분리공정 ppt 4조-기말1 Down WF
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분리공정 ppt 4조-기말1 Down
분리공정 ppt 4조-기말1
분리공정 ppt 4조-기말1
Membrane Separations
2010101165 Sin song yi
2008105463 Ahn joon sung
2007105316 Lee woo yong
Separation Process
seawater desalination
Contents
1. Choice of Subject
2. Seawater Desalination
3. Process of Seawater Desalination
4. Reverse Osmosis
5. Reference
Speaker : Sin song yi
Choice Of Subject Reverse Osmosis
Desalination of
Ground water
Produce ultra-pure water
Waste water disposal
Food industry
Other industries
Speaker : Sin song yi
Speaker : Sin song yi
System
energy consumption
Strength
Weakness
Evaporation
18~25
[kWh/㎥]
High purity of Produced water
Energy intensive
Electro-dialysis
18[kWh/㎥]
Easy to respond to changes in temperature
Energy intensive
Large scale device
Reverse osmosis
7[kWh/㎥]
Law energy consumption
Easy operation
Durability of membrane
Need pretreatment
Seawater desalination
`Saudi Arabia Show I-ba plant`
`UAE Al-Taweelah plant`
Seawater desalination
Speaker : Sin song yi
`Israel Ashkelon plant`
`Saudi Arabia Jeddah plant`
Seawater desalination
Reverse Osmosis
seawater
Na+
Na+
Cl-
Cl-
H2O
H2O
H2O
H2O
H2O
H2O
H2O
Desalination
H2O
H2O
H2O
H2O
H2O
H2O
H2O
Cl-
Cl-
Na+
Na+
freshwater
brine
Speaker : Ahn joon sung
Process of Seawater desalination
`mimetic diagram`
1. Water intake
2. Pretreatment : remove debris and impurities
(fine sand, solids, microorganisms for life of
membrane. & inject Antiscalant, Biocide etc)
3. Reverse Osmosis : extract fresh water from seawater by membrane.
Speaker : Ahn joon sung
Reverse Osmosis
Osmosis
Low concentration
High concentration
Semipermeable membrane
Driving force is chemical potential by difference of solute concentration.
H
H is osmotic pressure.
Speaker : Ahn joon sung
Osmotic Pressure π = CRT
π : Osmotic pressure
C : Molar concentration of solution
R : Gas constant
T : Temperature
Reverse Osmosis
Reverse Osmosis
High concentration
Low concentration
Semipermeable membrane
pressure
When put on high-pressure than osmotic pressure,
The water in high-concentration side is moves to low-concentration side.
Osmotic pressure : 20 bar / Reverse osmotic pressure : 60 ~ 70 bar.
Speaker : Ahn joon sung
Reverse Osmosis
출처 : http://www.ecofuturenetwork.co.kr/
Speaker : Ahn joon sung
Speaker : Ahn joon sung
Reverse Osmosis
Reverse Osmosis
Speaker : Ahn joon sung
High water Flux & salt Rejection
High Strength
Ability to form thin barrier
Chemical stability in high pH
Long durability of membrane
Tolerance to microorganism
Wide range of operation & Low price
Reverse Osmosis Membrane
for Seawater Desalination
Material of membrane
Crosslinked aromatic polyamide
Aromatic polyamide
Arylkyl polyamide/polyurea
Cellulose
[문서정보]
문서분량 : 17 Page
파일종류 : PPTX 파일
자료제목 : 분리공정 ppt 4조-기말1
파일이름 : 분리공정 ppt 4조-기말1.pptx
키워드 : 분리공정,ppt,조,기말,4조,기말1
자료No(pk) : 15122396
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