Aerobic treatment of wastewaters in the inverse fluidised bed biofilm reactor

Optimal Aerations in the Inverse Fluidized Bed Biofilm Reactor When Used in Treatment of Industrial Wastewaters of Various Strength

“…A reduction in COD initially increased, and then decreased with an increase in u. For example, it can be noticed in Figure 4 liquid) area increased, and consequently the amount of the oxygen supplied for biomass growth increased [1,14]. for the air velocities greater than 0.014 m/s, the degradation rate of the constituents of the wastewaters was the controlling factor of the treatment process [3,15].…”

“…Sokół and Korpal [1] have established that the optimal ratio (V b /V R ) for a FBBR when used in biological wastewater treatment was equal to 0.55. Therefore, in this study experiments were performed for the ratio (V b /V R ) = 0.55.…”

“…Then the culture was incubated for approximately 48 h to encourage cell growth and the adhesion of freely suspended biomass on the particles. The air was supplied at the flow rate of 0.03 m 3 /s and this was found to be sufficient for biomass growth [1,3]. The pH was controlled in the range 6.5 -7.0 and the temperature was maintained at 28˚C -30˚C.…”

“…This was possible because the reactor was operated at the ratio (V b /V R ) = 0.55 which was smaller than the critical ratio (V b /V R ) cr [1,9]. On the other hand, the air velocities u were smaller than the critical velocity u cr at which the entire bed settled at the reactor bottom.…”

“…Biological wastewater treatment conducted in systems based on activated sludge requires retention time of many days [1,2]. On the other hand, the same treatment can be achieved in a fluidized bed biofilm reactor (FBBR) in retention time of several hours [1,3].…”

Optimal Aerations in the Inverse Fluidized Bed Biofilm Reactor When Used in Treatment of Industrial Wastewaters of Various Strength

“…A reduction in COD initially increased, and then decreased with an increase in u. For example, it can be noticed in Figure 4 liquid) area increased, and consequently the amount of the oxygen supplied for biomass growth increased [1,14]. for the air velocities greater than 0.014 m/s, the degradation rate of the constituents of the wastewaters was the controlling factor of the treatment process [3,15].…”

“…Sokół and Korpal [1] have established that the optimal ratio (V b /V R ) for a FBBR when used in biological wastewater treatment was equal to 0.55. Therefore, in this study experiments were performed for the ratio (V b /V R ) = 0.55.…”

“…Then the culture was incubated for approximately 48 h to encourage cell growth and the adhesion of freely suspended biomass on the particles. The air was supplied at the flow rate of 0.03 m 3 /s and this was found to be sufficient for biomass growth [1,3]. The pH was controlled in the range 6.5 -7.0 and the temperature was maintained at 28˚C -30˚C.…”

“…This was possible because the reactor was operated at the ratio (V b /V R ) = 0.55 which was smaller than the critical ratio (V b /V R ) cr [1,9]. On the other hand, the air velocities u were smaller than the critical velocity u cr at which the entire bed settled at the reactor bottom.…”

“…Biological wastewater treatment conducted in systems based on activated sludge requires retention time of many days [1,2]. On the other hand, the same treatment can be achieved in a fluidized bed biofilm reactor (FBBR) in retention time of several hours [1,3].…”

Optimal Aerations in the Inverse Fluidized Bed Biofilm Reactor When Used in Treatment of Industrial Wastewaters of Various Strength

“…A reduction in COD initially increased, and then decreased with an increase in u. For example, it can be noticed in Figure 4 liquid) area increased, and consequently the amount of the oxygen supplied for biomass growth increased [1,14]. for the air velocities greater than 0.014 m/s, the degradation rate of the constituents of the wastewaters was the controlling factor of the treatment process [3,15].…”

“…Sokół and Korpal [1] have established that the optimal ratio (V b /V R ) for a FBBR when used in biological wastewater treatment was equal to 0.55. Therefore, in this study experiments were performed for the ratio (V b /V R ) = 0.55.…”

“…Then the culture was incubated for approximately 48 h to encourage cell growth and the adhesion of freely suspended biomass on the particles. The air was supplied at the flow rate of 0.03 m 3 /s and this was found to be sufficient for biomass growth [1,3]. The pH was controlled in the range 6.5 -7.0 and the temperature was maintained at 28˚C -30˚C.…”

“…This was possible because the reactor was operated at the ratio (V b /V R ) = 0.55 which was smaller than the critical ratio (V b /V R ) cr [1,9]. On the other hand, the air velocities u were smaller than the critical velocity u cr at which the entire bed settled at the reactor bottom.…”

“…Biological wastewater treatment conducted in systems based on activated sludge requires retention time of many days [1,2]. On the other hand, the same treatment can be achieved in a fluidized bed biofilm reactor (FBBR) in retention time of several hours [1,3].…”

Optimal Aerations in the Inverse Fluidized Bed Biofilm Reactor When Used in Treatment of Industrial Wastewaters of Various Strength

“…A reduction in COD initially increased, and then decreased with an increase in u. For example, it can be noticed in Figure 4 liquid) area increased, and consequently the amount of the oxygen supplied for biomass growth increased [1,14]. for the air velocities greater than 0.014 m/s, the degradation rate of the constituents of the wastewaters was the controlling factor of the treatment process [3,15].…”

“…Sokół and Korpal [1] have established that the optimal ratio (V b /V R ) for a FBBR when used in biological wastewater treatment was equal to 0.55. Therefore, in this study experiments were performed for the ratio (V b /V R ) = 0.55.…”

“…Then the culture was incubated for approximately 48 h to encourage cell growth and the adhesion of freely suspended biomass on the particles. The air was supplied at the flow rate of 0.03 m 3 /s and this was found to be sufficient for biomass growth [1,3]. The pH was controlled in the range 6.5 -7.0 and the temperature was maintained at 28˚C -30˚C.…”

“…This was possible because the reactor was operated at the ratio (V b /V R ) = 0.55 which was smaller than the critical ratio (V b /V R ) cr [1,9]. On the other hand, the air velocities u were smaller than the critical velocity u cr at which the entire bed settled at the reactor bottom.…”

“…Biological wastewater treatment conducted in systems based on activated sludge requires retention time of many days [1,2]. On the other hand, the same treatment can be achieved in a fluidized bed biofilm reactor (FBBR) in retention time of several hours [1,3].…”