tailieunhanh - Waste management from pulp and paper production in the European Union

Eleven million tonnes of waste are produced yearly by the European pulp and paper industry, of which 70% originates from the production of deinked recycled paper. Wastes are very diverse in composition and consist of rejects, different types of sludges and ashes in mills having on-site incineration treatment. The production of pulp and paper from virgin pulp generates less waste but the waste has similar properties to waste from the production of deinked pulp, although with less inorganics [.]. For this reason, it is necessary to continue research on different applications of wastes, while taking into account the environmental and economical factors of these waste treatments. | WASTE MANAGEMENT FROM PULP AND PAPER PRODUCTION IN THE EUROPEAN UNION . Monte E. Fuente A. Blanco and C. Negro Chemical Engineering Department. Complutense University of Madrid. Avda. Complutense s n. 28040 Madrid Spain Corresponding author Tel. 34 91 394 42 45 Fax 34 91 394 42 43 e-mail address cmonte@ . Monte 1 Abstract Eleven million tonnes of waste are produced yearly by the European pulp and paper industry of which 70 originates from the production of deinked recycled paper. Wastes are very diverse in composition and consist of rejects different types of sludges and ashes in mills having on-site incineration treatment. The production of pulp and paper from virgin pulp generates less waste but the waste has similar properties to waste from the production of deinked pulp although with less inorganics. Due to legislation and increased taxes landfills are quickly being eliminated as a final destination for wastes in Europe and incineration with energy recovery is becoming the main waste recovery method. Other options such as pyrolysis gasification land spreading composting and reuse as building material are being applied although research is still needed for optimization of the processes. Due to the large volumes of waste generated the high moisture content of the waste and the changing waste composition as a result of process conditions recovery methods are usually expensive and their environmental impact is still uncertain. For this reason it is necessary to continue research on different applications of wastes while taking into account the environmental and economical factors of these waste treatments. KEYWORDS Paper industry wastes pulp and paper sludge solid waste generation waste recovery waste minimization 2 1. Introduction Different processes in the pulp and paper industry result in the formation of different solid wastes and sludge. Solid waste is mainly generated from pulping deinking unit operations and wastewater treatment. The amount

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