Publications by authors named "M A Naeth"

Reclamation of disturbances from oil sands mining requires effective soil management to ensure successful plant establishment and to promote recovery of native plant communities. In this study we investigated the effects of salvage depths (shallow vs. deep) and placement depths (shallow vs.

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Process affected water and other industrial wastewaters are a major environmental concern. During oil sands mining, large amounts of oil sands process affected water (OSPW) are generated and stored in ponds until reclaimed and ready for surface water discharge. While much research has focused on organics in process waters, trace metals at high concentrations may also pose environmental risks.

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Article Synopsis
  • Oil sands process affected water (OSPW) contains high levels of trace metals, prompting the need for effective treatment methods using constructed wetlands.
  • This study explored the effects of adding carbon-based amendments and different wetland plant species on the removal of various metals, revealing that plant species significantly impacted metal removal efficiency, while amendments alone were less effective.
  • The results showed that Carex aquatilis was the most effective plant for removing metals, achieving removal rates between 78.61% and 96.31%, while demonstrating that most metals accumulated in roots rather than being transported to shoots.
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Increasing pressures on land resources requires increased land use efficiency. Over 900 million ha of sandy soils throughout the world are extensively used for agricultural crop production, most requiring nutrient inputs. Although use of humic substances together with inorganic fertilizer as soil amendments has been introduced, their synergistic effects on plant growth in sandy soils are not well addressed.

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Phosphogypsum (PG) is a by-product of phosphorus fertilizer that is typically stacked near production sites. Phosphogypsum contains trace elements and naturally occurring radioactive materials which may be hazardous to the surrounding environment. Phosphogypsum stack reclamation typically involves placing a soil cap and seeding grass to create a barrier for reducing environmental impacts; using woody species is uncommon.

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