نوع مقاله : تالیفی
نویسندگان
1 دانشگاه علوم کشاورزی و منابع طبیعی گرگان
2 هیات علمی دانشگاه گرگان
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسنده [English]
Pulp and paper industries produce various and considerable amounts and types of
energy-rich natural biopolymeric wastes including wood wastes, residuals from
recycled paper production process, various low-quality recovered papers and mill broke
and papermaking sludge in all mill operations including wood preparation, pulp and paper
production, chemicals recovery, recycled papers processing and wastewater treatments.
The volume of these biopolymeric wastes depends on the technological advances, pulp
and paper grade and quality of the wood raw material, which provide notable opportunities
for the recovery of consumed energy and, especially to reduce adverse environmental
effects in paper industries. Generally, energy recovery from natural biopolymeric wastes
has been currently considered as a desirable and feasible process in most paper industries
of the world. Application of such novel technologies in paper industries can result in
higher productivity, lower investment costs and safer operations compared to conventional
productions that consume fossil fuels to produce energy. In addition to energy recovery,
burning the natural biopolymeric wastes has some advantages such as lowering the air
pollution, land-fill operations and the amount and volume of the wastes. The recovered
energy can be used in heating systems and power production. A biorefinery bears the aim at
producing high-value bio-based chemicals rather than biofuels. The current status of world
solid wastes and know-how knowledge of their use as an energy source in the pulp and
paper industries are reviewed in the present study.
کلیدواژهها [English]