Question And Answer: Secondary Treatment Of Sewage
any four advantages of activated sludge process?
Lesser land area is required
The head loss on the plant is quite low
There is no fly ash or odour nuisance
Capital cost is less
are the disadvantages of the activated sludge process?
High cost of operation, tooth greater
A lot of machinery to be handled
The sudden change in the quantity and
character of sewage may produce adverse effects on the working of the process
thus producing inferior efficient
are the types of track long filters?
Conventional track long filter or
ordinary or standard rate or low rate trick long filter
High rate filters or high rate trick
are the disadvantages of trick long filters?
The head loss through these filters is
high, making automatic during of the filters necessary
The cost of construction is high
There filters cannot treat ratio sewage
and primary sedimentation is a must
are the special types of filters?
do you mean by magnetic filters?
this type of filter, a layer of crashed magnetic ore of
Iron is provided in about 80mm, thickness, and is
supported on a non-magnetic metal wire screen sewage is filtered through the
magnetic layer which removes the impurities purely by mechanical starching
are the types of high late Filters?