Characterisation of Factors in the Bacterial Leaching of Nickel Laterites Using Statistical Design of Experiments

2007 ◽  
pp. 66-69
Author(s):  
G.S. Simate ◽  
Sehliselo Ndlovu
Keyword(s):  
Design Of Experiments ◽  
Statistical Design ◽  
Statistical Design Of Experiments ◽  
Bacterial Leaching ◽  
Nickel Laterites

Characterisation of Factors in the Bacterial Leaching of Nickel Laterites Using Statistical Design of Experiments

2007 ◽  
Vol 20-21 ◽  
pp. 66-69 ◽  
Author(s):  
Geoffrey S. Simate ◽  
Sehliselo Ndlovu
Keyword(s):  
Design Of Experiments ◽  
Statistical Design ◽  
Inoculum Size ◽  
Influential Factors ◽  
Fractional Factorial ◽  
Pulp Density ◽  
Statistical Design Of Experiments ◽  
Bacterial Leaching ◽  
Nickel Recovery ◽  
Nickel Laterites

Identifying influential factors in the bacterial leaching of nickel laterites using a mixed culture of chemolithotrophic micro-organisms was explored using the approach of statistical design of experiments. In a series of experiments, pH, particle size, pulp density, type of substrate and inoculum size were statistically combined using a quarter fractional factorial designs 2 5−2 III and tested for their influence on nickel recovery using chemolithotrophic microorganisms. The results indicated that inoculum size was not statistically significant while the rest of the factors were statistically significant. Under the ranges studied the interaction between the variables was found to be weak. The results also showed that recovery was maximized at low pH and low pulp density. In the range studied, particles of less than 38μm had a negative influence on nickel recovery. Sulphur substrate also showed better effects than pyrite.

STATISTICAL DESIGN OF EXPERIMENTS FOR THE Cr(VI) ADSORPTION ON WEED Salvinia cucullata

2013 ◽  
Vol 12 (3) ◽  
pp. 465-474 ◽  
Author(s):  
Saroj Sundar Baral ◽  
Ganesan Surendran ◽  
Namrata Das ◽  
Polisetty Venkateswara Rao
Keyword(s):  
Design Of Experiments ◽  
Statistical Design ◽  
Statistical Design Of Experiments

Study of surface modification of recycled ultrafiltration membranes using statistical design of experiments

2021 ◽  
Vol 23 ◽  
pp. 100978
Author(s):  
L. Rodríguez-Sáez ◽  
J. Landaburu-Aguirre ◽  
S. Molina ◽  
M.C. García-Payo ◽  
E. García-Calvo
Keyword(s):  
Surface Modification ◽  
Design Of Experiments ◽  
Statistical Design ◽  
Statistical Design Of Experiments ◽  
Ultrafiltration Membranes

scholarly journals Optimization of Galena Flotation Process of Irankouh Complex Ore Using A Statistical Design of Experiments

2015 ◽  
Vol 10 (Special-Issue1) ◽  
pp. 626-636 ◽  
Author(s):  
Soroush Shahreza ◽  
Seyed Shafaei ◽  
Mohammad Noaparast ◽  
Mehdi Sarvi
Keyword(s):  
Design Of Experiments ◽  
Statistical Design ◽  
Statistical Design Of Experiments ◽  
Flotation Process
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