Water Lekeage Management in Malatya,Turkey.en.taipeiwater2018.com/Upload/files/Doc/Parallel session...

Water Lekeage Management in Malatya,Turkey.

Assoc. Prof. Dr. Özgür ÖZDEMİR

ASKİ Deputy General Manager

30 August 2018

EU ACCESSION PERIOD AND WATER SECTOR

•European Union (EU) membership process since 1999

•Negotiations on full EU membership since 2004

Environment chapter has been officially opened on 21st ofDecember, 2009.

2018 Taipei International Water Environment Forum & Taipei Expo

Assoc. Prof. Dr. Özgür ÖZDEMİR ASKİ Deputy General Menager

EU ENVIRONMENT CHAPTER

In order to meet the benchmarks of the “Water Sector” under theEnvironment Chapter of EU;

Turkey adopts legislation aimed at transposing the EU's horizontal andframework environmental legislation, including its transboundary aspects;

Such as Water Framework Directive, Urban Waste Water Directive and FloodDirective

Turkey adopts legislation aimed at transposing the acquis in the field of waterquality, notably its Framework Water Protection Law; establishes River BasinManagement Plans; and makes further significant progress in legislativealignment in this sector by adopting and implementing the EU legislation.



25 RIVER BASINS IN TURKEY2018 Taipei International Water Environment Forum & Taipei Expo


WATER POTENTIAL PER CAPITA

YEARPOPULATION

(MILLION)WATER POTENTIAL (m3/PERSON.YEAR)

2017 81 1383

2023 87 1287

2050 104 1069

2070 107 1040

TURKEY IS A WATER-STRESSED COUNTRY



A BRIEF LOOK AT WATER MANAGEMENT İN TURKEY

RIVER BASIN MANAGEMENT PLAN SECTORAL WATER ALLOCATION PLANS WATER QUALITY MONITORING STUDIES Water Quality Management National Water Information System DROUGHT MANAGEMENT PLANS FLOOD MANAGEMENT PLANS



Millions euro and billions mc of water lost everyyear

Industrial cost:226 millions euro per year

Water losses:2.6 billions mc of water per year

Earnings lost:3 billions euro per year

Problem statement Real losses in water distribution system

Issues on water system management

Night time closure from 12 am to 6 am



Network complexity

Quality aspects

Problem statement2018 Taipei International Water Environment Forum & Taipei Expo


1. We do not know how the networks actually works

2. The WS systems are verycomplex

3. We need to improve the WS management

How shall we tackle these issues! ? !

Problem statement2018 Taipei International Water Environment Forum & Taipei Expo


Solution (1/3)

IMPLEMENTATION OF A PERMANENT MONITORING SYSTEM

IN OUT

1. WE DO NOT KNOW HOW THE NETWORK ACTUALLY WORKS



Solution (2/3)

SEGMENTATION OF THE EXISTING SYSTEM IN MONITORING DISTRICTS (DMAs)

IT IS DIFFICULTFind the leakages

Manage the system

Improve the knowledge of the system

DMA

Trieste

DESIGN PROCESS

2. THE WS SYSTEMS ARE VERY COMPLEX3. WE NEED TO IMPROVE THE WS MANAGEMENT



Solution (3/3)

NEW DISTRIBUTION SYSTEMS STRUCTURED IN PRESSURE ZONES AND DISTRICTS (DMAs)

3. WE NEED TO IMPROVE THE WS MANAGEMENT

Monitoring system concept



The Case Study of Malatya City Centre Network

Malatya Su ve Kanalizasyon İdaresi (MASKI)

Rehabilitation Project of Malatya city centre

water supply system

Project started on September 2015 and

completed in March 2017

Permancence of Idrostudi-Sufen engineering

team in Malatya for 1 year

Project length

20MONTHS



Critical Aspects• Water Balance calculation: significant real water losses of the water distribution network in Malatya

water supply system

System Input Volume

Revenue Water

Non-revenue

Water (NRW)

Billed Authorized Consumption

Unbilled Authorized Consumption

Apparent Losses

Real Losses

Authorised

Consumption

Water Losses

WATER BALANCE

Inlet Volume to the System (Kaptaj) 94.2 Mm3/year

Billed Consumption (customers) 28.2 Mm3/year

Total Unbilled Consumption66.0 Mm3/year

70.1 %

Unbilled Authorized Consumption (NRW)

Public Parks 0.05 Mm3/year

Mosques 0.8 Mm3/year

Road cleaning 0.9 Mm3/year

Irrigation 8.98 Mm3/year

TOTAL NRW10.7 Mm3/year

11.3 %

Apparent Losses

Under-metering error of house meters4.0 Mm3/year

4.2 %

Real Losses

TOTAL (physical losses + overflow)51.3 Mm3/year

54.1 %



• Classification of Malatya water system according to

ILI index (IWA Task Force):

ILI = 12.84

• It’s necessary to implement best practices on water

management

• Calculation of ILI index:

Critical Aspects



MNF 24-38 lt/sec

MNF 57-62 lt/sec

MNF 21-28 lt/sec

HIGH LEAKAGE• High level of water losses: about 54% of input volume

Critical Aspects



Total capacity = 120’000 m3

• A lot of tanks: difficult management

• Many tanks have a low volume and same elevation

0%

10%

20%

30%

40%

50%

60%

70%

< 1000 1000 - 5000 5000 - 10000 10000 - 20000

Volume [m3]

Percentage of tankswith volume

< 1000 m3 = 60 %

Critical Aspects



Closure: 6 hours Closure: 2.5 hours

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water level

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LOW LEVELS IN THE STORAGE TANKS

Yaprakli (15’000 m3)

water level

Operation made by MASKI of valve

closure during night in order to fill

Melek Baba tank

• Critical water level in main service tanks

• Low distribution service due to closures during nighttime for high leakage

Critical Aspects



1

Analysis of the existing water supply

system: survey, specific monitoring and

numerical modeling, identification of

critial aspects

2Analysis of non-revenue consumptions

(NRW)

3Monitoring of 17 pilot DMAs and on-

site leak detection

4Development of Master Plan at 2071

water demand scenarios: main pipes,

pressures zones and districts

5Education and training activity of

MASKi technicians

6Long-term water loss reduction

strategy

Strategy Definition2018 Taipei International Water Environment Forum & Taipei Expo


Minitored DMAs

17Totale saved water

110lt/s

Measuring station

93Network length under permanent monitoring

185KM

Numerical Modeling

2780KM

Total reservoirs

18Pressure Zones

13DMAs

140Hydro

2

Total found leaks

190

1.Water Management of the Existing Distribution System

2.Numerical modeling

3.Master Plan

Real-Time Model

1100KM

Population

1.2M



DMA design process

DMA-Optimizer(interoperability with GIS software)

1) Define DMA’s boundaries

2) Optimization of flowmeters

OPTIMIZER

3 DMAs 5 DMAs

Clustering Algorithm

Genetic Algorithms (NSGAII, etc.)

FLOWMETER NUMBER

NET

WO

RK

P

ERFO

RM

AN

CE

(IR

)

High efficienyLow Cost



DMA design process

CLUSTERING ALGORITHM: MODULARITY-BASED PROCESS

Modularity (Q): mathematical function representing the quality of vertex division of a graphinto districts (i.e. DMAs)

It represents the density of inner connections inside a district compared to external links

It depends on the network topology

(Clauset et al., 2004)

Maximum modularity: network nodes strongly

connected inside district and weakly linked to other districts

Adjacency MatrixNode Grade

Linking function:

1 v,w = community0 otherwise

wvvw

wv

vw ccm

kkA

mQ ,

22

1

Total n° of pipes

OPTIMIZER



Monitoring of DMAs1. Data of flows and pressure are sent via GSM/GPRS by KAPTORS to MASKi server

2. Real-time data are checked and stored in a specific database in MASKi server

3. Implementation of DMAs in Waterguard

MASKI Server

Remote control system of Waterguard

Implementation of DMAs in Waterguard

17PILOT DMAs

27FLOWMETERS



Leakage Detection Results

District ZoneNumber of

detected leaksNumber of

repaired leaks

OAB1 Ҫavuşoǧlu 5 0

OAB2 Toki 2 1 0

OAB3 Yakınca 2 5 0

OAB4 Yeşilkaynak 12 6

OAB5 Inonu 3 0

OAB6 Dabakhane 43 26

OAB7 Kavaklibaǧ 22 17

OAB8 Sanayi 44 33

OAB9 Nuriye 7 5

OAB10 Fırat 0 0

OAB11 Cosnuk 0 0

OAB12 Venk 0 0

OAB13 Akpinar 26 22

OAB14 Saricioǧlu 0 0

OAB15 Goztepe 22 19

OAB16 Asagi Cosnuk 0 0

OAB17 Saray 0 0

TOT 190 128

Leakage Management Database in WAterguard



Saved Water in Malatya Water Supply System

District ZoneNetwork

length [km]Number of subscribers

MNF before[l/s]

MNF Target [l/s]

MNF after[l/s]

Saved water [l/s]

OAB1 Ҫavuşoǧlu 11 3040 10.5 3.2 10 0.5

OAB2 Toki 2 1.9 772 1 1.1 0.6 0.4

OAB3 Yakınca 2 15.1 1048 29 2.9 20.5 8.5

OAB4 Yeşilkaynak 5.3 1081 9.5 2.6 9.5 0

OAB5 Inonu 26.8 2376 34 10 22 12

OAB6 Dabakhane 5.7 2629 38 11 24 14

OAB7 Kavaklibaǧ 11.1 3935 62 7.4 34 28

OAB8 Sanayi 19.5 1969 32 6.1 22 10

OAB9 Nuriye 5.2 2474 9.5 3.3 7.5 2

OAB10 Fırat 6.1 796 0 0.8 0 0

OAB11 Cosnuk 18.5 4215 10 3.6 10 0

OAB12 Venk 5.1 1382 2.5 1.3 2.5 0

OAB13 Akpinar 9.5 3753 48 10.5 31 17

OAB14 Saricioǧlu 5.1 862 11.5 2.3 5 6.5

OAB15 Goztepe 18.7 2844 20 4.4 10.6 9.4

OAB16 Asagi Cosnuk 14.5 726 6.8 2.4 4 2.8

OAB17 Saray 4.8 2032 27 4.4 20.6 6.4

TOT 117.5



Application example: Dabakhane district

Industrial users N IND 0 us

Civil users N CIV 2629 us

Total users N TOT 2629 us

Pressure correction

factorPCF 1.473 -

Network length l 7.89 km

Average pressure p 65 m H2O

Pipelines leakages

coefficientC 1 60 l/km/h

Houses connections

leakages coefficientC 2 4.5 l/us/h

18123 l/h

5.0 l/s

4969 l/h

1.4 l/s

23093 l/h

6.4 l/sMINIMUM NIGHT FLOW MNF

Unavoidable leakage Q leak

Anthropic minimum

night flowQ cons

MNF method: optimal value

(WRc, AWWA, 1994)

MNF 38 lt/sec

MNF 20 lt/sec

TARGET

Target (WRc ) 6.4 lt/sec



Application example: Dabakhane district

MNF 38 lt/sec

MNF 20 lt/sec

Target (WRc ) 6.4 lt/sec

Without permanent monitoring

With permanent monitoring and

DMAs

Leakage reduction determines pressure

increase and more stress on pipe junction



Pressure management

ΔP = 3 bar

Case Study: Trieste (Italy), city centre district

Installation of Pressure ReducingValves

INSTALLATION FIXED OUTLET PRVs

Works finished

TRIESTE



Pressure managementCase Study: Trieste, PRV on transmission main DN900 from wells field

DN=900 mm

ΔP = 2 bar

TRIESTE

BIM design

Adriatic sea Adriatic sea

Wells fieldPRV



Pressure managementCase Study of Malatya: Master Plan of Transmission Mains and Distribution Network

Full network numerical model

Design of DMAs

13 pressure zones

Linear relationshipbetween pressure and

leakage:

10% less pressure

10% less leakage

Closed valve

Flowmeter

Pressure zone A

Monitoring system concept

140 DMAs

DMA 1 DMA 2

DMA 3

Design of Pressure Zones



Thank you for your attention

[email protected]

Water Lekeage Management in Malatya,Turkey.en.taipeiwater2018.com/Upload/files/Doc/Parallel session...

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