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Wyświetlanie 1-5 z 5
Tytuł:
Life Cycle Assessment (LCA) of the integrated technology for the phosphorus recovery from sewage sludge ash (SSA) and fertilizers production
Autorzy:
Smol, Marzena
Kulczycka, Joanna
Lelek, Łukasz
Gorazda, Katarzyna
Wzorek, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/204770.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
waste management
life cycle assessment
LCA
sewage sludge ash
SSA
phosphorus recovery
circular economy
CE
fertilizers
Opis:
The paper presents an application of Life Cycle Assessment (LCA) method for the environmental evaluation of the technologies for the fertilizers production. LCA has been used because it enables the most comprehensive identification, documentation and quantification of the potential impacts on the environment and the evaluation and comparison of all significant environmental aspects. The main objective of the study was to assess and compare two technologies for the production of phosphorus (P) fertilizers coming from primary and secondary sources. In order to calculate the potential environmental impact the IMPACT 2002+ method was used. The first part of the LCA included an inventory of all the materials used and emissions released by the system under investigation. In the following step, the inventory data were analyzed and aggregated in order to calculate one index representing the total environmental burden. In the scenario 1, fertilizers were produced with use of an integrated technology for the phosphorus recovery from sewage sludge ash (SSA) and P fertilizer production. Samples of SSA collected from two Polish mono-incineration plants were evaluated (Scenario 1a and Scenario 1b). In the scenario 2, P-based fertilizer (reference fertilizer – triple superphosphate) was produced from primary sources – phosphate rock. The results of the LCA showed that both processes contribute to a potential environmental impact. The overall results showed that the production process of P-based fertilizer affects the environment primarily through the use of the P raw materials. The specific results showed that the highest impact on the environment was obtained for the Scenario 2 (1.94899 Pt). Scenario 1a and 1b showed the environmental benefits associated with the avoiding of SSA storage and its emissions, reaching -1.3475 Pt and -3.82062 Pt, respectively. Comparing results of LCA of P-based fertilizer production from different waste streams, it was indicated that the better environmental performance was achieved in the scenario 1b, in which SSA had the higher content of P (52.5%) in the precipitate. In this case the lower amount of the energy and materials, including phosphoric acid, was needed for the production of fertilizer, calculated as 1 Mg P2O5. The results of the LCA may play a strategic role for the decision-makers in the aspect of searching and selection of the production and recovery technologies. By the environmental evaluation of different alternatives of P-based fertilizers it is possible to recognize and implement the most sustainable solutions.
Źródło:
Archives of Environmental Protection; 2020, 46, 2; 42-52
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Możliwości zastosowania odpadów po termicznym przekształceniu osadów ściekowych w materiałach budowlanych
THE POSSIBLE APPLICATIONS OF WASTE AFTER THERMAL TREATMENT OF SEWAGE SLUDGE IN BUILDING MATERIALS
Autorzy:
Smol, Marzena
Kulczycka, Joanna
Henclik, Anna
Gorazda, Katarzyna
Wzorek, Zbigniew
Powiązania:
https://bibliotekanauki.pl/chapters/2231429.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
osady ściekowe
utylizacja termiczna
popioły lotne
zagospodarowanie odpadów
materiały budowlane
Opis:
W pracy przedstawiono analizę możliwości zagospodarowania odpadów po termicznym przekształceniu osadów ściekowych w materiałach budowlanych. Taki sposób zagospodarowania popiołów ze spalania osadów ściekowych jest zgodny z założeniami programu „zero odpadów dla Europy” w którym podkreśla się że trwały wzrost gospodarczy jest możliwy poprzez przechodzenie na gospodarkę o bardziej zamkniętym obiegu. Wśród najważniejszych zastosowań popiołów w budownictwie wyróżniono stosowanie popiołu jako składnik mieszaniny surowcowej do produkcji cementu, aktywny dodatek do cementowych spoiw nieorganicznych (betonów i zapraw), składnik nadmiaru surowcowego do produkcji ceramiki budowlanej (cegieł i płytek ceramicznych), składnik spiekanego kruszywa lekkiego oraz substytut piasku i/lub cementu w konstrukcjach drogowych (stabilizowanych podłożach cementowych i nasypach drogowych). W pracy opisano możliwości stosowania popiołów do celów budowlanych, z uwzględnieniem spełnienia zarówno kryteriów technicznych, jak i środowiskowych.
The paper presents an analysis of the possible applications of waste after thermal treatment of sewage sludge in building materials. This method of incinerated sewage sludge ash (ISSA) management is consistent with the objectives of ‘A zero waste programme for Europe‘, which assumes that sustainable economic growth is possible by moving towards a more circular economy (CE). The most important applications of fly ash in construction industry is the use of ash as a component of a mixture of raw materials for cement production, active additive for cementitious inorganic binder (concrete and mortar), bearing component of the raw material in the manufacture of building ceramics (bricks, ceramic tiles), a component of lightweight aggregate and sand and/or cement substitute in the road constuctions (cement stabilized bases, subbases and embankments). This paper describes the possibility of using fly ash for construction purposes, including to meet both the technical and the environmental criteria.
Źródło:
Interdyscyplinarne zagadnienia w inżynierii i ochronie środowiska 6; 342-355
9788374938976
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biogenic catalysis in sulphide minerals weathering processes and acid mine drainage genesis
Autorzy:
Kušnierová, Mária
Praščáková, Mária
Nowak, Anna
Gorazda, Katarzyna
Wzorek, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/1039326.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
sulphide minerals
weathering
acid mine drainage
biotransformation
Acidithiobacillus ferrooxidans
Opis:
Bioleaching and biogenesis are the main outputs from a large group of environmental processes participating in the natural material cycle, used in raw materials processing. Bio-oxidation reactions are the main basis for bioleaching procedures, often participating in parallel leaching processes. During the leaching processes of polycomponent sulphide substrates, the factor of process selection also plays an important role, being in direct relation to the electric properties and galvanic effect occurring between the individual components of the leaching substrate. This work gives a summary of the results of a research focused on the possibilities of using biotechnological procedures for treatment of Slovak sulphide ores. The object of the research is extraction of valuable metals, undesirable admixtures and degradation of crystal lattice of sulphides for subsequent chemical leaching processing of precious metals. The results of experiments on the existence of biogenic processes in situ on waste dumps from exploitation containing residual sulphides are also presented. The processes result in acid mine drainage water generation. These waters are strongly mineralised (over 48 g/L) and of low pH; that is why they are very caustic. The arsenic content (2.558 mg/L) in outflowing waters from old mines is high and over the limits set by the law.
Źródło:
Acta Biochimica Polonica; 2014, 61, 1; 33-39
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phosphorus cycle - possibilities for its rebuilding
Autorzy:
Gorazda, Katarzyna
Wzorek, Zbigniew
Tarko, Barbara
Nowak, Anna
Kulczycka, Joanna
Henclik, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1039475.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
phosphorus cycle
phosphorus recovery
sewage sludge ash
acidic extraction of phosphorus
sewage sludge incineration
Opis:
The rebuilding of the phosphorus cycle can be performed with the use of both biotechnology and chemical technology. This paper presents a review of the phosphorus cycle and the different approaches that can be taken to the recovery of phosphorus from phosphate-rich waste. Critical issues in the phosphorus cycle are also discussed. Methods for the recovery of phosphorus form sewage sludge ash are widely explored and divided into two groups: wet extraction methods and thermochemical methods. Laboratory-scale methods are described, as well as proposed industrial technologies, with particular regard to the possibilities for their implementation in Poland. Phosphorus recovery methods from SSA (sewage sludge ash) in our country seems to be promising due to the increasing number of sewage sludge incineration plants, which could easily supply ash to future recovery installations. For the effective recovery of P from sewage sludge ash, it is essential to make the right choice in determining the appropriate method to use with respect to the particular properties of the ash composition available. A patented method of phosphorus recovery by acid extraction methods, developed by Cracow University of Technology, results in an efficiency of 80-96% for phosphorus recovery. 3000 to 4000 tons of phosphorus per year can be recycled and introduced back into the environment, that covers around 7% of the total amount of phosphorus ore imported into Poland between 2008 and 2009.
Źródło:
Acta Biochimica Polonica; 2013, 60, 4; 725-730
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Suspension fertilizers based on alternative raw materials : the key to sustainability and closed nutrient cycles
Autorzy:
Gorazda, Katarzyna
Kominko, Halyna
Nowak, Anna K.
Wiśniak, Adam
Powiązania:
https://bibliotekanauki.pl/articles/27311568.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
circular economy
alternative raw materials
suspensions
waste
fertilizer
nutrients recovery
Opis:
The rapid, high increase in production costs and prices of mineral fertilizers leads to a reduction in their use by farmers, while fertilizer manufacturers consider the use of alternative raw materials and reducing the energy consumption of fertilizer production processes. Given these circumstances, special attention is warranted for suspension fertilizers. The manufacturing of suspension fertilizers is simplified and less energy intensive in comparison with solid fertilizers. This is achieved by omitting certain production stages such as granulation, drying, sifting, which usually contribute to more than half of the production costs. This paper presents the production procedure of suspension fertilizers tailored for cabbage cultivation, utilizing alternative raw materials such as sewage sludge ash and poultry litter ash. The final products are thoroughly characterized. The obtained fertilizers were rich in main nutrients (ranging from 23.38% to 30.60% NPK) as along with secondary nutrients and micronutrients. Moreover, they adhere to the stipulated standards concerning heavy metal content as outlined in the European Fertilizer Regulation. A distribution analysis has showed that suspension fertilizers contain nutrients in both liquid and solid phases. This arrangement facilitates their easy availability for plants and subsequent release upon dissolution in soil conditions. To assess process consistency, the production of the most promising fertilizer was upscaled. A preliminary technological and economic analysis was also conducted. The method of producing suspension fertilizers using alternative raw materials is a simple waste management solution offering nutrient recycling with the principles of circular economy. This approach not only encourages nutrient recycling but also curtails reliance on imported raw materials.
Źródło:
Archives of Environmental Protection; 2023, 49, 3; 38--49
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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