Sustainable water network management in Lempäälä municipality
Chowdhury, Rahaman (2012)
Tampereen ammattikorkeakoulu
2012
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2012100214065
https://urn.fi/URN:NBN:fi:amk-2012100214065
Tiivistelmä
The problem of NRW (Non-Revenue Water) in the water distribution network is a com-plex situation and causes trouble for water utilities worldwide. Leakage in the water system is one of the main sources of huge amount of water loss that involves poor ser-vice, complaint about quality standards and cost increase. The recovery of water loss due to the leakage in the distribution and transmission pipe can provide a solution. In LMWS (Lempäälä Municipality Water Service) the amount of lost water due to the leakage is a major problem. One fourth of the total water in the system is lost where most of the losses are caused by leaks.
The research concerns mainly the water management of LMWS, leak localisation and financial aspects. Literature survey was used to provide the clear picture of water loss and related topic. The common internationally used tools were also focused to reduce water losses. The main objective of the research was to locate leaks in the water distri-bution network and the survey was done only on the cast iron, asbestos cement and con-crete pipe connection network. In this research financial loss caused by the water leak-age was also assessed.
According to the key figure of 2011, the volume of NRW was estimated 266000 m3, where 26600 m3 of water was apparent loss and the rest 239400 m3 was real loss and it was due to water leakage. The price of this water was calculated 139869,5 euro. Then, according to the leak report of the earlier years; the leak repair cost was figured out 13200 euro, where the financial loss due to the leakage was estimated 67503,8 euro.
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The research concerns mainly the water management of LMWS, leak localisation and financial aspects. Literature survey was used to provide the clear picture of water loss and related topic. The common internationally used tools were also focused to reduce water losses. The main objective of the research was to locate leaks in the water distri-bution network and the survey was done only on the cast iron, asbestos cement and con-crete pipe connection network. In this research financial loss caused by the water leak-age was also assessed.
According to the key figure of 2011, the volume of NRW was estimated 266000 m3, where 26600 m3 of water was apparent loss and the rest 239400 m3 was real loss and it was due to water leakage. The price of this water was calculated 139869,5 euro. Then, according to the leak report of the earlier years; the leak repair cost was figured out 13200 euro, where the financial loss due to the leakage was estimated 67503,8 euro.
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