Research Article

Mineralization of Quinoline by BDD Anodes: Variable Effects and Its Effluent Characteristics

Table 2

orthogonal test results.

Number (current density) (mA cm−2) (electrolysis time) (h) (Na2SO4 concentration) (mol L−1)Quinoline removal (%)ACE (×10−2)

111140.24.02
212261.84.22
313376.84.16
421246.33.16
522385.94.17
623191.73.36
731374.24.00
832192.73.40
933299.42.74
Quinoline removal 178.8160.6224.5
223.8240.3207.4
266.2267.8236.9
59.653.574.8
74.680.169.1
88.789.378.9
29.135.79.8
Factors 
Primary → secondary
Optimal condition
ACE12.40 × 10−211.18 × 10−210.78 × 10−2
10.69 × 10−211.79 × 10−210.12 × 10−2
10.14 × 10−210.26 × 10−212.33 × 10−2
4.13 × 10−23.73 × 10−23.59 × 10−2
3.56 × 10−23.93 × 10−23.37 × 10−2
3.38 × 10−23.42 × 10−24.11 × 10−2
0.75 × 10−20.51 × 10−20.74 × 10−2
Factors 
Primary → secondary
Optimal condition

Note: () is the sum of tested index corresponding to the levels 1, 2, and 3 under the same factor; () is (); is the difference of (max) and (min) under the same factor.