There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

Direct And Mediated Anodic Oxidation of Organic Pollutants

Activated carbons and low cost adsorbents for remediation of tri- and hexavalent chromium from water.

Bacterial biosorbents and biosorption

Metallurgical recovery of metals from electronic waste: a review.

Chemical compositions and antimicrobial activities of four different Anatolian propolis samples.

In vitro antimicrobial activity of propolis samples from different geographical origins against certain oral pathogens.

Protective effects of Turkish propolis on alcohol-induced serum lipid changes and liver injury in male rats

Antibacterial activity of Propolis versus conventional endodontic disinfectants against Enterococcus faecalis in infected dentinal tubules.

The biodegradation of phenol by a pure culture of Pseudomonas putida was investigated in a continuously fed stirred-tank reactor, under aerobic conditions. The dilution rate was varied between 0.0174 h−1 and 0.278 h−1, covering a wide range of dissolved oxygen and the inhibition region of phenol. Through non-linear analysis of the data, a dual-substrate growth kinetics, Haldane kinetics for phenol and Monod kinetics for oxygen, was derived with high correlation coefficients. Respective biokinetic parameters were evaluated as μm = 0.569 h−1, K
p = 18.539 mg/l, K
i = 99.374 mg/l, K
o = 0.048 mg/l, Y
x/p = 0.521 g microorganism/g phenol and Y
x/o = 0.338 g microorganism/g oxygen, being in good agreement with other studies in the literature. Maintenance factors for both phenol and oxygen were calculated for the first time for P. putida while the saturation coefficient for oxygen, K
o, was genuinely evaluated from the constructed model, not imported or adapted from other studies as reported in the literature. All pertinent biokinetic parameters for P. putida have been calculated from continuous system data, which are most appropriate for use in continuous bioprocess applications.

Multi-substrate growth kinetics of Pseudomonas putida for phenol removal

Bekir Salih

Papers

Chemical compositions and antimicrobial activities of four different Anatolian propolis samples.

In vitro antimicrobial activity of propolis samples from different geographical origins against certain oral pathogens.

Protective effects of Turkish propolis on alcohol-induced serum lipid changes and liver injury in male rats

Antibacterial activity of Propolis versus conventional endodontic disinfectants against Enterococcus faecalis in infected dentinal tubules.

Multi-substrate growth kinetics of Pseudomonas putida for phenol removal