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HU895260D0
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Apparatus for flocculation purifying-filtering fluid particularly water
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HUT54588A
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Process for removing organic material and ammonia content of water, particularly of sewage
|
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HUT54950A
|
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Process for biological purifying and chemical dephosphorinating waste waters
|
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HUT55462A
|
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Climated water-treating plant
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HU204478B
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Process for removing phosphorous contene of waste waters with biological strenthening
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HUT57164A
|
|
Process and equipment for the biological-physical purification of sewages
|
|
HUT43014A
|
|
Process and equipment for solution of gaseous materials in liquid
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HU207273B
|
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Apparatus for dehydrating slimes first of all slimes of waste waters
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HUT39374A
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Device for filtering liquids particularly water
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HUT40493A
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Method for utilizing the static gain of head of liquid medium
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