Treatment of water of swimming-pools and baths - Part 3: Combination of process: Flocculation, filtration, ozonization, absorbing filtration, chlorination— 7 стр.
Treatment of water of swimming pools and baths - Part 4: Combination of process: Flocculation, ozonisation, multilayer filtration, chlorination— 10 стр.
Treatment of water of swimming pools and baths - Part 5: Combination of process: Flocculation, filtration, adsorption at granular activated carbon; chlorination— 9 стр.