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Table 5 Selection of different economic and operational statuses for an optimum point

From: Improved biodegradability of hardly-decomposable wastewaters from petrochemical industry through photo-Fenton method and determination of optimum operational conditions by response surface methodology

Parameter

GOAL

Importance

Inlet COD

in range

***

H2O2

minimize

***

Fe2+

minimize

***

TDS

in range

***

BOD5 (OUT)

in range

***

COD (OUT)

in range

***

BOD5/COD (ratio)

maximize

*****