Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Phytoextraction"”.
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Phytoextraction of heavy metal from contaminated soils using genetically modified plants
The use of plants to clean-up soils contaminated with trace elements could provide a cheap and sustainable technology for phytoremediation. The introduction of novel traits into plants that produce high levels of biomass using a transgenic approach is a promising strategy for the development of …
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Chemically Induced Phytoextraction of Lead (Pb) Contaminated Soil by Switchgrass (Panicum virgatum L.)
… create an environmental and human health risk. Phytoextraction through chemical acquisition of Pb in soils offer a potentially cost effective and ecologically driven approach to remediation. Switchgrass (<em>Panicum virgatum </em>L.) is known to have a tolerance for a wide range of heavy metals …
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Assessing the Phytoextraction of Organic and Inorganic Pollutants From Point Pelee National Park, Ontario and Iqaluit, Nunavut
This thesis investigated the phytoextraction of both organic and inorganic contaminants from two locations of Canada (Point Pelee National Park (PPNP), Ontario and Iqaluit, Nunavut). PPNP is a National Park that is highly contaminated with dichlorodiphenyltrichloroethane (DDT), dieldrin, arsenic …
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Chemically Induced Phytoextraction of Lead (Pb) Contaminated Soil by Switchgrass (Panicum virgatum L.), assisted with BAP and NTA applications
… deposits in soil is a growing global concern. Phytoextraction of Pb-contaminated soil can be enhanced by soil chelation to increase the bioavailability of Pb. In the initial study nitrilotriacetic acid (NTA) 5mM, the alkylpolyglucoside (APG) Triton X-100 (2%), and nano-silica were applied to …
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Phytoextraction of Lead from Contaminated Urban Soils by Panicum virgatum Enhanced with Phytohormone, EDTA, Benomyl, and Citric Acid Application
… or environmentally disruptive techniques. Phytoextraction has gained attention as a possible alternative to traditional remediation methods because of lower cost and minimal soil disruption. <em>Panicum virgatum </em>L. (switchgrass) was chemically enhanced with applications of the …
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Induced Phytoextraction of Lead from Contaminated Soils by Panicum virgatum, Enhanced with EDTA, Citric Acid, Benomyl, Propiconazole and Nitric Oxide
… expensive and risk further environmental damage. Phytoextraction has emerged as an alternative heavy metal remediation method with the potential for reducing both economic cost and negative environmental effects. For this study, North American native switchgrass (<em>Panicum virgatum</em>) was …
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Induced Phytoextraction of Lead from Contaminated Urban Soil Through Manipulation of Rhizosphere and Plant Biogeochemical Functions in Switchgrass (Panicum virgatum)
… amount of Pb and alleviate risk to human health. Phytoextraction of Pb through chemically induced accumulation of Pb in the harvestable foliage and removal of contaminated plant material has great potential in offering a solution to this environmental problem. The effects of the combined …
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Biochelators as an alternative to EDTA and other synthetic chelators for the phytoextraction of heavy metals (Cu, Cd, Pb) from soil
… the use of plants to extract metals from soil (Phytoextraction) has repeatedly been suggested as a novel clean-up technology. Phytoextraction using hyperaccumulator plants is usually limited by low biomass, whereas metal uptake by high biomass plants usually suffers from low phytoavailability of …
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Wetland and terrestrial phytoremediation of an end-of-life municipal lagoon using cattail (Typha spp.)
… biomass and nitrogen (N) and phosphorus (P) phytoextraction from biosolids in (i) a wetland constructed in the former primary cell and (ii) a dewatered secondary cell of an end-of-life municipal lagoon. Overall, the phytoextraction of N and P by cattail was lower with a single harvest than …
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Plant uptake study : the hyperaccumulating and remediating potential of three plant species
… plants could be used for phytostabilization and phytoextraction of selenium, however the plants were not hyperaccumulators. Additional studies including the use of chelating agents such as EDTA which have been shown to increase metal translocation into plant tissue thereby improving overall …
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Combining phytoremediation with bioenergy production; exploring options for sustainable remediation
… and bioenergy production. Greenhouse phytoextraction studies were carried out using sunflower plants in pots and the effect of plant growth promoting bacteria, Bacillus aryabhattai on growth and phytoextraction effectiveness was investigated. Sunflower plants were found to be largely …
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Bioprospecting of plants species with potential to uptake inorganic chemical species from gold mine tailings and acid mine drainage
… of plants species with potential for use phytoextraction of inorganic chemical species from the acidic leachates and gold mine tailings. The physicochemical parameters of leachates such as pH, electrical conductivity (EC), redox potential (Eh), total dissolved solids (TDS), dissolved …
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The role of phytotechnology in the rehabilitation of the BHPBilliton Cannington Ag-Pb-Zn mine
… vegetation covers and chemically-assisted phytoextraction) as environmental tools to manage mine tailings and soil contaminated with mine tailings at the BHPBilliton Cannington Ag-Pb-Zn Mine. The study was conducted in accordance with the mine's Environmental Management Overview System …
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Physiology and Biochemistry of Lead Accumulation in Sesbania Drummondii
… with a large-biomass Pb accumulator plant in a phytoextraction strategy. In the second set of experiments, seedlings of Sesbania drummondii were exposed to 500 mg/L Pb(NOs)2 in presence and absence of EDTA, DTPA and HEDTA for 7-28 days. Plants were assayed for metal-induced stress, which was …
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Phytoremediation of Sembrong River waters using neptunia oleracea and pistia stratiotes
… plants could be used for phytostabilization and phytoextraction of Al and Fe. However, the plants were not hyperaccumulators of Zn. Using photomicrography transverse sections of plant tissues cultivated in river water showed toxic symptoms like distortion, increase in the number of layers of …
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Assessment of gentle remediation options for trace element-contaminated agricultural land under semi-controlled and field conditions
… with phytoexclusion (chapter 2), (ii) labile TE phytoextraction (chapter 3), and (iii) (aided) phytostabilization (chapter 4.2). Soil remediation by GRO was assessed with scientifically established (DGT, soil solution; chapter 4.1) and/or legally relevant chemical soil extractions …
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Adaptability, Biomass Yield, and Phytoremediation of Arundo donax L. on marginal lands: salt, dry and lead-contaminated soils
… Arundo plants are not hyperaccumulators, high phytoextraction yields can be achieved in contaminated soils, due to a conjugation of phytotolerance and high yields. This allows us to consider that Arundo can be more efficient than certain hyperaccumulator plants but with very low yields. On the …
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