Showing papers in "Bioresource Technology in 2007"

TL;DR: The purpose of this paper is to review the available information on various attributes of utilization of microbial and plant derived biomass and explores the possibility of exploiting them for heavy metal remediation.

TL;DR: This paper provides a critical review on the current technologies available for decolourisation of textile wastewaters and it suggests effective and economically attractive alternatives.

TL;DR: The key role that process design plays during the development of cost-effective technologies is recognized through the analysis of major trends in process synthesis, modeling, simulation and optimization related to ethanol production.

TL;DR: It is indicated that lignin is relatively non-reactive and probably the component of lignocellulosic precursors primarily responsible for the microporosity of activated carbons.

TL;DR: Both structural and thermal characteristics suggest that kraft pine lignin (L1) would be a better phenol (P) substitute in the synthesis of lign in-phenol-formaldehyde (LPF) resins, as it presents higher amounts of activated free ring positions, higher MW and higher thermal decomposition temperature.

TL;DR: The results of this study indicate that the food waste is a highly desirable substrate for anaerobic digesters with regards to its high biodegradability and methane yield.

TL;DR: Kinetic study showed that the adsorption of dye on coir pith carbon was a gradual process and pH effect and desorption studies suggest that chemisorption might be the major mode of the Adsorption process.

TL;DR: The batch adsorption rate for the five systems indicated that the adsorptive mechanism was predominantly intraparticle diffusion but there was also a dependence on pore size as the dye diffuses through macropore, mesopore and micropore respectively.

TL;DR: Quadratic models using time, temperature, and concentration as continuous variables were developed to predict xylan and lignin reduction, respectively for sulfuric acid and sodium hydroxide pretreatments, and explained most of the variation in xylan or lign in reduction through simple linear regressions.

TL;DR: Addition of a reactive phenol, 2-naphthol, was shown to inhibit the repolymerization reaction strongly, resulting in a highly improved delignification by subsequent solvent extraction and an extracted lignin of uniform structure.

TL;DR: Results suggested an optimum C/N ratio for co-digestion of algal sludge and waste paper was in the range of 20-25/1.

TL;DR: Waste cooking oils, restaurant grease and animal fats are potential feedstocks for biodiesel and the level of these contaminants in feedstock samples from a rendering plant indicated that an efficient process for converting waste grease andAnimal fats must tolerate a wide range of feedstock properties.

TL;DR: Results showed that B. subtilis DM-04 and P. aeruginosa M and NM strains could be effective for in situ bioremediation and expressive growth and biosurfactant production by exogenously seeded bacteria in crude petroleum-oil rich soil.

TL;DR: Research in this area is not as advanced as bio-oil and bio-diesel research and there is opportunity for further study in the areas of reaction optimization, detailed characterization of products and properties, and scale-up.

TL;DR: This study shows that a near-theoretical glucose yield (96-104%) from acid-catalysed steam pretreated corn stover can be obtained if xylanases are used to supplement cellulases during hydrolysis, thereby improving the access of enzymes to cellulose.

TL;DR: A software computer program was used to simulate the process by comparison of theoretical with experimental results and show minimum differences between both types of data.

TL;DR: The results obtained from the batch experiments revealed the ability of algal species in removing dye, belonging to green algae, as a viable biomaterial for biological treatment of triphenylmethane dye, Malachite Green.

TL;DR: In this paper, the authors investigated suitability of different crop species and varieties, optimum time of harvesting, specific methane yield and methane yield per hectare for anaerobic digestion of energy crops.

TL;DR: The experimental results compared with No. 2 diesel fuel showed that biodiesel provided significant reductions in PM, CO, and unburned HC, but the NO(x) increased by 11.2%.

TL;DR: A review presents an account of the problem and the description of colour causing components in distillery wastewater and a detailed review of existing biological approaches.

TL;DR: The chemical characterization showed that the pyrolysis oils derived from the fast pyro-lysis of rice husk contained considerable amounts of carbonyl groups and/or oxygen content, resulting in low pH and low heating values.

TL;DR: Various applications of oil cakes in fermentation and biotechnological processes, their value addition by implementation in feed and energy source (for the production of biogas, bio-oil) as well are discussed.

TL;DR: It was found, using a batch system, that enzyme inhibition caused by undissolved methanol was eliminated by adding t-butanol to the reaction medium, which also gave a noticeable increase of reaction rate and ester yield.

TL;DR: The effect of process conditions used for wheat straw pretreatments on the liquor and residue composition was studied in this paper, where the authors expressed the pretreatment conditions in a "combined severity R(0)(')-factor".

TL;DR: Sugarcane bagasse hydrolysis with 2.5% (v/v) HCl yielded 30.29g/L total reducing sugars along with various fermentation inhibitors such as furans, phenolics and acetic acid with maximum ethanol yield from ion exchange treated hydrolysate.

TL;DR: Phenotypic characterization and phylogenetic analysis based on 16S rDNA sequence comparisons indicate that three strains of halophilic and halotolerant bacteria isolated from effluents of textile industries showed remarkable ability in decolorizing the widely utilized azo dyes.

TL;DR: Fractionation of the water-extractable organic carbon showed that the ratio of hydrophobic to hydrophilic carbon increased to values greater than unity for stabilized compost, and confirmed the influence of solubilization, mineralization and organic matter transformation on the quality of the final compost.

TL;DR: The comparative evaluation of the adsorption capacity of the modified sugarcane bagasse materials for Cu(2+), Cd( 2+), and Pb(2+) ions in aqueous single metal solution by classical titration.

TL;DR: Findings indicated promising biosorption of cadmium and chromium by the Rhizopus and Aspergillus spp.

TL;DR: The increase in biomass yields and changes in other constituents indicated the influence ofsalinity and the organism's adaptability to the tested levels of salinity (17 mM to 85 mM).