Table 15 Energy consumption accounting of spiral wound nanofiltration.

From: Pilot-scale research on advanced treatment of surface water from Beijing-Hangzhou grand Canal with seasonably variable temperature based on Hollow fiber nanofiltration

Electric device

Installed power (kW)

Daily energy consumption (kWh/d)

Daily output of permeat (t/d)

Electricity charge (RMB/KWh)

Energy consumption per ton of permeat (RMB/t)

Supply Pump

1.5

10.3857

25

0.63

0.26172

Intersegment Pump

1.5

8.6290

25

0.63

0.21745

Flush Pump

1.5

0.0004

25

0.63

0.00001

Dosing Pump of Reductant (NaHSO3)

0.024

0.0004

25

0.63

0.00001

Dosing Pump of Antiscalant

0.024

0.0016

25

0.63

0.00004

Other Low-Power Devices

0.03

0.3659

25

0.63

0.00922

In Total

0.48845

  1. Bold value indicates statistically significant