Modelling of biological phenol removal in draw-fill reactors using suspended and attached growth olive pulp bacteria

Modelling of biological Cr(VI) removal in draw-fill reactors using microorganisms in suspended and attached growth systems

“…Boles et al (2004) also refers that, concerning the packed-bed reactor, attached growth processes lead to excessive biomass growth in the reactor producing a biofilm community that provides "insurance effects" for the microorganisms. In such a way, the biofilm matrix can provide protection from physical injury and the close proximity of microorganisms may allow metabolic interactions, promote simple genome mutations and enhance communication between cells thus facilitating coordinated behaviour (Tziotzios et al, 2008).…”

“…In addition, the compact size of these systems reduces drastically the capital cost while operating cost is minimal in cases where natural aeration takes place. In recent years it has become comprehensible that at least for small plants or the enhancement and enlargement of existing plants, attached growth systems seem to be a viable solution (Vayenas, 2011). For this reason investigators have started to develop mathematical models in their efforts to design, operate and improve these systems.…”

Kinetic studies on the removal of phenol by MBBR from saline wastewater

“…Results of this study were similar to present study. Rozich et al, reported that phenol was treated by activated sludge, the range of μ max and amount of K s were 1.92-8.64 d −1 (by average: 4.56 d −1 ) and 75 mg/l in their investigation, respectively [ 19 ]. In the study by Yalcin et al, about phenol removal from wastewater, the amounts of μ max and K s were calculated as 4.432 d −1 and , 87.4 mg/l, respectively.…”

“…Christian et al studied phenol removal (754 mg/l) by Sulfolobus Solfataricus and calculated the kinetic parameters [ 18 ]. In the study of modeling of phenol removal by using attached growth olive pulp bacteria, the kinetic coefficients of μ max , K s and K i were determined as 1.296 d −1 , 19.23 mg/l,1571 mg/l, respectively [ 19 ]. In another research performed by Rozich et al which phenol was treated by activated sludge, the range of μ max was equivalent to 1.92- 8.64 d −1 (average:4.56 d −1 ) and amount of K s was 75 mg/l [ 20 ].…”

Removal of the 2-Mercaptobenotiazole from Model Wastewater by Ozonation

“…The measurement results have been processed using the following Monod equation (see (8), [22], and for Haldan equation see (9)) [23, 24]: $\begin{array}{c}{r}_X=r_{X,\max }\frac{S}{K_S+S},\end{array}$ $\begin{array}{c}{r}_X=r_{X,\max }\frac{S}{K_S+S+\left(S^{\mathrm{2}}/K_I\right)},\end{array}$ where r X and r X ,max⁡ are, respectively, the specific respiration rate and maximum specific respiration rate [mg·g −1 ·h −1 ], and S , K S , and K I are the substrate concentration, half-saturation constant, and inhibition constant [mg·L −1 ]. The values of kinetic parameters in (8), and (9) were determined using the grid search method.…”