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WorksheetsFate of chemicals in the environment
Total questions: 14
Worksheet time: 5mins
Fate of contaminant depends on:
its chemical characteristics
nature of medium
environmental conditions
all answers are right
Partition coefficients tells you about how a substance distributes between two phases
True
False
Environmental partition coefficients water and lipid is
Henry's Law Constant
Octanol-water partition
Sorption coefficient
Bioconcentration factor
Henry's law constant shows environmental partition coefficients of
water and air
water and lipid
water and solid
water and biota
Henry's Law Constant describes
a substance dissolving in water (concentration at saturation)
the tendency of a chemical to volatilise from water into the atmosphere
the tendency of a chemical to dissolve from water into the soil
the tendency of a chemical to dissolve from soil into the water
Henry's law states
P=KH×C
P=CKH
P=KH×C1
P=R×TKH×C
When log H > 1 substances are called
volatile
aerophilic
aviator
fliers
When log H < - 2
hydrophillic
swimmers
soluble
aquaman
When -2< log H < 1 substances are called
Soliphilic
Aerobic
Solid
Hoppers
Kow is measured in the laboratory and it is a constant
True
False
BOD stands for
Biological Oxygen demand
Biochemical Oxygen Demand
Both a and b
None of this
Which one is bio-degradable waste?
paper
dry leaves
food waste
all of these
The high BOD value represents clean water
True
False
The reduction of BOD conducted on ... of wastewater
Screening
Primary treatment
Secondary treatment
Disinfection
