PHOSPHORUS AND HEAVY METAL CONTENTS IN SMALL-SCALE COMPOSTING AREAS
| Autor: | Arcângelo Loss, Gustavo Brunetto, Cledimar Rogério Lourenzi, Paul Richard Momsen Miller, Rafael da Rosa Couto, Jucinei José Comin, Cleiton Junior Ribeiro Lazzari, Lucas Benedet, Vilmar Müller Júnior |
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| Rok vydání: | 2020 |
| Předmět: |
Soil test
Compost Phosphorus chemistry.chemical_element 04 agricultural and veterinary sciences Biodegradable waste 010501 environmental sciences engineering.material 01 natural sciences Food waste chemistry Environmental chemistry Soil water 040103 agronomy & agriculture engineering 0401 agriculture forestry and fisheries Environmental science Soil horizon Leachate 0105 earth and related environmental sciences |
| Zdroj: | International Journal of Research -GRANTHAALAYAH. 8:1-14 |
| ISSN: | 2350-0530 2394-3629 |
| Popis: | Composting is an important tool for recycling and proper disposal of organic waste. However, in small-scale composting, where total soil sealing and leachate collection is not carried out, elements such as P, Cu, Zn, Cd, Cr, Ni and Pb may accumulate in soil. This study aimed to assess phosphorus and heavy metal contents in soils of areas used for small-scale food waste composting. In order to do this, we sampled soil depths of 0-5, 5-10, 10-20, 20-30 and 30-40 cm of four areas with composting times of 16, 12, 7 and 1 year, in addition to four reference areas. All the study areas are located in the city of Florianópolis, Santa Catarina state, Brazil. We determined available P, Cu and Zn contents and total Cu, Zn, Cd, Cr, Ni and Pb contents in the soil samples. We found that the production of organic compost directly on the soil generally promoted increases in available P contents, which were above acceptable environmental limits, especially at the uppermost soil layers. Still, the presence of Cu, Zn, Cd, Cr, Ni and Pb was not an environmental liability in the composting areas, as the contents found were below those recommended by legislation. |
| Databáze: | OpenAIRE |
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