Integrated use of sewage sludge and basalt mine waste as soil substitute for environmental restoration
| Autor: | Beatriz Alicia Firpo, Maila Artico, Leonardo Luís Artico, Rejane Maria Candiota Tubino |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
quarry restoration
Amendment Soil amendment Graminoid Mine degradation Biosolid Organic matter General Environmental Science chemistry.chemical_classification Mining engineering. Metallurgy biology Waste management soil amendment Biossolidos Quarry restoration General Engineering TN1-997 Environmental restoration biosolid Mineração Biowaste biology.organism_classification biowaste Engineering (General). Civil engineering (General) mine degradation Degradação do solo chemistry Avena strigosa General Earth and Planetary Sciences Environmental science Sewage treatment Soil fertility TA1-2040 Sludge |
| Zdroj: | Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS REM-International Engineering Journal v.73 n.2 2020 REM-International Engineering Journal Fundação Gorceix (FG) instacron:FG REM: International Engineering Journal, Vol 73, Iss 2, Pp 225-232 (2020) |
| Popis: | If not managed properly, mining waste can be detrimental to the environment. In addition, sewage treatment plants produce sludge, a biowaste rich in organic matter which is often sent to landfills. The present study evaluated the use of sewage sludge as an amendment for mine waste from a basalt quarry as an alternative to the use of soil from borrow areas during environmental restoration. An ex situ experiment was developed at the Federal University of Rio Grande do Sul - UFRGS. The experimental delineation compared the addition of two sources of organic matter (sewage sludge - SS and cover soil from that same region - CS) to basalt waste rock (BWR) against the sole use of cover soil, which a current restoration technique. The graminoid Avena strigosa (black oats) and soil fertility tests were used as indicators of soil conditions. Amending BWR with SS led to the best physical and chemical conditions and the highest production of dry matter in comparison to the use of CS as amendment or its single use as cover soil. These results show that mixing SS to BWR can be used as a substitute for cover soil during the environmental restoration of basalt quarries, further contributing to the final disposal of these materials. |
| Databáze: | OpenAIRE |
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