Formy fosforu v říčních sedimentech
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Vysoké učení technické v Brně. Fakulta stavební
Abstract
Hlavními mechanismy ukládání fosforu v sedimentech je srážení málo rozpustných fosforečnanů Ca, Mg, Fe, Al a sorpce. Fosfor může být sedimentován také ve formě organického fosforu obsaženého v biomase. Obsahem práce je vyhodnocení souvislosti mezi celkovým, organickým a anorganickým fosforem a obsahem železa, vápníku a organických látek v říčních sedimentech. V rámci práce byl proveden odběr vzorků, jejich zpracování a analýza. Data jsou doplněna o již naměřená data Ústavu chemie z let 2011-2012. Celkem je zahrnuto 48 vzorků. Data byla statisticky vyhodnocena dle Studentova t-testu pro hladinu významnosti = 0,05 a = 0,01. Byla prokázána závislost celkového fosforu na obsahu železa a organických látek. Projevila se také závislost organického fosforu na množství organických látek a překvapivě i na koncentraci železa. Anorganický fosfor indikuje závislost na železe, ale žádná prokazatelná závislost se neprojevila u vápníku. Ukázala se také korelace mezi anorganickým fosforem a obsahem organických látek.
Two main mechanism of immobilization of phosphorus in sediments are formation of insoluble phosphates of Ca, Mg, Fe, Al, and sorption. Phosphorus can be also immobilized as organic phosphorus contained in the biomass. This thesis is focused on searching of relationships between total, organic and inorganic phosphorus and iron, calcium and organic matter content in fluvial sediments. Within the framework of this thesis, samples of sediments have been collected and analyzed. The measured values have been filled by the data measured at the Institute of Chemistry in the years 2011-2012. Total number of samples is 48. Data have been statistically analyzed by Student’s t-test at the = 0,05 and = 0,01 levels of significance. The relationships between total phosphorus and iron and organic matter have been proven. Also the relationship between organic phosphorus and organic matter content has been proven and surprisingly the correlation with iron, too. The inorganic phosphorus indicated significant relationship with iron, but no significant relationship with the calcium content. At last there has been proven the correlation between inorganic phosphorus and the organic matter content.
Two main mechanism of immobilization of phosphorus in sediments are formation of insoluble phosphates of Ca, Mg, Fe, Al, and sorption. Phosphorus can be also immobilized as organic phosphorus contained in the biomass. This thesis is focused on searching of relationships between total, organic and inorganic phosphorus and iron, calcium and organic matter content in fluvial sediments. Within the framework of this thesis, samples of sediments have been collected and analyzed. The measured values have been filled by the data measured at the Institute of Chemistry in the years 2011-2012. Total number of samples is 48. Data have been statistically analyzed by Student’s t-test at the = 0,05 and = 0,01 levels of significance. The relationships between total phosphorus and iron and organic matter have been proven. Also the relationship between organic phosphorus and organic matter content has been proven and surprisingly the correlation with iron, too. The inorganic phosphorus indicated significant relationship with iron, but no significant relationship with the calcium content. At last there has been proven the correlation between inorganic phosphorus and the organic matter content.
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SCHRIMPELOVÁ, K. Formy fosforu v říčních sedimentech [online]. Brno: Vysoké učení technické v Brně. Fakulta stavební. 2013.
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cs
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Vodní hospodářství a vodní stavby
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2013-06-11
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práce byla úspěšně obhájena
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Standardní licenční smlouva - přístup k plnému textu bez omezení