Wszystkie pola: natural system - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Study of Adsorption Ability of Natural Materials of the Tyumen Region
Autorzy:: Pimneva, L.
Zagorskaya, A.
Powiązania:: https://bibliotekanauki.pl/articles/123127.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: natural sorbent
copper ions
adsorption isotherms
water supply system
drinking water quality
Opis:: The sorption of divalent copper, natural sorbents of kaolinite and montmorillonite clays and carbon sorbent was studied on model solutions under static conditions. Quantitative characteristics of sorption process of copper ions were obtained. The degree of extraction of copper ions from solution was investigated, depending on the concentration of the initial solution and the weight ratio of the sorbent and volume of treated solution. The magnitude of sorption increases along with the increase in the volume of copper sulfate solution with a concentration of 0.02 M at a constant sample of sorbents. A higher carbon sorption capacity of the sorbent, in relation to ions of copper, was compared to kaolinite and montmorillonite clay. A higher sorption capacity of the carbon sorbent with respect to copper ions is established in the comparison with kaolinite and montmorillonite clay.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 225-228
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: CFD Analysis of an Innovative Wind Tower Design with Wind-Inducing Natural Ventilation Technique for Arid Climatic Conditions
Autorzy:: Obeidat, Bushra
Kamal, Hammam
Almalkawi, Amal
Powiązania:: https://bibliotekanauki.pl/articles/1839069.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wind tower
computational fluid dynamics
natural ventilation
wind pressure fluctuation
indoor air quality
passive ventilation system
Opis:: Wind towers are passive architectural elements traditionally used to ventilate buildings in the Middle East’s hot and arid regions. Some recent design initiatives in Jordan are particularly interested in using passive systems for natural ventilation. This paper focuses on an innovative wind tower design as a passive ventilation system, which will be integrated into a train station design in Aqaba, Jordan to improve the air quality in indoor spaces and reduce the cooling loads. The design uses wind-induced effects as the motivating forces to improve natural ventilation. The study optimized the wind tower and evaluated its performance using Autodesk Computational Fluid Dynamics (CFD) simulations and Grasshopper Rhino plug-ins. Airflow and distribution through the tower were analyzed using the CFD model. Grasshopper definitions were used to examine the tower efficiency in lowering the indoor air temperature. Simulations indicated the potential of the proposed wind tower to reduce the temperature by 6.164°C and supply the interior space with the required fresh air rates. This article outlines how wind towers can be used in contemporary architecture and incorporate the simulation methods to pave the way for architects to effectively validate the performance of their design proposals at the early design stage.
Źródło:: Journal of Ecological Engineering; 2021, 22, 2; 86-97
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Comparison Environmental Conditions and Economic Efficiency Between Organic and Non-Organic Integrated Mangrove – Shrimp Farming Systems in Ca Mau Province, Vietnam
Autorzy:: Van Cong, Nguyen
Khanh, Huynh Cong
Powiązania:: https://bibliotekanauki.pl/articles/2086416.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: integrated mangrove-shrimp farming system
organic IMSF system
non-organic IMSF system
Natural certificate
Ca Mau province
Opis:: Mangrove forest protection is an essential solution for mitigating the impacts of natural disasters in coastal zones and climate change. Integrated mangrove-shrimp farming (IMSF) system has been promoted as a sustainable livelihood that can provide income for farmers and protect mangrove forests. However, the productivity of shrimp is limited. Therefore, to enhance the revenue for farmers, improving the value of shrimp products is a good option. Organic shrimp farming practices following the EU aquaculture organic standards have been previously applied in some areas of the Mekong delta. This study was conducted to compare technical, financial characteristics and environmental parameters between the applied (i.e., organic farms) and non-applied (i.e., non-organic farms) standards of Naturland, aiming to support the development of ecological shrimp farming and contribute towards green development. The study was carried out in Nhung Mien mangrove forest, Ngoc Hien district, Ca Mau province, Vietnam. Fifty organic farms and 50 non-organic farms were directly interviewed using structured questionnaires. And then, three farms in each system were selected for monitoring water quality. Results showed that the average mangrove coverage was 54.1% in the organic IMSF system and significantly different from the non-organic IMSF system (p<0.05). Total shrimp yield, total income and total profits tended to increase in organic IMSF system and the selling shrimp price increased by 10% compared to the conventional price. The study showed that following organic farming methods could provide higher income for farmers and a better chance to mitigate natural disasters and climate change impacts.
Źródło:: Journal of Ecological Engineering; 2022, 23, 5; 130--136
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Comparative Assessment of Environmental Effects by LCA Method of Natural Aggregates Extraction Processes and Production of Their Substitutes from Waste in the City Mining System
Autorzy:: Zegardło, Bartosz
Powiązania:: https://bibliotekanauki.pl/articles/1955518.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: aggregate substitute
ceramic waste
glass waste
environmental impact
life cycle assessment
Opis:: This paper is devoted to the topic of obtaining substitutes for natural aggregates in the city mining system. An article draws attention to the adverse effects of natural aggregate mining on the environment and presents its alternative based on processing waste mineral materials into aggregate form. Referring to the examples presented in the literature, technical possibilities of producing recycled aggregates from waste concrete, ceramic and glass materials were indicated. The system of collecting waste directly from potential users was also presented and the adaptation processes which waste must undergo were described. The research part of the study consisted of analyses of the environmental impact of the processes of obtaining natural aggregates and production of their substitutes from waste in the city mining system. The LCA (life cycle assessment) method was used to carry out the analyses. Using the available databases, calculations of the environmental impact of both processes were performed. The comparison of the obtained results proved that despite the unfavourable additional environmental effects caused by the adaptation processes required for waste, the environmental impact of the rational production of aggregates from recyclates is favourable, and such activities should be recommended for implementation in the industry.
Źródło:: Journal of Ecological Engineering; 2021, 22, 8; 251-257
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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