The effect of aging on element plant availability and bacterial counts of mixtures of wood ash and sewage sludge
This study investigated the chemical composition of a mixture of 70% wood ashes (a by-product of timber-industry) and 30% sewage sludge (% dry weight), immediately after preparation and after storage (42 days). The mixture had higher Mehlich 3 extractable Ca, Mg and K concentrations than either comp...
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| Format: | Article |
| Language: | English |
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Universidad del Bío-Bío
2014-12-01
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| Series: | Maderas: Ciencia y Tecnología |
| Subjects: | |
| Online Access: | https://revistas.ubiobio.cl/index.php/MCT/article/view/1310 |
| _version_ | 1797354807707566080 |
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| author | Yudani Pousada-Ferradás Socorro Seoane-Labandeira Miguel Blanco Avelino Núñez-Delgado |
| author_facet | Yudani Pousada-Ferradás Socorro Seoane-Labandeira Miguel Blanco Avelino Núñez-Delgado |
| author_sort | Yudani Pousada-Ferradás |
| collection | DOAJ |
| description | This study investigated the chemical composition of a mixture of 70% wood ashes (a by-product of timber-industry) and 30% sewage sludge (% dry weight), immediately after preparation and after storage (42 days). The mixture had higher Mehlich 3 extractable Ca, Mg and K concentrations than either component alone, and low plant-available heavy metal concentrations, both immediately after mixing and after storage for up to 6 weeks. The results support the view that mixtures of this type may be useful for liming and fertilizing, given their neutralizing capacity and phyto nutrient concentrations. Furthermore, we compared the survival of Escherichia coli in a wood ash and sewage sludge mixture with their survival in mixtures of sewage sludge and two levels of quicklime. The time needed to eliminate most bacteria was 29 days in the ash-sludge combination, while nine days were required for one of the quicklime-sludge mixtures, and counts were minimal for the quicklime-sludge mixture with a pH>12.
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| first_indexed | 2024-03-08T13:54:12Z |
| format | Article |
| id | doaj.art-6b6bbdae947b4e358aebf5d58c05cef0 |
| institution | Directory Open Access Journal |
| issn | 0717-3644 0718-221X |
| language | English |
| last_indexed | 2024-03-08T13:54:12Z |
| publishDate | 2014-12-01 |
| publisher | Universidad del Bío-Bío |
| record_format | Article |
| series | Maderas: Ciencia y Tecnología |
| spelling | doaj.art-6b6bbdae947b4e358aebf5d58c05cef02024-01-15T18:06:42ZengUniversidad del Bío-BíoMaderas: Ciencia y Tecnología0717-36440718-221X2014-12-01133The effect of aging on element plant availability and bacterial counts of mixtures of wood ash and sewage sludgeYudani Pousada-Ferradás0Socorro Seoane-Labandeira1Miguel Blanco2Avelino Núñez-Delgado3Universidad Santiago de CompostelaUniversidad Santiago de CompostelaUniversidad Santiago de CompostelaUniversidad Santiago de CompostelaThis study investigated the chemical composition of a mixture of 70% wood ashes (a by-product of timber-industry) and 30% sewage sludge (% dry weight), immediately after preparation and after storage (42 days). The mixture had higher Mehlich 3 extractable Ca, Mg and K concentrations than either component alone, and low plant-available heavy metal concentrations, both immediately after mixing and after storage for up to 6 weeks. The results support the view that mixtures of this type may be useful for liming and fertilizing, given their neutralizing capacity and phyto nutrient concentrations. Furthermore, we compared the survival of Escherichia coli in a wood ash and sewage sludge mixture with their survival in mixtures of sewage sludge and two levels of quicklime. The time needed to eliminate most bacteria was 29 days in the ash-sludge combination, while nine days were required for one of the quicklime-sludge mixtures, and counts were minimal for the quicklime-sludge mixture with a pH>12. https://revistas.ubiobio.cl/index.php/MCT/article/view/1310wood ashsewage sludgequicklimemixturese. coli counts |
| spellingShingle | Yudani Pousada-Ferradás Socorro Seoane-Labandeira Miguel Blanco Avelino Núñez-Delgado The effect of aging on element plant availability and bacterial counts of mixtures of wood ash and sewage sludge Maderas: Ciencia y Tecnología wood ash sewage sludge quicklime mixtures e. coli counts |
| title | The effect of aging on element plant availability and bacterial counts of mixtures of wood ash and sewage sludge |
| title_full | The effect of aging on element plant availability and bacterial counts of mixtures of wood ash and sewage sludge |
| title_fullStr | The effect of aging on element plant availability and bacterial counts of mixtures of wood ash and sewage sludge |
| title_full_unstemmed | The effect of aging on element plant availability and bacterial counts of mixtures of wood ash and sewage sludge |
| title_short | The effect of aging on element plant availability and bacterial counts of mixtures of wood ash and sewage sludge |
| title_sort | effect of aging on element plant availability and bacterial counts of mixtures of wood ash and sewage sludge |
| topic | wood ash sewage sludge quicklime mixtures e. coli counts |
| url | https://revistas.ubiobio.cl/index.php/MCT/article/view/1310 |
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