Lopare

Examination of water losses in the Lopare distribution network

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MEASUREMENT ON THE WATER SUPPLY NETWORK

Tunicipality of Lopare together with JKP "Vodovod" d.o.o. Lopare has prepared a program of works for the rehabilitation of water losses in the water supply system of Lopare. The main goal of the aforementioned Program of Works is to define losses, i.e., uncontrolled leakage from the water supply network, which will be removed through other activities. After the preliminary actions in terms of collecting technical data on the water supply system and data on consumers, as well as the preparation of cadastral documents, we started to measure and balance the amount of water in the system. The flow was measured at eight measuring points for 24 hours.

Mjerenje protoka
Korelator Fuji

De measured the pressure on the entire water supply system at nine measuring points, including the lowest and highest elevations. In addition to the mentioned works, during the measurement, the manipulation of the sector closures was also carried out in order to balance the amount of water in certain parts of the system. Noise loggers were deployed at 18 locations, and after analyzing all the results, control and testing of certain parts of the water supply network was carried out, and faults were located.

Practical training was also carried out for working with the "Fuji" brand correlator in the field during the investigation of faults in parts of the water supply network. All the results were summarized, and after the analysis, a report was drawn up on the measurement and examination of losses in the distribution network of Lopar with a proposal to the investor to divide the implementation of the recovery of losses in the water supply system of Lopar into short-term, medium-term and long-term activities, which are also listed in the report.  

UKC RS Banja Luka

Measurements on the hot pipe UKC RS

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Based on the Agreement between the investors "VAMED Standortentwicklung und Engineering GmbH” Wien Österreich, and the contractor “NMAqua” s.p. Banja Luka, measurements were made on the hot spring of the University Clinical Center of the Republic of Srpska in Banja Luka.

 According to the investor's request for the needs of the "TEB Banja Luka" Project, we measured the flow and temperature on the hot water pipes in the thermal substation in the Technical Block of the UKC Banja Luka. The measurement had to be carried out continuously for 21 days during the entire 24 hours.

Installation of probes

Dy measuring the flow and temperature, as well as the amount of delivered thermal energy, three pairs of pressure-return hot water pipes, i.e. six pipes, are included, which serve with thermal energy the hospital department "Infectious", department "Gynecology" and department "Central Medical Block" (CMB).

Setup Flowmeter AQF 2000

After the preparatory works and the provision of electricity sources, the preparation of the hot water pipe was carried out by cleaning at the place of installation of the probes for measuring the flow, as well as the probes for measuring the temperature. Metal clamps and fixed probes were placed, and the connection to ultrasonic flow and temperature meters was made. During these measurements, six ultrasonic (UZ) meters were used AQF 2000. Three UZ meters were used to measure the flow, while three meters were used to measure the temperature, in such a way that each meter with two probes measured the temperature on the pressure and return hot lines for a specific department. 

The flow measurement was performed on the return hot water pipe, based on the recommendation of the manufacturer of the measuring instruments and previous measurement experiences. The reason is that an even flow of fluid in the pipe was achieved on the return hot line, that is laminar calm flow, uniform and without turbulence in parallel layers, without mixing between them, in contrast to the pressure hot water pipeline, where the flows are turbulent, and the speeds are much higher and variable due to the close proximity of the pumps. Also near the pumps a certain percentage of liquid cavitation occurs,  i.e. discontinuities or "cavities" (steam bubbles in water) appear in the liquid stream, which negatively affect the measurement accuracy.

Transducers heat Pipe
Installation of Mmeters

After the measurements were completed, the Elaborate on the measurement of temperature, flow and quantity of delivered thermal energy was prepared, which was forwarded to the Investor in electronic and printed form.

Metalleghe Silicon

Leak detection on the hydrant network

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We received a request from the company Metalleghe silicon d.o.o. Mrkonjić Grad to carry out testing and water leak location within the factory. After favorable weather conditions were created, investigative work was undertaken to investigate the invisible loss of hydrant...

Krug fabrike

 

LThe suspicious part of the network was located by separating parts of the hydrant network. After that, the suspicious part of the network was listened to with an acoustic sound detector - a geophone. A fault was located at the branch of the hydrant network branch that separates towards the main facility of the factory.

The location of the leak was marked on the asphalt surface, and after the repair of the defect, it was determined by checking that there is no longer any loss on the hydrant network, thus successfully completing this work.

Lociran kvar
Lopare

Program of works for the rehabilitation of water losses in the water supply system of Lopare

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REDUCTION OF WATER LOSSES IN THE LOPARE SYSTEM

The Municipality of Lopare, together with the JKP "Vodovod" Lopare, has prepared a program of works for the rehabilitation of water losses in the water supply system of Lopare. The main goal of the mentioned Program of Works is the definition of certain losses, i.e., uncontrolled leakage from the water supply network, which will be eliminated through other activities. The result of detection of losses and subsequent elimination should lead to a reduction of losses in the water supply system of Lopare.

Vodovodna mreza In order to prepare for the implementation of the activities in question from the Work Program at the end of 2022, together with the representatives of JKP "Vodovod" Lopare, we visited the distribution water supply system of Lopar and collected basic information about it.

According to the Work Program in question, the contractor for loss testing is required to perform two tasks:

  • Investigation of water losses in the city's distribution network, which includes the execution of the required number of simultaneous flow measurements for the purposes of confirming/controlling the water balance, as well as the required number of pressure measurements and noise recording with correlators and noise recorders on all main distribution pipelines.
  • Training of local staff to work with FUJI water loss research equipment, which the Municipal Administration received as a donation.

It should be noted that the plan is to train local staff during the period of loss investigation, using practical examples.

Also, the Work Program defined that the Contractor must carry out the following activities during the investigation of water losses:

  • Preparation of bases for the display of the distribution water supply system of Lopare;
  • Flow measurement;
  • Pressure measurement;
  • Noise measurement;
  • Other measurements that are determined to be necessary;
    After the field visit and the analysis of the transmitted data, it can be concluded that the losses in the water supply system of Lopare are about 60%, which will be additionally checked and confirmed by measurements.

The goal is to provide sufficient amounts of clean (drinking) water and create opportunities for expanding the existing network, given that the coverage of the municipality of Lopare by the water system is currently very low, around 30% of the population.

The mentioned activities will be financed from the own funds of the municipality of Lopare, EIB loans and Grant funds from the Government of the Republic of Srpska.

I Konferencija o komunalnoj hidrotehnici

I Conference on Communal Hydraulic Engineering

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NEW TECHNOLOGIES IDEAS AND ACHIEVEMENTS 

Organized by NMAqua companies from Banja Luka, Hydrocontrol d.o.o. and Hydra d.o.o Sarajevo, and Kolektor from Ljubljana, on March 17 and 18 in the Hotel Kardijal in Teslić, the 1st Conference on Municipal Hydraulic Engineering was held.

Konferencijska sala

At the Conference on New Technologies, New Ideas and Achievements, in addition to presenting their activities, companies also promoted the application of innovative solutions in their work.

Učesnici konferencije

Upon the invitation, representatives of 14 communal water supply companies from Bosnia and Herzegovina and the president of the Association "Waterworks of Republika Srpska" also took part in the work of the conference.

Učesnici I Konferencije

During the two-day work, interesting topics presented by company representatives could be heard, and these are innovative solutions in construction, repair, measurement and detection of failures in water supply systems.

KOLEKTOR  SISTEH d.o.o.

UTILIS - SATELLITE RECORDING AND DETECTION OF WATER LEAKS

At this conference, the company KOLEKTOR gave full importance to the presentation new satellite imaging technologies - SAR analytics, UTILIS.

Kolektor prezentacija

It is a reliable method of remote detection of leaks in water supply networks, sewerage and heating, as well as the detection of water saturation of the soil in the field of traffic infrastructure and civil engineering.

This satellite imaging technology is used for Leak Detection and Water Loss Reduction, Contamination Prevention, Flood Monitoring and Pipeline Condition Assessment, as well as in the Pipeline Replacement Program.

One of the topics of the lecture was related to the Optimization of communal infrastructure - OKI, and part of the presentation also referred to the solutions on the sewerage network and wastewater treatment plants.

 

HYDROCONTROL d.o.o.

CCTV INSPECTION OF SEWER PIPES

Presenting services, company HYDROCONTROL presented the technology of CCTV inspection of sewer pipes with visual inspection, record of failures and inspection of home connections, which, as emphasized, is very important when taking over these systems for management and maintenance.

Hydrocontrol i Hydra

This time, ULTRASONIC AXIOM FLOW METERS were also presented, ie water meters with remote reading via the Lora Wan network. Innovative solutions such as high measurement accuracy, reliability, long-term operation, fault alarms are just, as said, one part of the new technology that is being applied.

LIKLES PDL DATA-LOGGER is an advanced industrial logger and meter of pressure, flow and other analog and digital quantities offered by Hydrocontrol as an authorized representative in BiH.

 

HYDRA  d.o.o.

HORIZONTAL DRILLING TECHNOLOGIES

At the conference, Hydra also presented innovative HORIZONTAL DRILLING TECHNOLOGIES that are very important and have an advantage in the rehabilitation or replacement of pipelines and sewer pipes in urban areas with increased traffic, cramped space and buildings under special protection.

Prezentacija Hydra

 

In the part of the presentation, the company Celab d.o.o., which specializes in field and laboratory testing of construction materials and quality control on infrastructure projects, presented the standards of international importance of CCTV INSPECTION and legal frameworks, as well as standardization of sewer pipe testing, ie watertightness.

 

 

 

NMAqua

AQUAWEB PROGRAM ZA NADZOR I PRORAČUN GUBITAKA NA VODOVODNOJ MREŽI

As an innovative solution in water companies NMAqua presented the program AquaWEB as a software solution that enables easy monitoring of the water supply network by automatically analyzing data collected from meters and through loss indicators, which are recommended by IWA in real time monitors the state of technical losses in individual zones or the entire network. AquaWeb is a fully configurable platform, which can be adapted to the different needs of water companies.

NMAqua prezentacija

The service of user training, creation and maintenance of databases in Quantum GIS software, which is otherwise a free program, is also offered by NMAqua, as well as training and work with measuring equipment and training for non-revenue water analysis according to IWA methodology. QGIS program prezentacija

NMAqua also offers dedicated connectors for maintenance and repair of water supply network manufactured by "Armas" from Serbia, which are unique in the market with a wide range of pipeline coverage of various materials, without water stopping and significant savings in price differences compared to connectors from other manufacturers.

After two days of work, the First Conference on Communal Hydraulic Engineering was successfully completed.

At the level of organizers and business partners, it was agreed that the II Conference on Communal Hydraulic Engineering will be thematically dedicated to the reduction of non-revenue water and losses in water supply systems.

You can watch the video report on the work of the First Conference on Municipal Hydraulic Engineering HERE


Učesnici I Konferencije

Atlantik

Locating the water leak on the hydrant network of the Atlantic printing house

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LEAK DETECTION ON THE HYDRANT NETWORK

At the invitation of the managers from the commercial service of the company of the graphic trade company Atlantik bb Banja Luka, we performed an inspection and review of the water supply network within the company.

The control determined the existence of a fault in the hydrant water supply network with a significant loss.

After tracing the direction of the pipeline, we performed a test with an acoustic sound detector-geophone.

Lokacija kvara

On that occasion, the fault was located in front of the entrance to the office building, which was removed the next day by engaging the necessary mechanization and human resources.

Medjudražje Bihać

Measurement of spring yield in Međudražje - Bihać

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MEASUREMENT OF FLOW IN THE TANK

Based on the Terms of Reference for the Development of the Reconstruction Project of the local water supply system Međudražje in the settlement Međudražje - MZ Zavalje - City of Bihać, Center for Design and Consulting d.o.o. Banja Luka hired us to perform a 48-hour flow measurement at a pre-determined measuring point in the reservoir.

Mjerač u rezervoaru

As part of the project task, among other things, it was necessary to measure the flow in order to see and assess the abundance of springs and available water, for the settlement Međudražje, and at the entrance to the reservoir from the spring.

In order to fully understand the condition of the source and the capacities currently available in the distribution of drinking water, the measurement was performed with an ultrasonic portable flow meter AQF 2000.

Programiranje mjerača protoka

The ultrasonic flow meter is installed on the LŽ 80mm pipeline and programmed for a measurement interval of 1 min in a time period of 48 hours.

Programiranje mjeraca

After the measurement, a report was made with accompanying photo documentation, a measurement diagram and an overview of the minimum, maximum and average flow at the inlet to the tank.

Vodovod Gradiška

Research of underground installations

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DETECTION OF UNDERGROUND ELECTRICAL AND TELECOMMUNICATION INSTALLATIONS

Based on the previously signed Agreement with the "Institute for Water Management" d.o.o. from Bijeljina and for the needs of drafting project documentation for the development and improvement of the water supply system managed by KP "Vodovod" a.d. At the beginning of 2022, we carried out the third part of the research of underground installations in Gradiška.

Istraživanje podzemnih instalacija

We performed research and detection of underground electrical and telecommunication installations on the part of the road from Nova Topola to Aleksandrovac, as well as in the branch towards the settlement Romanovci.

Mjesto elektro kabla

Mjesto kabla PTT

The positions of the mentioned underground installation were identified, registered with geomap positions, and photographed.

The research of the underground installation in this part was performed in a total length of about 6 km

Mjesto elektro instalacije

JKP Kraljeva Gora

Capacity check on the Kraljevo Gora system

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MEASUREMENT OF AVAILABLE QUANTITIES OF WATER

Due to the need to measure the flow in order to assess the available quantities of water, as well as the condition of certain parts of the water supply system Public Utility Company "Kraljeva Gora" d.o.o. Han Pijesak contacted us again with a request for the mentioned works.

In mid-October, 24-hour flow measurements were performed at pre-determined temporary and control measuring points with ultrasonic portable flow meters AQF 2000.

Mjerač protoka AQF 2000

The flow meters are distributed from the Javornik reservoir along the entire network to the end consumers in the settlements of Džimrije, Mrkalji, Mironja and Ljeskovac, so that the condition of the water supply network could be better understood.

Mjerenje protoka

Based on the performed 24-hour measurements, as well as control current measurements, it is evident that there are evident losses on most parts of the pipeline network of the water supply network of JKP "Kraljeva Gora" Han Pijesak.

Mjerenje protoka u rezervoaru

They are especially pronounced in the lower lower parts, where the pressures are the highest and where the water supply network is the oldest, ie in the city center.

Vodovod Istočno Sarajevo

Measurement on the East Sarajevo water supply system

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FLOW AND PRESSURE MEASUREMENT

Na osnovu potreba vršenja mjerenja protoka i pritiska u cilju sagledavanja raspoloživih količina vode, kao i stanja vodovodnog sistema sa filterskog postrojenja “Tilava” sa kojeg se snabdijeva veći dio opštine Istočno Sarajevo, izvršili smo u prvoj fazi početna terenska mjerenja protoka i pritisaka na unaprijed utvrđenim stalnim i privremenim-kontrolnim mjernim mjestima.

Mjerenje protoka

In order to fully understand the state of the network and the capacities available in the distribution of drinking water, in addition to measuring flow and pressure, which were used for analysis, from permanent measuring points, ie measuring DMA zones, measurements were performed with ultrasonic portable flow meters. as well as measurements with portable digital pressure gauges.

Mjerač protoka AQF 2000

Mjerenje pritiska

 

 

Pressure measurement on MMP1 was performed in the underground hydrant in the street of the First Sarajevo Brigade near "Adiko" bank in the time of 48 hours with a measurement interval of 1 min. 

After the pressure logger was dismantled, the data was read and diagrams were made.

In order to improve the situation in the water supply of KP "Vodovod i kanalizacija" a.d. East Sarajevo and maintained the trend of continuous water supply without reductions, it is necessary to implement measures and interventions on the existing water supply and communal infrastructure, and above all to strengthen the detection and elimination of failures in order to save the amount of water currently available.

Fabrika vode