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
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
Ⅰ. 개요
1978년에 발생된 「러브 캐널」사건으로 과거에 투기된 유해 폐기물에 의해 오염된 토양의 정화 책임 문제를 유효하게 대처하기 위하여 1980년에 「포괄적 환경대책 보상책임법(CERCLA, 통칭 수퍼 펀드법)」이 제정되었고, 그 후 1986년에 이 법은 대폭 개정되어 「수퍼 펀드 수정 및 재수권법(SALA
most students are educated in government school and their education facilities are not good.
Some teachers in government school think that they don't need to teach for student. Because the student's job is determined by succession. Even 25% of elementary school teacher don't show up.
Two classes get together in the same place and students are crouching in the hallway to study by themselves.
waste of money to invest in temporary residential areas because of Korea's physical geography. Many evident circumstances, however, prove that Korea is never safe from natural disasters.
A typhoon is needless to point out. A typhoon forms over the northwestern part of the North Pacific, and 23 typhoons on the average move northward and arrive at Korea. Especially, the typhoons "Rusa" and "Maemi"