Μελέτη της υδρόλυσης, της προσρόφησης και της διάσπασης των φυτοφαρμάκων methyl-parathion, lindane και atrazine σε φυσικά υποστρώματα (Doctoral thesis)

Αλμπάνης, Τριαντάφυλλος Α. Δ.


IN THIS WORK WE ATTEMPTED A STUDY OF THE MOST IMPORTANT FACTORS WHICH INFLUENCETHE FATE OF PESTICIDES METHYL-PARATHION, LINDANE AND ATRAZINE IN AQUATIC AND SOIL SYSTEMS. WE STUDIED THE KINETICS OF HYDROLYSIS OF THESE PESTICIDES IN RELATION WITH TEMPERATURE AND PH AND THE EXTENT OF ADSORPTION AND CATALYTIC DEGRADATION IN AQUATIC EMULSIONS OF SOILS FROM THESSALONIKI AND IOANNINA AREAS AS WELLAS OF MINERALS PHOSPHATE ORE, KAOLLINITE, FLY ASH, RED MUD AND Γ-ALUMINA. THE ABILITY OF THESE SOLID SUBSTRATES FOR ADSORPTION AND DEGRADATION WAS PROVED THAT IT DEPENDS ON THEIR CHEMICAL FORMATION AND THEIR BASIC PHYSICOCHEMICAL CHARACTERISTICS (PH, SPECIFIC SURFACE AREA, NUMBER OF ACID SITES AND THE ZERO POINT CHARGE). IN CONDITIONS AND IN EXPERIMENTS OF INVERSE GAS CHROMATOGRAPHY IT WAS SHOWED THAT THE THERMODYNAMIC PARAMETERS OF ADSORPTION OF PESTICIDES (-ΔΗ) AND (-ΔS) APPEAR A LINEAR DEPENDENCE WITH THE ZERO POINT CHARGE OF SOLID SUBSTRATES.THE SOIL PROPERTIES AS FAR AS THE MOST RAPID DETOXICATION OF PESTICIDE RESIDUES WAS IMPROVED WITH ADDITION OF SMALL AMOUNTS OF FLY ASH, WHICH HAS AN INCREASED ABILITY TO DEGRADATE THEIR MOLECULES. AT THE END THE PERSISTENT OF THESE THREE PESTICIDES WAS STUDIED IN NATURAL CONDITIONS ON FOUR CHARACTERISTICAL SOILS OF IOANNINA BASIN AND IT WAS SHOWED THAT THE PESTICIDE MOVEMENT ONTO THE SOIL ISCONTROLLED BY THE PHYSICAL TRANSPORTATION WITH THE RAINFALL WATERS.
Alternative title / Subtitle: A STUDY OF HYDROLYSIS ADSORPTION AND DEGRADATION OF PESTICIDES METHYL-PARATHION, LINDANE AND ATRAZINE ON NATURAL SUBSTRATES
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων Σχολή Θετικών Επιστημών Τμήμα Χημείας
Subject classification: Φυτοφάρμακα
Περιβαλλοντικές απόψεις
Keywords: Βιομηχανικά υποπροϊόντα,Διάσπαση,Έδαφος,Ορυκτά,Προσρόφηση,Υδρόλυση,Φυτοφάρμακα
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/420
Link: http://thesis.ekt.gr/thesisBookReader/id/0499#page/1/mode/2up
Appears in Collections:Διδακτορικές Διατριβές

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