Table 3.
Concentration and standard deviation (SD) of DEP, DBP, and DEHP in (μg/mL) after treatment of phthalates contaminated drinking water applying different amounts of AC, RODP, and S-RODP at 30 °C
| Phthalate esters μg/mL (×10−3) |
A | D | E | H | Q | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adsorbent mass (g) | |||||||||||||||
| 0.05 | 0.1 | 0.15 | 0.05 | 0.1 | 0.15 | 0.05 | 0.1 | 0.15 | 0.05 | 0.1 | 0.15 | 0.05 | 0.1 | 0.15 | |
| AC | |||||||||||||||
| DEP | 7.76 | ND* | ND | 6.29 | 4.59 | 1.94 | 0.97 | 0.48 | ND | 4.5 | 1.11 | 1.0 | 2.04 | 1.5 | 0.96 |
| SD | 0.051 | – | – | 0.07 | 0.06 | 0.032 | 0.015 | 0.01 | – | 0.12 | 0.05 | 0.01 | 0.05 | 0.1 | 0.01 |
| DBP | 5.1 | 1.9 | 1.9 | 7.2 | 4.9 | 4.9 | 1.5 | 1.4 | 1.4 | 4.9 | 3.2 | 1.5 | 1.6 | 1.1 | 0.96 |
| SD | 0.1 | 0.05 | 0.05 | 0.2 | 0.1 | 0.1 | 0.04 | 0.04 | 0.04 | 0.1 | 0.2 | 0.04 | 0.04 | 0.05 | 0.01 |
| DEHP | 1.3 | 0.56 | ND | 6.8 | 1.1 | 0.8 | 3.7 | 0.9 | 0.3 | 2.0 | 1.11 | 0.73 | 0.085 | ND | ND |
| SD | 0.1 | 0.02 | – | 0.15 | 0.05 | 0.07 | 0.09 | 0.01 | 0.01 | 0.1 | 0.01 | 0.02 | 0.003 | – | – |
| RODP | |||||||||||||||
| DEP | 0.36 | ND | ND | 0.23 | ND | ND | 2.35 | 0.73 | 0.43 | 4.5 | 1.11 | 1.0 | 2.04 | 1.5 | 0.96 |
| SD | 0.006 | – | – | 0.02 | – | – | 0.01 | 0.02 | 0.02 | 0.12 | 0.01 | 0.06 | 0.03 | 0.01 | 0.02 |
| DBP | 0.65 | ND | ND | 2.8 | 2.0 | 1.8 | 4.1 | 2.7 | 0.42 | 0.4 | 0.2 | 0.1 | 0.1 | ND | ND |
| SD | 0.02 | – | – | 0.1 | 0.1 | 0.1 | 0.15 | 0.2 | 0.025 | 0.02 | 0.015 | 0.02 | 0.02 | – | – |
| DEHP | 0.13 | ND | ND | 1.3 | 0.7 | 0.55 | 3.7 | 0.9 | 0.3 | ND | ND | ND | ND | ND | ND |
| SD | 0.02 | – | – | 0.25 | 0.15 | 0.02 | 0.2 | 0.02 | 0.015 | – | – | – | – | – | – |
| S-RODP | |||||||||||||||
| DEP | 5.9 | ND | ND | 2.5 | ND | ND | ND | ND | ND | ND | ND | ND | 0.67 | 0.30 | ND |
| SD | 0.15 | – | – | 0.25 | – | – | – | – | – | – | – | – | 0.01 | 0.02 | – |
| DBP | 0.33 | ND | ND | 0.65 | 0.28 | 1.3 | 0.23 | ND | ND | 1.0 | 0.54 | ND | ND | ND | ND |
| SD | 0.02 | – | – | 0.03 | 0.02 | 0.02 | 0.02 | – | – | 0.07 | 0.04 | – | – | – | – |
| DEHP | 0.04 | ND | 0.07 | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| SD | 0.005 | – | 0.001 | – | – | – | – | – | – | – | – | – | – | – | – |
LOD in mg/L: DEP = 0.009, DEHP = 0.009. Experimental conditions: volume of solution: 100 mL; TEMP. 30 °C; pH: 8; contact time: 72 h