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하폐수 처리 MBR 기술 최신 동향

( eco friendly + energy saving )

KSMBR

e - MBR

서울특별시 제 4 회 물산업 신기술 발표회

2011. 7. 15

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Contents

Development in Wastewater Treatment

ECONITY Membrane

e-MBR Process

MBR Technology References

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10

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36Water Reuse System

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Ssangyong’s MBR Technology 연혁

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우리나라 공공하수처리시설 방류수 수질기준 변경 연혁

초고도처리필요

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Development in Wastewater Treatment

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Development in Wastewater Treatment

MBR (Membrane Bio-Reactor)

BNR (Biological Nutrient Removal)

1970 1980 1990 2000 Future

CAS (Conventional Activated Sludge)

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ConventionalActivated

Sludge

BiologicalNutrientRemoval

MembraneBio-Reactor

(A2O)

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MBR ?

Membrane Unit Physical Barrier for Separation

BNR Process Biological N, P Removal Mechanism

Nitrification Denitrification P Release & Uptake BOD Removal SS Removal Coliforms Removal

MBR(Membrane Bio-Reactor)

BNR

BOD, N, PRemoval

Membrane

SS, ColiformsRemoval

+ =

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Quality of Treated WaterEffluent

Parameter CAS BNR(A2O) MBR e-MBR Remark

BOD ○ ○ ◎ ◎ Biochemical Oxygen Demand- Organics indicator

COD ○ ○ ○ ○ Chemical Oxygen Demand- Organics indicator

SS ○ ○ ◎ ◎ Suspended Solids- Solids indicator

T-N × ○ ○ ◎Total Nitrogen- Nitrogen(nutrient) indicator- TKN(organic N+Ammonia) + NOx

T-P × ○ ○ ◎Total Phosphorous- Phosphorous(nutrient) indicator- Poly P + ortho P

Coliforms × × ◎ ◎ Coliform Bacteria

Note : ◎ excellent, ○ good, × has no treatment mechanism

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ECONITY Membrane

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Principle of Hollow Fiber Membrane

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Surface of ECONITY MembraneOuter Inner

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Technical Benefits Economical Benefits

Manufacturing ProcessStretching Method

Porosity: High (above 77%)Pore Shape: Slit TypePermeability ↑, Screen Effect ↑

Manufacturing Cost ↓

MaterialHDPE(Hydrophilic Coating)

Nominal Pore Size0.4 μm (Micro Filtration)

OD/ID/Wall Thickness0.65/0.41/0.12 mm

Operation Flux0.3~0.5 m3/m2/d

ECONITY Hollow Fiber Membrane

Traditional Stability & SafetyChemical Resistance: StrongLife-time: Long

Membrane Replacement Cost ↓

Complete Separation ofSolids & Bacteria

High Packing DensityFootprint: SmallEnergy Consumption: Low

Tolerance of Fouling: StrongTerm of Chemical Cleaning: Long

Construction Cost ↓

Maintenance Cost ↓

Benefits of ECONITY Membrane

Note : Membrane Life time is usually around 8~10 years and may vary subject to influent & operation conditions.

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ECONITY Membrane Manufacturing Plant

Location : Yongin, Republic of Korea

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ECONITY Cartridge Module

Permeate

Handle

ECONITY Hollow Fiber Membrane

320W×396H×490L, Weight 7kg

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ECONITY Frame

KMS-6007CF (1,326W×3,233H×2,948L, Q=600m3/day)

Permeate

Air

Aeration

Sludge Discharge

“M” Type for Air Distribution Uniformly

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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

Features of ECONITY Membrane System

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Quality Certification of Membraneby Public Procurement Service, Republic of KOREA

Note : The original company name was ‘KMS.” The company had its name changed to “Econity” in 2009

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e-MBR Process( New Excellent Technology No.337 Certified

by Ministry of Environment, Republic of KOREA )

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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

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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)

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Advantages of e-MBR

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High Quality Effluent

EffluentParameter

A2O, SBR and Other Conventional Type+Tertiary Treatment

+Disinfection

e-MBR

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

(Unit : mg/L, Nr/mL)

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.

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Required Installation Area

e-MBR ProcessConventional Process

(A2O+Tertiary)

Reducing around 1/2

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e-MBR EPC Cost

(100)(95)(80)

e-MBR SBR + Tertiary A2O + Tertiary

Civil 50 Mechanic 30 Electric 15

Civil 30 Mechanic 25 Electric 15 Mem. 10

Civil 55 Mechanic 30 Electric 15

(85)

Other MBR

Civil 30 Mechanic 25 Electric 15 Mem. 15

Note : Excluding land purchase costs

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e-MBR EPC + O&M Cost

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

(100)(95)(90)

e-MBR SBR + Tertiary A2O + Tertiary

EPC 75

(100)

Other MBR

O&M 15

EPC 80 EPC 85 EPC 90

O&M 20 O&M 10 O&M 10

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MBR Technology References

MBR KSMBR e-MBROptimization of BNRfor Ultimate Nutrient RemovalImprovement of Using Energy

Improvement of Nutrient Removal

Bio + Membrane

Upgrade Upgrade

by SSANGYONG & ECONITY

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Applications of Ssangyong MBR Technology

ECONITY Membrane 1, 100 PlantsMBR Technology (KSMBR) 160 Plants

Songsan Green-City STP84,000 ㎥ /day (Designing)

Jinhae Undong STP10,000 ㎥ /day (Constructing)

Youngjong Songsan STP30,000 ㎥ /day (Constructing)

Okcheon STP18,000 ㎥ /day (Operating)

Daegu Dalsung WWTP25,000 ㎥ /day (Operating)

Incheon Gongchon STP65,000 ㎥ /day (Constructing)

South Korea

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Project : Okcheon STPCapacity : 18,000 m3/dayLocation : Okcheon-gun, Chungcheongbuk-do, Korea

AfterKSMBR

Retrofitting

BeforeRetrofitting

(CAS+Tertiary)

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Project : Daegu Dalseong Industrial Complex WWTPCapacity : 25,000 m3/dayLocation : Dalseong-gun, Daegu, KoreaReuse : Industrial Water

AfterKSMBR

RetrofittingBefore

Retrofitting(CAS+Tertiary)

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Nation SiteCapa. ( ㎥ /

day)Site Nr

Sum of Capa. ( ㎥ /day)

Remark

S. Korea Sihwa Jeongok ect. STP 400 31 3,403

In OperationS. Korea Daegu Dalsung Industrial Complex WWTP 25,000 1 25,000

S. Korea Yeoncheon Baekhak Industrial Complex WWTP 500 1 500

S. Korea

Sewage FacilitiesExpansion Project

In the Upper Streamof Dam

Daechung Dam Area 1STP 18,000 1 18,000

STP 510 23 2,930

Under Con-struction

Daechung Dam Area 2 STP 190 13 1,210

Namgang Dam Area 1 STP 80 12 870

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

DesigningS. 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

In Operation

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

Total 168 376,938

Track Record of Ssangyong MBR Technology

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KSMBR

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KSMBR e-MBR

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< 2007 Korea Environment Technology Awards >“KSMBR” won President Grand Award !

“KSMBR” Certified Green Technologyby Ministry of Environment, Republic of KOREA

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Water Reuse System

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Water Reuse System

Time Sequence

Water SourceW

ater

Qu

alit

y

Treatment for Water Supply/ Desalination

City Water

Sewage

Conventional Treatment Discharge

Reuse(General Quality)

e-MBR

e-MBR + RO Reuse(High Quality)

Water in Use

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Simplified Approach to Reuse

RO

Sewage

CleanWater

Treated Water

Gardening Water

e-MBR

Using

Supplement Water

Cleaning Water

Industrial Water

Agricultural Water

City Water

Stream Maintenance

FreshWater

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Concepts of Process for Reuse

BNR + Sand Filter (+ Biological Activated Carbon)

BNR + Microfiltration (+ Reverse Osmosis)

Membrane Bio-reactor (+ Reverse Osmosis)

The Latest Technology

(High Water Quality)

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e-MBR + RO Process

Sewage e-MBR

RO Module

RO Module

RO Module Concentrated Water

Produced Water

Reuse

Recycle or Waste

No pre-treatment is required for RO process

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Thank you

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e-MBR Energy Users

Permeate Pump7%

Misc.2% inlet

pump3%

Mixing18%

RAS Pump23%

Aeration(Bio+Me

m.)47%

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%.

Note : This is the result from pilot scale (60 ㎥ /day) testand specific inlet loading condition, so it can be different according to plant scale and condition.

Attachment 1

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ECONITY Company Description

Name : Econity Co., Ltd.Location : Yongin-Si, Gyeonggi-do, S.KoreaBranch Office : Shanghai, Los-AngelesEstablished : 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

US Patent registration 3 (Membrane, Module, Air Diffuser) 2Patents Application in China 2Patents Application in Europe

New Technology

KSMBR Process for Adv. WWT e-MBR Process for Adv. WWT

Attachment 2

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Note : The original company name was ‘KMS.” The company had its name changed to “Econity” in 2009

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Note : The original company name was ‘KMS.” The company had its name changed to “Econity” in 2009