Wyniki wyszukiwania - BazTech

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Bezściekowa technologia produkcji dodatków paszowych z mikroelementami na bazie makroalgi Pithophora varia Wille

Michalak I., Chojnacka K.

Przemysł Chemiczny

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2009

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T. 88, nr 5

512-515

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Zastosowanie alg w oczyszczaniu ścieków i w żywieniu zwierząt

Zielińska A., Michalak I., Chojnacka K.

Chemik

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2007

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Vol. 60, nr 11

534-543

PL

Celem niniejszej publikacji jest ocena możliwości zastosowania alg w oczyszczaniu ścieków i jako mineralnych dodatków paszowych, z wykorzystaniem naturalnych właściwości biosorpcyjnych mikro- i makroalg. Omówiono podstawy procesu biosorpcji, modele matematyczne opisujące kinetykę i statykę procesu oraz jego mechanizm. Właściwości biosorpcyjne alg porównano z innymi biosorbentami. Przeanalizowano również źródła pozyskiwania naturalnej biomasy alg do procesu biosorpcji. W głównej części publikacji przedyskutowano możliwości zastosowania alg w oczyszczaniu ścieków oraz wdrożone już rozwiązania procesowe, a także wykorzystanie alg w żywieniu człowieka i zwierząt. Omówiono skład mikro- i makroalg, przykłady ich zastosowania jako pokarmu dla człowieka oraz zwierząt.

EN

Algae, which are found in a variety of marine and freshwater environments, can be used in various branches of industry, because they are sources of wide range of natural products, that have biomedical, biotechnological, agricultural and industrial applications. Algae are known to be rich in lipids, proteins, vitamins, minerals and carotenoid pigments. They have already found practical applications in wastewater treatment, in the production of chemicals and as food and feed supplements for human and livestock. In the present paper, the application of alga. in wastewater treatment and in animal feeding is proposed, in which biosorption and bioaccumulation properties of both micro-and macroalge are used. Literature widely discusses using algae in wastewater treatment process. We propose a new application in the production of mineral feed additives for livestock. Algae enriched with microelements could supplement livestock diet with the recommended daily intake of some macroelements and essential trace elements. The main purpose of this paper was to show possibilities of commercial application, because there is a worldwide market for algae, chemicals and metabolites, including fatty acids, polysaccharides, organic food coloring agents, vitamins, and several other important chemical compounds, which are not available from other sources.

3

The application of macroalgae in animal feeding

Michalak I., Chojnacka K.

Polish Journal of Chemical Technology

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2006

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Vol. 8, nr 4

83-87

EN

Macroalgae are multicellular plants which are found in a variety of marine and freshwater environments. They can be used in various branches of industry because they contain iodine, alginic acid, vitamins, micro- and macroelements. In recent years, there has been an increasing interest in the application of macroalgae in animal feeding, due to their nutritional value. Algae are rich, particularly in proteins and unsaturated fatty acids. Moreover, some of them possess medicinal properties, especially in treatment of diseases of the digestive tract. Beside this, macroalgae are capable of accumulating high concentrations of minerals (Zn, Ni, Mo, I, Co, Cr) and also contain vitamins (B, C, D, E, K). Macroalgae can bind minerals in the process of biosorption and bioaccumulation. This property has been previously used in the wastewater treatment process. Macroalgae could be used as a food supplement to supplement the livestock diet with the recommended daily intake of some macroelements and trace elements. In the present paper, the possibility of the application of macroalgae as biological mineral supplements for livestock is discussed. The experiments of biosorption of Cr(III), Cu(II), Co(II) and Mn(II) by a macroalgae Cladophora glomerata were carried out. The mechanism of biosorption was identified as ion-exchange. The maximum metal uptake by the algae was evaluated. The influence of the pH on the efficiency of the process was investigated. The sorption equilibrium was described with the Langmuir equation.