Table 6 Order of the significant effects of factors on the responses. Minus and plus signs indicate negative and positive, respectively.

From: Removal of lead from aqueous solutions using three biosorbents of aquatic origin with the emphasis on the affective factors

Responses

Factors

PbR

E+

 > 

A–

 > 

F–

 > 

G–

 > 

C+

PbO

E+

 > 

A–

 > 

F–

    

PbC

E+

 > 

G-

 > 

F+

 > 

A+

 > 

D−

  1. PbR: Concentration of Pb adsorbed by scales of Rutilus kutum; PbO: Concentration of Pb adsorbed by scales of Oncorhynchus mykiss; PbC: Concentration of Pb adsorbed by shells of Cerastoderma glaucum; A: Biosorbent dosage; C: Contact time; D: Temperature; E: Initial concentration; F: pH; G: Salinity.
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