Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Erika Winquist Name of the doctoral dissertation The potential of ligninolytic fungi in bioremediation of contaminated soils Publisher School of Chemical Technology Unit Department of Biotechnology and Chemical Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 54/2014 Field of research Bioprocess Eng...

Phytoremediation is a promising method for remediation of heavy metals (HMs) contaminated environments. However, the main failures are the limited bioavailabilty of HMs such as lead (Pb) in the soil and/or suppressed plant growth in contaminated sites. These limitations specifically occur in semi-arid zone environments such as calcareous soils. Arbuscular mycorrhizal fungi (AMF) and plant growt...

Lead contamination is of great concern because of its adverse effects on human health, especially children. This research evaluated the effects of phosphate rock on chemical associations of Pb in eight Pb-contaminated soils using a sequential extraction procedure. The chemical fractions are operationally defined by an extraction sequence in the order of increasing ability to dissolve Pb of lowe...

Citation: Kaneko M, Iwata H, Shiotsu H, Masaki S, Kawamoto Y, Yamasaki S, Nakamatsu Y, Imoto J, Furuki G, Ochiai A, Nanba K, Ohnuki T, Ewing RC and Utsunomiya S (2015) Radioactive Cs in the severely contaminated soils near the Fukushima Daiichi nuclear power plant. Front. Energy Res. 3:37. doi: 10.3389/fenrg.2015.00037 Radioactive Cs in the severely contaminated soils near the Fukushima Daiichi...

Much research has focused on changes in solubility and mobility of trace metals in soils under incubation. In this experiment, changes in solubility and mobility of trace metals (Pb, Cu and As) and Fe in two contaminated soils from Tampa, Florida and Montreal, Canada were examined. Soils of 30 g were packed in columns and were incubated for 3-80 days under water-flooding incubation. Following i...

This work investigated development of operating envelopes for stabilisation/solidification (S/S) treatment, and facilitation of biodegradation within S/S treated contaminated soils, with the aim of improving the robustness and sustainability of S/S technology. The ‘process envelopes’ study utilised different conventional cementitious binders for treatment of contaminated soil, and generated ext...

The U.S. Environmental Protection Agency (EPA) has been working toward the establishment of treatment standards for contaminated soils. The Office of Emergency and Remedial Response is in the process of developing and carrying out a plan to address the data needs for establishing the Pest Demonstrated Available Technologies (BDAT) for Superfund soils. The BDAT program is divided into phases. Ph...

In situ chemical oxidation is a commonly applied soil and groundwater remediation technology, but can have significant effects on soil properties, which in turn might affect fate and transport of organic contaminants. In this study, it was found that oxidation treatment resulted mainly in breakdown of soil organic matter (SOM) components. Sorption of naphthalene and phenanthrene to the original...

There are numerous Cr(III)-contaminated sites on Department of Defense (DoD) and Department of Energy (DOE) lands that are awaiting possible clean up and closure. Ingestion of contaminated soil by children is the risk driver that generally motivates the likelihood of site remediation. The purpose of this study was to develop a simple statistical model based on common soil properties to estimate...

One DDT-contaminated soil and two uncontaminated soils were used to enumerate DDT-resistant microbes (bacteria, actinomycetes and fungi) by using soil dilution agar plates in media either with 150 mg DDT ml−1 or without DDT at different temperatures (25, 37 and 55◦C). Microbial populations in this study were significantly (p<0.001) affected by DDT in the growth medium. However, the numbers of m...