Purification of sugar beet vinasse – Adsorption of polyphenolic and dark colored compounds on different commercial activated carbons

THE SPERMICIDE GELS FORMULATION FROM THE DURIAN’S (DuriozibethinusMurr.) CORTEX EXTRACT: THE DECOLOURIZATION AND SOLID DISPERSION

“…Activated carbon adsorbed the dark-colored compound [12]. The result of the current study agrees with another study that powdered activated carbon is more suitable for color adsorption [13].…”

Recovery, concentration and purification of phenolic compounds by adsorption: A review

“…At acidic pH, the uptake of phenolics by different adsorbents is enhanced because the phenols are undissociated and the dispersion interactions predominate (Grant and King, 1990;Dargaville et al, 1996;Dabrowski et al, 2005;Mohanty et al, 2005;Mohan and Karthikeyan, 1997;García-Araya et al, 2003;Ugurlu et al, 2005;Caqueret et al, 2008). Hydrogen may plays an important role (Chanda et al, 1983;Grohmann et al, 1999;Ku and Lee, 2000;Ku et al, 2004;Kammerer et al, 2010a;Navarro et al, 2008a;Saleh et al, 2008;Bretag et al, 2009a;Bretag et al, 2009b;Zhang et al, 2009b;Liu et al, 2010a;Liu et al, 2010b;Pompeu et al, 2010).…”

“…Anaerobic digestion may be completed with biological, electrochemical and physico-chemical methods (Satyawali and Balakrishnan, 2008). Adsorption on ACs (Caqueret et al, 2008;Figaro et al, 2009), macroporous resins , chitosan (Satyawali and Balakrishnan, 2008) and fly ash (Krishna Prasad and Srivastava, 2009) of phenolic and coloured compounds from effluents of sugar factories and alcohol distilleries was proposed. Commercial ACs efficiently removed phenolic compounds from the liquid imbibing distilled grape pomace (Soto et al, 2008).…”

“…The sequential recovery of compounds by sequential adsorption onto different types of resins and ACs has been proposed for separate deacidification, debittering and recovery of phenolic compounds (Grohmann et al, 1999;Manthey, 2004;Scordino et al, 2005 andScordino et al, 2007), or for avoiding damage of ionexchangers from the irreversible adsorption of phenolics (Caqueret et al, 2008).…”

Colour removal from beet molasses by ultrafiltration with activated charcoal

“…The pH is one of the main factors that affect the activated charcoal adsorption capacity due to the modification of its charge and the ionization equilibrium of many organic compounds dissolved in the feed aqueous molasses [14,23]. Preliminary equilibrium experiments were performed to select the most suitable activated charcoal and to determine the influence of pH on its colour adsorption capacity.…”