Torrefaction is a thermo-chemical process that reduces the moisture content of wood and transforms it into a brittle, char-type material. The thermo-chemical process can reduce the mass of wood by 20-30% resulting in a denser, higher-valued product that can be transported more economically than traditional wood chips. Through torrefaction, wood may retain 90% of the energy value. This energy de...

abstract to study the effects of four types of mulches including wood chips, municipal compost, sawdust and gravel in three different thicknesses on growth of platanus orientalis during two years, an experiment was conducted in mashhad area with semi-arid climate. the research was conducted as split plot based on a completely randomized block design with four replications. treatments included c...

Pulp & Paper Canada T 116 106:5 (2005) ❘ ❘ ❘ 41 HE ADVERSE EFFECTS of wood decay on chip quality, pulp yield, and pulp quality have been well documented [8,2024,27]. Decay can enter the chip supply either by utilization of decayed standing wood [14] or through prolonged or improper storage [16]. The net effect of using decayed wood for pulping is cost increases due to decreases in pulp yield, r...

Woody feedstocks will play a critical role in meeting the demand for biomass-based energy products in the US. We developed an integrated model using comparable system boundaries and common set of assumptions to ascertain unit cost and greenhouse gas (GHG) intensity of electricity and ethanol derived from slash pine (Pinus elliottii) at the production and consumption levels by considering existi...

Abstract Tree seedlings are produced in tree nurseries. However, nursery-grown often exhibit poor performance after outplanting due to the lack of adaptation harsh natural conditions. These do not necessarily possess well-developed ectomycorrhizal symbionts, which help obtain nutrients and increase resilience exchange for seedling photoassimilated carbon. To improve quality conditions, we sowed...

A pilot plant for electrodialytic remediation of CCA-treated wood in larger scale has been designed and tested at DTU. Several process parameters were investigated, and it was found that the use of collecting units and soaking of the wood prior to the electrodialytic process had a positive influence on the remediation process. There is a tendency towards easier remediation of wood chips < 2cm, ...

Various exotic foreign bodies have been found in the lumen of acutely inflamed appendices. The list includes parasites, pips, chips of bone, metal and wood. In the following case the cause of obstruction was a trichobezoar.

An ultrasound-assisted extraction (UAE) method using ethanol was applied for extracting arabinogalactan (AG) and dihydroquercetin (DHQ) simultaneously from larch wood, as a pretreatment for pulping and papermaking. The extraction parameters were optimized by a Box-Behnken experimental design with the yields of AG and DHQ as the response values. Under optimum conditions (three extractions, each ...