According to these results, the flux increases with increasing stirring rate due to decrease of the thickness of the diffusion boundary layers at both interfaces of the membrane.
The increase in adsorption at higher stirring probably due to proper contact between the phenolate ions and the adsorbent binding sites and consequently promoting effective transfer of sorbate ions to the sorbent sites.
At low stirring speeds (<300 r/min), big droplets are broken down and dispersed due to stirring, and the average particle size becomes smaller as a result.
During stirring, SiC and Al2O3, preheated to 600°C for 1 h, in equivalent volume fraction was added into the vortex formed due to stirring.
Thus, it supposes that asphaltene precipitation depends on stirring time but due to the presence of other solubility parameters (saturates, aromatics and resins) which may not be present in the right ratios, Bodo and Mogho did not depend on stirring time.
The rotation rate was chosen so that undesired vibrations due to stirring during anodization were minimum.
The reason is the influence of inherent variables such as power input due to stirring, environmental heat loss and evaporation.
It was suggested that droplets of the PLLA solution form spheres coated with PVA, which are then deformed into fibrous shapes due to stirring.
This clearly illustrates that the Au NPs are thus produced and quickly diffused from the interfacial region to the other regions within the solution, i.e., the residence time of NPs at the interfacial region decreases due to stirring.
However, an opposite trend was observed between substrate concentration and hydrolysis yield due to stirring difficulties, poor mixing, and end product inhibition.
