Air bubble techniques
Air bubble techniques are based on the bubble barrier produced when compressed air is fed into a submerged, perforated hose, creating a series of bubble plumes rising from the holes. The rising bubbles cause a vertical current of air and water to flow to the surface, in turn generating a flow of water towards the barrier in the lower layer of water and away from the barrier in the upper layer. This has a mixing function, which can be useful in aerating a stagnant lake.
Table I describes and illustrates various techniques developed by a major manufacturing company.
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Objectives of the guide
Compressed Air Transmission and Treatment:SYSTEM MAINTENANCE
Compressed Air Transmission and Treatment:BREATHING AIR FILTRATION
Energy and Efficiency:ENERGY GENERATION AND DISPERSAL
BASIC PRINCIPLES:GAS LAWS AND THERMODYNAMICS.
Optimizing and up-rating of existing systems:Modifying plant components
RESERVOIRS, STRAINERS, FILTERS, AND ACCUMULATORS:fiLTRATION
Pressure and flow:Flow
Control components in a hydraulic system:Meter-out operation
Fault-finding.
Pressure regulation:Relief valves,Non-relieving pressure regulators and Relieving pressure regulat...
Safety, Fault-Finding and Maintenance:Preventive maintenance
PROPERTIES OF PURE SUBSTANCES:PHASE-CHANGE PROCESSES OF PURE SUBSTANCES
POWER AND REFRIGER A TION CYCLES:THE REVERSED CARNOT CYCLE
FORCED CONVECTION:GENERAL THERMAL ANALYSIS