Functional Recycling of Biobased, Borate-Stabilized Insulation Materials As B Fertilizer
| Autor: | Frank Radosits, Olivier Duboc, Walter Goessler, Walter W. Wenzel, Jakob Santner, Konrad Steiner |
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| Rok vydání: | 2019 |
| Předmět: |
Rapeseed
chemistry.chemical_element Incineration General Chemistry 010501 environmental sciences engineering.material Raw material Pulp and paper industry 01 natural sciences Sunflower Europe chemistry Borates Biochar engineering Environmental Chemistry Environmental science Recycling Fertilizer Fertilizers Boron 0105 earth and related environmental sciences Fire retardant |
| Zdroj: | Environmental Science & Technology. 53:14620-14629 |
| ISSN: | 1520-5851 0013-936X |
| Popis: | Boron is a finite resource, which has been listed as a critical raw material in the EU since 2014. Glass, frits and ceramics production, as well as fertilizers are among the major uses of B. Moreover, about 50 000 t B have been applied as fire retardant and pest repellent in cellulose fiber insulation (CFI) in Europe since the 1980s. Here we propose the end-of-life utilization of borated CFI as B fertilizer, to decrease societal B consumption and to avoid costly and potentially environmentally harmful CFI incineration and deposition in landfills. In a case study, we show that CFI biochar can provide substantial amounts of B to rapeseed and sunflower, with the B plant-availability being comparable to sodium tetraborate, a conventional B fertilizer. The annual B fertilizer consumption of the EU is estimated at ∼4000 t B yr–1, which could be sustained by the B currently installed as CFI for >10 years. In addition, the annual use of B in CFI of 1100 t B yr–1 could cover ∼25% of the annual B fertilizer demand ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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