جستجوی مقالات مرتبط با کلیدواژه "wood" در نشریات گروه "مکانیزاسیون کشاورزی"

With regard to competition and economic conditions from pulp and paper plants، it is possible to provide emerging products and energy in wood and pulp industries، which may affect the main products and they will be converted into by-products. In future the world needs clean and renewable energy، which will be supplied، from biomass conclusively. In order to produce oxygen and carbon dioxide absorption، the tree plantation will be very useful on earth''s atmosphere. Wood waste and biomass are rich of carbon and hydrogen، and they can provide energy and different chemicals by the new techniques. The principles are similar to refineries and petrochemical plants called biorefinery، and biofuels and valuable chemicals such as methanol، Fischer-Tropsch Liquid (FTL) and Dimethyl Ether (DME) are produced. Usage of any kind of biomass، agricultural waste، and wood can be useful to produce a variety of wood products، wood composites، and also paper and paperboard. But the first step، in proper planning of forest is the silviculture by natural resource specialists. Concerning production of wood and paper، gasification is the best method of chemicals and energy production from wood wastes and black liquor. In the last years، researchers have developed new fields of fuel and energy from renewable sources، specifically biomass dramatically.

This study is an objective effort to investigate the role of wood and paper industries management in application of agricultural wastes and residues. The role of wood and paper industries management of country in sustainable development and upcoming chanlenges (including growing population and over exploitation use of sources especially forest resources, environmental pollutions, importance of sustainable development as an ensuring factor of food safety and generations rights) has discussed in present work. Therefore, the amount of agricultural residues usage in pulp and paper industries in Iran was compared, and in addition to expression of general concepts of sustainable development, following propagative approaches introduced to planners and policymakers of wood industries: training people in optimal use of raw materials, management of agricultural residues and use of these materials in the construction of composite materials, correction of management procedures in forest and waste reduction during operational stage, government support for forest planting of fast growing species, utilization of waste papers through recycling and reprocessing in paper industries, support for NGOs active in environment and recycling, cultural works and public enlightenment to clarify the statues and worth of forest and rangelands and sustainable management.