About permeability importance
From the inside which will bite flowing in the water
– Gap among is connected each other and from the place which is high flowing with the low-end place
Is caused by with permeation and power affects in stability
(When there is permeation type, gap hydraulic pressure increase -> Effective stress decrease -> Shear strength decrease -> In stability fa
II. How is CBM formed
Coalbed methane (CH4) forms in one of two ways. During the earliest stage of coalification (the process that turns plant detritus into coal), biogenic methane is generated as a by-product of bacterial respiration. Aerobic bacteria (those that use oxygen in respiration) first metabolize any free oxygen left in the plant remains and the surrounding sediments. In fresh water
1. Introduction
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine
1. 개요
분리막의 사용 목적에 따른 종류별 특성을 조사하고 기초적인 여과이론을 알아본다. 하, 폐수 및 정수 공정에서 분리막의 운전 방식에 따른 특성을 이해하고, 정밀여과(Microfiltration, MF), 한외여과(Ultrafiltration, UF) 분리막을 이용하여 운전 플럭스(FLUX, J) 및 오염제어 인자인 공기량을 조사한다.