OP-II-3

PP-III-76The elementary version of device-technological design of adsorbtive waste waterpurifications is use of the block from two devices – the blender in which sorbentsuspension in cleared water mixes up before achievement adsorbtive balance, andsediment bowl in which fulfilled adsorbent separates from the cleared water.Calculation of such scheme, taking into account the maximum adsorption data ofpollution from water environments the specified sorbents, has shown that theexpense of the last is inadmissible is great (for example, in the case of phenol it willmake 1,745 kg/l for Н - mordenite, and for the activated coal made of plum stones –2.54 kg/l, at initial concentration 1 g/l) [2,3]. Considerably to reduce the expense ofadsorbent use of more perfect schemes of device design – crossing-step or counterflowallows.As in both considered schemes at equal number of the basic devices and, hence,identical capital investments when economic feasibility is defined by operationalexpenses, preference, certainly, it is necessary to give counter flow-step scheme.References[1]. Koganovsky A.M., Klimenko N.A., Levchenko T.M., Roda I.G. (1990). - Adsorption of organicsubstances from water, Leningrad Chimia, p. 256[2]. Torosyan G.H., Aleksanyan A.R., Martirosyan V.G., Galstyan G.F., Davtyan V.A.,.Sarkizova J.S.,Kazinyan A.A. (2008), Use agricultural residues as a sorbent for removal of organic substancesfrom water solutions, Chemistry and Chemical Technology (Russia). 51, 12, 99-101.[3]. Torosyan G.H., Isakov A.A., Hohannisyan D.N. (2006) The sorbent for thin sewage treatmentfrom organic pollutants // Bulletin of International Ecological association, Sankt Petersburg. 11,N8, 2. 58-61.AcknowledgmentThis work was supported by the grant from Ministry of Higher education & Science ofRepublic of Armenia. We gratefully acknowledge to Engineer Anatoly Isakov for their kindhelp and comments.583