Програма на научната конференция - Министерство на ...

STRATEGY FOR MONITORING OF FUNCTIONAL MICROBIALBIODIVERSITY IN POLLUTED SIDEMENTS: CASE STUDY OF ISKARRIVER – MIDDLE PARTI. Yotinov, Kr. Kostadinova, A. Futekova, Y. Todorova, Y. TopalovaSofia University, Faculty of Biology, 8 Dragan Tzankov Blvd, 1164 Sofia,Bulgaria; yovana.todorova@gmail.comEnvironmental pollution caused by the release of a wide range of xenobioticcompounds has now assumed serious proportions. In Bulgaria one of the mostcritical sites is middle part of Iskar River. The river ecosystem suffers the effects oflong-term pollution with municipal wastewaters of Sofia city and wastes fromdifferent hazardous industries. The sediments have accumulated highly toxic anddifficult-biodegradable pollutants - heavy metals, petrochemicals, etc. However,the growing need for using renewable energy sources stimulates the developmentof projects aimed at the utilization of hydropower in this section of river.Nowadays, the construction and initial functioning of cascade of 9 mini-hydroelectric powers in the middle part of the Iskar River is in progress. The effectivefuture operation of cascade needs an appropriate sediment bioremediation and thefirst step is the proposal of strategy for monitoring and assessment of naturalpotential of microbial communities to transform and eliminate the pollutants. Theproposed strategy for monitoring of the microbial diversity will follow the mainphysiological groups of microorganisms directly involved in biotransformationprocesses and effects of hazardous pollutants on functional level. The strategyincludes analysis of hydrochemical, microbiological and enzymological parametersof sediment. The data will be used as a basis for developing and application ofbioremediation program by use of self-purification potential of natural microbialcommunities as a low cost tool to minimize environment pollution in sedimentsand increase of energy effectiveness.02СТРУКТУРА НА МИКРОБНИТЕ СЪОБЩЕСТВА НА БИОФИЛМА ИСУСПЕНДИРАНАТА БИОМАСА В ХОДА НА ПРЕЧИСТВАТЕЛЕНПРОЦЕСИ. Шнайдер, Я. ТопаловаСофийски университет „Св. Климент Охридски”, Биологически факултет,Катедра „Обща и приложна хидробиология”, гр. София – 1164,бул. „Драган Цанков” 8, Тел./Факс: 02/ 8167289,e-mail: i.schneider@abv.bg ; yanatop@abv.bgПречиствателните процеси с фиксирана биомаса са широко приложими впрактиката за пречистване на отпадъчни води: с високи концентрации наорганична материя; с непостоянно органично натоварване; със съдържаниена токсични вещества и т.н. Тези причини, както и по-леснотовъзстановяване на биофилма при стресови условия, и по-лесното управление85