diffused aeration造句

There are two main types of diffused aeration systems, retrievable and fixed grid, that are designed to serve different purposes.
Manufacturers of diffused aeration systems claim that converting from coarse bubble to fine bubble system should yield a 50 percent energy cost savings.
Fine bubble diffused aeration is able to maximize the surface area of the bubbles and thus transfer more oxygen to the water per bubble.
The plant was used in 1952 to test diffused aeration technology and a diffused-air activated sludge purification system has been in continuous use since.
Surface aerators are commonly quoted as having an aeration efficiency of 0.5-1.5 kg O 2 / kWh, diffused aeration as 1.5-2.5 kg O 2 / KWh.
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