Aeration Flashcards
Swamp gas is common name often substituted for ___.
methane
A ___ ___ is more effective than the cone, cascade, and slate-and-coke tray type of aerators when it comes to oxidizing iron and manganese and removing dissolved gases.
draft aerator
Aeration occurs in the splash areas of a ___ aerator.
cascade
The normal air-to-water ratio during peak flow in a packed tower is ___ to ___.
25 to 1
A carbon dioxide concentration of ___ mg/l will reduce the water’s pH and make it more corrosive.
50
Carbon dioxide is removed from water by the aeration process due to the ___ ___, not oxidation.
stripping action
Hydrogen sulfide is easily removed by most forms of ___ because it comes out of solution very easily.
aeration
___ is not very soluble in water which means that almost any form of aeration will remove it.
Methane
Packed tower aeration is used to remove ___ from a water supply to meet regulatory requirements.
VOC’s
The aeration systems using pressurized air are ___-___-___ type aeration systems.
Air-Into-Water
Water ___ and gas solubility are inversely related which means that as ___goes up, solubility goes down.
temperature
___ ___ aerators maybe regulated by the Clean Air Act due to their gas discharges.
Packed Tower
___, ___, and ___ control tests are routinely performed on aeration systems to determine if the system is operating correctly and efficiently.
DO, pH, and temperature
___ ___ occurs when gases come out of solution in the media of a gravity filter due to excess DO in the water and a drop in pressure.
Air binding
