Detecting Landfill Leachate Contamination Using Remote Sensors

Author : Rahul Sukharia
Publisher :
ISBN 13 :
Total Pages : 111 pages
Book Rating : 4.:/5 (992 download)

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Download or read book Vegetation Based Assessment and Monitoring Tools for Landfill Leachate Treatment and Fugitive Plumes written by Rahul Sukharia and published by . This book was released on 2017 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Solid waste and leachate generation from solid waste landfills has a legacy of detrimental and toxic impacts on the environment. Disposal practices are expensive, failure prone and have not been able to keep up with the pace of disposal of toxic compounds. In general, a landfill acts as a 'bathtub' with infiltration of water through the landfill cover into the landfill, reacting with the waste and transferring toxic components into the leachate. Irrigating the evapotranspiration (ET) covers with leachate collected from the landfill has been developed and applied. Such methods can keep the leached pollutants in a loop, which reduces the risk of leachate contamination of nearby aquifers. Utilizing trees and grasses on ET covers as a means of phytoremediation and stabilization of pollutants, while controlling erosion, is a step towards an efficient and sustainable remediation of landfill systems. Assessment of plant health and stress is critical for optimizing these systems and to avoid mortality of plants and total failure of phytotechnologies and phytoremediation systems. Leachate application rates should provide better treatment efficiency, but not cause toxicity. Hyperspectral measurements for monitoring plant health and stress were included in this study. Hyperspectral results revealed that plant stress can be sensed remotely, which correlates with destructive testing methods such as biomass measurements. This study provides multiple findings of importance in assessing plant stress while maintaining effective treatment, with low labor costs and the ability to cover large areas rapidly. This study also suggests that remote sensing can be applied to detect plant stress caused by fugitive leachate plumes, thereby mitigating the potential threat to human health and ecological damages from these plumes that would often go unnoticed"--Abstract, page iii.