Temat: advanced production - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Advanced planning system in small business
Autorzy:: Bubeník, P.
Powiązania:: https://bibliotekanauki.pl/articles/117759.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Promocji Wiedzy
Tematy:: advanced planning system
scheduling
production of planning
shop floor scheduling
Opis:: Achieving dramatic improvements in productivity, customer satisfaction and profitability result from applying the latest advances in planning and control systems. The paper presents application result of advanced production planning on the small business.
Źródło:: Applied Computer Science; 2011, 7, 2; 21-26
1895-3735
Pojawia się w:: Applied Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Study of catalytic processes for biodiesel production wastewater treatment
Autorzy:: Borralho, Teresa
Coelho, Solange
Estrelo, Andreia
Powiązania:: https://bibliotekanauki.pl/articles/205024.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: cobalt
chemical oxygen demand
Fenton process
biodiesel production wastewater
catalytic advanced oxidation process
potassium monopersulphate
Opis:: The study of the possibility of removing organic compounds from wastewater originating from the biodiesel purification stage by two catalytic processes, HSO₅^-/transition metal and Fenton method has been presented. The source of the ion HSO₅^-is potassium monopersulphate (2KHSO₅∙KHSO₄∙K₅SO₄) (Oxone) that may be decomposed into radicals (OH., SO₄^-., SO₅^-.) by means of transition metal as Co(II). Different concentrations were used for both compounds and the combination ([Co²⁺] = 1.00μM/[HSO₅^-] = 5.00·10^-2 M) achieved the highest COD removal (60%) and complete decomposition of the oxidant was verified for contact times of 45 min. This process has some advantages comparing to the conventional Fenton method such as the absence of the costly pH adjustment and the Fe(III) hydroxide sludge which characterize this treatment process. The Fenton process showed that the combination of [H₂O₂] = 2.00M/[Fe²⁺] = 0.70 M was the best and archived COD removal of 80%. The treatments studied in this research have achieved high COD removal, but the wastewater from the biodiesel purification stage presents very high parametric values of Chemical Oxygen Demand (667,000 mgO₂/L), so the final COD concentration reached is still above the emission limit of discharge in surface water, according the Portuguese Law (Decree-Law 236/98). However, both treatments have proved to be feasible techniques for the pre-oxidation of the wastewater under study and can be considered as a suitable pre-treatment for this type of wastewaters. A rough economic analysis of both processes was, also, made.
Źródło:: Archives of Environmental Protection; 2019, 45, 2; 66-72
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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