Search

Studies of industrial symbiosis (IS) focus on the physical flows of materials and energy in local industrial systems. In an ideal IS, waste material and energy are shared or exchanged among the actors of the system, thereby reducing the consumption of virgin material and energy inputs, and likewise the generation of waste and emissions. In this study, the environmental impacts of an industrial ecosystem centered around a pulp and paper mill and operating as an IS are analyzed using life cycle assessment (LCA). The system is compared with two hypothetical reference systems in which the actors would operate in isolation. Moreover, the system is analyzed further in order to identify possibilities for additional links between the actors. The results show that of the total life cycle impacts of the system, upstream processes made the greatest overall contribution to the results. Comparison with stand-alone production shows that in the case studied, the industrial symbiosis results in modest improvements, 5% to 20% in most impact categories, in the overall environmental impacts of the system. Most of the benefits occur upstream through heat and electricity production for the local town. All in all it is recommended that when the environmental impacts of industrial symbiosis are assessed, the impacts occurring upstream should also be studied, not only the impacts within the ecosystem. [ABSTRACT FROM AUTHOR]

Abstract: An industrial symbiosis (IS) is a group of industrial plants and other actors which exchange energy, water, by-products and waste. This article studies the evolution of an IS centred around a Finnish pulp and paper mill and analyses how the operations of the case system developed in a more sustainable direction during the years 1890–2005. We build upon basic sustainability principles known as The Natural Step (TNS) System Conditions by identifying and selecting quantifiable indicators for each of the conditions in the case of our target symbiosis. The study reveals that the environmental impacts of the case IS became more far-reaching during the 110-year period studied. Emissions, however, decreased substantially after the 1970s due to tightening environmental legislation and other policy measures and the progress in environmental technology, not due to symbiosis-type of arrangements. There has been no strong driver for more symbiosis-like cooperation among the companies in this study. It appeared that the main motives for increased collaboration were economic. [ABSTRACT FROM AUTHOR]

The first Finnish National Waste Plan follows the waste policy of the European Union by setting high recovery rate targets, i.e., 50%wt by the end of 2000 and 70%wt by 2005, for municipal solid waste management (MSWM). A computer model, TASAR (Tool for Analysing Separation Actions and Recovery), was developed to study recovery levels reached by different separation strategies in Finland. The model includes a special method which was developed for the analysis of interdependence between the on-site obligation limits and the coverage of on-site collection systems. In the study TASAR proved to be a useful tool in calculating the recovery rates attained with various separation strategies. The recovery rate targets set in the National Waste Plan cannot be reached by source separation alone. This conclusion holds true regardless of the source separation strategy used. Even when the source separation activity of waste producers was increased by 15 to 30% the 70%wt target required an all-inclusive on site collection for all recoverable waste components and all waste producers. Consequently, central separation of mixed waste must be added to the MSWM strategies pursued in order to improve the efficiency of source separation. [ABSTRACT FROM PUBLISHER]

Municipal solid waste management (MSWM) is undergoing major changes due mainly to high recovery rate targets being set by the European Union and national Governments. These higher rates have been set as one measure to achieve the sus- tamable development required by Agenda 21 of United Nations Conference on Environment and Development (UNCED) in 1992. Increasing the recovery rates for munici pal solid waste affects waste management systems, particularly the composition of waste streams, costs and emissions from treatment and disposal activities. [ABSTRACT FROM PUBLISHER]

Management of forest resources and related industries has a significant effect on the Finnish environment. Therefore there was an obviousneed for a study to assess environmental impacts and to identify needs and options for environmental improvements in the forest sector. It was against this background that the Finnish Environment Institute carried out a life cycle assessment (LCA) of the Finnish forest industry. This application included methodological innovations compared with the traditional product-related LCA because it was a study of the whole production system of the mechanical and chemical forest industry. Areas for improvement of environmental protection in the forest sector for the year 2005 were identified on the basis of the inventory (emissions, wastes, etc.), environmental impact assessment and other available data. During the study a new impact assessment procedure was developed in order to assess more actual impacts of country-specific systems. Although the prioritized factors found were not strongly ranked against each other it can be concluded that maintaining biodiversity in the context of forestry practices and increasing the efficiency of energy use are the key issues in the environmental protection of the forest sector. Before detailed ranking of emissions and other stressors can be produced there is a need for more reliable stressor data, better understanding of stressor/effect relationships and more consensus on the importance of different environmental problems. Despite the limitations and needs for further development, the presented LCA approach can be regarded as a useful tool for providing a deeper understanding of the key issues in the environmental protection of a whole production system. [ABSTRACT FROM AUTHOR]

Abstract: This article evaluates the impacts of integrated environmental permits on the environmental performance of Finnish pulp and paper industry. It assesses the performance of the Finnish pulp and paper mills in relation to the EU best available techniques (BAT) associated emission levels and compares the emission limit values and product specific emissions of the mills with non-integrated permits to those of the mills with new integrated permits. A set of practical indicators for the assessment of BAT, local conditions and transboundary effects is presented and discussed. Moreover, the paper highlights some significant cross-media aspects in the Finnish pulp and paper industry. [Copyright &y& Elsevier]

Abstract: Industrial symbioses (ISs) and eco-industrial parks (EIPs) are key concepts of industrial ecology (IE). The aim of ISs and EIPs is to minimise inefficient material and energy use by utilising local by-product and energy flows. Industrial symbioses tend to develop through spontaneous action of economic actors, for gaining of economic benefit, but these systems can be designed and promoted via policy instruments as well. A literature review showed that national programmes for eco-industrial parks can be found in different parts of the world. In the action programmes and other sustainable consumption and production (SCP) policy documents of the EU, on the other hand, industrial symbioses gain less recognition as a path to enhanced sustainable production. In this article, we consider this and also analyse how the evolution and environmental performance of an industrial symbiosis system centred on a Finnish pulp and paper mill have been affected by SCP policy instruments. With regard to the system forming the subject of the case study, and Finnish industrial systems in general, policy instruments have succeeded in reducing emissions but not in systematically encouraging operators toward symbiosis-like activities. All in all, few studies exist on the overall impact of policy instruments promoting design of eco-industrial parks. It is not self-evident that symbiosis-like production systems would be sustainable in every case, as the background assumptions for political promotion of EIPs suggest. We concluded that industrial symbioses should be analysed and developed on a life cycle basis, with documentation of the real environmental benefits due to efficient resource use and decreased emissions in comparison to standalone production. ISs can then bring eco-competitiveness to companies in relation to SCP tools, such as environmental permits, ecolabels, and future product regulation based on the Ecodesign Directive in Europe. Indirect encouragement of symbiosis through land-use regulation and planning, in such a way that material fluxes between companies are possible both in operations and in financial terms, may prove effective. The same holds for waste policies that encourage increased reuse of a company’s waste by other enterprises. [Copyright &y& Elsevier]