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Nanobubble Aeration Enhanced Wastewater Treatment and Bioenergy Generation in Constructed Wetlands Coupled With Microbial Fuel Cells [PDF]

open access: yesScience of the Total Environment, 2023
Artificial aeration is a widely used approach in wastewater treatment to enhance the removal of pollutants, however, traditional aeration techniques have been challenging due to the low oxygen transfer rate (OTR).
Tao Lyu, Shubiao Wu, Robert Mortimer
exaly   +2 more sources
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Manipulating Trapped Nanobubbles Moving and Coalescing with Surface Nanobubbles

Langmuir, 2022
Trapped nanobubbles are observed nucleating at nanopits on a pitted substrate, while surface nanobubbles are usually formed on the smooth solid surface in water. In this work, trapped nanobubbles and surface nanobubbles were captured by a tapping-mode atomic force microscope (AFM) on a nanopitted substrate based on the temperature difference method.
Dayong Li   +4 more
openaire   +2 more sources

Microfluidic nanobubbles: observations of a sudden contraction of microbubbles into nanobubbles

Soft Matter, 2023
Utilizing a microfluidic flow-focusing chip to generate monodisperse bulk nanaobubbles. We make the surprising observation of a critical microbubble diameter above and below which the scale of bubble shrinkage dramatically changes.
Ali A. Paknahad   +4 more
openaire   +2 more sources

Nanobubbles and the nanobubble bridging capillary force

Advances in Colloid and Interface Science, 2010
Interactions between hydrophobic surfaces at nanometer separation distances in aqueous solutions are important in a number of biological and industrial processes. Force spectroscopy studies, most notably with the atomic force microscope and surface-force apparatus, have found the existence of a long range hydrophobic attractive force between ...
Hampton, M. A., Nguyen, A. V.
openaire   +5 more sources

A History of Nanobubbles

Langmuir, 2016
We follow the history of nanobubbles from the earliest experiments pointing to their existence to recent years. We cover the effect of Laplace pressure on the thermodynamic stability of nanobubbles and why this implies that nanobubbles are thermodynamically never stable.
Muidh, Alheshibri   +3 more
openaire   +2 more sources

On the Shape of Surface Nanobubbles

Langmuir, 2009
Previous AFM experiments on surface nanobubbles have suggested an anomalously large contact angle theta of the bubbles (typically approximately 160 degrees measured through the water) and a possible size dependence theta(R). Here we determine theta(R) for nanobubbles on smooth, highly oriented pyrolytic graphite (HOPG) with a variety of different ...
Borkent, B.M.   +3 more
openaire   +3 more sources

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