Anaerobic digestion of olive mill wastewaters in biofilm reactors packed with granular activated carbon and “Manville” silica beads

Low cost biosorbent “banana peel” for the removal of phenolic compounds from olive mill wastewater: Kinetic and equilibrium studies

“…Different doses (1-5 g) were tested at various pHs (2)(3)(4)(5)(6)(7)(8)(9)(10)(11). pH studies were conducted to determine the optimum pH at which maximum phenolic compounds removal could be achieved.…”

“…b is the equilibrium constant or Langmuir constant related to the affinity of binding sites (L/g) and Q m represents a particle limiting adsorption capacity when the surface is fully covered with phenolic compounds and assists in the comparison of adsorption performance. This equation has been successfully applied to many adsorption processes [7][8][9][10][11][12][13][14]. The Langmuir isotherm was developed on the assumption that the adsorption process will only take place at specific homogenous sites within the adsorbent surface with uniform distribution of energy level.…”

“…The most popular and widely used adsorbent material for treatment of OMW is activated carbon [11,12]. However, the relatively high initial cost and the need for a costly regeneration system make the activated carbon less economically viable as excellent adsorbent [13,14].…”

Enhancement of biogenic sulfide production in a packed‐bed bioreactor via critical inoculum design and carrier material selection

“…Like bone char, Celite TM R-635 was selected as a novel candidate material due to its previous use in a variety applications including bioscrubbers (Sorial et al, 1998;Wright, 2005) and wastewater treatment (Bertin et al, 2004;Durham et al, 1994;Kim et al, 2002;Peres et al, 1999). In this study the R-635 pellets immobilized the most biomass (0.245 g CDW) and exhibited other properties desirable in a carrier material.…”

Olive oil history, production and by-product management

“…Solely or combined with other methods (Konstas et al 1994;Andreozzi et al 1998;Sabbah et al 2004;Bertin et al 2004) it is increasingly being used to treat wastewaters, because it allows the recovery of an appreciable fraction of the chemical energy in the waste as methane and it produces much less waste sludge than aerobic processes (Dalis et al 1996;Erguder et al 2000). Due to its high organic content, OMW is suitable for anaerobic treatment, even if high purification efficiencies cannot be achieved (Dalis 1989;Dalis et al 1994;Beccari et al 1996).…”