Chapter 3 Decision Support Model (IUWS-DSM) - Tubdok

64 New Conception and Decision Support Model for IUWS
Table 25: Water supply options for WUU – with DUAL system (continued)
no. water source
(with quality)
+roof-water
networks X
(+ trmt. stage)
networks Y
(+ trmt. stage)
roof-water is treated into Qual. A(1) or B/C
application conditions
4 sp.nk. (A(1)) A(1) � A(1) rf.wa. � B/C roof-water is sufficient for the
demand of Qual. B/C
5 sp.nk. (B/C) rf.wa. � A(1) B/C � B/C roof-water is sufficient for the
demand of Qual. A
6 sp.nk. (B/C) B/C � A(1) rf.wa. � B/C
[2] (B/C � B/C)
7
[1] sp.nk. (A(1))
+ sp.nk. (B/C)
+direct reuse
A(1) � A(1)
rf.wa. � B/C
[2] (B/C � B/C)
reclaimed water is directly supplied in networks Y
easier to treat sp.nk. into Qual. A
than roof-water
UD has dual system,
the demand of Qual. A (or A+B) is
minor
8 sp.nk. (A(1)) A(1) � A(1) used wa. � B/C UD supplies insufficiently
9 sp.nk. (B/C) B/C � A(1) used wa. � B/C
[2] (B/C � B/C)
10
[1] sp.nk. (A(1))
+ sp.nk. (B/C)
+both
A(1) � A(1)
11 sp.nk. (A(1)) A(1) � A(1)
rf.wa. � A(1)
used wa. � B/C
[2] (B/C � B/C)
UD supplies insufficiently,
if reclaimed water is inadequate
sp.nk. complements it
UD supplies insufficiently
both roof-water utilisation and direct water reuse are applied
12 sp.nk. (A(1)) A(1) � A(1) rf.wa. � B/C
used wa. � B/C
13 sp.nk. (B/C) rf.wa. � A(1) used wa. � B/C
[2] (B/C � B/C)
14 sp.nk. (B/C) B/C � A(1)
rf.wa. � A(1)
used wa. � B/C UD supplies scarce, the demand of
Qual. A (or A+B) is dominant
used wa. � B/C
[2] (B/C � B/C)
15 sp.nk. (B/C) B/C � A(1) rf.wa. � B/C
used wa. � B/C
[2] (B/C � B/C)
UD supplies scarce, the demand of
Qual. A (or A+B) is minor
UD supplies scarce,
roof-water is sufficient for the
demand of Qual. A (or A+B)
UD supplies scarce, the demand of
Qual. A (or A+B) is dominant,
roof-water alone is inadequate for
the demand of Qual. A (or A+B)
UD supplies scarce, the demand of
Qual. A (or A+B) is minor
easier to treat sp.nk. into Qual. A
than roof-water
Abbreviations: rf.wa. – roof-water; trmt. – treatment; Qual. – Quality;
sp.nk. – superior networks, indicates water from networks of superior water entity
[1] it indicates that the superior water entity has the dual system.
[2]
the water source in the parentheses is considered as the additional source for the emergency
situations.