reduction of non - revenue water lipjan...

REDUCTION OF NON - REVENUE WATER

LIPJAN UNIT

Department of Designing and Planning- RNRW-GroupMSc. Sokol XHAFA

Brief Presentation of RWC-Prishtina

Before 1961 – Germia natural resources and Wells in Kolevica

1961 – Badovc Lake Reservoir

1979 Batllave Lake Reservoir

Underground Resources Fushe Kosove and Obiliq

1999 – Consolidation of the Company

2007 Regionalization and it becomes as a Joint Stock Company with name Regional Water Company Prishtina

These days RWC-Prishtina supplies somewhere around 40% of Kosovo population connected to these services

RWC-P Services ( Areas )

Regional Water Company Prishtina j.s.c provides services in the

North East and Central Part of Republic of Kosovo

Prishtinë

Fushë Kosovë

Obiliq

Shtime

Lipjan

Drenas (Gllogovc)

Podujeve

Graqanicë

Part of Vushtrri

Water Resources in RWC-P

RWC-P has two major Water Treatment Plants

-Albanik – Podujevë, and Badovc

There are 6 objects – facilities that treat underground

water from wells in: Kroni, Kastriot, Shtime, Lipjan,

Podujeva and Drenas.

22 Pump Stations

Water Tanks with V= 70.000 m³

1.200.000 m Primary and Secondary Pipelines

INTERESTING!

RWC-P has in total 120 000 consumers , with

110 000 active and 10 000 passive.

Water Supply System-Lipjan Unit

Data and characteristics of Lipjan Unit:

Lipjan unit supplies the town of Lipjan and 32 surrounding villages.

Lipjan Unit has approximately 8000 active consumers.

Around 190 km of pipelines including primary and secondary

Around 70 % of the network is with HDPE

Around 20 % of the network is AC

Left percentage is PVC , DCI, etc

Sources of Lipjan Unit

Wells – Bore holes at “Paper Factory” – 7 No’s

Bore Holes at Fields near Sitnica River – 5 No’s

Bore Holes in Gracanica border – 6 No’s

7 Pump Stations


Main Resources:

Wells – Bore holes at “Paper Factory”-7 Bore Holes

Treat Capacity – Tank V = 450 m³

Wells Capacity Q = 80 l/s

Water extraction from wells Qp= 40 l/s

Bore Holes at Fields near Sitnica River-5 Bore Holes



Pumped water into treatment plant at Tank V = 450 m³

Bore Holes in Gracanica border – 6 Bore Holes

Treat Capacity – Tank Basin V = 350 m³



With buster pump station it pumps and feed 2 Reservoirs ( Water Tanks )

Reservoir in Gadime with V= 1000 m³

Tank in Gushterice e Eperme V = 500 m³

Tank in Janjeva V = 200 m³


Definition of Water Balance – IWA


Parameters influencing the Real Losses

Unavoid-

able R.L.

Current Real Losses

Speed and

Quality of

Repair

Active

Leakage

Control

Asset

Management

Pressure

Management

Economic Level

Real Losses

Unavoid-

able R.L.


Parameters influencing the Apparent Losses

Current Apparent Losses

Billing

Management

Unauthorised

Consumption

Meter Reading

Management

Customer

Database

Economic Level

Apparent L.

Unavoid-

able A.L.

Action Plan for NRW Reduction

Selectin and implementing Intervention Methods

Unbilled Authorised Consumption

- Install WM for allcustomers

- Improve WM readings

Apparent Losses

- WM replacementprogramme

- Regular meter calibration

- Procurement of new WMs

- Identification of illegalconsumers

Real Losses

-Forming DMAs

-Flow and pressure measures

-Systematic leak detection

-Field data collection

-Data evaluation and analysis

-Setting required actions

RED

UCED

NRW

A C T I O N P L A N F O R N R W R E D U C T I O N


Network of Water Supply System in Lipjan Town – GIS file from 2010-2014

Part inside Lipjan Town

970 Consumers

L= 6.7 km

Total 940 HC

OD 250 mm - 63 HDPE + DN 150 – 65 AC

Includes : Police Station

Primary Elementary School – 1000 pupils

Kinder garden - 35 children

Businesses - 5


Proposal for DMA’s

Bujari – Callapek

Janjeve - Gushterice

Bujari-Callapek Network

203 + 60 Consumers

L = 6.8 + 3.4 km

Total 263 HC

Ø 125 – Ø 50 mm HDPE

Janjeve – Gushterice

374 + 440 Consumers

L = 17. 10 km approx

Total 814 HC

DN 150 – DN 60 - AC

Collected data for Water Balance

Distributed and un billed water for Lipjan Unit

No UNIT

MONTH

Year 2013

DISTRIBUTED WATER

( m³/month)

BILLED WATER

(m³/month)

UNBILLED WATER

(m³/month)

REAL LOSES

( % )AVERAGE

4 LIPJAN

JANUARY 143,491 55,531 87,960 61

50

FEBRUARY 123,815 64,914 58,901 48

MARCH 125,626 65,941 59,685 48

APRIL 126,780 71,668 55,112 43

MAY 123,377 76,580 46,797 38

JUN 130,770 73,342 57,428 44

JULY 147,658 74,514 73,144 50

AUGUST 148,551 76,219 72,332 49

SEPTEMBER 139,151 73,863 65,288 47

OCTOBER 150,331 70,270 80,061 53

NOVEMBER 147,586 63,112 84,474 57

DECEMBER 140,820 55,933 84,887 60


Distributed and unbilled water for Lipjan Unit-2013

-

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

1 2 3 4 5 6 7 8 9 10 11 12

Distributed Water

Billed Water

Un Billed Water


Distributed and unbilled water for Lipjan Unit

No

UNITMONTH

Year 2014

DISTRIBUTED WATER ( m³/month)

BILLED WATER (m³/month)

UNBILLED WATER (m³/month) REAL LOSES

( % )

AVERAGE

4 LIPJAN

JANUARY141,547 62,480 79,067

56

55

FEBRUARY132,940 61,871 71,069

53

MARCH147,662 79,030 68,632

46

APRIL152,606 64,569 88,037

58

MAY161,966 68,707 93,259

58

JUN156,441 73,115 83,327

53

JULY164,359 78,859 85,500

52

AUGUST169,749 81,784 87,965

52

SEPTEMBER168,520 74,422 94,098

56

OCTOBER167,860 75,147 92,713

55

NOVEMBER158,450 67,649 90,801

57

DECEMBER168,770 66,837 101,933

60


Distributed and unbilled water for Lipjan Unit - 2014

-

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

180,000

1 2 3 4 5 6 7 8 9 10 11 12

Distributed Water

Billed Water

Unbilled Water

Team and equipment for NRW

NRW Department is located in Head office in Prishtina

Equipments for leak detection and others needed for the group are:

Acoustic Leak Detector

Pipe and Cable Detector

AML, All Material Locator

Ultrasonic Device

Pressure Loggers

Flow and Pressure Logger with GPRS

Ultrasonic Measuring Device for wall thickness of pipes

Mini Water Leak Detector

Noise level and frequency logger

Locator of buried valves – hydrant cone covers

Ground Microphone

Magnetic Key etc

Steps for data collection

Real measures directly on Main Pipes

Measures on site made by

Ultrasonic water meter device

GPRS pressure / flow data logger,

and pressure logger



First steps taken were, replacing the existing water meter and a gate valve, installing new one and a saddle for

pressure control via pressure logger .



Second one we are continuing with measures with Ultrasonic water meter device



Graph chart taken online from mounted GPRS pressure and flow logger



Graph chart taken from Ultrasonic Device

Water loss factors

Major water loss factors

Existing Network – Areas with AC pipes ( villages and part of town )

“New” network that has been constructed after year 2000 ( bad quality of

pipe as a material )

Illegal Connections

Leakages inside the multi story buildings

Water meter reading and controlling

Calibration of water meters

Installing pressure reducer valves in different zones

Proposal to improve situation

Detailed analyses for loss factors in areas where we have new network with

HDPE pipes

Develop a leak detection group also in the Unit with right equipment & devices

Replacing existing AC lines and other pipelines with burst problems

Creating new DMA zones

Installing water meters and calibration of existing water meters

Installing Bulk Water Meters

Finding and elimination of illegal connection

Inspection and survey all existing lines

Installing HDPE RC pipes lines

Detailed analyses for efficiency of pumps

THANK YOU !

Lipjan Unit - Prishtinë 2015

reduction of non - revenue water lipjan...

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