The aim of this study was to determine the effectiveness of dairy wastewater treatment in the integrated technology based on the simultaneous use of the activated sludge method (AS) and a hydrophyte system (HS) (AS–HS), in this case, common reed (Phragmites australis) or common cattail (Typha latifolia). Experiments were conducted in an innovative reactor exploited in the fractional-technical scale at the loads of 0.05 mg BOD₅/mg_.d.m. d (biochemical oxygen demand) and 0.10 mg BOD₅/mg_.d.m d. The AS–HS enabled improving the removal effectiveness of biogenes characterized by concentrations of N_tot., N-NH₄ and P_tot.. In contrast, the integrated system had no significant reducing effect either on concentrations of organic compounds characterized by BOD₅ and chemical oxygen demand parameters or on the structure of AS in the sequencing batch-type reactors.

The cultivation and utilization of microalgae is now a intensively developing area of research. Some species of microalgae, under appropriate conditions, accumulate large amounts of lipids in the cells. This lipids have a suitable profile of fatty acids for biodiesel production. The culture of...

The aim of this study was to determine the effect of electromagnetic microwave radiation on the activity of microorganisms during the anaerobic digestion of dairy wastewater. The substrate used in the study was a model dairy wastewater prepared with the use of milk powder. The anaerobic sludge...

The aim of the study was to determine the possible use of the effluent, produced in the process of the anaerobic decomposition of organic substances, as a medium in the cultivation of microalgae Chlorella vulgaris. The characteristics of efficiency and kinetic of algae growth rate was determined....

Stage, which is still difficult for researchers is extraction of the lipids, especially the cell disruption stage prior to the extraction process. Strength of cell walls of microalgae makes lipids difficult to access. The aim of the experiment was to determine the influence of microwave electromagnetic radiation on the efficiency of lipid extraction from Botryococcus braunii microalgae by Bligh & Dyer method. he use of microwave heating to disintegrate the biomass of microalgae allowed to increase the yield of lipids from 18% in Stage I to 38% in Stage II in incubation time of 15 min in 45 °C.