IWA Publishing

Table 1

Raw water quality

Parameter	Values	Instruments	Methods
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)	0		Multi-tubular fermentation
Escherichia coli (CFU/100 mL)	0
pH	7.5–7.8	FiveGo – Single Channel Portable pH Meter

Parameter	Values	Instruments	Methods
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)	0		Multi-tubular fermentation
Escherichia coli (CFU/100 mL)	0
pH	7.5–7.8	FiveGo – Single Channel Portable pH Meter