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Impact of the UV Lamp Power on the Formation of Swimming pool Water Treatment By-Products


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Figure 1.

Chromatograms obtained during the analysis of swimming pool water (a) before and after 60 min of UV irradiation with lamps of (b) 15 W and (c) 150 W
Chromatograms obtained during the analysis of swimming pool water (a) before and after 60 min of UV irradiation with lamps of (b) 15 W and (c) 150 W

Figure 2.

Influence of irradiation time on the decrease of the concentration of (a) pharmaceutical compounds, (b) personal care product additives, (c) food additives and (d) other compounds (15 W UV lamp)
Influence of irradiation time on the decrease of the concentration of (a) pharmaceutical compounds, (b) personal care product additives, (c) food additives and (d) other compounds (15 W UV lamp)

Figure 3.

The decrease of the concentration of (a) pharmaceutical compounds, (b) personal care product additives, (c) food additives and (b) other compounds during the irradiation with the 150 W UV lamp
The decrease of the concentration of (a) pharmaceutical compounds, (b) personal care product additives, (c) food additives and (b) other compounds during the irradiation with the 150 W UV lamp

Figure 4.

Decrease of carbon amount during the irradiation of swimming pool water with the (a) 15 W and (b) 150 W UV lamp
Decrease of carbon amount during the irradiation of swimming pool water with the (a) 15 W and (b) 150 W UV lamp

Parameters of swimming poll water

Parameter Value
pH [-] 7.34
UV absorbance λ=254 nm [cm-1] 0.041
Conductivity [mS/cm] 2.04
Redox potential [mV] 664
TOC [mg/L] 15.53
Free chlorine [mg/L] 0.42
Combined chlorine [mg/L] 0.46

Organic micropollutants identified in swimming pool water samples

Group Name Abbreviation Molar mass [g/mol]
Pharmaceuticals caffeine CAF 194.19
carbamazepine CBZ 236.30
batilol BAT 344.57
hydrochlorothiazide HCT 297.74
Personal Care Product additives 2-phenoxyethanol POE 138.16
benzophenone-3 BP3 228.25
benzophenone-8 BP8 244.24
hedione HED 226.32
levomenthol LVM 156.27
trichloroacetic acid TCA 163.39
oleic acid OA 282.47
Food additives butylated hydroxytoluene BHT 220.35
carvone CRV 150.22
Other chloroform CRF 119.38
dimethyl phthalate DEP 194.18
dibutyl phthalate DBP 278.34
eISSN:
1899-0142
Language:
English
Publication timeframe:
4 times per year
Journal Subjects:
Architecture and Design, Architecture, Architects, Buildings