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Table 1

Raw water quality

ParameterValuesInstrumentsMethods
Chroma (degree) 1–2 PFXi-995 High Precision Automatic Colorimeter  
Turbidity (NTU) 0.1 HACH-2100AN Turbidity Meter  
UV254 (1/cm) 0.011–0.015 DR6000 (HACH Instrument Corporation) Direct reading 
TOC (mg/L) 0.82–0.98 Shimadzu TOC-L Organic Carbon Analyzer High temperature Catalytic Combustion 
NO3-N (mg/L) 0.6–0.9 DR6000 UV Spectrophotometers Ultraviolet spectrophotometry 
NH4+-N (mg/L) 0.05–0.06 DR6000 UV Spectrophotometers Salicylic acid method 
TP (mg/L) 0.64–0.73 DR6000 UV Spectrophotometers Digestive-ascorbic acid method 
Total number of bacteria (CFU/mL) 0–5  Plate counting 
Total coliforms (CFU/100 mL)  Multi-tubular fermentation 
Escherichia coli (CFU/100 mL)   
pH 7.5–7.8 FiveGo – Single Channel Portable pH Meter  
ParameterValuesInstrumentsMethods
Chroma (degree) 1–2 PFXi-995 High Precision Automatic Colorimeter  
Turbidity (NTU) 0.1 HACH-2100AN Turbidity Meter  
UV254 (1/cm) 0.011–0.015 DR6000 (HACH Instrument Corporation) Direct reading 
TOC (mg/L) 0.82–0.98 Shimadzu TOC-L Organic Carbon Analyzer High temperature Catalytic Combustion 
NO3-N (mg/L) 0.6–0.9 DR6000 UV Spectrophotometers Ultraviolet spectrophotometry 
NH4+-N (mg/L) 0.05–0.06 DR6000 UV Spectrophotometers Salicylic acid method 
TP (mg/L) 0.64–0.73 DR6000 UV Spectrophotometers Digestive-ascorbic acid method 
Total number of bacteria (CFU/mL) 0–5  Plate counting 
Total coliforms (CFU/100 mL)  Multi-tubular fermentation 
Escherichia coli (CFU/100 mL)   
pH 7.5–7.8 FiveGo – Single Channel Portable pH Meter  
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