Vízügyi Közlemények, 1972 (54. évfolyam)

4. füzet - Rövidebb közlemények és beszámolók

(60) Four types of floating equipment used for cutting aquatic weeds are described, mentioning also typical data and for one of them operational studies are attached (Fig. 2). In conclusion suggestions are submitted concerning mechanical weed control in Hungary, with special regard to drainage and irrigation canals. 5. Toókos, Ildikó (Miss) Dr., Chem. Engr. : Experiences gained in Finland (For the Hungarian text see pp. 353) A small fraction is only presented here of the wealth of experience gained in connection with water management by the author during a four-months stay in Finland including visits to different research institutions. In Part I information received in some offices of the Finnish National Board of Waters, in Part 2 that at the Finnish Pulp and Paper Research Institute, while in Part 3 the general impressions gained at the pollution control laboratory of Helsinki City are described. The organization of individual agencies and research institutions, the activities there are presented in a form permitting useful conclusions to be arrived at under domestic conditions. In Table I the organizational scheme of the Finnish National Board of Waters is reproduced.