BULKING AND BULGING PROBLEMS CAUSED BY FILAMENTOUS MICROORGANISMS

In this study, eukaryotic microorganisms, filamentous microorganisms and the floe composition of activated sludge were examined microscopically in samples gathered weekly during a six months period from the activated sludge process of "Adasu Wastewater Treatment Plant" where domestic and industrial wastewater of the city of Adapazari is treated. Arcella spp. is the most observed eukaryotic microorganism during the six months period. No bulking and bulging was observed in the activated sludge system of the wastewater treatment plant. Filamentous microorganisms, messenger of bulking and bulging, were identified. These are N. limicola and Type 0803 etc. species. For this reason, the growth of future filamentous microorganism species has to be watched