Preparation of nitride ceramic membranes.
casting process is a novel ceramic membranes forming technology, which can make asymmetric
ceramic membranes with high strength and good flux. This method has been used in our
laboratory for many years to make ceramic membranes. By adjusting the experimental
conditions (slurry solid content, particle size, sintering temperature, etc.) in the
preparation process, the properties of ceramic membrane products can be controlled. Ceramic
membranes with different pore sizes can be selected for oil-water mixtures with different
Treatment of oil-bearing wastewater.
is a necessary process to protect the environment. The oil in oil-bearing wastewater is
emulsified and the oil particles are small. The size of oil particles is analyzed, and then
the ceramic membrane material suitable for pore size is selected for separation.
Recovery of oil.
The wastewater after
gravity separation still contains about 3-5% oil, which is in the dispersed or emulsified
state. Using hydrophobic ceramic membrane, and most of the dispersed oil can be recovered,
which can reduce the environmental pollution and increase the oil production.
Purification of water-bearing oil.
A method to improve
the energy efficiency of oil purification. Ceramic membrane separation method can separate
some water droplets from the water-bearing oil and improve the purity of the oil.
In situ assembly of ceramic membrane modules.
The application of
ceramic membrane needs to assemble ceramic membrane into membrane module, because of the
characteristics of ceramic, in order to improve the service life, the membrane module can be
assembled in situ by improving the molding method.