
ORGANISMS AND MICROORGANISMS COMMUNITIES ANALYSIS IN SEWAGE SLUDGE BEFORE AND AFTER THE SANITATION PROCEDURE
(Stef92 Technology, 2011-06-20, Gabriela-Mihaela Paraschiv)
Now showing 51 - 83 of 83

(Stef92 Technology, 2011-06-20, Gabriela-Mihaela Paraschiv)

(Stef92 Technology, 2011-06-20, Eva Pertile)
Considering polycyclic aromatic hydrocarbons significant indicators of anthropogenic pollution of the environment, a pilot study obs erves the content of selected polycyclic aromatic hydrocarbons (PAHs) in the sediments of water-bearing subsidence troughs in the Karvina Region. The relevance of PAHs as a pollution load indicator is also supported by the results of monitoring PAH contents in the air of the Karvina Region, namely because PAHs are characteristic organic pollutants in the overall Ostrava- Karvina indu...

(Stef92 Technology, 2011-06-20, Barbora Grycová)
The product of biogas plants, in addition to em erging biogas as well as digestate, which is usually used for fertilization. Due to the relatively strict legislative requirements, which must meet the digestate to be used fo r fertilization, it is necessary to design and evaluate other potential alte rnative use of digestate. This paper presents the initial laboratory experiments of pyrolysis and gasifi cation of dried digestates, focusing on the composition of gaseous products of these pr ocesses, utilization of s...

(Stef92 Technology, 2011-06-20, Ticuţa Negreanu–Pîrjol)
Eroded soils improvement issues are a prior ity, but it is better to solve such problems using easily recoverable natural compounds as the residual marine biomass. This possibility is insufficiently studied but can solve multiple envir onment problems. The study of marine organisms’ communities that are broth to the Romanian Black Sea shore by the waves, is aimed at qualitative an d quantitative analysis of macroalgal and invertebrate communities, seasonal dynamics of these communities, analysis of macrobiologic...

(Stef92 Technology, 2011-06-20, Jozef Junák)
In this paper, the utilization of coal fly as h and bottle glass waste in building industry is described. In the first step of our experiment we made concrete samples with partial replacement of cement by activated coal fl y ash from Slovakian power plant Novaky. The second part of our study is focused on utilization of selected fractions of bottle glass waste in concrete production. From all mixtures, samples with dimension 160x40x40 mm were made in our case study. After 28 and 90 days of hardening, samples were ...

(Stef92 Technology, 2011-06-20, Eva Mačingová)
The enhanced oxidation of su lphide minerals by mini ng activities is a worldwide problem of significant environmental interest because of leading to the generation of Acid Mine Drainage (AMD). These waters e xhibit very different chemical and physical properties depending on their origin and the geochemical nature of the site of exploitation. Low pH, high concentration of sulphates and various heavy metals cause their deleterious effect on the environmen t. Treatment methods to address AMD are focused on neutrali...

(Stef92 Technology, 2011-06-20, A Kuznetsov)
The present paper is devoted to the results of long-term field observations of oil pollution transformation in sma ll watercourses of the Lower Don River basin (Russia), on the Atlantic coast of France and in the Strait of Kerch polluted by spilled oil. The investigations included visual assessment and sampling of oil slicks, water and sediment cores. The analysis of samples were carried out with the use of th in layer and column chromatography, optical and gravimetri c methods making possible to determine separat...

(Stef92 Technology, 2011-06-20, Ajay Kumar Agarwal)
Ever increasing industrialization has b een an important factor causing many environmental problems. Man made inputs asso ciated with industrial practices; mineral exploration, industrial processes and solid wa ste management contribute to heavy metal contamination of natural ecosystem. Nickel is one of the heavy metals that are present in industrial water from traces to very high quantity. Extraction of Ni 2+ from the effluents using flyash depends on various parameters such as pH, quantity of fly ash and sorptio...

(Stef92 Technology, 2011-06-20, Ekrem Bektasevic)
This paper represents results of measuring of sedimentary dust at two locations. One location is at SM where installed is old fa shioned technology for limestone processing. The other location is „Kota“ near Vareš, where installed is contemporary technology for limestone and spilite processing with application of BAT (the best available technique), and is a property of company „BBM Vareš“ d.o.o. from Vareš. Measurements confirmed that during limestone processing wh ere old fashioned technology is instal...

(Stef92 Technology, 2011-06-20, Irina Neta Gostin)
Aquaculture is a rapidly growing industry that is vital to supplying the increasing demand for food production worldwide. In recent decades, Aristichtys nobilis (Bighead carp) and Hypophthalmichthys molitrix (Silver carp) have been widely introduced into European waters for algal control and as a food source. This species are very sensitive to various environmental and physical stresses and thus more susceptible to bacterial invasions resulting in disease outbreak and mortality. The ma jority of bacterial fish pat...

(Stef92 Technology, 2011-06-20, Nikolai Nikolov)
Developed is software package for acoustic calculations, named SoundBG. Described program modules should be considered as a fi rst step in creating a sufficiently complete programming library for acous tic calculations, which will gradually replace the traditional graphics, tables and approximate formulas.

(Stef92 Technology, 2011-06-20, Omran Gebril Abdelnaser)
Solid waste management has become an environmental concern for many developing countries including Libya country. There have been several significant obstacles facing the city of Al-Abyar in dealing with th is issue including; limited documentation regarding generation, handling, management, and disposal of waste. In this paper, solid waste management status in the city of Al-Abyar has been investigated through an extensive survey carried out on selected p ublic and private comp anies. Solid waste management pract...

(Stef92 Technology, 2011-06-20, Cornelia Elena Tureac)
This paper aims to highlight the concerns about the waste management and at the same time highlighting its regional peculiarities. Municipal waste management methods in use today are related both to the waste that are being generated and collected, as well as waste that are generated and then collected . Collected waste are waste that are being generated and then collected by the sanita tion services. Waste uncollected is waste generated but not collected by sanitation services. The methods that are used, such as ...

(Stef92 Technology, 2011-06-20, Ștefan Dragomir)
In the context of sustainable development the problem of water pollution has a greatest importance due to the necessity of ensuring a clean environment for the next generation. Water quality standards provide the framework of accepted water parameters: chemical, physical, microbiological, biochemical, radiological. The European standards show the sampling method and terminology accep ted for that in according with macro- regional environmental conditions. In the present conditions, a good standard of life for peop...

(Stef92 Technology, 2011-06-20, Daniela Simina Ștefan)
Unsustainable consumption and production pa tterns in the developed world have an increased generation of waste over many decades. One of the major environmental challenge is the enormous amount of waste generated from leather and footwear industries. The leather and footwear industr ies are diverse manufacturing sectors which employ a wide variety of materials to make products ranging from different types and styles of clothes and footwear. Over 40 di fferent materials can be used but leather represents the most ...

(Stef92 Technology, 2011-06-20, Lucie Nezvalova)
The paper deals with the removal of chromium from aqueous solutions based on the process of biosorption. The select ed biosorbent is the fungus of Fomitopsis pinicola . The laboratory experiments study the kinetics of the biosorption process, the effects of grain-size, activating agents, length of th e activation process and physical conditions which play an important role in the process optimization. Among the factors that influence biosorption there are, particularly, the pH value, temperature, number of revolut...

(Stef92 Technology, 2011-06-20, Joao Pedro Martins da Silva)
Construction Sand production is done mostly by small mining companies and, because its price is distance dependent, it must be mined as near as possible to its final use, the cities, causing locational and environmental conflicts with economic and socio- environmental impacts. The Piranema Sand District is no exception. Located at 70 km from downtown Rio de Janeiro city, Brazil, its 70 small mining companies are the main suppliers of the Rio’s Metropolitan Area, w ith 90% of its demand: a critical success factor...

(Stef92 Technology, 2011-06-20, Ahmad Aryafar)
Quantitative risk assessment is a procedure fo r estimating the probability of an adverse health effect occurring in a local population from some events and the probability of the occurrence of the event. The risk analysis pr ocess consists of hazard identification, risk estimation, risk acceptability, risk evaluation and risk management. In this research, after extracting the risk assessment components; an algorithm has been drawn in order to analyse the risk assessment and to esta blish the framework for risk an...

(Stef92 Technology, 2011-06-20, Kamila Kasovska)
The northeaster part of the Czech Republic is since the early 19th century associated with underground coal mining. This activity brings economic benefit in addition to changes in the landscape – soil depression followed by habitat destruction. Flooded mine subsidences are an example of such degradation of native plant and animal communities, biodiversity dec line and wetland and aquatic ecosystems establishment. For a long time, these ecosystems were considered worthless and unproductive [10]. The aim of the va...

(Stef92 Technology, 2011-06-20, Sholpan Nazarkulova)
At present paper the results of chemical and radiochemical analysis of the environmental samples collected from the Shu river valley, are shown. The samples were collected along the Shu river from Tokmak town to Shu town during the field expedition, conducted in October, 2008, and in July, 2009. The main ions and uranium decay radionuclides in water increase up to maximum concentration in Tasotkel reservoir. The biogenic elements analysis showed their typical concentration for arid zone. The water contaminations w...

(Stef92 Technology, 2011-06-20, Eugenia Grecu)
The evaluation of the environmental policy it relies on the quantification processes of the expected and / or achieved, as well as of the report between the efforts and the effects achieved. If the evaluation of the effort s and / or of the effects is objectively or subjectively distorted, the ev aluation process becomes a me re formality, with negative consequences for all actors involved in policy. Thus, any successful monitoring requires prior specification of what must be a prog ram providing: deviations from ...

(Stef92 Technology, 2011-06-20, Elez Krasniqi)
The territory of Kosovo, in particular of Dukagjini through the valley of the Drini i BardhГ« River is under the influence of the modified Mediterranean climate. This influence climate has enabled the growth of Mediterranean and Sub Mediterranean plants which became part the species Ficus carica L. ( Fig). In the current research to Ficus carica L. ( Fig) in Kosovo was known only as cultivated plant. In this paper, we are presenting the species Ficus carica L. (Fig), which represent new naturalized-native plant sp...

(Stef92 Technology, 2011-06-20, Eva Lacková)
The article analyses the basic issues of procedural methods for evaluating the environment affected by the exploitation of mineral resources in the Czech Republic. The areas that were affected by the industr ial activities in the pa st and are not used currently are called Brownfields. These area s create the side effects called externalities from their very beginning. The first part e xplicates the basic views of the methods of assessment and evaluation of the environment and related negative and positive externa...

(Stef92 Technology, 2011-06-20, Mensur Kelmendi)
Kosova is rich with the na tural resources. These resources have been used for the gain of different metals. The process of metal gain is dated since 1927. Since then until in 2000 the technological gain process is followed with the pollution of environment creating the deposition of scrap. These depositio ns are located in outskirts of Mitrovica town in a distance of 1-4 km. In this zone we have a high presence of heavy metals in the air, water and earth. This waste of metals have a serious influence in the envir...

(Stef92 Technology, 2011-06-20, Seray Gokay Toksoz)
In the present circumstances, where environm ental problems are on the rise and occupy the agenda of the societies in the different ways, education is on the suggested solutions to these problems. The addition of the environment as subject to the educational programs, applications and processes is very important in every phase of awareness of the environment. The aim being such, nowadays countries include environment consciousness contents in their syllabus th e efforts of the new generations being informed about ...

(Stef92 Technology, 2011-06-20, Yury Fedorov)
The paper provides an analysis of long-term field studies in the Sea of Azov. The sea is rich in organic life and is characterized as one of the most bioproductive reservoirs in the world. During the periods of calm weathe r the stratification of water mass forms the fields of hypoxia in some areas of the sea. In the bottom layers of water pockets of hydrogen sulfide and elevated concentrations of methane and mercury are found. Mercury coming from both natural and anthropogenic sources is a priority pollutant for ...

(Stef92 Technology, 2011-06-20, Mihaela Sencovici)
The rural landscape is made up of agricultural landscape, completed by the land without an agricultural destination. It comprises three elements: the central area, the habitat made up of buildings related to the agri cultural exploitations, dwellings, artisan’s locations, deposits; rural lands that include both the uncultiv ated areas and the areas meant for different uses (agriculture, fore stry, pisciculture, t ourist and recreational purposes); the physical infrastructure (ways of communication). In this stud...

(Stef92 Technology, 2011-06-20, Eugenia Grecu)
The main difficulty in choosing a preferential location of a number of possible sites is the fact that the environm ental impact generated by eac h site can not be easily quantified. When choosing such a location it mu st also be taken into consideration to minimize risks to public health, minimize environmental impact, maximize service levels to users, and minimize the usage co sts. In the “Timisoara” case, placing a Landfill Site was a thorny issue that was resolved quite difficultly.

(Stef92 Technology, 2011-06-20, Lucian David)
From working in the field, sheep herding, washing laundry in the river's whirlpool, ritual singing in the young forest, traditional dancing of the village , all the way to the office job, dry cleaning, disco, hip-hop and neighbor-hood slang, took only a few centuries time. The peasants’ time was well di vided: preparing weather calendars in the winter, working the fields or taking the sheep flock up the mountain in the spring, gathering the harvest and celebrating in the fall. No missed occasion for him, who tak...

(Stef92 Technology, 2011-06-20, Annie Shoumkova)
The process of alkaline hydrothermal activation (with NaOH) of fly ash from Bulgarian coal-burning thermo-power plant “Maritsa 3” has been investigated by means of scanning electron microscopy and energy-dispe rsive X-Ray analyses. The stages of the zeolitization have been discusse d on the base of the obtained data for the morphology and composition of typical in dividual particles from th e zeolitized fly ash samples, synthesized at different trea tment duration. The influences of pre-treatment and post- tre...

(Stef92 Technology, 2011-06-20, Ibrahim Krasniqi)
This research will address the important pr oblem of waste management sector for the Municipality of Prishtina. Rapid urbani zation has made solid waste management a serious problem today. The perception of the people has always been that it is a responsibility of the local government bodies. Local authorities are bound to keep their area clean. For some time now, many municipa lities, city corporations and industries have been experimenting with several innov ative and participatory methods of Reduce, Reuse and R...

(Stef92 Technology, 2011-06-20, Stanislav Bartusek)
All wastes, as the products of human activity, necessarily enter matte r cycles in nature and ecosystems after certain time. They can damage the nature by their direct effects on biotic and abiotic ecosystems. Our contributio n discusses the risk properties of wastes and their influences on the environment with respect to the protec tion of public health. The hazard effects of wastes are demonstr ated using some cases of their direct exposition on organisms and other parts of the environment.

(Stef92 Technology, 2011-06-20, Dragoslav Stojić)
In this paper we analysed timber and timber based products as renewable materials that can be reused, recycled or used as ener gy source, with minimal waste. In civil engineering the main aspects of environment are: consumption of material and energy for constructing purposes, and emission of harmful materia into the environment during the life cycle of construction. Forest regene ration has certain significance in the system of sustainable development. Wood degradates easily which is an advantage considering the ...