Table S1 Physicochemical properties of membranes ... AWS

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SUPPORTING INFORMATION

Elucidating the Rejection Mechanisms of PPCPs by Nanofiltration and Reverse Osmosis Membranes

Yi-Li Lin1*, Chung-Hsiang Lee1

1

Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 824, Taiwan, R.O.C.

*Corresponding author: Yi-Li Lin E-mail: [email protected] Phone: +886-7-6011000#2328 Fax: +886-7-6011061

Table S1 Physicochemical properties of membranes used in this study. Property

XLE

NF90

NF270

Manufacture

FilmTec, Dow

FilmTec, Dow

FilmTec, Dow

NF

NF

Fully aromatic

Fully aromatic

Semiaromatic

polyamide TFC

polyamide TFC

piperazine-based

(FT-30 type)

(FT-30 type)

polyamide TFC

MWCO (Da)

100 a

200 a, c

300 e, g

Average pore radius (nm)

-

0.34 d

0.42 d

8.8

10.6

17.8

NaCl rejection (%)

99

85-95

40

MgSO4 rejection (%)

-

> 97

> 97

Contact angle (◦)

66.3 a

63.2 a

64.1 ± 10.5 c, e

129.5 ± 23.4 g

142.8 ± 9.6 g

9.0 ± 4.2 e , g

3.5 h

4.0 h

4.1 e

pH = 3

13 i

13 h

7f

pH = 5

-17 i

-7 h

-15 f

pH = 7

-33 i

-24.9 h

-19 f, -22 h

pH = 9

-38 i

-28 h

-22 f

pH = 10

-38 i

-29 h

-28 f

Ultra low Membrane type pressure RO

Membrane material

Pure water permeability (L/m2 h bar)

Root mean square roughness (nm) Isoelectric point, pH Zeta potential (mV)

a 1 b 2, 3 c 4 d 5 e 6 f 7 g 8 h 9 i 10

,

,

,

,

;

;

;

,

.

Table S2

Physicochemical properties of PPCPs used in this study. Diffusion coefficient (10-10 m2/s) a 5.81

Stokes radius (nm) 0.422

pKab

log Kowc

Classificationd

C15H12N2O

Molecula r weight (g/mol) 236.3

13.9

2.45

HPO-N

Analgesic

C13H18O2

206.3

5.95

0.412

4.3

3.14

HPO-I

68-35-9

Antibiotic

C10H10N4O2S

250.3

6.11

0.401

6.4

0.21

HPI-I

SMX

723-46-6

Antibiotic

C10H11N3O3S

253.3

6.08

0.403

5.7

0.86

HPI-I

Sulfamethazine

SMZ

57-68-1

Antibiotic

C12H14N4O2S

278.3

5.58

0.439

7.6

1.62

HPI-N

Triclosan

TRI

3380-34-5

Antibiotic

C12H7Cl3O2

289.5

5.91

0.415

8.0

4.86

HPO-N

Name

Acronym

CAS #

Type

Molecular formula

Carbamazepine

CBZ

298-46-4

Antiepileptic

Ibuprofen

IBU

15687-27-1

Sulfadiazine

DIA

Sulfamethoxazole

a

Calculated from the method proposed by Wilke and Chang 11. ADME/Tox Web Software. c Calculated using ChemOffice 2010. d HPI: hydrophilic (log Kow ≦ 2), HPO: hydrophobic (log Kow > 2), I: ionic (pKa ≦ 7), N: noni-onic (pKa > 7). b

Structure

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