Vízügyi Közlemények, 1987 (69. évfolyam)
3. füzet - Véha Jenő Endre: Vastalanítási eljárás kiterjesztése rétegvizek vízkezelésére
434 Véha Jenő Endre - правила противопожарной безопасности, - правила техники безопасности, - природоохранные аспекты ила с содержанием мышьяка, - аспекты управления с целью использования результатов дальнейшего развития и возможностей технологической обработки пластовых вод в практике проектирования и строительства. * * * The extension of a deironizing process on the treatment of deep-groundwaters by J. E. VÉHA, M. E. In the water of the deep wells of Hungary one may find generally 1 to 3 g/m 3 dissolved iron and manganese mostly in hydrocarbonic bond. Also, a significant amount of arsenic and methane are part of these deep waters (Table I). The deep waters of the Great Plains are not suitable for drinking or for the food-industry, only after treated. The experiences on the processes of deironization and demanganization used in Hungary, and called Fermasicc, are summarized by the author. Then, the results obtained in laboratories on water purification and pursuing measurements on arsenic silts - in the framework of a further developed Fermasicc process - are presented (Table I). Experimental measurements are extended to observe the results and the degree of effectiveness of the combined technology consisting of a filter layer coated by iron III. chloride (FeCl 3 • 6 H 20) and of the dosage of potassium permanganate (KMn0 4). The paper gives answer to the problem of how the original Fermasicc procedure was further developed and supplemented (increase of the velocity of the sprinkler, increase of the time of residence, relative decrease of the filtering velocity, determination of the grain-size, of the filter-fill coating, of the specific grain-surface, introduction of the dosage of KMn0 4 and FeCl 3) in order to reduce iron and manganese, but also methane and arsenic in the exploited deep groundwater resources (Fig. 1 and Table II). It should be mentioned that the following items were investigated in such a depth that the results are readily applicable in planning and construction: - preparation of the coated filter material, and the possible ways of use, - exchange of the filter-fill, - the so-called combined rinsing equipment and its characteristics, - the aspects of the hydraulically and compressed air driven auxiliary processes, - the possible treatment and the uses of arsenic filter materials and arsenic effluents, - parameters of effluent-suspensions, - building mechanics, - fire-fighting, - safety-techniques, - environmental protection against the harms of arsenic sludges, - the control of small waterworks. * * * L'utilisation du procédé de l'élimination du fer pour le traitement des eaux en profondeur par VEHA J. E. ingénieur mécanicien En Hongrie, les eaux des forages en profondeurs ont une teneur de fer et de manganèse dissouts de 1 á 3 g/m 3, dont la majeur partie est en liaiosn hydrocarbonatée. Ces eaux en profondeurs sont également polluées par les composés d'arsénic et de méthane ( Tableau I.) Les eaux en profondeur de la Grande Plaine hongroise, généralement exigent une épuration pour une utilisation domestique
