Ad
related to: nano bubble generator for aquaculture system
Search results
Results from the WOW.Com Content Network
For improving its ability mass-transfer efficiency ozone micro/nano-bubble(MNB) is an important technology. For improving, gas-liquid contact and mass-transfer effectiveness air microbubbles were used. While in the case of ozone, MNB improves the properties of ozonation or oxidation. [6] [7]
In 1994, a study by Phil Attard, John L. Parker, and Per M. Claesson further theorized about the existence of nano-sized bubbles, proposing that stable nanobubbles can form on the surface of both hydrophilic and hydrophobic surfaces depending on factors such as the level of saturation and surface tension. [15]
Techniques such as the controlled encapsulation of individual gas bubbles to create hollow nanoparticles for synthesizing microbubbles with specific contents are vital for drug delivery systems. Both silica and titanium-based microparticles are used as durable shells after using gas to increase the flow velocity of the aqueous phase.
Theses systems circulate longer in the body than microbubbles alone do, as this packaging method prevents the microbubble from dissolving in the blood stream. [35] Hydrophilic drugs persist in the aqueous media inside the liposome, while hydrophobic drugs congregate in the lipid bilayer.
The enrichment and recovery depend on the hydrodynamic condition of the rising foam, which is a complex system dependent upon bubble size distribution, stress state at the gas-liquid interface, rate of bubble coalescence, gas rate inter alia. The hydrodynamic condition is described by the Hydrodynamic Theory of Rising Foam. [5]
The animal snaps a specialized claw shut to create a cavitation bubble that generates acoustic pressures of up to 80 kPa at a distance of 4 cm from the claw. As it extends out from the claw, the bubble reaches speeds of 60 miles per hour (97 km/h) and releases a sound reaching 218 decibels. The pressure is strong enough to kill small fish.
A biofilter and CO 2 degasser on an outdoor recirculating aquaculture system used to grow largemouth bass Water treatment processes needed in a recirculating aquaculture system. A series of treatment processes is utilized to maintain water quality in intensive fish farming operations. These steps are often done in order or sometimes in tandem.
Comprehensive instrumentation and sensor controls are required to monitor this equipment and the underlying water conditions such as temperature, dissolved oxygen, and pH. Development of recirculating aquaculture systems is still underway in 2017, and engineering advances are needed to make the systems economically viable for culturing most ...
Ad
related to: nano bubble generator for aquaculture system