Managing water pressure for water savings in developing countries
Article (Published version)
MetadataShow full item record
Many water utilities, particularly in the developing countries, continue to operate inefficient water distribution systems (WDSs) with a significant amount of water and revenue losses. Various factors, manageable to different extents, contribute to water losses, such as poor infrastructure, high pressures, illegal water use, etc. Whilst the problem of water losses in WDSs is global in scale, solutions need to be tailored to local circumstances due to the various causes of water loss and the mechanisms available to manage them. This paper investigates the potentials of the available pressure management methodologies and their implementation in developing countries, using a case study of a district metering area (DMA) in Kotez-Serbia. The minimal night flow method was applied for assessment of real losses. A particular focus is on assessment of water savings due to reduction of pressures. A total of three methods for estimation of water savings are described and tested against data measu...red in the DMA under initial and reduced pressures: (i) the method based on Leakage Index (LI) calculations, (ii) the PRESMAC model and (iii) a newly-developed method which is based on the assumption that both leakage and consumption are pressure dependent. The results indicate that the third method leads to the most accurate prediction of the total amount of water savings under reduced pressures, with only 6% difference between measured and estimated volume of saved water.
Keywords:water supply / water losses / minimum night flow / pressure / consumption / water savings
Source:Water Sa, 2014, 40, 2, 221-232
- South African Water Research Commission
Showing items related by title, author, creator and subject.
Improving quality of drinking water in the water treatment plant by decrease of hardness with respect to sodium concentration control Govedarica, Ognjen; Rajaković-Ognjanović, Vladana; Đukić, Aleksandar; Lekić, Branislava; Babić, Branislav (Prague, Czech Republic: University of Chemistry and Technology, 2019)
Management of water losses in water supply systems: Book concept / Upravljanje gubicima vode u vodovodnim sistemima - koncept knjige Prodanović, Dušan; Bogdanović, Predrag; Ivetić, Marko; Babić, Branislav (Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd, 2006)
Assessment of corrosive characteristics of water according to indices of water aggression: Example of well field in Vojvodina / Procena korozivnih karakteristika vode prema indeksima agresivnosti - primer bunarskog polja u Vojvodini Nedeljković, Andrija; Rajaković-Ognjanović, Vladana; Branisavljević, Nemanja (Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2016)