Environmental Engineering Reference
In-Depth Information
VESSEL CONDUCTED
CARGO OPERATION
Check the data on vessels cargo operation
in your port
Has vessel
discharged and
loaded
cargo?
Has vessel
discharged
cargo?
Has vessel
loaded
cargo?
NO
NO
YES
YES
YES
Has vessel
discharged more
cargo
than loaded
?
YES
NO
NO
BW DISCHARGE
Has vessel
loaded
very light
cargo?
YES
Is the cargo
loaded
less than
10
%
of vessels DWT?
NO
YES
NO
Compare the data of cargo loaded quantity
and vessels DWT
Is the cargo
loaded
less than
50
%
of vessels DWT?
Is the cargo
loaded
50 - 80
%
of
vessels DWT?
Is the cargo
loaded
more than
80
%
of vessels DWT?
NO
NO
YES
YES
BW discharged
is
20
%
of
cargo loaded
BW discharged
is
25
%
of
cargo loaded
BW discharged
is
33
%
of
cargo loaded
QUANTITY OF
BW DISCHARGE
Fig. 17
Ballast water discharge assessment model (David et al.
2012
) (Reprinted from Decision
Support Systems, 53, David M, Perkovi
M, Suban V, Gollasch S, A generic ballast water
discharge assessment model as a decision supporting tool in ballast water management, 175-185,
copyright 2012, with permission from Elsevier) (This fi gure can be downloaded from
http://extras.
č
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