Utilization of sludge derived from landfill leachate treatment as a source of nutrients for the growth of Nicotiana alata L
| Autor: | Maria Eugenia Lovato, Daiana Soledad Orecchia, Ricardo Martín Manzo, Mariana Guadalupe Abrile, Maria Laura Fiasconaro |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
0208 environmental biotechnology Argentina Amendment 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Nutrient Tobacco Organic matter Dry matter Leachate Response surface methodology Revegetation Waste Management and Disposal 0105 earth and related environmental sciences chemistry.chemical_classification Sewage biology Nutrients General Medicine biology.organism_classification 020801 environmental engineering chemistry Agronomy Seedling Environmental science Water Pollutants Chemical |
| Zdroj: | Journal of Environmental Management. 289:112488 |
| ISSN: | 0301-4797 |
| DOI: | 10.1016/j.jenvman.2021.112488 |
| Popis: | The sludges derived from the leachate treatment (LS) represent an important environmental and operational problem in the landfill management. On the other hand, they can be utilized as an alternative source of nutrients and organic matter. The main objective of this work was to evaluate the reuse of the LS of a sanitary landfill in Santa Fe city - Argentina, as an organic amendment for the development of Nicotiana alata L. plants. Different doses of LS were applied to a soil mixture for potted seedling growth. The response surface methodology was applied, using a one-factor design. Once the phenological stage of flowering began, the plants were harvested. Physiological and biochemical determinations were made in order to evaluate the effects of the different amendments. Application of LS notably improved growth parameters such as stem height, leaf area and dry matter. Additionally, the content of proteins and photosynthetic pigments was enhanced. Through the multiple regression statistical analyses, the relationship between the response variables and the sludge content was established. The multivariate optimization analysis yielded 53% as the optimal sludge content. Our results indicate that this sludge, in appropriate doses, can be used as an organic amendment for the revegetation of sanitary landfills. |
| Databáze: | OpenAIRE |
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