EEEP  3-4/2005


C O N T E N T S
 

Editor's comment

I. Simeonov                                            3

I. Plenary papers

Ecological assessment of technologies for utilization of domestic organic wastes

Bayko Baykov, Botyo Zaharinov           4

Bioprocess systems with fixed film - the base for development of ecological friendly technologies

L. Nikolov, V. Mamatarkova            16

The challenges in wastewater treatment technologies of the 21 century

Y. Topalowa                                         32

II. Human and Biosphere

Critera for assessing chemical heterogeneity of biosphere

K. Kirov, B. Baykov, M. Gugova, I. Popova, A. Bliznakova, B. Zaharinov, S. Kotzeva                   41

Size and age structure of balcan barbell (barbus petenyi) catchments in Iskar river (Bulgaria)

D. Rozdina, G. Raikova Petrova         50 

Bioindicator epigenetic characteristic of the zoomonitor yellow-necked wood mouse (Apodemus flavicollis) in park territories in Sofia

G. Markov, M. Gospodinova                 55 

Enzymological parameters of sediments in upper part of Iskar river

Y. Todorova and Y. Topalova                60

Application of Ardrea analysis for early warning of the effects of oil pollution in coastal marine ecosystems research into laboratory “microcosm” model

N. Todorova, I. Ivanov, A. Hristov, V. Karamfilov     69

III. Microorganisms and Environment

Water quality alterations in river Iskar as à result of the flood events in 2005

D. Parvanov, Y. Topalova, Y. Todorova, L. Kenderov                   76

Isolation of arsenic resistant and arsenic transforming sulphate - reducing bacteria

K. Krumova, V. Groudeva                                        84

Prokaryotic tests for assessment of metal toxicity in soil and water

V. Groudeva, A. Stoyanova, I. Ivanova                     95

IV. Technologies for Depolution

Heavy metal biosorption by mycelial by- product of Aspergillus Niger b77

K. Tsekova, D. Todorova, M. Ianis, S. Ganeva       104

Isolation and characterization of microorganisms, degrading polycyclic aromatic hydrocarbons at aerobic and anaerobic conditions

N. Fuchedzhieva, T. Avramova, D. Galabova           109

Bulgarian experience for industrial biogas production from cattle’s wastes

A. Mirkov                                                                114

V. Ecological and Sustainable Agriculture

Basic ecological principles on biological production from stock-farming

S. Kotseva                                                               119

VI. National and International Scientific Forums

National conference young scientists’ school “Ecological engineering and environment protection”

L. Nikolov                                                                132



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