Parameter

Unit

Wastewater

RO feed (before recycling)

pH

-

-^a

8.1

Conductivity

µS∙cm⁻¹

-

1268 ± 26

NPOC^b

mg∙L⁻¹

231 ± 5

5.8 ± 0.1

Proteins

mg∙L⁻¹

33.4 ± 3.3

6.5 ± 1.3

Polysaccharide

mg∙L⁻¹

7.4 ± 0.7

1.0 ± 0.1

COD^c

mg∙L⁻¹

830 ± 10

21 ± 2

UVA₂₅₄^d

cm⁻¹

-

0.152 ± 0.002

UVA₂₈₀

cm⁻¹

-

0.118 ± 0.002

DIC^e

mg∙L⁻¹

-

6.5 ± 0.1

Cl^−f

mg∙L⁻¹

64 ± 6

127 ± 13

${\text{N-NO}}_3^{-}$

mg∙L⁻¹

0.20 ± 0.02

5.0 ± 0.5

${\text{HCO}}_3^{-}$

mg∙L⁻¹

-

27 ± 3

${\text{SO}}_4^{2-}$

mg∙L⁻¹

42 ± 4

43 ± 4

${\text{P-PO}}_4^{3-}$

mg∙L⁻¹

3.0 ± 0.3

0.90 ± 0.09

Na⁺

mg∙L⁻¹

174 ± 17

176 ± 18

K⁺

mg∙L⁻¹

14 ± 1

12 ± 1

Mg²⁺

mg∙L⁻¹

8.4 ± 0.8

5.7 ± 0.6

Ca²⁺

mg∙L⁻¹

124 ± 12

70 ± 7