Activated sludge method
high density sludge method
semi-continuous active sludge method
Method of instruction; Teaching method; Method of teaching
Method of teaching; Teaching method; Method of instruction
Teaching method; Method of teaching; Method of instruction
case history method; case method; case study method
method of instruction; method of teaching; teaching method
right-wrong method; true-false method; yes-no method
Right-wrong method; Yes-no method; True-false method
True-false method; Right-wrong method; Yes-no method
Yes-no method; Right-wrong method; True-false method
single sludge activated sludge process
accidental teaching method; incidental teaching method
Accidental teaching method;Incidental teaching method
acid hydrolyzation method and enzyme hydrolyzation method