Phosphate sources derived from wastewater and sewage sludge: agronomic potential
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da USP |
Texto Completo: | https://www.teses.usp.br/teses/disponiveis/11/11140/tde-10092021-083907/ |
Resumo: | Phosphorus (P) is a nutrient essential for energy metabolism and DNA/RNA production in plants. In Brazil, high amounts of P fertilizers are applied onto agricultural fields every year to supply plants demand, creating an economic, environmental and supply chain risk scenario. To overcome those issues, phosphate sources recycled from wastewaters and sewage sludge merge as an alternative to conventional fertilizers, due to their agronomic potential use and renewable origins, reducing environmental impact while contributing to sustainable agriculture and circular economy. Struvite and hazenite are minerals recovered via chemical precipitation from wastewaters, while ashdec can be obtained through thermochemical treatment of sewage sludge ashes. Low water-solubility and late release, more aligned with plants demand, are common characteristics of these recycled fertilizers, what could improve the efficiency of P fertilization. Here, we evaluated the solubilization of struvite, hazenite ashdec and triple superphosphate (TSP), their P release dynamics and their impact on the solution pH and on soil P fractions through an incubation leaching columns experiment. We also assessed their agronomic potential and efficiency compared to TSP (chosen conventional source) through a greenhouse trial for two 90 days cycles of sugarcane (Saccharum spp.) under those phosphate sources and three P doses (30, 60 and 90 mg kg-1). Dry mass yield (DMY), biometric parameters, nutrient uptake and soil P fractions were analyzed for each harvest. Our findings showed that while the recycled sources are less water-soluble and promote late P release, solubilizing less P than TSP in the initial period, plants were able to improve P utilization from these sources, since struvite (both harvests) and hazenite (first cycle) outperformed, while ashdec was comparable to TSP in DMY and P uptake. In the first 90 d, all three recycled sources showed higher soil labile P levels than TSP, which was the only source increasing the non-labile pool by the end. |
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Phosphate sources derived from wastewater and sewage sludge: agronomic potentialFontes de fosfato derivadas de águas residuárias e lodo de esgoto: potencial agronômicoAgronomic potentialÁguas residuáriasDifusão de fósforo no soloEstruvitaLiberação lentaLodo de esgotoPhosphorus recyclingPotencial agronômicoReciclagem de fósforoSewage sludgeSlow-releaseSoil phosphorus diffusionStruviteWastewaterPhosphorus (P) is a nutrient essential for energy metabolism and DNA/RNA production in plants. In Brazil, high amounts of P fertilizers are applied onto agricultural fields every year to supply plants demand, creating an economic, environmental and supply chain risk scenario. To overcome those issues, phosphate sources recycled from wastewaters and sewage sludge merge as an alternative to conventional fertilizers, due to their agronomic potential use and renewable origins, reducing environmental impact while contributing to sustainable agriculture and circular economy. Struvite and hazenite are minerals recovered via chemical precipitation from wastewaters, while ashdec can be obtained through thermochemical treatment of sewage sludge ashes. Low water-solubility and late release, more aligned with plants demand, are common characteristics of these recycled fertilizers, what could improve the efficiency of P fertilization. Here, we evaluated the solubilization of struvite, hazenite ashdec and triple superphosphate (TSP), their P release dynamics and their impact on the solution pH and on soil P fractions through an incubation leaching columns experiment. We also assessed their agronomic potential and efficiency compared to TSP (chosen conventional source) through a greenhouse trial for two 90 days cycles of sugarcane (Saccharum spp.) under those phosphate sources and three P doses (30, 60 and 90 mg kg-1). Dry mass yield (DMY), biometric parameters, nutrient uptake and soil P fractions were analyzed for each harvest. Our findings showed that while the recycled sources are less water-soluble and promote late P release, solubilizing less P than TSP in the initial period, plants were able to improve P utilization from these sources, since struvite (both harvests) and hazenite (first cycle) outperformed, while ashdec was comparable to TSP in DMY and P uptake. In the first 90 d, all three recycled sources showed higher soil labile P levels than TSP, which was the only source increasing the non-labile pool by the end.O fósforo (P) é um elemento essencial para o metabolismo energético e produção de DNA/RNA nas plantas. No Brasil, elevadas quantidades de fertilizantes fosfatados são aplicadas anualmente nas áreas agrícolas para suprir a demanda das plantas, criando um cenário de risco económico, ambiental e de abastecimento. Para superar estas dificuldades, fontes fosfatadas recicladas de águas residuárias e lodo de esgoto surgem como uma alternativa aos fertilizantes convencionais, devido ao seu potencial de utilização agronômica e origens renováveis, reduzindo o impacto ambiental ao mesmo tempo que contribuem para a agricultura sustentável e uma economia circular. Estruvita e hazenita são minerais recuperados através da precipitação química das águas residuáriais, enquanto que o ashdec pode ser obtido através do tratamento termoquímico das cinzas de lodo de esgoto. Baixa solubilidade em água e liberação tardia, mais alinhada com a demanda das plantas, são características comuns destas fontes recicladas, que podem melhorar a eficiência da fertilização fosfatada. Neste trabalho, avaliamos a solubilização de estruvita, hazenita, ashdec e superfosfato triplo (TSP), suas dinâmicas de liberação de P e seus impactos no pH da solução e nas frações de P do solo através de um experimento de incubação em colunas de lixiviação. Também avaliamos seus potenciais e eficiências agronômicas em comparação com o TSP (fonte convencional escolhida), através de um ensaio em casa de vegetação durante dois ciclos de 90 dias de cana-de-açúcar (Saccharum spp.) sob essas fontes de fosfato em três doses de P (30, 60 and 90 mg kg-1). Para cada colheita, foram analisados o rendimento de massa seca (DMY), parâmetros biométricos, absorção de nutrientes e frações de P do solo. Nossos resultados mostraram que embora as fontes recicladas sejam menos solúveis em água e promovam a liberação tardia de P, com menor solubilização de P comparadas ao TSP no período inicial, as plantas foram capazes de melhorar a utilização de P a partir destas fontes, uma vez que a estruvita (ambas as colheitas) e a hazenita (primeiro ciclo) tiveram um desempenho superior, enquanto o ashdec foi comparável ao TSP em DMY e absorção de P. Nos primeiros 90 d, todas as três fontes recicladas mostraram níveis de P lábil do solo mais elevados do que o TSP, única fonte que a aumentar a concentração de P não-labial ao final do experimento.Biblioteca Digitais de Teses e Dissertações da USPPavinato, Paulo SergioRaniro, Henrique Rasera2021-07-13info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttps://www.teses.usp.br/teses/disponiveis/11/11140/tde-10092021-083907/reponame:Biblioteca Digital de Teses e Dissertações da USPinstname:Universidade de São Paulo (USP)instacron:USPLiberar o conteúdo para acesso público.info:eu-repo/semantics/openAccesseng2021-09-13T15:55:02Zoai:teses.usp.br:tde-10092021-083907Biblioteca Digital de Teses e Dissertaçõeshttp://www.teses.usp.br/PUBhttp://www.teses.usp.br/cgi-bin/mtd2br.plvirginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.bropendoar:27212021-09-13T15:55:02Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Phosphate sources derived from wastewater and sewage sludge: agronomic potential Fontes de fosfato derivadas de águas residuárias e lodo de esgoto: potencial agronômico |
title |
Phosphate sources derived from wastewater and sewage sludge: agronomic potential |
spellingShingle |
Phosphate sources derived from wastewater and sewage sludge: agronomic potential Raniro, Henrique Rasera Agronomic potential Águas residuárias Difusão de fósforo no solo Estruvita Liberação lenta Lodo de esgoto Phosphorus recycling Potencial agronômico Reciclagem de fósforo Sewage sludge Slow-release Soil phosphorus diffusion Struvite Wastewater |
title_short |
Phosphate sources derived from wastewater and sewage sludge: agronomic potential |
title_full |
Phosphate sources derived from wastewater and sewage sludge: agronomic potential |
title_fullStr |
Phosphate sources derived from wastewater and sewage sludge: agronomic potential |
title_full_unstemmed |
Phosphate sources derived from wastewater and sewage sludge: agronomic potential |
title_sort |
Phosphate sources derived from wastewater and sewage sludge: agronomic potential |
author |
Raniro, Henrique Rasera |
author_facet |
Raniro, Henrique Rasera |
author_role |
author |
dc.contributor.none.fl_str_mv |
Pavinato, Paulo Sergio |
dc.contributor.author.fl_str_mv |
Raniro, Henrique Rasera |
dc.subject.por.fl_str_mv |
Agronomic potential Águas residuárias Difusão de fósforo no solo Estruvita Liberação lenta Lodo de esgoto Phosphorus recycling Potencial agronômico Reciclagem de fósforo Sewage sludge Slow-release Soil phosphorus diffusion Struvite Wastewater |
topic |
Agronomic potential Águas residuárias Difusão de fósforo no solo Estruvita Liberação lenta Lodo de esgoto Phosphorus recycling Potencial agronômico Reciclagem de fósforo Sewage sludge Slow-release Soil phosphorus diffusion Struvite Wastewater |
description |
Phosphorus (P) is a nutrient essential for energy metabolism and DNA/RNA production in plants. In Brazil, high amounts of P fertilizers are applied onto agricultural fields every year to supply plants demand, creating an economic, environmental and supply chain risk scenario. To overcome those issues, phosphate sources recycled from wastewaters and sewage sludge merge as an alternative to conventional fertilizers, due to their agronomic potential use and renewable origins, reducing environmental impact while contributing to sustainable agriculture and circular economy. Struvite and hazenite are minerals recovered via chemical precipitation from wastewaters, while ashdec can be obtained through thermochemical treatment of sewage sludge ashes. Low water-solubility and late release, more aligned with plants demand, are common characteristics of these recycled fertilizers, what could improve the efficiency of P fertilization. Here, we evaluated the solubilization of struvite, hazenite ashdec and triple superphosphate (TSP), their P release dynamics and their impact on the solution pH and on soil P fractions through an incubation leaching columns experiment. We also assessed their agronomic potential and efficiency compared to TSP (chosen conventional source) through a greenhouse trial for two 90 days cycles of sugarcane (Saccharum spp.) under those phosphate sources and three P doses (30, 60 and 90 mg kg-1). Dry mass yield (DMY), biometric parameters, nutrient uptake and soil P fractions were analyzed for each harvest. Our findings showed that while the recycled sources are less water-soluble and promote late P release, solubilizing less P than TSP in the initial period, plants were able to improve P utilization from these sources, since struvite (both harvests) and hazenite (first cycle) outperformed, while ashdec was comparable to TSP in DMY and P uptake. In the first 90 d, all three recycled sources showed higher soil labile P levels than TSP, which was the only source increasing the non-labile pool by the end. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-07-13 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.teses.usp.br/teses/disponiveis/11/11140/tde-10092021-083907/ |
url |
https://www.teses.usp.br/teses/disponiveis/11/11140/tde-10092021-083907/ |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
|
dc.rights.driver.fl_str_mv |
Liberar o conteúdo para acesso público. info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Liberar o conteúdo para acesso público. |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
|
dc.publisher.none.fl_str_mv |
Biblioteca Digitais de Teses e Dissertações da USP |
publisher.none.fl_str_mv |
Biblioteca Digitais de Teses e Dissertações da USP |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações da USP instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Biblioteca Digital de Teses e Dissertações da USP |
collection |
Biblioteca Digital de Teses e Dissertações da USP |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
virginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.br |
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1809090590791434240 |