| Title |
Microbiology of Hanging Biological Contactor ( HBC ) |
| Authors |
정용 ; 정재춘 ; 권숙표 ; 이수환 ( Yong Chung ; Jae Chun Chung ; Sook Pyo Kwon ; Soo Hwan Lee ) |
| Abstract |
The Hanging Biological Contactor(HBC), which has been developed in 1984 and currently in experimental stage in Korea and Japan is a very new fixed-film process utilizing attached microorganisms on the polyvinylydene-chloride fiber media. It is similar to rotating biological contactor process but the media immersed in the wastewater does not rotate and appropriate air is supplied by the aeration apparatus underneath. Thes study was to identify HBC microorganisms and to determine their relative abundance. One pilot scale and two full scale Hanging Biological Contactors(HBC) were investigated for various microorganisms. Microorganisms found were pretty much similar to those fixedfilm reactors such as rotating biological contactors and trickling filters. In the start-up study of pilot scale HBC plant, Beggiatoa became highly populated in the first stage and the species diversity index increased along the stages with the time lapse. When the aeration level increased, the populations of Beggiatoa and Paramecium decreased, while those of Vorticella, Linonotus, Diplogaster(nematode), Philodina(Rotifer), and annelid Worms increased. Microorganisms also differ abundance by stages. More populations of Beggiatoa, Peranema, Amoeba, Paramecium, Trachelocerca, Aspidrsca, Linonotus, Oxytricha, Vorticella, Opercularia, Carchesium, Tokophrya, Philodina, and annelid Worms in the first 2 stages occured, while Arcella, Difflugia, Stylonychia, Trachelophyllum and Epistylis were shown higher abundance in the last stage (stage 3 and 4). |