EEEP 1/2003
Екологично инженерство и опазване на околната среда - ново начало
Реабилитиране на годишната норма за замърсяване на въздуха със серен диоксид
Д. Недялков, Ив. Виденова 4
Вятърът - алтернативен източник на енергия за България
А. Н. Садовски, Л. А. Садовски 9
Растенията в космическитe екологични системи за осигуряване живота на екипажите
Т. Иванова 15
II. Технологии за пречистване
Мониторинг на процеса на получаване на биогаз (на английски език)
Пречистване на микробно замърсени води с имобилизирани фотосенсибилизатори
М. Кръстева, С. Артарски 32
Биосорбция на медни йони от имобилизирани на полиакрилнитрил дрожди
С. Михова, Ц. Годжевъргова 36
III.Биоинформатика и биоавтоматика
Метод за диагностика на биосензор с две диализни мембрани в условията на лимитираща дифузия
Моделиране на метановата ферментация на органични отпадъци с апарата на изкуствените невронни мрежи
IV. Лесобиология и лесотехника
Генно запазване на бьлгарските благородни широколистни видове
V. Нови книги 63
VI. Национални и международни научни форуми 64
VII. Екологични институции и организации 65
(11. 02. 1929 – 31. 10. 2002)
VIII. Юбилейна
Проф. Я. Иванов на 70 години 69
Проф. Ал. Нейков на 60 години 70
IX. Информационни
материали от
чужбина
71
Реабилитиране на годишната норма за замърсяване на въздуха със серен диоксид
Д. Недялков, Ив.
Виденова
Rehabilitation annual standard of air pollution with sulfur dioxide
D. Nedialkov, Iv. Videnova
Abstract. In this study the necessity of SO2
annual standard is grounded. Correlation dependencies between daily
standard
and annual concentrations of SO2 are investigated. It was
found that
annual standard of 50 mg/m3 is
stronger than recent daily standard. It is suggested an Annual Air Quality Index, determined by
using three
standards – annual, daily and hourly.
Вятърът - алтернативен източник на енергияя за Бълггария
А.
Н.
Садовски, Л. А. Садовски
Wind
– alternative energy source for
Abstract. The purpose of
present study is more precise determination of Bulgarian regions'
capabilities
to use wind energy. With the help of Cluster analysis are selected
groups of
locations, which are of interest for development of wind energetic.
Spatial
analysis with GIS helps to produce maps with geographic distribution of
territories in relation to indices: mean annual wind speed (m/sec),
annual
number of days with strong wind (V³14 m/sec) and
annual frequency of wind by speed in gradation (%), and their
categorization.
Растенията в космическитe екологични системи за осигуряване живота на екипажите
Т.
Иванова
The plants in the space ecological life-support systems
T. Ivanova
Abstract. The creation of
closed controlled ecological life-support systems (CELSS), based on
biological
recycling of chemical elements, is an important scientific task, related to
future manned
space missions. The SVET Space Greenhouse, created by the Bulgarian
scientists,
is the first automatically operating and controlling environment
equipment for
higher plant growth – a basic link of CELSS. A lot of long-duration
plant space
experiments were carried out in it onboard the MIR Orbital Station in
the
period 1990-2000. Significant results in the field of Fundamental
Gravitational
Biology proving that plant could be successfully used in the future
CELSS were
received.
Мониторинг
на процеса на
получаване на биогаз (на
английски език)
И.Ангелидаки,
П. Пинд
Mmonitoring the biogas process
Many modern large-scale biogas plants have been constructed recently, increasing the demand for proper monitoring and control of these large reactor systems. For monitoring the biogas process, an easy to measure and reliable indicator is required, which reflects the metabolic state and the activity of the bacterial populations in the reactor. In this paper, we discuss existing indicators as well as indicators under development, which can potentially be used to monitor the state of the biogas process in a reactor.
Пречистване на микробно замърсени води с имобилизирани фотосенсибилизатори
М. Кръстева, С. Артарски
Purification of microbial contaminated waters with immobilized photosensitizers
M. Krysteva, S. Artarsky
Abstract: Membranes of chitosan and triacetyl
cellulose
were modified with Zn (II) phtalocyanine
and rose bengale
respectively.
Modified membranes were used in a specially constructed device for
water
sterilization. Bactericide effect of immobilized photosensitizers
was studied toward Esherichia
coli and Pseudomonas
aeroginosa. Strong bactericide effect
of both photosensitizers was registered.
Биосорбция на медни
йони от имобилизирани
на полиакрилнитрил дрожди
С. Михова, Ц. Годжевъргова
Biosorption of copper ions by polyacrilonitrile immobilized yeast
S. Mihova, T. Godjevargova
Abstract: Biosorption of Cu2+ by entrapped dead cells of Saccharomyces cerevisiae 54 in porous polyacrilonitrile beads was studied in static conditions. The adsorption characteristics of the obtained biosorbent beads were studied by various pH and temperatures, as well as by different initial concentration of Cu2+. The dead cells of S. cerevisiae were found to show better sorption ability at pH 3.5 by 30oC. Also the embedded yeast biomass shows excellent adsorption characteristics – they are able to uptake 45,6 mg Cu2+/g biomass (dry weight) at 200 mg.l-1 initial concentration of metal ions. The process of uptake of Cu2+ obeys the Freundlich isotherm.
Метод за
диагностика на биосензор с две диализни
мембрани в
условията на лимитираща дифузия
A.Hейков,
П. Кацарова, В. Рангелова
Biosensor diagnostic method with two dialyse membranes and limitation diffusion conditions
A. Neykov, P. Katsarova, V. Rangelova
Abstract. Determination of internal parameters is very important for biosensor development. Indirect methods are usually use for measurement of parameters. In this paper we suggest a diagnostic biosensor method and algorithm with two dialyze membranes and limitation diffusion conditions. The mathematical requirements for diagnostics are present and some experiments with enzyme and tissue biosensors are made. The values ot internal diffusion parameters are calculate after that.
Моделиране на метановата ферментация на органични отпадъци с апарата на изкуствените невронни мрежи
И.
Симеонов, Е.Чорукова
Modelling of the methane fermentation of organic wastes with artificial neural networks
Abstract. Neural models (with one input - one output, two inputs – one output and two inputs – two outputs) of the methane fermentation of organic wastes stimulated with addition of glucose are developed on the basis of experimental data and generated data from known deterministic model of the process. They may be useful for process control.
Генно запазване на бьлгарските благородни широколистни видове
А. Александров, Д. Пандева
Gene
conservation of bulgarian
noble hardwoods
A. Alexandrov, D. Pandeva
Abstract. Noble Hardwood
species occupy 176 932 ha or about 8% of the deciduous forests area in
