Process Selection Considerations
Selection of an activated-sludge process for BOD removal and nitrification is a function of many considerations including specific site constraints, compatibility with the existing process, compatibility with existing equipment, present and future treatment needs, level of capability of the operating staff, capital costs, and operating cost.
Complete-mix activ
Calculations of the design of each unit operations
Flowrate
Present Average Flowrate = 4220 m3/d
Water use per capita = 4220/15000 = 0.281333 m3/d capita
Population after 10 years = 15000 Χ 1.0310 = 20158.75 ≒ 21000 capita
∴ Average Flowrate = 0.281333 Χ 21000 = 5908 m3/d ≅6000m3/d
Peak Flowrate = 5908 Χ 1.5 = 8862 m3/d ≅9000 m3/d
Screening
Conditions
Cle
THE GREEN MILE
??
Screenplay by
Frank Darabont
??
from the novel by
Stephen King
??
??
??
We each owe a death, there are no exceptions...
??
??
A SONG BEGINS, distant as a faded memory on an old Victrola:
??
Once I built a railroad, made it run... Made it race against
time...Once I built a railroad, now its done...Brother, can
you spare a dime...
??
Opening credit sequence
??
plays against footag