2.2 BAC의 특징
2.2.1 BAC의 효과
BAC는 미생물을 이용한다는 점을 제외하고는 기본적으로 Activated Carbon과 동일한 기능을 한다. 그러므로 우선적으로 BAC보다 연구가 활발히 진행되고 있는 AC의 구조적 성능을 먼저 조사함으로 BAC를 이용한 구조물의 성능을 예측 할 수 있을 것이라고 본다. AC를 이용한 콘
this, we can know that axial impeller is not suitable. Also, because of wide width of tank, it has poor mixing.
Second, there is a problem with chemicals. PAC is injected with Cl2, so activation of Cl2 must be restricted.
Also, using alum may cause settling.
Alum lowered pH in localized area. To overcome this problem, we need more alkali materials and it means lots of cost.
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
History and Development of the Activated Sludge Process
- The activated sludge process presently represents the most widespread technology for wastewater purification.
- The invention of the activated sludge process is connected with the efforts of British and American engineers at the end of the last century to intensify biological purification in fixed-film systems.
: wastewa
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.