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
RO) 방식에 이어 이 분야에서도 세계적 기술력을 입증하고 있다.
또한 두산중공업은 미국의 두산하이드로테크놀로지와 함께 하수, 폐수를 산업용수로 재이용하는 수처리설비 분야에 진출했다. 현재 전통방식(Conventional Type)에서 최첨단의 Membrane을 활용한 MBR (Membrane Bioreactor) 방식 등 다양한 수처리 설
A B S T R A C T
There are many considerable factors in selecting the membrane process. Among these, whether to use a submerged or a pressurized system is a common question and typically requires a detailed evaluation.
The major objective of this study is to compare the performance of pressurized and submerged systems without any pretreatments and with coagulation. In addition, tangential