Table 2 The levels of variables central composite statistical experiment design.

From: Optimization of photochemical decomposition of aniline in aqueous solutions and assessment of effluent toxicity using Pseudomonas aeruginosa ATCC 27853

Factor

Parameter Level

Code

1-

0

1+

Contact time (min)

A

15

67.50

120

pH

B

3

7.50

12

Concentration of aniline(mg/L)

C

1

20.50

40

Dose of NPs (mg/L)

D

10

55

100

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