Preparation and Mechanism of a New Enhanced Flocculant Based on Bentonite for Drinking Water
Table 4
The influence of additives on coagulation behaviors of BTA with 20% PAC (200NTU diatomite suspension).
Ferrous sulfate (%)
Aluminium sulfate (%)
BTA (mg/L)
Rate of deturbidity (%)
Settling time (s)
0
20
100
98.0
40
5
15
100
98.2
40
10
10
100
98.1
40
15
5
100
97.7
40
20
0
100
97.7
50
—
—
PAC (100)
98.4
60
—
—
PAC (50)
97.6
90
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