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- W67225338 abstract "As early as 1972 MEADOWS et al. published their study “The Limits to Growth” on the future of the world economy, which was updated last in 2004 as “Limits to Growth: The 30-year Update”. In this study, which has been the topic of much controversy, the authors concluded that raw materials have been used excessively since 1980. The threatening grave ecological ramifications could only be lessened by drastically reducing the use of resources, thus preventing the collapse of the ecosystem. Therefore, closing raw material flow cycles in order to preserve global resources takes on a central significance. In the recent past, phosphorus resources and utilisation have increasingly become the focus of scientific attention, since phosphorus can be regarded as a scarce resource today. Phosphorus demand is stagnating in industrialised countries, but in emerging economies and developing countries, it is increasing with the constant rise in population and with the enormous economic growth in certain countries such as China and India. In order to cover global phosphorus demand, approx. 130 million Mg of phosphate rock is mined annually. The production is concentrated in only a few countries, based on geological conditions (Figure 1). Germany and also the other European countries do not have any phosphate ore deposits and are, therefore, dependent upon the import of phosphates. For the fertiliser industry, which requires 80 % of phosphorus produced world-wide, there is no phosphate substitute that would make the utilisation of raw phosphates dispensable. Therefore, the importance of recycling phosphorus has grown significantly. USA 7%" @default.
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- W67225338 date "2008-01-01" @default.
- W67225338 modified "2023-09-27" @default.
- W67225338 title "Protecting the Phosphorus Resource by Phosphorus Recycling in Wastewater Treatment Plants" @default.
- W67225338 hasPublicationYear "2008" @default.
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