Soil and groundwater contamination and remediation

[CEST2019_00918] A pilot test in Eastern Bohemia for chlorinated aliphatic hydrocarbons groundwater remediation
by Silvestri D., Wacławek S., Stejskal V., Vlkova D., Kvapil P., Kohout P., Hrabak P., Černík M.

The bioremediation of chlorinated solvents is considered as cheap and eco-friendly approach, among the bioremediation techniques the stimulation of organohalide-respiring bacteria by adding substrates is considered as one of the most popular methods. Application of cheese whey was performed in three separate rounds via direct-push technique. Monitoring of groundwater was performed once before the first injection of cheese whey in November 2017 and then monthly until April 2019.

Session: 9, Room: C, at Thu, 09/05/2019 - 13:12 to 13:15
Flash presentation in Soil and groundwater contamination and remediation
[CEST2019_00815] Cooperation of bacteria and fungus on polycyclic aromatic hydrocarbons degradation
by Vrchotová B.,Danda M., Lovecká P.

Polycyclic aromatic hydrocarbons are diverse family of hydrophobic organic pollutants. They can be removed from environment by bacterial degradation. One of the process which could limit biodegradation is transfer of hydrophobic contaminants in to aqueous phase were degrading microorganisms live. In this work we would like to evaluate possible role of fungi in increasing transport of hydrophobic pollutants such as polycyclic aromatic hydrocarbons in to the aqueous phase.

Session: 9, Room: C, at Thu, 09/05/2019 - 13:00 to 13:03
Flash presentation in Soil and groundwater contamination and remediation
[CEST2019_00817] Origin of Cr in alluvial sediments and ultramafic rocks in Sultanate of Oman. Magnetic fractionation and sunlight effect.
by Moraetis D., Al-Suhai A.S., Pyrgaki K., Argyraki A., Dermatas D.

The present study attempts to identify the sources of Cr(VI) in a coastal alluvial fan soil and soil from a chromite mine. In addition investigates the effect of photochemically oxidized organic matter in the Cr(VI) mobilization in soil. The alluvial bulk soil samples contain several evidence of weathered products of the ophiolite nappe like serpentine and amphiboles. For better characterization we separated different soil fractions with magnetic separation. The results showed that magnetic fraction exhibits high amount of serpentine.

Session: 9, Room: C, at Thu, 09/05/2019 - 13:03 to 13:06
Flash presentation in Soil and groundwater contamination and remediation
[CEST2019_00818] Quntitative PCR as a tool for analysis of diversity in soil microbiome
by Macurkova A., Drobnikova T., Maryska L., Jindrichova B., Burketova L., Siegel J., Valentova O., Lovecka P.

Majority of terrestrial soils are used primarily for agricultural production. The main factor of soil fertility is mediated by soil microorganisms and invertebrates. Soil microorganisms plays crutial role in ecosystems nutrient cycling and therefore any change in their diversity could have serious consequences on soil fertility and agricultural yields. Silver nanoparticles as novel potentialy nontoxic compounds are nowadays used in many daily use products and also as pesticides. But based on their antimicrobial activity, they can adversely influence structure of soil microbiome.

Session: 9, Room: C, at Thu, 09/05/2019 - 13:06 to 13:09
Flash presentation in Soil and groundwater contamination and remediation
[CEST2019_00819] Complex approach for analysis of changes in soil microbiome
by Macurkova A., Drobnikova T., Maryska L., Jindrichova B., Burketova L., Siegel J., Valentova O., Lovecka P.

In the few past decades, genetic approaches for analysis of soil microbiome, e.g pyrosequencing, gained major attention and cultivation techniques were pushed into the background. The combination of several techniques could be useful and cheap approach for analysis of changes in soil microbiome. In our study of effect of silver nanoparticles on soil microbiome we exploited classical microbiological and biochemical methods for assessment of microbial structure.

Session: 9, Room: C, at Thu, 09/05/2019 - 13:09 to 13:12
Flash presentation in Soil and groundwater contamination and remediation
[CEST2019_00603] In-Situ Removal of Antibiotics in Soil by Cold Plasma
by Hatzisymeon M., Tataraki D., Rassias G., Aggelopoulos C.

Cold atmospheric plasma (CAP) was examined for the remediation of antibiotic ciprofloxacin-polluted soil. Experiments were conducted in two different electrode configurations of dielectric barrier discharge (DBD) reactors (i.e. cylinder-to-cylindrical grid and plane-to-grid) driven by a high voltage nanosecond pulse generator. The aforementioned DBD reactor configurations correspond to ex-situ and in-situ soil remediation, respectively.

Session: 9, Room: C, at Thu, 09/05/2019 - 12:30 to 12:45
Oral presentation in Soil and groundwater contamination and remediation
[CEST2019_00628] Isolation and optimization of microbial consortia for the biodegradation of two persistent fluorinated fungicides
by Alexandrino D.A.M., Mucha A.P., Almeida C.R.M., Carvalho M.F.

Microbial consortia capable of completely removing and defluorinating two persistent fluorinated fungicides, epoxiconazole (EPO) and fludioxonil (FLU), were enriched from an estuarine sediment and an agriculture soil. The enrichments were conducted along 6 months, during which the fungicides were supplemented individually to the cultures every 21 days at 5 mgL-1, using sodium acetate as a co-metabolite (fed twice a week at 400 mgL-1). Biodegradation of EPO and FLU was detected early on the enrichment phase and a gradual increase on their performances was observed throughout this period.

Session: 9, Room: C, at Thu, 09/05/2019 - 11:30 to 11:45
Oral presentation in Soil and groundwater contamination and remediation
[CEST2019_00577] Lessons from long-term field phytostabilisation studies
by Siebielec G., Siebielec S., Stuczynski T., Sugier P.

Smelter waste deposits or soils near smelters that are heavily polluted pose a threat to environment and human health worldwide. There is limited availability of long-term phytostabilization field studies evaluating and documenting persistence of tested remediation methods. The paper combines experience from greenhouse testing of most effective soil amendments and long-term field experiments aimed at optimizing phytostabilisation of toxic smelter waste deposits.

Session: 9, Room: C, at Thu, 09/05/2019 - 12:00 to 12:15
Oral presentation in Soil and groundwater contamination and remediation
[CEST2019_00572] Geochemical modelling as a tool to investigate chromium contamination in groundwater
by Apollaro C., Fuoco I.

Geochemical modelling is an essential tool to understand the water-rock interaction processes. In this work has been used the reaction path modelling to investigate the release and fate of geogenic Cr in ophiolitic Italian areas. During the water-rock interaction the geogenic trivalent Cr hosted in Cr-bearing minerals (serpentine minerals, spinels, pyroxene, etc.) of serpentinites rocks is oxidized in Cr (VI) highly toxic, resulting largely dangerous for environment and human health.

Session: 3, Room: C, at Thu, 09/05/2019 - 10:15 to 10:30
Oral presentation in Soil and groundwater contamination and remediation
[CEST2019_00530] Technology Critical Elements in industrial wastes as the source of soil contamination
by Rachwał M., Jabłońska-Czapla M.,Grygoyć K., Fornalczyk A.,Willner J.

The intensive development of industry, especially the mining and metallurgy, automotive and electrical industries, affects the increasing amount of Potentially Toxic Elements (PTE), including Technology Critical Elements (TCE) in the environment. This preliminary study focuses on the following TCE: Ga, Ge and Tl. The main thing they have in common is that they have not been much studied and the level of knowledge concerning the environmental impact of their use is quite slight.

Session: 3, Room: C, at Thu, 09/05/2019 - 10:30 to 10:33
Flash presentation in Soil and groundwater contamination and remediation
[CEST2019_00500] Groundwater quality and hydrogeochemical characterization of Khetri copper mining region, India
by Punia A., Siddaiah N.S., Bharti R.

The impact of copper mine on groundwater quality in the semi-arid region is evaluated, and also characterized for hydrogeochemical processes. Groundwater samples (post monsoon and pre monsoon) from Khetri copper mine region of Rajasthan, India were studied. In majority of groundwater samples, the values of analyzed parameters such as EC, Ca2+, Mg2+, Na+, HCO3- and Cl- exceed the WHO (2011) and Bureau of Indian Standards (2012) permissible limits.

Session: 3, Room: C, at Thu, 09/05/2019 - 10:36 to 10:39
Flash presentation in Soil and groundwater contamination and remediation
[CEST2019_00481] Origin of the salinity in the groundwater of the El Attaf alluvial aquifer
by Richa A., Touil S., Djezzar M., Douaoui A.

The choice of this research theme was guided by the desire to better understand environmental issues, namely salinity and its origin, through the use of geophysical data from various surveys carried out between 1969 (CGG) and 2002 (IFES), to highlight the impact of the geological and structural upheavals that occurred during the earthquake of October 10, 1980, on the hydrodynamic processes. The interpretation of the resistivity data revealed that water salinity is highly variable and generally high near Jebel Temoulga. Chemical analyzes of all wells in the region confirm this.

Session: 3, Room: C, at Thu, 09/05/2019 - 10:33 to 10:36
Flash presentation in Soil and groundwater contamination and remediation
[CEST2019_00463] Per-and polyfluoroalkyl substances (PFAS): an emerging contaminant
by Toskos T., Panagiotakis I.,Dermatas D.

PFAS compounds are ubiquitous in the environment and in consumer products. Unlike other emergent contaminants this is a family of compounds with, literally, thousands members. Our knowledge of toxicological and environmental fate and transport properties is an evolving field. On the other hand, regulatory limits (when they exist) are extremely low and address only a limited handful of compounds. Because of their physical-chemical properties there are unconventional migration pathways, such as sewer exfiltration and biosolids residuals, that complicate site assessment and site closure.

Session: 9, Room: C, at Thu, 09/05/2019 - 11:45 to 12:00
Oral presentation in Soil and groundwater contamination and remediation
[CEST2019_00208] Bioaugmentation process for PAHs contaminated soil remediation through microbial inocula from anaerobic treatment of lignocellulosic substrate
by Ferraro A., Massini G., Mazzurco Miritana V., Panico A., Pontoni L., Race M., Rosa S., Signorini A., Fabbricino M., Pirozzi F.

In the present work, an anaerobic bioremediation treatment was investigated for reclamation of polycyclic aromatic hydrocarbons (PAHs) contaminated soil. The PAHs contaminated soil was artificially prepared and seven different contamination conditions were tested. In particular, four soils were contaminated solely by naphthalene (A), anthracene (B), pyrene (C) and benzo[a]pyrene (D), respectively, whereas, three soils were contaminated by benzo[a]pyrene coupled with one of the other investigated PAHs (i.e. A+D, B+D, and C+D tests).

Session: 9, Room: C, at Thu, 09/05/2019 - 12:45 to 13:00
Oral presentation in Soil and groundwater contamination and remediation
[CEST2019_00155] Thermal degradation of perfluorooctanoic acid (PFOA)
by Stockenhuber S., Weber N., Dixon L., Lucas J., Grimison C., Bennett M., Stockenhuber M., Mackie J., Kennedy E.,

Per - and polyfluoroalkyl substances (PFAS) are a group of environmental contaminants, that are dispersed throughout the world. A number of areas have been affected by their persistence and biomagnification. PFAS remediation of contaminated material requires extensive knowledge of the species involved. A method to simplify the study of the thermal degradation of PFAS is presented in this paper, providing a solution to experimental and analytical challenges. A three-zone furnace allowed manipulation of both reaction temperature and gas flowrate (and consequently residence time).

Session: 3, Room: C, at Thu, 09/05/2019 - 09:45 to 10:00
Oral presentation in Soil and groundwater contamination and remediation
[CEST2019_00159] Thermal Decomposition of Chlorpyrifos - an Experimental Investigation
by Weber N., Stockenhuber S., Dixon L., Lucas J., Grimison C., Stockenhuber M., Mackie J., Benhelal E.,Kennedy E.

Organophosphate compounds are a group of chemicals that are commonly used in pest control. One widely used organophosphate is chlorpyrifos (CPF), which has been associated with acetylcholinesterase inhibition (AChE), an acute neurotoxin. Further, under thermal decomposition conditions, such as those that occur in bushfires, CPF has been shown to produce a dioxin-like compound 2,3,7,8-tetrachloro-[1,4]-dioxinodipyridine (TCDDpy). To assist in understanding the reaction of CPF, an experimental methodology was developed which enabled the study of its thermal decomposition.

Session: 3, Room: C, at Thu, 09/05/2019 - 10:00 to 10:15
Oral presentation in Soil and groundwater contamination and remediation
[CEST2019_00113] Screening of polar pesticides in groundwater in Hebei Province, China
by Huang Y.,Guo X., Rao Z., Yang Z., Liu C., Shi Z.

As a big agricultural country,China has a relatively high pesticide usage in unit area , which is three times higher than developed countries. About 80% of pesticides directly enter the soil and the water through leaching or surface runoff during the usage of pesticides. In particular, some of the polar compounds are easier to migrate than other compounds, causing pollution of surface water and groundwater.

Session: 3, Room: C, at Thu, 09/05/2019 - 09:30 to 09:45
Oral presentation in Soil and groundwater contamination and remediation
[CEST2019_00116] Analysis of hydrochemical time series
by Kolarec B., Žeravica A.

Agricultural activity of spreading fertilizers may, in case they are washed away to an aquifer, result in a groundwater contamination. There was a research conducted in Croatia on the lower part of the Danube-Sava canal which is occupied by extensive agricultural production to measure the groundwater pollution by nitrate nitrogen, ammonia nitrogen and phosphate. Amounts of these nutrients were measured six times per year over the period of fifteen years (2004.-2018.) by installed hydrogeological piezometers.

Session: 9, Room: C, at Thu, 09/05/2019 - 12:15 to 12:30
Oral presentation in Soil and groundwater contamination and remediation