water Desalination plant
What Did Doosan Develop?
(MSF) Multi-Stage Flash Distillation: Seawater Is Heated And Evaporated,
After Which The Steam Is Condensed to Produce Desalinated Water.
What Is The Differentiation?
The Improvement of Speed and Quality
RO (Reverse Osmosis Membrane)
• A Process That Produces Water by Passing Fine Semi-Permeable Membranes.
• Doosa
water flux
Superior salt and organic rejections
Pressure compaction resistance
Wider operating temperature range (0 C–45 C) and pH range (from 1 to 11)
Higher stability to biological attack
Chlorine and fouling susceptibility
The key point of the RO membrane
Flux
Salt rejection
※ Problems
- fouling
- permeability
- energy consumption
Fouling
Main cause
- algae, mic
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