Author
Gregorio Martinez-Garcia
Bio: Gregorio Martinez-Garcia is an academic researcher from University of Sheffield. The author has contributed to research in topics: Wastewater & Chemical oxygen demand. The author has an hindex of 4, co-authored 4 publications receiving 162 citations.
Papers
More filters
TL;DR: In this paper, the addition of a co-substrate such as whey to the aerobic treatment pre-treatment of OMW by the yeast Candida tropicalis was studied.
68 citations
TL;DR: In this article, the metal ion adsorption was found to increase with the speed of agitation and at an optimum pH value of between 4 and 7, where the metal ions sequestered can be released in an acid solution until the concentration of these metal ions reaches a level where conventional methods can be used to provide economic metal recovery and potential revenue generation.
51 citations
TL;DR: The total mono-cyclic phenol reduction in OMW in this study was carried out by aerobic pre-treatment using the yeast Candida tropicalis in a 18 L batch reactor at 30 degrees C for 12 days followed by anaerobic co-digestion.
43 citations
TL;DR: In this paper, laboratory scale experiments were performed to determine the effectiveness of chemical treatment by the use of cationic polyacrylamide flocculant on raw olive mill effluent.
Abstract: The major water pollution problem facing the Mediterranean region is because of the olive mill wastewater (OMW), produced after the extraction of olive oil. Laboratory scale experiments were performed to determine the effectiveness of chemical treatment by the use of cationic polyacrylamide flocculant on raw olive mill effluent, coagulant aluminium sulphate(alum), precipitant calcium hydroxide (lime) blended with cationic polyacrylamide on aerobically treated whey or pig slurry coalesced with OMW. The results show that the chemical treatment is useful for colour reduction by 31.6-74.1%, COD reduction by 15.5-45%, total solids by 6-42%, phenolic compounds by 52.3% and lipids by 69.9%.
7 citations
Cited by
More filters
TL;DR: In this article, the authors highlight on the treatment approaches and valorization options for dealing with olive mill waste residues, predominantly those allowing for the recovery of valuable natural components such as phenolic compounds, dietary fibers, animal feed, biofuel, biogaz, enzymes, polymers and other.
470 citations
TL;DR: Aiming at the complicated composition of sludge and its treatment difficulty, the prospects and technical developments of coagulation/flocculation in sludge dewatering are discussed.
411 citations
TL;DR: A brief summary of sources of lignin, methods of depolymerization, biological pathways for conversion of the lign in monomers and the analytical tools necessary for characterizing and evaluating key lignIn attributes are given.
285 citations
TL;DR: In this article, the authors consider how biosorption of dyes onto cellulose-related materials has the potential to address the concerns of highly visible, sometimes toxic, and sometimes resistant to biological breakdown; thus it is important to minimize their release into aqueous environments.
Abstract: Dyes used in the coloration of textiles, paper, and other products are highly visible, sometimes toxic, and sometimes resistant to biological breakdown; thus it is important to minimize their release into aqueous environments. This review article considers how biosorption of dyes onto cellulose-related materials has the potential to address such concerns. Numerous publications have described how a variety of biomass-derived substrates can be used to absorb different classes of dyestuff from dilute aqueous solutions. Progress also has been achieved in understanding the thermodynamics, kinetics, and chemical factors that control the uptake of dyes. Important questions remain to be more fully investigated, such as those involving the full life-cycle of cellulosic substrates that are used for the collection of dyes. Also, more work needs to be done in order to establish whether biosorption should be implemented as a separate unit operation, or whether it ought to be integrated with other water treatment technologies, including the enzymatic breakdown of chromophores.
242 citations
TL;DR: The presented biosorption procedure was applied to the determination of analytes in tomato leaves, bovine liver, boiled wheat, canned fish, black tea, lichen and natural water samples.
238 citations