Advances in Materials Science and Engineering / 2015 / Article / Tab 7

Research Article

Preparation and Mechanism of a New Enhanced Flocculant Based on Bentonite for Drinking Water

Table 7

The treatment effect for Xinjiang Karamay City drinking water with enhanced flocculant BTA.

NumberTesting itemsChina National Standard
(China GB 5749-2006)
Testing results
(SN. G2013024)
Unit

1Chromaticity≤15<5Degree
2Turbidity≤1 or ≤3<0.5NTU
3Odor and tasteNo foreign order and tasteNo
4Visible matterNoNo
5pH6.5–8.57.92
6Total hardness (as CaCO3) ≤450189mg/L
7Iron≤0.3<0.005mg/L
8Manganese ≤0.1<0.022mg/L
9Copper≤1.0<0.0015mg/L
10Zinc≤1.0<0.0015mg/L
11Cadmium ≤0.005<2.0 × 10−6mg/L
12Lead≤0.01<5.0 × 10−5mg/L
13Volatile phenol (as phenol) ≤0.002<0.002mg/L
14Composite anionic detergent≤0.3<0.05mg/L
15Sulfate ≤25093.82mg/L
16Chloride ≤250109.38mg/L
17Total dissolved solids≤1000304mg/L
18Fluoride ≤1.00.38mg/L
19Cyanide ≤0.05<0.002mg/L
20Arsenic ≤0.01<9.0 × 10−4mg/L
21Selenium ≤0.01<9.0 × 10−4mg/L
22Mercury ≤0.001<9.0 × 10−5mg/L
23Chromium (hexavalent) ≤0.05<0.004mg/L
24Nitrate (as nitrogen) ≤100.45mg/L
25Trichloromethane ≤0.06<2.0 × 10−4mg/L
26Tetrachloromethane ≤0.002<1.0 × 10−4mg/L
27Bacterial colony number≤10030CFU/mL
28Total α radioactivity≤0.5<0.016Bq/L
29Total β radioactivity≤10.038Bq/L
30Oxygen consumption (as O2) ≤31.75mg/L
31Aluminum ≤0.20.092mg/L

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