate membrane in forward osmosis

Chemosphere ◽  
2015 ◽  
Vol 136 ◽  
pp. 204-210 ◽  
Author(s):  
Hyeon-gyu Choi ◽  
Moon Son ◽  
SangHyeon Yoon ◽  
Evrim Celik ◽  
Seoktae Kang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Cellulose Acetate ◽  
Forward Osmosis ◽  
Cellulose Acetate Membrane ◽  
Functionalized Carbon Nanotube ◽  
Fouling Reduction

scholarly journals Membrane Fouling Controlled by Adjustment of Biological Treatment Parameters in Step-Aerating MBR

Membranes ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 553
Author(s):  
Dimitra C. Banti ◽  
Manassis Mitrakas ◽  
Petros Samaras
Keyword(s):  
Membrane Fouling ◽  
Membrane Filtration ◽  
Municipal Wastewater ◽  
Operating Conditions ◽  
Transmembrane Pressure ◽  
Aeration Tank ◽  
Filamentous Bacteria ◽  
Membrane Performance ◽  
Low Concentrations ◽  
Fouling Reduction

A promising solution for membrane fouling reduction in membrane bioreactors (MBRs) could be the adjustment of operating parameters of the MBR, such as hydraulic retention time (HRT), food/microorganisms (F/M) loading and dissolved oxygen (DO) concentration, aiming to modify the sludge morphology to the direction of improvement of the membrane filtration. In this work, these parameters were investigated in a step-aerating pilot MBR that treated municipal wastewater, in order to control the filamentous population. When F/M loading in the first aeration tank (AT1) was ≤0.65 ± 0.2 g COD/g MLSS/d at 20 ± 3 °C, DO = 2.5 ± 0.1 mg/L and HRT = 1.6 h, the filamentous bacteria were controlled effectively at a moderate filament index of 1.5–3. The moderate population of filamentous bacteria improved the membrane performance, leading to low transmembrane pressure (TMP) at values ≤2 kPa for a great period, while at the control MBR the TMP gradually increased reaching 14 kPa. Soluble microbial products (SMP), were also maintained at low concentrations, contributing additionally to the reduction of ΤΜP. Finally, the step-aerating MBR process and the selected imposed operating conditions of HRT, F/M and DO improved the MBR performance in terms of fouling control, facilitating its future wider application.

scholarly journals Fouling reduction in MBR-RO processes: the effect of MBR F/M ratio

2013 ◽  
Vol 51 (25-27) ◽  
pp. 4829-4838 ◽  
Author(s):  
Tamotsu Kitade ◽  
Bing Wu ◽  
Tzyy Haur Chong ◽  
Anthony G. Fane ◽  
Tadahiro Uemura
Keyword(s):  
Fouling Reduction

Effects of sludge particles on performance of enhanced backwash for fouling reduction in anaerobic membrane bioreactors

2014 ◽  
Vol 55 (3) ◽  
pp. 693-701
Author(s):  
D.E. Lee ◽  
J.H. Kweon ◽  
H.S. Kim ◽  
K.Y. Lee ◽  
K.Y. Park ◽  
...  
Keyword(s):  
Membrane Bioreactors ◽  
Anaerobic Membrane Bioreactors ◽  
Fouling Reduction

Click poly(ethylene glycol) multilayers on RO membranes: Fouling reduction and membrane characterization

2012 ◽  
Vol 409-410 ◽  
pp. 9-15 ◽  
Author(s):  
Cheli Wang ◽  
Georgina K. Such ◽  
Adrian Widjaya ◽  
Hannah Lomas ◽  
Geoff Stevens ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Membrane Characterization ◽  
Poly Ethylene ◽  
Fouling Reduction
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