The methods used for biological treatment are
...The methods used for biological treatment are
lagoon
activated sludge process
oxidation ditches
all of these
Correct answer is D
No explanation has been provided for this answer.
α-amylase is an endo enzyme which requires ...
Temporary hardness of water is caused by the presence of ...
The activated sludge process is sometimes referred as ...
Enzymes degrade, alter or synthesize a food component through ...
Chymosin hydrolyses the bond between ...
Hersperidinase is used for ...
Temporary hardness of water may be removed by adding ...
Coliform bacteria in water is an indication of the presence of ...