2011. 7. 15
서울특별시 제4회 물산업 신기술 발표회
하폐수 처리 MBR기술 최신 동향
KSMBR
e - MBR ( eco friendly + energy saving )
1
Contents
Development in Wastewater Treatment
5
ECONITY Membrane
10
e-MBR Process
19
MBR Technology References
28
Water Reuse System
36
2
Ssangyong’s MBR Technology 연혁
3
우리나라 공공하수처리시설 방류수 수질기준 변경 연혁
초고도처리
필요
4
Development
in Wastewater Treatment
5
Development in Wastewater Treatment
1970
1980
1990
2000
Future
CAS (Conventional Activated Sludge)
BNR (Biological Nutrient Removal)
MBR (Membrane Bio-Reactor)
6
Conventional
Activated
Sludge
Biological
Nutrient
Removal
(A2O)
Membrane
Bio-Reactor
7
MBR ?
Membrane
BNR
BOD, N, P
Removal
+
SS, Coliforms
Removal
MBR
= (Membrane
Bio-Reactor)
BNR Process
Membrane Unit
Biological N, P Removal Mechanism Physical Barrier for Separation
 Nitrification
 Denitrification
 P Release & Uptake
 BOD Removal
 SS Removal
 Coliforms Removal
8
Quality of Treated Water
Effluent
Parameter
CAS
BNR
(A2O)
MBR
e-MBR
BOD
○
○
◎
◎
Biochemical Oxygen Demand
- Organics indicator
COD
○
○
○
○
Chemical Oxygen Demand
- Organics indicator
SS
○
○
◎
◎
Suspended Solids
- Solids indicator
◎
Total Nitrogen
- Nitrogen(nutrient) indicator
- TKN(organic N+Ammonia) + NOx
T-N
×
○
○
Remark
T-P
×
○
○
◎
Total Phosphorous
- Phosphorous(nutrient) indicator
- Poly P + ortho P
Coliforms
×
×
◎
◎
Coliform Bacteria
Note : ◎ excellent, ○ good, × has no treatment mechanism
9
ECONITY Membrane
10
Principle of Hollow Fiber Membrane
11
Surface of ECONITY Membrane
Outer
Inner
12
Benefits of ECONITY Membrane
ECONITY Hollow Fiber Membrane
Technical Benefits
Economical Benefits
Manufacturing Process
Stretching Method
Porosity: High (above 77%)
Pore Shape: Slit Type
Permeability ↑, Screen Effect ↑
Manufacturing Cost ↓
Material
HDPE(Hydrophilic Coating)
Traditional Stability & Safety
Chemical Resistance: Strong
Life-time: Long
Construction Cost ↓
Nominal Pore Size
0.4 μm (Micro Filtration)
Complete Separation of
Solids & Bacteria
OD/ID/Wall Thickness
0.65/0.41/0.12 mm
High Packing Density
Footprint: Small
Energy Consumption: Low
Operation Flux
0.3~0.5 m3/m2/d
Tolerance of Fouling: Strong
Term of Chemical Cleaning: Long
Membrane Replacement
Cost ↓
Maintenance Cost ↓
Note : Membrane Life time is usually around 8~10 years and may vary subject to influent & operation conditions.
13
ECONITY Membrane Manufacturing Plant
Location : Yongin, Republic of Korea
14
ECONITY Cartridge Module
Permeate
Handle
320W×396H×490L, Weight 7kg
ECONITY Hollow Fiber Membrane
15
ECONITY Frame
Permeate
Air
“M” Type
for Air Distribution Uniformly
Sludge Discharge
Aeration
KMS-6007CF (1,326W×3,233H×2,948L, Q=600m3/day)
16
Features of ECONITY Membrane System
Energy Saving
- Due to high packing density, improved air supply pipe
& dual aeration(fine/coarse bubble)
Easy to Clean & Maintain
- Cartridge module is simple to insert/attach to/remove from frame
- Light enough for one person to handle (cartridge module 7kg)
- Cleaning in place (CIP)
Maintenance cleaning : 1 time / 2 weeks
Recovery cleaning : 1~2 times / year
The Materials are Highly Resistant to Chemicals & Other Impacts
17
Quality Certification of Membrane
by Public Procurement Service, Republic of KOREA
Note : The original company name was ‘KMS.” The company had its name
changed to “Econity” in 2009
18
e-MBR Process
( New Excellent Technology No.337 Certified
by Ministry of Environment, Republic of KOREA )
19
20
Features of MBR Process vs Conventional Type
High Quality & Stable Effluent
- Use of submerged hollow fiber membrane
- Not affected by sludge settling characteristics
Smaller Site (50% Reduction) & Lower Civil Work Cost
- Does not need sedimentation, clarifier, disinfection, etc.
Waste Disposal Cost Saving
- Due to substantial sludge reduction
Effluent Reuse
- Perfect removal of SS & coliforms
21
Advantages of e-MBR vs other MBR
Improved Nitrogen & Phosphorous Removal Efficiency
- Pre & post denitrification with external carbon (optional)
- Minimization of inhibition for nitrogen & phosphorous removal
through DO control in Oxic 1
Energy Saving
- DO recycle from oxic 2 to oxic 1
- Substantial energy saving during bio treatment in oxic 1
- Dual aeration(fine/coarse bubble) in membrane reactor realizes
additional aeration saving (optional)
22
Advantages of e-MBR
23
High Quality Effluent
(Unit : mg/L, Nr/mL)
Effluent
Parameter
A2O, SBR and Other
Conventional Type
+Tertiary Treatment
+Disinfection
Typical Level
(without chemical)
Achievable Level
(with chemical)
BOD5
5 ~ 10
<2
<2
SS
5 ~ 10
<1
<1
T-N
5 ~ 15
< 15
< 10
T-P
0.5 ~ 1.5
< 1.5
< 0.5
Coliforms
< 200
< 30
< 30
e-MBR
Note : Typical levels of N & P depend on influent characteristics such as C/N, C/P. Lower levels of N & P
can be achieved by using additional chemicals.
24
Required Installation Area
e-MBR Process
Conventional Process
(A2O+Tertiary)
Reducing around 1/2
25
e-MBR EPC Cost
(80)
 Civil
30
 Mechanic 25
 Electric 15
 Mem.
10
e-MBR
(85)
(95)
(100)
 Civil
30
 Mechanic 25
 Electric 15
 Mem.
15
 Civil
50
 Mechanic 30
 Electric 15
 Civil
55
 Mechanic 30
 Electric 15
Other MBR
SBR + Tertiary
A2O + Tertiary
Note : Excluding land purchase costs
26
e-MBR EPC + O&M Cost
(90)
(100)
(95)
O&M 20
O&M 10
EPC
EPC
(100)
O&M 10
O&M 15
EPC
75
e-MBR
80
Other MBR
85
SBR + Tertiary
EPC
90
A2O + Tertiary
Note : EPC cost + 20years O&M cost (assumed under the same condition, 10,000㎥/d)
Including power, chemical, sludge treat. and membrane replace cost
Excluding labor, repair and other miscellaneous cost
27
MBR Technology References
MBR
Bio + Membrane
Upgrade
KSMBR
Improvement of
Nutrient Removal
Upgrade
e-MBR
Optimization of BNR
for Ultimate Nutrient Removal
Improvement of Using Energy
by SSANGYONG & ECONITY
28
Applications of Ssangyong MBR Technology
South Korea
Okcheon STP
18,000㎥/day (Operating)
Youngjong Songsan STP
30,000㎥/day (Constructing)
Daegu Dalsung WWTP
25,000㎥/day (Operating)
Jinhae Undong STP
10,000㎥/day (Constructing)
Incheon Gongchon STP
65,000㎥/day (Constructing)
MBR Technology (KSMBR) 160 Plants
ECONITY Membrane
1, 100 Plants
Songsan Green-City STP
84,000㎥/day (Designing)
29
After
KSMBR
Retrofitting
Before
Retrofitting
(CAS+Tertiary)
Project : Okcheon STP
Capacity : 18,000 m3/day
Location : Okcheon-gun, Chungcheongbuk-do, Korea
30
After
KSMBR
Retrofitting
Before
Retrofitting
(CAS+Tertiary)
Project : Daegu Dalseong Industrial Complex WWTP
Capacity : 25,000 m3/day
Location : Dalseong-gun, Daegu, Korea
Reuse : Industrial Water
31
Track Record of Ssangyong MBR Technology
Nation
Site
Capa. (㎥/day)
S. Korea
Sihwa Jeongok ect.
STP
S. Korea
Daegu Dalsung Industrial Complex
S. Korea
Yeoncheon Baekhak Industrial Complex
Site Nr
Sum of Capa. (㎥/day)
400
31
3,403
WWTP
25,000
1
25,000
WWTP
500
1
500
STP
18,000
1
18,000
STP
510
23
2,930
Daechung Dam Area 2
STP
190
13
1,210
Namgang Dam Area 1
STP
80
12
870
Remark
In Operation
S. Korea
Sewage Facilities
Expansion Project
In the Upper Stream
of Dam
Daechung Dam Area 1
S. Korea
Youngjong Songsan
STP
30,000
1
30,000
S. Korea
Incheon Gongchon
STP
65,000
1
65,000
S. Korea
Jinhae Unngdong ect.
STP
10,000
18
24,895
S. Korea
Ansan Sihwa MTV
STP
32,000
1
32,000
S. Korea
Songsan Green-City
STP
84,000
1
84,000
S. Korea
Wonju Business-City ect.
STP
18,000
52
79,200
S. Korea
Cheonan Pungse Industrial Complex ect.
WWTP
5,000
4
8,300
China
Inner Mongolia
WWTP
600
1
600
China
Qingdao
WWTP
50
2
70
China
Beijing
WWTP
200
1
200
China
Yunnan
STP
20
1
20
Russia
Dekastri
STP
300
1
300
N. Korea
Pyeongyang
STP
40
1
40
N. Korea
Gangwon Goseong
STP
400
1
400
Under
Construction
Designing
Total
168
In Operation
376,938
32
KSMBR
33
KSMBR
e-MBR
34
< 2007 Korea Environment Technology Awards >
“KSMBR” won President Grand Award !
“KSMBR” Certified Green Technology
by Ministry of Environment, Republic of KOREA
35
Water Reuse System
36
Water Reuse System
Water Quality
City Water
e-MBR + RO
Treatment for
Water Supply
/ Desalination
e-MBR
Water in Use
Conventional
Treatment
Water
Source
Reuse
(High Quality)
Reuse
(General Quality)
Discharge
Sewage
Time Sequence
37
Simplified Approach to Reuse
Fresh
Water
Industrial Water
Clean
Water
Using
City Water
RO
Agricultural Water
Gardening Water
Treated
Water
Sewage
e-MBR
Cleaning Water
Supplement Water
Stream Maintenance
38
Concepts of Process for Reuse
BNR + Sand Filter (+ Biological Activated Carbon)
BNR + Microfiltration (+ Reverse Osmosis)
Membrane Bio-reactor (+ Reverse Osmosis)
39
e-MBR + RO Process
Sewage
Reuse
e-MBR
RO Module
Produced Water
RO Module
RO Module
Concentrated Water
Recycle
or Waste
No pre-treatment is required for RO process
40
Thank you
41
Attachment 1
e-MBR Energy Users
Permeate
Pump
7%
Aeration
(Bio+Mem.)
47%
Misc.
2%
inlet pump
3%
Mixing
18%
RAS Pump
23%
Note : This is the result from pilot scale (60㎥/day) test
and specific inlet loading condition, so it can be different
according to plant scale and condition.
In conventional MBR processes, aeration (bio aeration + membrane aeration) takes
up over 70% of total energy used. E-MBR yields substantial energy saving, thanks to
its efficient aeration process, from 70% to 50%.
42
Attachment 2
ECONITY Company Description
Name : Econity Co., Ltd.
Location : Yongin-Si, Gyeonggi-do, S.Korea
Branch Office : Shanghai, Los-Angeles
Established : Sep., 1st, 1998
No. of Employee : 100 persons
Patents and New Environmental Technology
Local Patents
 Membrane manufacture : 5
 Module & System : 5
 WWT Process : 3
 Sludge Reduction : 1
 MBR+RO Reuse : 1
International Patents
New Technology
 US Patent registration 3
 KSMBR Process for Adv. WWT
(Membrane, Module, Air Diffuser)  e-MBR Process for Adv. WWT
 2Patents Application in China
 2Patents Application in Europe
43
Note : The original company name was ‘KMS.” The company had its name
changed to “Econity” in 2009
44
Note : The original company name was ‘KMS.” The company had its name
changed to “Econity” in 2009
45