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The Role of Selected Technological Processes in Drinking Water Treatment

Iwona Wiewiórska

Iwona Wiewiórska

Sądeckie Wodociągi L.L.C.Nowy Sącz, Poland
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Wiewiórska, Iwona
  
20 lip 2023
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Data publikacji: 20 lip 2023
Zakres stron: 189 - 200
Otrzymano: 28 mar 2023
Przyjęty: 10 maj 2023
DOI: https://doi.org/10.2478/acee-2023-0028
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© 2023 Iwona Wiewiórska, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

Technological diagram of the WTP in Stary Sącz [16]
Technological diagram of the WTP in Stary Sącz [16]

Figure 2.

Reduction of turbidity in the WTP technological system
Reduction of turbidity in the WTP technological system

Figure 3.

Reduction of color in the WTP technological system
Reduction of color in the WTP technological system

Figure 4.

Reduction of UVA254nm in the WTP technological system
Reduction of UVA254nm in the WTP technological system

Figure 5.

Reduction of permanganatate oxygen demand in the WTP technological system
Reduction of permanganatate oxygen demand in the WTP technological system

Figure 6.

Reduction of Fetotal in the WTP technological system
Reduction of Fetotal in the WTP technological system

Figure 7.

Reduction of Mn in the WTP technological system
Reduction of Mn in the WTP technological system

Reduction of bacteria in the WTP technological system

Indicator Unit sand filters disinfection ground infiltration
% reduction % reduction % reduction
coli group bacteria min. 20.0 100.0 98.4
av. 93.3 100.0 99.9
max. 100.0 100.0 100.0
Enterococcus faecalis min. 32.1 100.0 95.0
av. 91.9 100.0 99.9
max. 100.0 100.0 100.0
Clostridium perfringens min. 72.2 100.0 96.9
av. 97.5 100.0 99.9
max. 100.0 100.0 100.0

Efficiency of water pollutant removal at individual stages of the treatment process

2018–2022
Indicator Unit Sampling point Number of samples Value median standard deviation
min. average max.
turbidity NTU Dunajec river 804 0.70 21.30 2550.00 7.60 107.20
after the settlers 804 0.60 5.90 133.00 4.00 6.50
after the filter Dyna Sand 871 0.09 0.22 0.81 0.20 0.06
after ozonation 846 0.10 0.20 0.50 0.20 0.00
after carbon filters 840 0.07 0.10 0.21 0.10 0.00
after infiltration in the ground 506 0.06 0.12 0.85 0.11 0.04
treated water 868 0.06 0.11 0.31 0.10 0.03
color mgPt·dm−3 Dunajec river 869 5.7 29.0 964.8 17.0 54.9
after the settlers 869 3.9 15.2 182.0 14.1 7.7
after the filter Dyna Sand 869 1.8 4.2 9.0 4.1 0.9
after ozonation 869 0.7 2.5 5.8 2.3 0.8
after carbon filters 874 0.0 1.2 3.1 1.1 0.6
after infiltration in the ground 517 0.9 2.2 3.8 2.2 0.4
treated water 875 0.0 0.9 3.6 0.9 0.7
UVA 254nm - Dunajec river 869 0.123 0.396 4.120 0.333 0.279
after the settlers 869 0.123 0.302 1.450 0.29 0.076
after the filter Dyna Sand 869 0.070 0.140 0.257 0.139 0.024
after ozonation 875 0.047 0.107 0.193 0.106 0.022
after carbon filters 874 0.000 0.071 0.126 0.074 0.026
after infiltration in the ground 875 0.000 0.092 0.133 0.092 0.012
treated water 517 0.046 0.064 0.115 0.067 0.026
Permanganatate oxygen demand mg·dm−3 Dunajec river 301 1.44 3.07 10.0 2.7 1.22
after the settlers 319 1.00 2.44 4.1 2.44 0.45
after the filter Dyna Sand 318 0.21 1.32 2.3 1.36 0.34
after carbon filters 333 0.00 0.93 1.76 0.96 0.28
after infiltration in the ground 313 0.00 0.94 3.54 0.34 0.27
treated water 254 0.00 0.78 1.56 0.82 0.34
Fe total mg·dm−3 Dunajec river 126 0.008 0.137 2.480 0.075 0.239
after the filter Dyna Sand 196 0.000 0.008 0.130 0.010 0.012
after infiltration in the ground 226 0.000 0.011 0.109 0.007 0.010
treated water 1101 0.000 0.008 0.090 0.006 0.007
Mn mg·dm−3 Dunajec river 56 0.0004 0.0142 0.0438 0.0094 0.0121
after the filter Dyna Sand 35 0.0000 0.0004 0.0017 0.0004 0.0003
after infiltration in the ground 56 0.0000 0.0001 0.0015 0.0000 0.0003
treated water 56 0.0000 0.0006 0.0244 0.0000 0.0032
coli group bacteria cfu·100cm−1 Dunajec river 84 10 1226 3468 1122 725
after the filter Dyna Sand 162 0 63 319 50 63
after infiltration in the ground 213 0 2 85 0 7
treated water 644 0 0 0 0 0
Enterococcus faecalis cfu·100cm−1 Dunajec river 107 0 248 2000 150 310
after the filter Dyna Sand 168 0 10 98 6 14
after infiltration in the ground 216 0 1 74 0 5
treated water 642 0 0 0 0 0
Clostridium perfringens cfu·100cm−1 Dunajec river 98 16 158 1000 119 141
after the filter Dyna Sand 166 0 3 5 1 5
after infiltration in the ground 8 0 2 0 2 2
treated water 461 0 0 0 0 0
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Architektura i projektowanie, Architektura, Architekci, budynki
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