WASTEWATER ENGINEERING EXAM 2025/2026 QUESTIONS AND ANSWERS 100% PASS

WASTEWATER ENGINEERING EXAM
2025/2026 QUESTIONS AND ANSWERS
100% PASS




Wastewater engineering - ANS Basic principles and engineering are applied to the problems
of water pollution control


Pollution - ANS Introduction of substance to the environment at levels leading to lost
beneficial use of a source or degradation


NPDES - ANS National pollution discharge elimination system


TSS - ANS 70% organic
30% inorganic


Settle able solids - ANS Imhoffcone


Amines - ANS CH3NH2


Ammonia - ANS NH3


Diamines - ANS NH2(CH2)5

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, Mercaptantant - ANS CH3SH


Organic Sulfide - ANS (CH3)2S


Skatole - ANS C9H9N


Detect ability - ANS Number of dilution required to reduce an odor to its minimum


Hedonics - ANS Relative pleasantness bro unpleasantness


Intensity - ANS Normally correlated with the concentration of the odor


BOD Exerted - ANS BODe=BODu(1-e^-kt)


Van't Hoff - ANS kt=k20(Ø)^T-20
Ø=1.047


BODu=BOD20(02T+ 0.6) - ANS BOD Ultimate


Trophy - ANS Rate a which organic matter is supplied to lakes


Activated carbon - ANS Taste and odor control
C


Ammonium sulfate - ANS (NH4)2SO4
Coagulation


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