Abstract
Bioethanol is one of the alternative sources of oil resources which received attention with biodiesel. Many countries produce bioethanol from food sources such as corn and sugarcane, but it causes food-energy conflicts and farmland problem. So it needs to focus on new biomass which is sustainable, renewable, cost-effective and do not occurred any conflicts. Algae are one of the bioma
Sewage that has been aerated
and agitated in order to promote the growth of beneficial microorganisms that break down organic matter.
The activated-sludge process is a
biological method of wastewater treat-ment that is performed by a variable and mixed community of microorganis-ms in an aerobic aquatic environment.
Purpose: to remove settleable organics and floating scum (gr
1. Justifications of the proposed schemes -the structural problem& the chemical injection locations
2. Design impeller and tank type affecting energy efficiency, cost, flocculation size. Design Diffuser Walls and Baffles used for Minimizing Short Circuiting
3. Design launder type, structure, sludge and scum model
Filtration의 세번째 key concept 이유: (to promote readily biodegradabl
Grit chamber
Definition
Remove the grit and inorganic matter over 0.2mm in waste water
[ Function ]
Prevent abrasiona and damage of machine equipment
Prevent Piping system blockage
Prevent adverse effect by deposits
Gravity type chamber
Using the gravity and velocity of waste water
Take the deposits to sludge facility, using sand pump
Aeration type chamber
Using centri
1. Lower expenses and energy requirement,
no need any extra chemical or fuel
2. The lowest maintenance expenses
3. No by-product to treat, able to dispose several pollutants at
a time
4. Lower Rxn Temperature (ambient) comparing existing ones
5. Low Energy consumption and safe proces
In case of commercialized filter, it is attached extra equipment to contro
Filter)
Students learn more when they are relaxed. This is because the affective filter, a mental barrier between the students and the information, is raised when students are nervous or uncomfortable. When the affective filter is high, learners find it harder to understand, process, and remember information.
TPR helps reduce the affective filter because it is less threatening than traditiona
preservation technologies. Various modern technologies are applied to inhibit the growth of micro-organisms in food product as various food-spoilage micro-organisms are exit. Consequently, the techniques are so complicated and diverse to state in one paragraph. This report divides the methods into several categories, physical, biological, and chemical, and introduces each technology briefly.
Biological Contactor), 활성생물막법 (Activated), 침적여과상법(Fluidized Bead Reactor) 등 여러 가지가 있으며, 순환여과에서 가장 많이 이용될 수 있는 방법들이다. 부유식 성장은 일정한 수조 내에
배수와 미생물을 함께 넣어 강한 폭기를 통해 산소를 공급함으로서 부유되어 있는 유기물등을제거하는 방법으로
aeration tank. The organic load on the aeration tank, MLSS concentration, and oxygen demand are uniform throughout the tank. An advantage of the CMAS process is the dilution of shock loads that occur in the treatment of industrial wastewaters. The CMAS process is relatively simple to operate but tends to have low organic substrate concentrations(i.e., low F/M ratios)that encourage the growth of f
1. 고도처리
1.1 고도처리란?
고도처리는 재래식 2차 처리 후 남아 있는 부유물질(SS)과 용존물질 제거에 필요한 추가 처리로 정의된다.
기본적으로 혐기조?무산소?호기조로구성
* 혐 기 조 ? 인축적 미생물(PAO)에 의해 유기물을 이용하여 인을 용출
* 무산소조 ? 호기조에서 반송된 질산