环境工程专业英语.ppt

环境工程专业英语
主讲人:杨卫华
河北工程学院城建系环境教研室
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Seminar (20)
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check on work attendance (10)
课时安排
Engineering Interactions with the Environment February 2004
The Microbiology of Activated Sludge
Water
Treatment
Wastewater
Treatment
Run-off
Surface water
Potable
Water
Raw
Sewage
Abstraction
Infiltration
Rainwater
Groundwater
Material Inputs
.. food & energy
Sludge
Sludge
Material Outputs
Introduction
Activated sludge can be defined as "a mixture of anisms which contact and digest bio-degradable materials (food) from wastewater."
Activated sludge is anisms.
The Activated sludge process is a biological process.
To properly control the activated sludge process, you must properly control the growth of anism. This involves controlling the items which may affect those anisms.
Engineering Interactions with the Environment February 2004
Bacteria