Adsorption of cellulase on solids resulting from pretreatment of poplar wood by ammonia fiber expansion (AFEX), ammonia recycled percolation (ARP), controlled pH, dilute acid (DA), flowthrough (FT), lime, and sulfur dioxide (SO(2)) and pure Avicel glucan was measured at 4 degrees C, as were adsorption and desorption of cellulase and adsorption of beta-glucosidase for lignin left after enzymatic...

The Hawkesbury-Nepean River (HNR) system in South-Eastern Australia is the main source of water supply for the Sydney Metropolitan area and is one of the more complex river systems due to the influence of urbanisation and other activities in the peri-urban landscape through which it flows. The long-term monitoring of river water quality is likely to suffer from data gaps due to funding cuts, ch...

BACKGROUND The microalgal-based industries are facing a number of important challenges that in turn affect their economic viability. Arguably the most important of these are associated with the high costs of harvesting and dewatering of the microalgal cells, the costs and sustainability of nutrient supplies and costly methods for large scale oil extraction. Existing harvesting technologies, whi...

Anaerobic Digestion (AD) is one of the oldest processes for producing biofuels from organic waste. Approximately 180 years have passed since construction first modern plant, however, large prospects improvement are still feasible, especially in regards to quality and uniformity biogas produced. This work focalizes on main issues available post-production treatment biogas; subsequently, a mini-r...

Abstract In recent years, there has been a steady increase in the number of solid wastes because increasing human population and urbanisation. Solids include industrial waste, agricultural forest waste bio-products. Bioenergy produced total 10% participation energy global production, from source biomass: plants, animal, organic waste. some seeds like Juliform seed, Watermelon Seed oil is prepar...

The cheese whey (95% composed of water) is an effluent produced in the industry, which more than 1.5 million tons are generated Spain, constituting a serious environmental problem. process starts with new fermentative/enzymatic technology that totally converts whey, mainly by lactose, proteins, and salts, into fermented product higher added value. This lactic acid bacteria biomass, ammonium lac...

We study the properties of jammed packings of frictionless spheres over a wide range of volume fractions. There exists a crossover volume fraction which separates deeply jammed solids from marginally jammed solids. In deeply jammed solids, all the scalings presented in marginally jammed solids are replaced with remarkably different ones with potential independent exponents. Correspondingly, the...

Algal blooms are rapid growth of microscopic algae in the water that harmful to environment because they block sunlight from reaching plants under surface, deplete useful nutrients, and release carbon emissions. Flocculation is a method used remove it works by binding agglomerating suspended particles form large assist their settling. However, most flocculants chemical may harm quality. Bio-flo...

The total solids content of feedstocks affects the performances of anaerobic digestion and the change of total solids content will lead the change of microbial morphology in systems. In order to increase the efficiency of anaerobic digestion, it is necessary to understand the role of the total solids content on the behavior of the microbial communities involved in anaerobic digestion of organic...