Hidrológiai Közlöny 1965 (45. évfolyam)

1. szám - Dr. Bolberitz Károly: Felszíni vizek íz- és szaganyagainak problémái

Dr. Bolberitz K.: Felszíni vizek íz- és szaganyagainak problémái Hidrológiai Közlöny 1965. 1. sz. 29 [10] Beán, E. : Progress report on water quality criteria J. AWWA, 54 (1902). 1313—1330. [11] Tomlinson, H. : Measurement of organic pollutants. Water & Sewage Works 109 (1962) 420— 424. [12] Romano, A. : Studies on Actinomycetes and their odors. J. AWWA. 55 (1963) 169—176. [13] Dornbush, J. : The effect of physicochemical processes in removing organic contaminants. J. Water Pollution Control Federation, 35 (1963) 1325—2338. [14] Spicher, R. : Potassium permanganete oxidation of organic contaminants in water supplies. J. AWWA. 55 (1963) 1174—1194. [15] Atkins, P. : E^aluation of carbon chloroform extracts. Water S: Seurigc Works, 110 (1963) 281—284. [16] Hamilton, C. : A new solvent system for improved extraction of activated charcoal. Water & Sewage Works, 110 (1963) 422—423. [17] Sproul, O. : The significance of trace organics in water pollution. J. Water Pollution Control Federation, 33 (1961) 1188—1198. [18] Morris, R. : Chemical aspects of actinomycetes metabolites as contjibutors of taste and odor. J. AWWA, 55 (1963) 1380—1390. [19] Ludwig. H. : Analytical characteristics of oil-tar materials. J. Water Pollution Control Federation, 33 (1961) 1123—1139. [20] Skrinde, R. : Organic micropollution instrumentation and measurement. J. Water Pollution Control Federation, 35 (1963) 1292—1306. 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OflHaKO npH 3T0M H.MeiOTCH BCe HeflOCTaTKH CyÖ'beKTHBHoro onpeaejieHHfl. npii pa3JiiiMHbix cnocoöax BMTH>KKH opraHHMecKne BemecTBa norjioiuaioTCH H pacTBopHioTcn TOJibKO OTMacTii. riojiyHeHHbi.M cyMMapyioinHM pe3yjibTaTo.vi H3MepaeTCH KOJiHHecTBO opraHimecKiix 3arpH3HJIIOIHHX BemecTB, oflHaKO Majio roBopiiTcn o BemecTBax, npHflaioiunx BKyc w 3anax Bo«e. noApoöHbiMii Hcc.ne,noBaHiiíiMH TpeöyioTCH floporne oöopyflOBaHHji ii 6ojibiune paöoTbi, pe3yjibTaTbi K0T0pbix npnroaHbi juiyi nocjieayromHx oÖTjHCHeHHH, HO fljifl np0rH03a HeT. TaKHM oőpa30M Bonpoc onpeaejieHHH ceroflHH eme He perneH. Taste and Odour Problems in Surface Watcrs By K. Bolberitz Increasing pollution of surface waters, on the one hand, and the growing necessity of utilizing these waters for domestic supply, on the other, resulted in the necessity of devoting increasing attention to the substances causing taste and odour of water. Besides importance these investigations assumed a certain urgency as well. These materials may be widely different, their classification and identification according to origin appears therefore desirable. According to origin these materials may be 1. natural taste and odour materials in surface water, 2. alien taste and odour materials introduced into surface waters, 3. secondary taste and odour materials developing in water under the effect of foreign matter introduced, and finally, 4. taste and odour materials produced in water during the treatment process. Natural taste and odour materials are produced by micro-organisms living in water, prolificating as a consequence of pollution in the recipients. Abundance of certain organism types is mostly of a seasonal character. Foreign taste- and odour materials originate from industry and may be of a very wide variety. Originál microorganisms in water may multiply, or dwindle under their effect. Objectionable taste and odour effects may finally be due to the treatment of surface waters as well, particularly because of chlorine compounds produced by chlorination. Taste and odour materials can be determined most reliably by direct observation. This, however, is afflicted by all sources of errors characteristic of subjective determination. Organic materials can be absorbed and dissolved in part only in various extraction procesess. The totál result obtained is indicative of the quantity of organic polluting materials but does yield very little information on taste and odour materials. More detailed investigations call for expensive equipment, considerable labour and the results obtained are suitable for explaining past phenomena, but hardly for forecasting. The problem of determination is thus still alive.