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Table 7

The designed parameters of the NF system

NumberParameterDesigned value
Net rate of water production ≥100,000 m3/d (4–30 °C) 
Recovery rate 90% (4–30 °C) 
Number of series 
Number of NF set 10 
Type of NF membrane Spiral-wound membrane 
Ratio of pressure between NF segments 38:18:11 
Permeability of NF membrane 23.9 LMH 
Removal rate of sulfates ≥95% (4–30 °C) 
Removal rate of TOC ≥90% (4–30 °C) 
10 Removal rate of pigments >90% (4–30 °C) 
11 Variation range of pH during filtration ≤1 (4–30 °C) 
NumberParameterDesigned value
Net rate of water production ≥100,000 m3/d (4–30 °C) 
Recovery rate 90% (4–30 °C) 
Number of series 
Number of NF set 10 
Type of NF membrane Spiral-wound membrane 
Ratio of pressure between NF segments 38:18:11 
Permeability of NF membrane 23.9 LMH 
Removal rate of sulfates ≥95% (4–30 °C) 
Removal rate of TOC ≥90% (4–30 °C) 
10 Removal rate of pigments >90% (4–30 °C) 
11 Variation range of pH during filtration ≤1 (4–30 °C) 
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