Activated sludge is a term used both to refer to a widely utilized wastewatertreatment process, and to the solid com-pounds which result from that process.
The activated sludge technique is one of the most commonly used methods for handling human waste in municipal settings around the world, and it can also be employed in the treatment of industrial wastewater.
The goal is to remov
Activated sludge is a term used both to refer to a widely utilized wastewatertreatment process, and to the solid com-pounds which result from that process.
The activated sludge technique is one of the most commonly used methods for handling human waste in municipal settings around the world, and it can also be employed in the treatment of industrial wastewater.
The goal is to remov
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
treatment and fermentation process, After algae produce sugar or starch from carbon dioxide, sunlight and water, those free complex carbohydrates turned into fermentable sources through pre-treatment process - saccharification. Then, it can be changed ethanol form through fermentation by yeast or genetically engineered E.coli and we can produce biofuel from that ethanol. Now, the way of decreasin
2000 B.C - The first recorded (The Susruta Samhita, Sanskrit writing) water purification began with the Egyptians. It is said that impure water should be boiled over a fire, heated in the sun, have a hot iron dipped into it or purified by filtration through sand and course gravel.
A major step in the development of desalination technologies came in the 1940s during World War II when various m
waste treatment cost - capital cost annuity)
Capital cost annuity =
FCI = installed cost of all equipment
interest rate (0.15로 가정)
n = plant life (10으로 가정)
2-2. Aspen Plus를 이용한 공정 모사
2-2.1. Aspen Plus
AspenTech사에서 제작한 엔지니어링 응용 프로그램으로 아스펜 플러스는 화학, 폴리머, 특수 화학, 금속, 광물 및 석탄
water and adequate sanitation for all children." - Regional Priority Goal I
Overall housing conditions seemed to show a slight improvement between 1992 and 2002, at least regarding access to water and the sewage system.
Education can also give more access to knowledge about healthy behavior and increase the tendency to seek treatment when needed
The secondary school net enrolment
Digestion tank production gas is a biogas produced by artificial anaerobic digestion of organic wastes with bacteria in the digestion tank. This can be divided into mergence gas which produce bio-gas by putting more than two of them together, among the organic waste gas, waste water gas, livestock· sewage gas, sewage sludge gas, depending on the type of organic waste. Because they are artificial
wastewater and recycled activated sludge are introduced typically at several points in the 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 ha