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Treatment cost (TRC) and the ability of the treatment option to work robustly (AB) were the same as previously. The removals of parameters were calculated referring to the mean GW characteristics in Table 5. Greywater reuse options and criteria used in comparison using the AHP, on the basis of removal efficiency, are given in Table 12.

Table 12

Greywater reuse options and criteria used in comparison using AHP

TRCABΔpHTUREC25TSSO&GBOD5BoronSARΔFC
OptionUS$/MLD%%%%%%%log10 Option 1 532 4.0 0.24 94.60 4.71 83.70 77.14 73.58 85.90 15.25 4.99 Option 2 9,249 6.0 0.44 99.00 − 9.03 93.98 96.67 88.42 84.10 03.23 5.10 Option 3 9,897 7.5 0.37 99.27 − 4.97 95.53 93.26 93.49 87.30 24.19 4.85 Option 4 3,703 7.0 0.54 97.04 − 4.40 92.39 90.32 85.71 85.70 12.24 5.11 TRCABΔpHTUREC25TSSO&GBOD5BoronSARΔFC OptionUS$/MLD%%%%%%%log10
Option 1 532 4.0 0.24 94.60 4.71 83.70 77.14 73.58 85.90 15.25 4.99
Option 2 9,249 6.0 0.44 99.00 − 9.03 93.98 96.67 88.42 84.10 03.23 5.10
Option 3 9,897 7.5 0.37 99.27 − 4.97 95.53 93.26 93.49 87.30 24.19 4.85
Option 4 3,703 7.0 0.54 97.04 − 4.40 92.39 90.32 85.71 85.70 12.24 5.11

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