14 resultados para vesilaitokset
Resumo:
Water utilities 31.12.1972
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English summary: Comparative studies on raw water quality and treatment costs in Sweden and Finland
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Vuorokausivirtaaman ennustaminen yhdyskuntien vesi- ja viemärilaitosten yleissuunnittelussa.
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Water quality in water utilities in 1972.
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Rapid filtration in iron removal from groundwater.
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Water supply and sewer systems 31.12.1974.
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Water quality in water utilities in 1973.
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Internal corrosion of water pipes.