Hidrológiai Közlöny 1975 (55. évfolyam)

6. szám - Pálhidy Attila: Felszíni vizek kezelése ivóvíz céljára

250 Hidrológiai Közlöny 1975. 6. sz. Pálhidy A..- Felszíni vizek kezelése 4. kép. Szolnok város 45 000 m

3/nap teljesítményű Tisza vizet tisztító ivóvízműve Picture 4. Municipal water works oj 45 000 cu.m/day capacity at Szolnok supplied with wider diverted from the Tisza River 5. kép. A Szolnoki Víztisztitómű építkezése Picture 5. Construction work on the Szolnok Water Works gunk elé, amely kevesebb átszabályozással legyen üzemeltethető, és változó nyersvíz minőség mellett is mindig kifogástalan ivóvizet tudjon előállítani. El kell ismerni ugyanis azt, hogy bár a jelenlegi víztisztító műveinkben a hazai realitások keretén belül minden korszerű fegyvert felvonultatunk a kifogástalan vízminőség érdekében, ezeknek a technológiai üzemeltetése igen magasszínvonalú képzettséget igényel és nem kevés gonddal jár. Sokkal nagyobb gondot kell a jövőben a felszínivíz-tisztító művek beüzemelésére fordítani, erre az eddigieknél sokkal több munkát érdemes áldozni, hogy ezekben az értékes és költséges beruházásokban levő lehetőségek a valóságban hasznosuljanak. Treatment of surface waters for domestic supply By Pálhidy, A. The use of surface waters as sources of domestic water supply has assumed major proportions round 20 years ago in Hungary. The demand for drinking water could be met previously from high-quality ground water resources which were available in virtually every part of the country. The consumers require surface waters to be treated to the same quality standards, which can be accomplished at advanced treatment plants only. The round 1100 professionals engaged in water treatment designing at MÉLYÉPTERV among others have developed the designs for 10 niajorsurface waters treatment plants for drinking water during the past 20 years, with capacities ranging from 5 to 200 thousand cu.m/day. The raw water for domestic supply purposes is diverted principally from the Danube and the Tisza rivers. Unfortunately, both water courses have been increasingly polluted by industrial effluents, resulting mainly in taste- and odour complaints. Waters diverted from plain-land storage and irrigation canals have also been, used, where treatment problems arise primarily on account of intensive biological life. The sudden great demand for drinking water to be produced from suface waters has warranted the development of the treatment methods corresponding to the particular conditions prevailing in Hungary and of the domestic production of the mechanical equipment required. The treatment plants designed involve advanced drum filters, complex chemical feeding devices, clarifiers and filters. The suspended and dissolved pollutants are removed by oxidation, adsorption, chemical coagulation and filtration. The latest plants have been designed with ozone treatment and activated carbon filtration as well. The floating silt blanket clarifier developed at MÉLYÉPTERV is of special interest, which lias been provided with multiple controls to cope with the most difficult treatment problems. The large open filters are designed with completely corrosion resistant and very economical filter bottoms and with electric controls. A high standard of operation of the treatment plants is made possible by advanced instrumentation and laboratory equipment, by extensive remote controls and by mechanical equipment eliminating completely heavy physical labour.