What You Need To Know About Wood Chips
Wood Chips are medium sized solid wood materials made from chipping or cutting larger pieces of wood. They are mainly used as raw materials in the technical wood manufacturing process. Usually, the bark and the log are separated because they have different chemical properties.
The traditional application of wood chip has been in the provision of solid fuel for heating in energy plants and buildings. Newer heating systems are also increasingly using wood chips or wood pellets because they are cheaper. The size of the chips is important when using woodchip as fuel in small plants. They are also used for landscaping and garden mulch. You can use it to control weeds, conserve water, and reduce soil erosion. As the wood chip decomposes, it enhances permeability, bioactivity, soil structure and nutrient availability.
Wood Chip applications are also in landscaping, restoration ecology, gardening and mushroom cultivation. According to differences in their mechanical and chemical properties, wood logs are mostly peeled and the wood and bark chips processed in different processes
Wood chips for pulp and paper industry
Wood Chips for chemical pulp are required to be fairly uniform in size and free of bark. The optimum size usually varies with the species. Damage to wood fiber should be avoided because it’s very important to the pulp quality. Wood chip applications in the pulp manufacture are restricted to sapwood and heartwood only. Because of its low fiber quality, the bark is often used to provide fuel for the pulp mill. Pulp making often requires that would be chipped and screened for uniformed sized chips.
Another area of wood chips application is playground surfacing. They are known for producing effective surfacing material and impact attenuation surfaces. They are effective in reducing the impact of falls from the playground equipment, cushion fall, or soft call. It is an environmentally friendly alternative to those rubber playground surfaces.The US is the largest producer and importer and the second largest exporter of wood products
Woodchip is among the wood products that are experiencing an increase in trade year by year. Major exporters of the product include Australia, Chile, Vietnam, USA, Thailand, Vietnam Brazil and Uruguay among others. Top importers include Japan and China. The global wood chip demand is primarily driven by the pulp market. When the pulp market declines there is a marked decline in trade. Major importing and exporting countries dominate trade.
Wood chips prices usually depend on the nature of the material, for example, bark, whole tree chips or sawmill residue, and the distance from the point of manufacture. In well wooded European countries, for instance, Australia, Germany, Finland and Sweden, Wood chips have become an alternative fuel for family homes and larger buildings because of its abundance and low cost. EU is currently promoting woodchips for energy production.