Table 1

Dosing mode of pretreatment tank

Dosing tankA1A2A3A4
Volume (L) 100 100 100 100
Flow rate (L/d) 100 100 100 100
Free chlorine (g/d) 24 48 120
Pretreatment tankA1A2A3A4
Free chlorine (mg/L)
Dosing tankA1A2A3A4
Volume (L) 100 100 100 100
Flow rate (L/d) 100 100 100 100
Free chlorine (g/d) 24 48 120
Pretreatment tankA1A2A3A4
Free chlorine (mg/L)

Sodium hypochlorite solution was continuously pumped from the A1–A4 dosing tanks to pretreatment tanks.

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