Advanced UF Membranes Water Reuse & Environmental Consulting! 주식회사미래엔지니어링 TEL FAX

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1 Advanced UF Membranes Water Reuse & Environmental Consulting! 주식회사미래엔지니어링 TEL FAX

2 Agenda Ultrafiltration 개요 Products 소개 Technology References 2

Basics of Ultrafiltration 바이러스제거가가능한수처리막은 UF 와 RO RO 로제거가능한물질 UF 로제거가능한물질 MF UF RO MF 로제거가능한물질 유기고분자물질 콜로이드 용해된유기물 박테리아바이러스용해된염 꽃가루 효모 1000 nm 100 10 1 0,1

3 Basics of Ultrafiltration 바이러스제거가가능한수처리막은 UF 와 RO RO 로제거가능한물질 UF 로제거가능한물질 MF UF RO MF 로제거가능한물질 유기고분자물질 콜로이드 용해된유기물 박테리아바이러스용해된염 꽃가루 효모 1000 nm ,1 nm 100 µm ,1 0,01 0,001 µm 머리카락 육안확인가능물질 헤모글로빈 최소미생물 바이러스 MF : Microfiltration Membrane UF : Ultrafiltration Membrane RO : Reverse Osmosis Membrane 3

UF 의물질제거능력 Giardia ca. 8-15 mm Cryptosporidium ca. 4-6 mm Escherichia Coli 0.5-1.

4 UF 의물질제거능력 Giardia ca mm Cryptosporidium ca. 4-6 mm Escherichia Coli mm ( 대장균 ) MS 2-Virus (Coliphage) ca mm Bacillus Subtilis ca. 0,3 µm UF Poresize UF ca µm Poresize MF ca. 0.2 µm 4

5 UF 의기본공정 ü Chemical Backwash System - 소독 / 살균제 (NaOCl) - 알칼리 (NaOH) - 산 (HCl, H 2 SO 4 ) 사용 5

6 Process 설명 Ⅰ UF 멤브레인의적용 Process Water Production from River Water by UF and RO Axiva GmbH, Universität Bremen 6

7 Process 설명 II 재래식 vs 멤브레인공법 재래식 멤브레인공법 운영조작이어려움 잦은여재교체 계절별수질편차 넓은부지필요 초기투자비적음 유지보수비용큼 운전이쉬움 멤브레인수명 5-7년 처리수수질일정 부지적게소요 초기투자비높음 유지보수비적음 7

8 Products 제품 Grade Plus 5000SB Type UF UF UF Filtration mode I/O I/O I/O 길이 [mm], (A) Module data Hollow fiber data Typical operation parameter Module 외경 [mm] 외장재료 PVC-U PVC-U PVC-U End cap 재료 PVC-U PVC-U PVC-U End cap coupling SS (sealing EPDM) SS (sealing EPDM) SS (sealing EPDM) 최대 Operation 압력 [bar] Pore size [ μm ] Fiber 재료 PES PES PES Fiber 외경 / 내경 [mm] 4.3/ /0.9 - /1.5 유효막면적 [m 2 ] Operating 온도 [ ] Max.40 Max.40 Max.40 ph 범위 [operation/ clean] 3~10/1~13 3~10/1~13 3~10/1~13 SDI / 탁도 [NTU] >0.5~<3/<0.1 >0.5~<3/<0.1 >0.5~<3/<0.1 Filtering 유량 /backwash [m 3 /h] TMP Filtering/backwash [bar] Cleaning chemicals [ppm] 1.8~4.2/ 6.0~ ~0.8/ 0.3~2.5 (<10) 3.0~7.0/ 10.0~ ~0.8/ 0.3~2.5(<10) Free Cl max. 200 ppm or 200 ppm/h, H 2 O 2 max. 500 ppm 1.8~4.2/ 6.0~ ~0.8/ 0.3~2.5(<10) Note Seven bore Seven bore Single bore 8

9 UF 적용안 다양한용도로사용하기적합한솔루션 원수 혼탁 (Turbidity) 기생충 (cryptosporidium, Giardia) 바이러스박테리아유기물살충 (Pesticides) 경수 (Hardness), 황산염염 Ultrafiltration 응집 활성탄 Ultrafiltration Ultrafiltration 침전 Ultrafiltration Nanofiltration Reverseosmosis Ultrafiltration 활성탄 상수 / 산업용수 / 발전용수 / 폐수 9

025 μm ) 제거가능 염소저항성이타병원균대비수만배인크립토스포리디움, 지아디아제거가능 파열압력 10bar 이상 UF 높은내화학성 낮은운전압력 내오염성우수 내화학성이우수한

10 Multibore Ò Membranes Fiber 특징내용 파손이잘되지않는 Fiber 바이러스제거 높은기계적강도 Fiber 외경 4.3 mm 7 개의 Bore( 내경 0.9 mm ) 보유 Pore size 0.02 μm수준으로바이러스 (0.025 μm ) 제거가능 염소저항성이타병원균대비수만배인크립토스포리디움, 지아디아제거가능 파열압력 10bar 이상 UF 높은내화학성 낮은운전압력 내오염성우수 내화학성이우수한 PES 재질 1 ~ 2bar 친수성우수한 PES 재질 0.9 mm 4.3 mm Bore Size 변경 : 0.8 mm è 0.9 mm효과 모세관내부의압력손실이 40% 이상감소 여과와역세과정중모세관전길이방향에서동일한유량 (flux) 을보임. 역세및 CIP 효율이크게증가 10

11 Modules; Hydrodynamic Optimization I Annular Gap vs Core Tube inge capillaries housing Annular Gap Tube 설계방식으로물의흐름이균일하며역세시세정효율이극대화되고장기운전안정성이보장됨 feed permeate 수력학적인관점에서보면 중앙집수관방식의모듈이 덜효과적임 à 압력용기에 1 개이상의 모듈이설치된다면배출수 가다른모듈을통해 흐르게됨 A 사 feed permeate central permeate tube Capillary housing 11

12 Modules; Hydrodynamic Optimization II Annular Gap vs Core Tube Core tube 모듈의단점 : 역세중에물이흐르는단면적이증가함에도투과유량이감소하는구조로인해투과속도가급격히떨어지고, 결국고르지못한유속분포를보임 à 역세중에낮은세정효율 Core tube construction with core tube Annular gap construction with an annular gap Annular gap 튜브의장점 : 유량역전 (flow paradoxon) 현상이발생하지않음 à 역세중에높은세정효율, 장기간최상의성능 velocity area = L 2r p volumeflow velocity volumeflow area = L 2r p Radius r Radius r 12

13 Modules; Hydrodynamic Optimization IV Inside-out vs Out- inside Module Fornation of fouling layer Backwash 부유물질 Filtration Out-in Feed In-out Filtrate Filtrate Fornation of fouling layer Backwash Filtration In-out 의경우표면적이넓은부분에서좁은부분으로역세를하므로낮은압력에서도운전이용이하며 부유물질의완전제거가용이하여역세효율이높아짐 부유물질이완전제거된상태에서운전이되어장시간운전이가능함 Feed 13

14 Modules; Hydrodynamic Optimization IV Inside-out vs Out- inside( 침지형 ) Out-in In-out Concentration Factor Average Concentration Factor = 19,5 Concentration Factor Average Concentration Factor = 5, Time [Hours] Time [Hours] ü Out-in 비해 In-out의적용으로인해역세효율이높음 ü Backwash CEB CIP를적절히사용하여 module 장기운행능력을극대화시킴 ü Average Concentration Factor은부유물질잔존정도를나타내는수치로 In-out의경우완전제거가가능함 14

Operation of Modules I 단시간의 Backwash 전후에 forward flush 를수행함으로써, 세척의효율성증진과 투과수사용량을줄일수있음 ( 투과수탱크크기감소, 높은회수율 ) Filtration 20 ~ 120 min Cleaning 30 ~ 100 sec

15 Operation of Modules I 단시간의 Backwash 전후에 forward flush 를수행함으로써, 세척의효율성증진과 투과수사용량을줄일수있음 ( 투과수탱크크기감소, 높은회수율 ) Filtration 20 ~ 120 min Cleaning 30 ~ 100 sec Filtration 20 ~ 120 min Filtration 20 ~ 120 min Forward Flush 10 ~ 30 sec Backwash 10 ~ 40 sec Forward Flush 10 ~ 30 sec Backwash Backwash ( 역세 ) 전세척 ( 역세 ) 후세척 15

16 Operation of Modules II ü 완전여과 (Dead-end filtration) 중모세관 (capillary) 의전영역에걸친 cross flow 를유도하기위해서는매 forward flush/backwash 연속공정후유입방향을바꾸어주어야함 ü Backwash 중전영역에걸친 crossflow 를유도하기위해서는 backwash 의유입방향또한바꾸어주어야함 ü Top Filtration 과 Bottom Filtration 을병행할수있어효율적이고, 효과적인 Filtration 및세척이이루어짐 Top filtration mode Filtration Forward Backwash Forward flush flush Bottom filtration mode Filtration Forward Backwash Forward flush flush 16

17 Integrity Test 투명한공급수배관 Module 내결함확인용이 ( 누수발생시연속적인공기방울감지 ) 짧은길이로제작되어조류발생가능성감소 음용수승인을받은재료 17

18 모듈의개선항목 U-5000 Advantages 운전비용의최소화 장점 관련비용 수직설치 낮은배관비용 설치공간절약 투자비 ( 감가상각 ) 막결함평가용이 유지보수비 멀티보어멤브레인 외곽집수장치 낮은운전압력높은안정성막파손방지 긴수명 시스템무결성 멤브레인교체비용화학약품사용량에너지사용량 모듈설계 섬유격자배열 일정유속유지 회수율증가 생산성 물흐름최적화 역세최적화 18

19 Standard Rack Design Rack: Standard Rack U 5000 ( 수직 ) 19

20 References Worldwide Highlights Good reference and reputation all over the world! GE, Ukraine (2,000m 3 /h) Sea Water Desal, Italy (1,000m 3 /h) Municipal Drinking Water Switzerland (800m 3 /h) Power Plant Southern China (960 m 3 /h) Samsung Korea (360 m 3 /h) Abu Dhabi Sea Water Desalination 1,200 m 3 /h Cooling Tower South Africa (250 m 3 /h) 20

Overview of Selected References Type of Water Project Capacity [m³/h] Type of Module Commissioned Surface-/ waste water Ukraine 2000 dizzer 5000 2005 Sea Water Middle East 1200 dizzer 5000plus 2008*

Backwash water Germany 600 dizzer 5000 SB 2005 Surface water Russia 360 dizzer 5000plus 2007* Surface water Germany 360 dizzer 5000 2007 Surface water Korea 350 dizzer 5000 2006 Recycling Mix China

21 Overview of Selected References Type of Water Project Capacity [m³/h] Type of Module Commissioned Surface-/ waste water Ukraine 2000 dizzer Sea Water Middle East 1200 dizzer 5000plus 2008* Sea Water Italy 980 dizzer * Surface water China Power Plant 900 dizzer Surface water Switzerland 800 dizzer Waste water China Petrochemical Plant 660 dizzer * Backwash water Germany 600 dizzer 5000 SB 2005 Surface water Russia 360 dizzer 5000plus 2007* Surface water Germany 360 dizzer Surface water Korea 350 dizzer Recycling Mix China Power Plant 330 dizzer Waste water China Chemical Plant 320 dizzer Process water China Petrochemical Plant 300 dizzer Surface Water Russia 270 dizzer 5000plus 2007* River Water China Power Plant 270 dizzer Surface Water Russia 250 dizzer 5000plus 2007* Surface Water Russia 250 dizzer Cooling Water South Africa 250 dizzer Surface Water Italy 240 dizzer 5000plus 2007* Well water Germany 228 dizzer Surface water Germany 220 dizzer Well water Germany 185 dizzer Well water Germany 180 dizzer River Water Chemical Plant 172 dizzer Surface Water Belgium 160 dizzer 5000plus 2007 River Water Russia 160 dizzer 5000plus 2007 Waste Water India 150 dizzer 5000plus 2007* Well water Germany 145 dizzer Surface water Germany 120 dizzer 3500p 2003 Well water Germany 120 dizzer Surface water Kazakhstan 100 dizzer * Plants to be commissioned 21

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<C1A4C3A5BAB8B0EDBCAD2E687770> Korea Environment Institute 공업용수 Chelate Resin Exchanger 생산공장 Micro Filter