EEEP 4/2004
About the new and old cars and the quality of air
S.
Kamenova, Zh. Bekyuarova 5
Regenerative sources
o
f energy and environment
A. Toshev, J. Petkov, D.
Apostolov 13
Potentional
applications of mixed bacterial communities in EDTA biodegradation
V.
Ivanova, A. Tonkova, A. Vassileva, M. Safarikova
III. Technologies for depolution
Ecological assessment of a
new
technology of the methane fermentation of domestic organic wastes
B. Baykov,
L.
Nikolov, V.
Mamatarkova
39
IV.
Bioinformatics and
bioautomatics
Intelligent software sensors application for microbial
biodegradati on of naphthalene
S. Vassileva, B. Tuleva, N. Christova,
P. Pet rov
49
V.
Possibilities
for effective soybean cultivation in
Atanas
Mehandjiev
61
VII.
National and international scientific forums
National conference with young scientists
school “Ecological Engineering and Envir onment Protection”
67
About the new
and old cars and the quality of air
S. Kamenova,
Zh. Bekyuarova
5
Abstract: In this research
we present results for specific polluting emissions, discharged by
motor
vehicles at three characteristic
Regenerative sources of energy
and
environment
A. Toshev,
J. Petkov, D. Apostolov
Abstract. World fuel reserves
and possible perspectives of their consumption are discussed. Renewable
energy
sources supported by natural energy carrier are shown as alternative.
They are
considered as inexhaustible. A principal review of the most perspective
renewable
energy sources is made.
Potentional applications of
mixed bacterial communities in EDTA biodegradation
V. Ivanova, A. Tonkova, A.
Vassileva, M. Safarikova
21
Abstract. The large qua ntities of polyaminopolycarboxylic
acids, such as
EDTA, DTPA,
NTA,
used commercially in a variety of domestic products and
industrial processes, are not degraded by conventional biologi cal and
physicochemical methods for the treatment of waste water and the
purification
of drinking water. These chelating agents, EDTA in particular, had thus
become
the measurable organic compound with the highest concentration in many
surface
waters and in drinking water. To date, only few microorganisms
have been reported to degrade EDTA. So me microbiological aspects of
the
biodegradation of this complexing agent,
catabolic
steps in EDTA degradation, and biological methods for the removal of
this
chelating agent from the waste waters are reviewed.
Ecological
assessment of a new technology of the methane fermentation of domestic
organic
wastes
B. Baykov,
Abstract: An ecological assessment was d
one on the technology of biogas production
from domestic organic waste according t o two criteria: level of
mineralization
of the substrate and content of biogene
and toxic
microelements in the compost. Optimal parameters were determined of
temperature
and content of dry substance in t he substrate. It is proved that the
domestic
organic waste can be used by methane fermentation.
Basic phenomena in the
bioprocess systems with fixed film on solid inert supports.
L. Nikolov, V. Mamatarkova
39
Abstract: Main features of the biofilms formed on the solid inert supports as
the ma in
part of the industrial bioprocess systems with fixed film are described
on
basis of analysis of literature. In this first part the role of most
applicable
laboratory apparatuses and experimental methods to research of nature
of these
systems is discussed. Special attention is paid to the laboratory biofilm reactor in connection with their key
role in the biofilm system investigations.
Intelligent software
sensors application for microbial biodegradation
of naphthalene
S. Vassileva, B. Tuleva, N. Christova, P.
Petrov
49
Abstract.
G. Georgiev
57
Abstract: The investigation on the genet
ic resources of forest tree species is an
important task revealing the genetic diversity of the forest fund. The
object
of this study is the genetic resou rces and form variability of Sorbus torminalis
(L.) Crantz in the region of
Possibilities
for effective soybean cultivation in
Abstract:
On the basis of an analysis of
national experience and achievements in the field of soybean
cultivation its
potentialities are discussed and the main trends of development in