Wszystkie pola: composition changes - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Dynamics of Changes in Microbiological Composition of Stored Sediments
Autorzy:: Sałata, A.
Stoińska, R.
Dąbek, L.
Powiązania:: https://bibliotekanauki.pl/articles/125293.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sediments
stormwater treatment plant
microbiological analysis
Opis:: The composition of the sediments formed in the process of stormwater pretreatment is diversified and depends on many parameters, mainly on the quality of stormwater and the land use of the catchment. The stormwater sediments are characterized by heterogeneous chemical and microbiological composition. The aim of this paper was the microbiological evaluation of the sediments from four stormwater catchments in terms of hazard to humans and the environment. The pH, and the content of organic and mineral matter were determined for the examined sediments. The microbiological analysis included the determination of the total number of psychrophilic, mesophilic, and coliform bacteria, including E. coli, and also the number of faecal Enterococci, Salmonella and Shigella. The study was conducted for fresh deposits and those stored for one year in order to determine the dynamics of changes in their biological activity.
Źródło:: Journal of Ecological Engineering; 2018, 19, 6; 241-246
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Simulations of the influence of changes in waste composition on their energetic properties
Autorzy:: Marczak, H.
Powiązania:: https://bibliotekanauki.pl/articles/125099.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: waste management municipal waste
recycling
calorific value of waste
Opis:: The objective to obtain the recommended (at least 50% by weight) level of recycled and reprocessed raw fractions of municipal waste in the perspective of 2020 might in turn contribute to the deterioration of the fuel properties of waste stream that is intended for incineration. In order to avoid oversizing heat recovery plants their con-struction should be based on well-defined properties of the waste fuel. The author carried out simulation calculations of the impact of changes in the composition of municipal waste on their energetic properties. The calculations of the calorific value of the waste fraction (so called combustible fraction) with the potential to be used as an alternative fuel were done.
Źródło:: Journal of Ecological Engineering; 2014, 15, 4; 90-97
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Changes in the Microbial Composition of Municipal Wastewater Treated in Biological Processes
Autorzy:: Bawiec, A.
Pawęska, K.
Jarząb, A.
Powiązania:: https://bibliotekanauki.pl/articles/125067.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: municipal wastewater
microbial composition
wastewater treatment
Opis:: Municipal wastewater is characterized by diverse microbial content, largely dependent on their sources as well as many other factors like condition and health of their producer, but also environmental factors. The number and share of individual bacterial population in wastewater is changing during the process of their treatment in wastewater treatment plants. The microbial content of treated wastewater is significantly affected by the type of technology used for wastewater treatment. The paper presents the results of the species composition of bacteria present in the wastewater at various stages of treatment for the two different technologies. Samples of wastewater from hydroponic wastewater treatment plant and from the plant whose technology is based on biofilters were analysed. A key mechanism for wastewater treatment in both cases is biological treatment, using microbial activity that decomposes pollutants in the wastewater, which significantly contributes to changes in the species composition of bacteria comparing to microbiological composition of sewage flowing into the treatment plant. Analyses of microbial composition showed that in the objects consisting of preliminary tank and biofilter, composition of bacteria species is changing, but many species isolated from raw sewage is also found in treated wastewater. In the plant with hydroponic lagoon after wastewater treatment throughout the process system, bacteria present in raw sewage or in wastewater after biological treatment were not identified in the outlet.
Źródło:: Journal of Ecological Engineering; 2016, 17, 3; 41-46
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The Effect of Using Effective Microorganisms on the Changes in the Chemical Composition of Spring Wheat
Autorzy:: Piotrowska, Anna
Boruszko, Dariusz
Powiązania:: https://bibliotekanauki.pl/articles/2105286.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: effective microorganisms
macronutrients
micronutrients
wheat
Opis:: The world’s noticeable population growth is associated with an increased demand for agricultural products. The search for new solutions to increase crop productivity while ensuring environmental stability is becoming a key role. One such method is the use of the biopreparations containing Effective Microorganisms. EM consist of about 80 species of selected aerobic and anaerobic microorganisms, which have the ability to restore the biological balance. Professor Teruo Higa of Ryukyus University in Okinawa is the creator of Effective Microorganisms. When added to agricultural ecosystems they stimulate plant growth, improve the condition of soils affected by excessive use of chemical fertilizers allowing insoluble forms of elements to be transformed into plant-available forms and protect them from certain diseases and pests. This solution is an ecological alternative to conventional technologies and does not further pollute the ecosystem, which is crucial. Organic fertilizers in the form of EMs are made using live microorganisms they do not only deliver nutrients to the soil but also allow inactive ones to become available. With improved nutrient uptake and protection from soil pathogens, plants develop and grow better for improved yields. They contain organic matter and one or more biologically active organic compounds (amino acids, vitamins) as well as macroand microelements that stimulate plant growth and development. They provide plants with essential substances, which are naturally synthesized in many complex biochemical processes, causing energy savings that can be used for other transformations in the plant.
Źródło:: Journal of Ecological Engineering; 2022, 23, 6; 50--57
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Initial Assessment of Changes in Water Quality in the Wrocław City Moat Reservoirs
Autorzy:: Kilian, Szymon
Pawęska, Katarzyna
Bawiec, Aleksandra
Powiązania:: https://bibliotekanauki.pl/articles/2173254.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: urban water reservoir
physicochemical composition of water
ammonium nitrogen
total phosphorus
city moat
Opis:: The aim of the research was to initially assess the changes in the physicochemical composition of water in the reservoirs of the city moat (Wrocław) in the context of the analysis of the type of pollutants flowing into the inner-city water reservoirs and in relation to the impact of air quality directly in the vicinity of the reservoirs. As an element of the urban landscape, the inner-city water reservoirs play an important role in improving the local climatic conditions, increasing the biodiversity of the landscape, and eliminating the negative impact of urban heat islands. The measurement campaign was conducted for 11 months. The following parameters were determined in the analyzed water samples: turbidity, pH, electrolytic conductivity, as well as concentrations of nitrogen forms (ammonium nitrogen, nitrite nitrogen, and nitrate nitrogen), total phosphorus and sulfates. Additionally, the air quality parameters in the direct location of the reservoirs were analyzed, including: concentrations of nitrogen oxides, nitrogen dioxide, sulfur dioxide, humidity level and selected meteorological data, i.e. daily precipitation and average daily air temperature. The average concentrations of nitrogenous forms in the waters of the downtown water reservoir were as follows: ammonium nitrogen 0.155 mg•dm-3, nitrite nitrogen 0.084 mg•dm-3, and nitrate nitrogen 1.15 mg•dm-3. The sulfate concentrations showed greater variability 67.805–180.973 mg•dm-3. On the basis of the conducted observations and analyses, a statistically significant relationship was found between the quality parameters of water in municipal water reservoirs and external factors such as air quality, and in particular the correlation of air humidity with the concentration of nitrite and nitrate ions in the water. The conducted research confirms the influence of air quality on the levels of pollutants in the waters collected in the urban water reservoir.
Źródło:: Journal of Ecological Engineering; 2022, 23, 7; 58--66
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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