Conference proceedings

Displaying 31 - 40 of 51 in Soil and groundwater contamination and remediation (remove filter)

CEST Proceedings are published under the ISSN 2944-9820.

Data Visualization Techniques for Contaminated Site Investigation and Remediation

(Corresponding) Toskos T.
Topic: 
Soil and groundwater contamination and remediation
Site investigations and remedial actions generate large amounts of data. While tabulating the data is necessary for the purpose of satisfying reporting requirements and comparisons to standards, it does not allow us to understand and explore relationships in the data to obtain important information...Read more
Keywords: 
visualization, contamination, investigation
Conference: 
CEST2021
Paper ID: 
cest2021_00248

In-situ bioremediation of groundwater polluted with Cr(VI) under anaerobic conditions

Galani A., Anastopoulou P., Noutsopoulos C., (Corresponding) Mamais D.
Topic: 
Soil and groundwater contamination and remediation
The natural capacity of several microbes to reduce Cr(VI) to Cr(III) has been considered of much interest in order to remediate soil and groundwater polluted with Cr(VI). The objective of this work is to evaluate the enhancement of the activity of indigenous Cr(VI) reducing bacteria by the addition...Read more
Keywords: 
Hexavalent chromium, groundwater pollution, bioremediation, microcosm experiments, anaerobic conditions
Conference: 
CEST2021
Paper ID: 
cest2021_00281

CO2-Uptake Enhances Chromate Release from Fresh Chromium Ore Processing Residues (COPR)

(Corresponding) Lapp F., Brück F., Mansfeldt T., Dohrmann R., Göske J., Weigand H.
Topic: 
Soil and groundwater contamination and remediation
Chromium ore processing residue (COPR) still contains considerable chromate which can lead to groundwater contamination at uncontrolled dumpsites. The alkaline pH and presence of portlandite introduced in the high-lime roasting render COPR a potential CO2-trap. To assess whether this feeds back on...Read more
Keywords: 
COPR, Carbonation, Chromate, Leaching
Conference: 
CEST2021
Paper ID: 
cest2021_00294

Reductive Debromination of 1,2-dibromoethane and tribromoethylene by a Shrimp-Shell Biochar and Green Rust Composite

(Corresponding) Lindhardt J., Holm P., Lu C., Hansen H.
Topic: 
Soil and groundwater contamination and remediation
Simple brominated ethanes and ethylenes like 1,2-dibromoethane (DBA) and tribromoethylene (TrBE) are widespread, toxic contaminants and able to persist in soil and groundwater. Some of these compounds are used as intermediates in the production of resins and as wood preservatives. Previous uses...Read more
Keywords: 
Biochar, dibromoethane, green rust, pyrolysis, tribromoethylene, dehalogenation, debromination, abiotic remediation, post-pyrolysis treatment, activation
Conference: 
CEST2021
Paper ID: 
cest2021_00382

Groundwater Flow Dynamics in Shallow Coastal Plain Sands Aquifer, Abesan Area, Eastern Dahomey Basin, Southwestern Nigeria.

Joseph A.
Topic: 
Soil and groundwater contamination and remediation
Thirty hand-dug wells were identified and evaluated to study the groundwater flow dynamics and anionic species distribution in the study area. Topography and water table levels method with the aid of Surfer were adopted in the delineation of six recharge and discharge zones correspondingly...Read more
Keywords: 
groundwater flow, recharge, discharge, anionic species, Abessan.
Conference: 
CEST2021
Paper ID: 
cest2021_00623

Biodegradation of anthracene by an Antarctic fungal strain a member of genus Alternaria

Gerginova M., Stoyanova K., Peneva N., (Corresponding) Alexieva Z.
Topic: 
Soil and groundwater contamination and remediation
By the aim to characterize the ability of an isolated from Antarctic soils fungal strain termed Alternaria maritima AL10 to degrade anthracene as sole carbon sources at different temperature conditions (23°C and 10°C), research has performed. The results from GC-MS analysis have shown that the...Read more
Keywords: 
Alternaria maritima, biodegradation, anthracene, GC-MS
Conference: 
CEST2021
Paper ID: 
cest2021_00649

Preliminary assessment of groundwater Hydrogeochemistry in Kanye Area, SE Botswana

(Corresponding) Tafesse N., Mapeo R., Laletsang K., Segobaetso1 T.
Topic: 
Soil and groundwater contamination and remediation
A hydrogeochemistry study was conducted in Kanye region, located in south east of Botswana, to determine the main composition controlling mechanisms in the groundwater chemistry of the area. Groundwater samples were collected and analyzed. The samples were analyzed for major cations, anions and...Read more
Keywords: 
Botswana, Groundwater, Hydrogeochemistry, Hydrochemical facies, Kanye.
Conference: 
CEST2021
Paper ID: 
cest2021_00654

Groundwater recharge in Molepolole area, SE Botswana

(Corresponding) Tafesse N., Laletsang K., Mapeo R., Appia R.
Topic: 
Soil and groundwater contamination and remediation
Groundwater recharge estimation using chloride mass balance (CMB) method was conducted in Molepolole area, SE of Botswana. The study area is semi-arid area with uneven distribution of rainfall throughout the year. The mean annual rainfall of the area is 423.64 mm. Climatically the area is...Read more
Keywords: 
Aquifer, Groundwater recharge, Molepolole, Rainfall, Wellfield
Conference: 
CEST2021
Paper ID: 
cest2021_00658

Modelling the Evaporation Flux from Shallow Sandy Aquifers

(Corresponding) Al-Suwaiyan M.
Topic: 
Soil and groundwater contamination and remediation
A mathematical model based on Richard’s equation and the soil hydraulic properties was developed in order to understand the influence of the soil depth to the water table on the maximum potential evaporative flux through the unsaturated zone. The model was applied on shallow aquifers using...Read more
Keywords: 
Evaporation, vadoze zone, shallow water table
Conference: 
CEST2021
Paper ID: 
cest2021_00736

PFAS removal performance of novel technologies for treatment of firefighting water and groundwater

(Corresponding) Hjort M., Dalmijn J., Roest K., ter Laak T., Vaiopoulou E.
Topic: 
Soil and groundwater contamination and remediation
Per- and polyfluoroalkyl substances (PFAS) are a group of widely used man-made organic chemical substances. PFAS have been used because of their particular physicochemical properties: most are stable at high temperatures, recalcitrant to chemical oxidation and biological degradation, and act as a...Read more
Keywords: 
PFAS (per- and polyfluoroalkyl substances), treatment technologies, PFAS impacted groundwater, firefighting wastewater, comparative evaluation
Conference: 
CEST2021
Paper ID: 
cest2021_00761