Process Selection Considerations
Selection of an activated-sludge process for BOD removal and nitrification is a function of many considerations including specific site constraints, compatibility with the existing process, compatibility with existing equipment, present and future treatment needs, level of capability of the operating staff, capital costs, and operating cost.
Complete-mix activ
Environmental factors
organic matter (source of carbon and energy)
oxygen availability
nutrient (N,S, P) availability
temperature
pH
Eh
salinity
water activity
The addition of nutrients and electron acceptors
Stimulate activities that promote degradation of pollutant by the indigenous or existing microbial populations in the contaminated area
The addition of specific metabolic ca
Bacteriophage는 숙주 세포의 핵산, 뉴클레오타이드, 리보솜 등의 물질을 자원으로 삼아 자신의 유전물질을 복제하여 증식한다. 세포가 분열하기 전에는 유전물질과 그 외의 세포를 구성하는 다양한 물질들의 양이 증가하기 때문에 generation time이 짧은 세포를 숙주로 삼을수록 bacteriophage와 같은 바이러스가
microbial activity of Cronton cajucara Benth linalool-rich essential oil on artificial biofilms and planktonic microorganism. Oral Microbiol Immunol. 20:101-105.
는데, 효과적으로 치면세균막을 관리함으로써 질환을 예방할 수 있다 Axelsson P. (2003). Preventive materials, Methods and programs. 4th ed. Karlstad:Quintessence;37-262.
. 치면세균막관리를 위해 가장
The Human Gastrointestinal Tract인간의 소화기관
consists of stomach, small intestine, and large intestine
위, 작은 창자, 큰 창자로 구성되어 있다.
Responsible for
Digestion of food 음식물 소화
Absorption of nutrients 영양소 흡수
Production of nutrients by the indigenous microbial flora
고유미생물에 의한 영양소 생산
Contains 1013 to 1014