عنوان :
تاثير اسيدهيوميك بر گياه پالايي خاك هاي آلوده به هيدروكربن هاي نفتي
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان
صفحه شمار :
سيزده، 91ص.: مصور، جدول، نمودار
استاد راهنما :
مجيد افيوني
استاد مشاور :
حسين شريعتمداري
توصيفگر ها :
اسيدهيوميك , هيدروكربن نفتي , گياه پالايي , آبگريزي , رس قابل پراكنش , ويژگي هاي هيدروليكي خاك
استاد داور :
محمدعلي حاج عباسي، مريم حقيقي
تاريخ ورود اطلاعات :
1398/06/05
رشته تحصيلي :
مهندسي كشاورزي
تاريخ ويرايش اطلاعات :
1398/06/05
چكيده انگليسي :
Effect of humic acid on phytoremediation of petroleum hydrocarbons contaminated soils Mohammad Shahi M shahi@ag iut ac June 30 2019 Department of soil science Isfahan University of Technology Isfahan 84156 83111 IranDgree M Sc Language Farsi1st Supervisor Majid Afyuni Afyuni@cc iut ac irAbstractPetroleum hydrocarbons pollution are considered as a threat to human health There are physicaland chemical methods to remediation of petroleum hydrocarbons from soil that in addition to highcosts and environmental impact require special equipment and high energy The objective of thisstudy was to determine the effect of humic acid on corn growth and phytoremediation of TPHs Weused a humic acid extracted from sewage sludge and a commercial humic acid Humax Threeconcentrations for each humic acid 0 5 1 and 2 g kg and three TPH contaminations 1 2 and 5percent contamination were used This experiment was conducted in a completely factorial designwith three replications Corn plants were harvested 16 weeks after cultivation Corn yield roots andsheets and plant chlorophyll content decreased significantly with increasing TPH concentration Dispersible clay content of soil and water repellency increased and bulk density and soil structuralstability decreased with increasing the TPH concentration Corn yield increased significantly withincreasing 1 gr kg humic acid Water repellency and dispersible clay content significantly decreasedwith increasing humic acid in the TPH contaminated treatments The soil TPH concentrationdecreased by 31 19 to 55 66 during the 16 weeks of the growth The removal of oil pollution wasincreased with the addition of humic acid between 7 62 to 33 72 for sewage sludge humic acidand humax respectively The efficiency of treatments for the removal of TPH were as follows sewage sludge humic acid 1 g kg sewage sludge humic acid 0 5 g kg sewage sludge humic acid2 g kg humax 0 5 g kg humax 1 g kg humax 2 g kg Key word Humic acid TPH concentration Bioremediation Water repellency Dispersible clay content Soilhydraulic properties
استاد راهنما :
مجيد افيوني
استاد مشاور :
حسين شريعتمداري
استاد داور :
محمدعلي حاج عباسي، مريم حقيقي
