Wszystkie pola: treatment process - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of Bakery Sewage Treatment Process Options Based on COD Fraction Changes
Autorzy:: Struk-Sokolowska, J.
Tkaczuk, J.
Powiązania:: https://bibliotekanauki.pl/articles/125274.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wastewater
municipal
bakery
food industry
COD fractions
activated sludge process
Opis:: Municipal WWTPs often receive industrial wastewater including the bakery sewage. The effluent of the bakery industry has a high biological oxygen demand (BOD). In addition to high BOD, this wastewater contains high chemical oxygen demand (COD), total Kjeldahl nitrogen (TKN) and is characterized by a dark color. The effect of bakery wastewater contribution on the COD fraction changes in the municipal sewage is presented in this paper. The study was conducted in July 2016 in a WWTP located in Lipsk, East-North Poland. The sewage receiver is the Biebrza River. The volume contribution of bakery wastewater is 10%. The analytical results were used to compute the percentage value contribution of individual COD fractions in wastewater. During the study, the following fractions were identified: S_S – COD of readily-biodegradable dissolved organic matter, S_I – COD of non-biodegradable dissolved organic matter, X_S – COD of slowly-biodegradable non-soluble organic matter, X_I – COD of non-biodegradable non-soluble organic matter. The method used for the COD fraction determination in wastewater was developed based on the ATV 131P guidelines (ATV-DVWK-A131P). The aim of the study was to determine the effect of bakery wastewater contribution on the COD fraction changes during the technical scale biological wastewater treatment with an activated-sludge process. The percentage contributions of individual COD fractions in wastewater were compared with the shares in the wastewater from other food industries (dairy, olive mill, tomato, sugar beet, potato processing, winery). In raw wastewater, the X_S fraction was dominant 44.2%. S_S fraction was 38.8%. In raw wastewater, the S_I, X_I fractions ranged from 2.3 to 14.8%. In the effluent the S_S fraction was not noted, which is indicative of microorganisms consumption. The WWTP effluents mostly (43.4%) contained slowly-biodegradable non-soluble organic matter (X_S). Non-biodegradable dissolved organic matter (S_I fraction) had a high share of 42.3%.
Źródło:: Journal of Ecological Engineering; 2018, 19, 4; 226-235
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Studies on the Efficiency of Grundwater Treatment Process With Adsorption on Activated Alumina
Autorzy:: Szatyłowicz, E.
Skoczko, I.
Powiązania:: https://bibliotekanauki.pl/articles/123695.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: activated alumina
water treatment
adsorption
popular pollutants
Opis:: One of inorganic sorbents used in water treatment technology is activated alumina. It is recommended by the European Commission to remove inorganic impurities, such as arsenic, fluoride, selenium and silicates. The adsorbent is usually applied in a granular form, under flow conditions. It can become absorbent material, increasingly used due to the presence of arsenic beside iron and manganese in groundwater intakes. The aim of the study was to evaluate the effectiveness of groundwater treatment in the technological system containing adsorption on activated alumina. The experiment was performed on test model CE 581 manufactured by G.U.N.T. Hamburg, in which four treatment stages can be extracted. The first stage is used in a gravel filter of grain size 1–2 mm, in the second sand filter of grain size 0.4–0.8 mm. The third and fourth phase includes two adsorbers. The first adsorber comprises activated alumina (Al,sub>2O₃) and the other comprises a granular activated carbon. The study was conducted at different speeds of filtration: 5, 10 and 15 m/h. In the raw water samples and the purified water samples after each treatment step the following parameters were determined: pH, O,sub>2 concentration, electrolytic conductivity, SO₄^2-, concentration, NO^3- concentration, PO₄^3- concentration, Cl^- concentration, color, turbidity, iron and manganese concentration, CODMn, total hardness, calcium hardness, magnesium hardness, content of dissolved substances. The conducted research indicates that optimum filtration rate for most pollution is 15 m/h. Moreover, the presence of activated alumina has contributed to increasing the efficiency of nitrate (V) and phosphate (V) ions removal.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 211-218
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Computer simulation of the genetic controller for the EB flue gas treatment process
Autorzy:: Moroz, Z.
Boużyk, J.
Sowiński, M.
Chmielewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/147569.pdf
Data publikacji:: 2001
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: genetic algorithm controller
flue gas
Opis:: The use of the computer genetic algorithm (GA) for driving a controller device for the industrial flue gas purification systems employing the electron beam irradiation, has been studied. As the mathematical model of the installation the properly trained artificial neural net (ANN) was used. Various cost functions and optimising strategies of the genetic code were tested. These computer simulations proved, that ANN + GA controller can be sufficiently precise and fast to be applied in real installations.
Źródło:: Nukleonika; 2001, 46, 3; 107-115
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Możliwe metody zarządzania procesem leczenia udaru mózgu
Possible methods of stroke treatment process management
Autorzy:: Korkosz-Gębska, Jolanta
Marciniak, Stanisław
Gębski, Jarosław
Powiązania:: https://bibliotekanauki.pl/articles/2011995.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:: metody zarządzania
lean management
udar mózgu
ochrona zdrowia
VSM
management methods
stroke
healthcare
Opis:: Celem artykułu jest identyfikacja możliwości usprawnienia procesu leczenia udaru mózgu z wykorzystaniem metod zarządzania i działań doskonalących na przykładzie procesu leczenia pacjentów z niedokrwiennym udarem mózgu. Opisano w nim również zależności między społecznymi i środowiskowymi aspektami funkcjonowania placówek ochrony zdrowia. Szczególną uwagę poświęcono metodom złożonym uwzględniającym sprzężenie zwrotne przez oddziaływanie otoczenia zewnętrznego na proces leczenia uwarunkowany czynnikami demograficznymi i środowiskowymi. W pracy wykorzystano wnioskowanie indukcyjne z zastosowaniem metody desk research oraz wywiadów i obserwacji nieuczestniczącej. Jako paradygmat dominujący przyjęto założenie o dążeniu do spełniania celów dla gospodarek państw rozwijających się uwzględniające spójność społeczną, ekonomiczną oraz ekologiczną.
The aim of the paper is to identify the possibilities of improving the stroke treatment process using management methods and taking the appropriate actions for improvement on the example of the treatment process of patients with ischemic stroke. It also describes the relationship between social and environmental aspects of the functioning of healthcare facilities. Particular attention was paid to complex methods which take into account feedback, such as the influence of the external environment on the treatment process, as conditioned by demographic and environmental factors. Inductive reasoning using the desk research method as well as non-participant interviews and observations were used in the work. As the dominant paradigm, the assumption was made to strive to meet goals for the economies of developing countries that consider social, economic and ecological cohesion.
Źródło:: Zeszyty Naukowe Politechniki Poznańskiej. Organizacja i Zarządzanie; 2020, 81; 93-107
0239-9415
Pojawia się w:: Zeszyty Naukowe Politechniki Poznańskiej. Organizacja i Zarządzanie
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Optimization of the heat treatment process of a steel porous charge using an integrated modelling
Autorzy:: Wyczółkowski, R.
Benduch, A.
Powiązania:: https://bibliotekanauki.pl/articles/102836.pdf
Data publikacji:: 2014
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: porous charge
heat treatment
integrated modelling
effective thermal conductivity
Opis:: The paper discusses the structure and principle of operation of programs for integrated modelling of the processes of heat treatment of porous-structure steel charges, such as long product bundles or strip or wire coils. Consideration is given to the specificity of these models in respect to porous charges. This is associated with their untypical thermal properties, which are expressed using the concept of effective thermal conductivity.
Źródło:: Advances in Science and Technology. Research Journal; 2014, 8, 24; 13-18
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Intensification of the Wastewater Treatment Process of a Bitumen Plant with the Production of Recycled Water
Autorzy:: Serikbayeva, Akmaral
Taizhanova, Lyailim
Suleimenova, Botagoz
Altybayeva, Zhansaule
Seidalieva, Leila
Powiązania:: https://bibliotekanauki.pl/articles/2202366.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wastewater treatment
bitumen
oil
plant
distillation
Opis:: The increasing demand for water with the industrialisation of the world is becoming a major problem as there is a water shortage all over the earth. Therefore, the water problem is one of the important problems that need to be effectively solved. This paper presents the results of research on wastewater treatment of bitumen production in the Mangystau region, which after physical and chemical treatment methods is sent to natural evaporation fields. As a result of research work, a method of wastewater treatment of bitumen plant was developed, which includes two stages: distillation of water on the solar plant and ozonation in order to oxidize volatile organic matter. Distillation to obtain primary treated water of 70–75% volume was carried out at 33–37 °C ambient temperature and 15–30 kPa rarefaction, at the same time COD of water was reduced by 68%.
Źródło:: Journal of Ecological Engineering; 2023, 24, 2; 295--301
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Artificial Neural Network to the Control of the Parameters of the Heat Treatment Process of Casting
Autorzy:: Wróbel, J.
Kulawik, A.
Bokota, A.
Powiązania:: https://bibliotekanauki.pl/articles/382692.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: heat treatment
moving heat source
artificial neural network
numerical modelling
control system
heating process
obróbka cieplna
źródło ciepła ruchome
sztuczna sieć neuronowa
modelowanie numeryczne
system sterowania
proces nagrzewania
Opis:: In the paper the use of the artificial neural network to the control of the work of heat treating equipment for the long axisymmetric steel elements with variable diameters is presented. It is assumed that the velocity of the heat source is modified in the process and is in real time updated according to the current diameter. The measurement of the diameter is performed at a constant distance from the heat source (Δz = 0). The main task of the model is control the assumed values of temperature at constant parameters of the heat source such as radius and power. Therefore the parameter of the process controlled by the artificial neural network is the velocity of the heat source. The input data of the network are the values of temperature and the radius of the heated element. The learning, testing and validation sets were determined by using the equation of steady heat transfer process with a convective term. To verify the possibilities of the presented algorithm, based on the solve of the unsteady heat conduction with finite element method, a numerical simulation is performed. The calculations confirm the effectiveness of use of the presented solution, in order to obtain for example the constant depth of the heat affected zone for the geometrically variable hardened axisymmetric objects.
Źródło:: Archives of Foundry Engineering; 2015, 15, 1; 119-124
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Rapid determination of lactic acid in anaerobic biological treatment process using a portable sensitive lactate biosensor
Autorzy:: Darwin, D.
Powiązania:: https://bibliotekanauki.pl/articles/80265.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: rapid determination
lactic acid
lactate concentration
lactate biosensor
anaerobic digestion
acidification
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2019, 100, 2
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Determination of stresses in the steel pipe during the superficial heat treatment process with helical path
Autorzy:: Kulawik, A.
Sczygiol, N.
Wróbel, J
Powiązania:: https://bibliotekanauki.pl/articles/123006.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: numerical analysis
superficial heat treatment
phase transformations in the solid state
stresses
steel pipe
analiza numeryczna
powierzchowna obróbka cieplna
przemiany fazowe w stanie stałym
naprężenia
rura stalowa
Opis:: In the paper a numerical model for the quench hardening process with the moving heat source of steel pipe made of medium carbon steel have been presented. The constant speed rotation and moving of the pipe was assumed to obtain the path of the heat source in the shape of the helical line. In this model the relationship occurring between thermal phenomena, phase transformation in the solid state and mechanical phenomena have been taken into account. The temperature and stress fields are determined using the copyright software based on the finite element method (three-dimensional tasks). To calculate the phase content in the solid state, the macroscopic model based on the analysis of the CTP diagrams is used. The range of the martensite transformations depends on the value of stresses. In the model the tempering phenomena is also taken into account. In the model of mechanical phenomena the elastic, thermal, structural, plastic strains and transformations plasticity are considered.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2016, 15, 1; 79-86
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Electron beam flue gas treatment process for purification of exhaust gases with high SO2 concentrations
Autorzy:: Chmielewski, A. G.
Licki, J.
Powiązania:: https://bibliotekanauki.pl/articles/146442.pdf
Data publikacji:: 2008
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: high sulphur fossil fuel
flue gas
electron accelerator
SO2 and NOx removal efficiency
absorbed dose
by-product
Opis:: Exhaust gases with high SO2 concentrations are emitted from combustion of high sulphur fossil fuels and from different industrial processes (e.g. copper smelter and sintering plants). The application of the electron beam process for SO2 and NOx removal from such flue gases was investigated. A parametric study was carried out to determine the SO2 and NOx removal efficiency as a function of temperature and humidity of irradiated gases, absorbed dose and ammonia stoichiometry. The efficiency 90–95% of SO2 removal was obtained in the optimal treatment conditions with an inlet SO2 concentration of up to 15% vol. The synergistic effect of high SO2 content on NOx removal was indicated. The collected by-product was a mixture of ammonium sulphate and nitrate. The content of heavy metals in the by- -products was many times lower than the values accepted for commercial fertilizers.
Źródło:: Nukleonika; 2008, 53, suppl. 2; 61-66
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "treatment process" wg kryterium: Wszystkie pola

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język