Showing papers in "Bioresource Technology in 1997"

TL;DR: In this paper, three lignocellulosic feedstocks (i.e., corn stover, poplar and switchgrass) were pretreated with dilute sulfuric acid (0.6, 0.9 and 1.2%) at relatively high temperatures (140, 160 and 180°C) in a Parr batch reactor.

TL;DR: The role played by various functional groups in the cell wall of Aspergillus niger in biosorption of lead, cadmium and copper was investigated in this paper, where the biomass was subjected to chemical treatments to modify the functional groups, carboxyl, amino and phosphate.

TL;DR: The potential of using these microalgae to reduce the environmental pollution of heavily contaminated agroindustrial waters currently disposed of untreated into the waterways and streams of tropical Colombia is shown.

TL;DR: In this paper, the authors used an electrochemical method using TiPt as anode and Stainless Steel 304 as cathode to treat Olive Oil Washing (OOW), a toxic liquid associated with the production of olive oil.

TL;DR: The performance of an anaerobic digestion fed with waste activated sludge (WAS) pretreated with NaOH was examined in this article, where the sludge was periodically collected from a municipal wastewater-treatment plant.

TL;DR: Various uses of this multipurpose plant are reviewed and it is found that carotenoid pigments from Tagetes are useful in food coloring.

TL;DR: In this paper, the initial steps in the process: pretreatment of rice straw and enzymatic hydrolysis of the polysaccharides in the pretreated material to soluble sugars were examined.

TL;DR: In this article, the binding capacity of the quaternized rice husk was examined by treating it with various concentrations of NaOH solution, and it was shown that no dissolution of the sorbent occurred, even in 1 M Naoh solution.

TL;DR: In this paper, a case-study of a plant located in a country in the Piedmont of Virginia is described, where 20 producers having four to seven storage locations each.

TL;DR: In this paper, the feasibility of anaerobic treatment of slaughterhouse wastewaters in a UASB (Upflow Anaerobic Sludge Blanket) reactor and in an AF (Anaerobic Filter) was evaluated.

TL;DR: The growth of a range of pure and mixed cultures was examined using vegetable oils, lard and 'grease' from a fast-food restaurant grease-trap, with Acinetobacter was the most effective of the pure cultures, typically removing 60–65% of the fatty material whose initial concentration had been 8 g/l.

TL;DR: The feasibility of using treated oil palm empty fruit bunch (OPEFB) fibre as a substrate for cellulase production by Chaetomium globosum Kunze was studied and the production of all three major components of cellulase using pretreated OPEFB fibre were about three times higher than those obtained in fermentations using pure cellulose.

TL;DR: This paper showed that the reactivity of the crude acetosolv lignin with formaldehyde to a relatively high level of formaldehyde consumption in the methylolation reaction, and supported comparison of pre- and post-methylolation 1H and 13C NMR spectra.

TL;DR: In this paper, the anaerobic biodegradability of lipids in the form of a milk-fat emulsion was evaluated using a closed circuit, expanded granular sludge bed (EGSB) reactor.

TL;DR: The highest level of volumetric productivity of FPase occurred in the cell-free supernatants of C. biazotea during growth on α-cellulose followed by Leptochloa fusca (kallar grass), while that of endo-β-glucanase occurred on k allar grass followed by α- cellulose.

TL;DR: In this paper, a preliminary investigation was performed to assess the conversion of the cellulosic component of municipal primary wastewater solids to ethanol, which corresponded to overall conversion efficiencies of cellulose to ethanol in the range of 17-60% based on theoretical values.

TL;DR: In this article, a bioconversion of agro-residues, rice straw and wheat straw, was carried out with the edible mushroom Pleurotus sajor-caju, with a view to increasing nutritive values and digestibilities for animal feed.

TL;DR: It is suggested that turning every 4 days be the practical turning frequency for composting of spent litter, as this turning frequency will help eliminate the phytotoxins in the spent litter much faster than turning every 7 days.

TL;DR: Bioassay studies of the laboratory-colonised larvae (LCL) and field-collected larvae (FCL) of Culex quinquefasciatus with Jive different concentrations of 12 different plant extracts showed that the extracts of Argemone mexicana, Jatropha curcus, Pergularia extensa and Withania somnifera had acute toxicity.

TL;DR: In this paper, a soil sampled in the south of Italy (Matera), seeded with Avena sativa was used in experiments on: (1) direct incorporation of vermicompost into the soil (VC treatment) and (2) fertirrigation with sewage waters mixed with humic substances extracted from vermiccompost (IH treatment).

TL;DR: In this paper, the performance of a pilot-scale upflow sludge blanket (UASB) reactor treating municipal sewage without any supplementary heating was examined in a 200-day trial.

TL;DR: In this article, the authors compared the effectiveness of two abatement compounds, clinoptilolite and De-Odorase®, when used in broiler production and found no statistically significant reduction in odour concentration or odour emission rate for either of the additives used.

TL;DR: The specific productivity and weight yield of xylitol from anion exchange resin-treated hydrolysate were comparable to that from an ammonia-treated sample, and neutralized hemicellulose Hydrolysate obtained without prior ammonia treatment required anions exchange resin treatment to be fermented by yeasts.

TL;DR: In this paper, the start-up of a UASB-reactor treating high-strength (up to 77 g COD/l) cheese-whey wastewaters as well as the treatment efficiencies and the maximal admissible organic loading rates (OLR) have been investigated under mesophilic and submesophilic (20-30°C) conditions.

TL;DR: In this article, a sequential extraction procedure was employed to determine the soil fractions, and assess plant availability of Cr, Cu, Ni, Pb and Zn in a Glynwood silt loam amended with five rates (0, 30, 60, 120 and 240 metric tons/ha) of composted municipal solid waste (CMSW) or composted sewage sludge (CSS).

TL;DR: In this article, the ability of microorganisms to carry out dye decolorization has received much attention, as indicated by the multitude of related research reports, however, few of these techniques have been accepted by the textile industries.

TL;DR: In this paper, the effects of bulking agents on the active stage of fish waste composting were examined in a full-scale fish waste composting facility, and the results indicated that ammonia management during the composting process could be easily accomplished by the use of suitable amendments or bulking agent.

TL;DR: In this paper, the effects of Trametes versicolor of molasses wastewater from an alcoholic fermentation factory was studied. Tests varying the concentrations of carbon source, nutrients, initial pH and mycelia were carried out in order to analyze their influence on the percentage decolorization, COD removal and decrease of ammonium content of the wastewater.

TL;DR: In this article, three cellulases, one hemicellulase and three pectinases were used, separately or in binary and ternary combinations, to hydrolyze dried beet-pulp, a byproduct of the sugar industry.

TL;DR: This work was an approach to waste date products valorization through biomass production with the yeast Saccharomyces cerevisiae by substituting date-coat (fleshy part) sugar extract, date-seed hydrolysate, and ammonium nitrate for semi-synthetic fermentation medium.