Characterization of regional cold-hydrothermal inflows enriched in arsenic and associated trace-elements in the southern part of the Duero Basin (Spain), by multivariate statistical analysis

Giménez-Forcada, Elena; Vega, Marisol; Timón-Sánchez, Susana

doi:10.1016/j.scitotenv.2017.03.071

Cited by 20 publications

(10 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, wasted electrolyte with a high concentration of arsenic is produced abundantly in copper and lead-zinc electrolyte processes [ 8 , 9 ]. At present, there are many treatment methods for arsenic-containing wastewater, such as precipitation, adsorption, and biological methods [ 10 , 11 , 12 , 13 , 14 ]. However, such wastewater is usually treated with sodium sulfide, sodium hydrosulfide or hydrogen sulfide to precipitate arsenic, and the deposition of arsenic sulfide residue (ASR) is then engendered [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Treatment of Arsenic Sulfide Residues from Arsenic-Bearing Acid Wastewater

Yao

Min

et al. 2018

IJERPH

View full text Add to dashboard Cite

Arsenic sulfide residue (ASR), a by-product from the treatment of arsenic-bearing acidic wastewater, is abundantly generated but not properly disposed of in China. The utilization of such high-content arsenic waste residue is limited by the market. The traditional methods of stabilization/solidification (S/S) by lime cement or iron salt have a large mass/volume addition, high dumping cost and secondary pollution risk. In this paper, hydrothermal technology was used to treat three kinds of ASRs obtained from different smelters to minimize waste. The leaching toxicity and chemical speciation of the generated products was also evaluated by TCLP and BCR analyses. It was found that the hydrothermal treatment could greatly reduce the volume and moisture content of the ASRs. TCLP tests showed that the leachability of arsenic and heavy metals significantly decreased after the treatment. According to the BCR analysis, most of the unstable As, Cd and Cr transformed into a residual fraction. Finally, XRD, SEM, Raman and XPS techniques were carried out to reveal the mechanism. As a result, hydrothermal treatment can efficiently achieve the dehydration, volume reduction and stabilization/solidification of ASRs.

show abstract

Section: Introductionmentioning

confidence: 99%

Hydrothermal Treatment of Arsenic Sulfide Residues from Arsenic-Bearing Acid Wastewater

Yao

Min

et al. 2018

IJERPH

View full text Add to dashboard Cite

show abstract

“…Trace element concentrations and ratios are usually employed as indicators to evaluate the paleo-sedimentary environment (Gimenez-Forcada et al, 2017). Shen et al (1983) and Zheng et al (2005) uncovered the relationship between paleo-sedimentary environment and radioactive trace elements, which could be described as the contents of U and Th increasing with decreasing hydrodynamic intensity.…”

Section: Sedimentary Environment and Bulk Mineralogymentioning

confidence: 99%

Shale Gas Reservoir Evaluation by Geophysical Measurements: A Case Study of the Upper Ordovician–Lower Silurian in the Fenggang Block, Northern Guizhou Province

Xia

Guo

et al. 2021

Acta Geologica Sinica (Eng)

View full text Add to dashboard Cite

With the aid of geophysical measurements, including seventeen two‐dimensional (2D) seismic lines and the well logging curves of well FGY1, the structure and reservoir characteristics of the Upper Ordovician–Lower Silurian strata in the Fenggang block, northern Guizhou Province, were analyzed thoroughly to identify desert areas and favorable intervals. The results show that Longmaxi‐Wufeng is the most prospect‐rich formation, consisting of a thick succession of overmature black shale, this formation remaining partially in the Suiyang, Fenggang and Jianchaxi synclines. The Longmaxi‐Wufeng shale, especially the lower member, was deposited in a reducing low‐energy environment with relatively high U content and a low Th/U value. In this shale, the organic matter type (sapropelic and humic‐sapropelic), total organic carbon (TOC) content, gas content, gas adsorption capacity, vitrinite reflectance and brittle mineral content are profitable for shale gas preservation and development. The fractures of this shale were closed because of its high overburden pressure. The gas adsorption capacity of this shale increases with increasing TOC content and Ro. In the Longmaxi‐Wufeng Formation at well FGY1, the most favorable intervals are in the depth ranges of 2312.4–2325.1 m and 2325.8–2331.1 m.

show abstract

“…Analyses of sediment samples undertaken as part of the various studies cited indicate that the clayey-silty materials contain the highest concentrations of As. Furthermore, and without disregarding water-sediment interactions, recent studies of the distribution of As within the area allude to the distribution of As in the southern CDB being strongly controlled by the structure of the Basin (Giménez-Forcada and Smedley, 2014;Rey-Moral et al, 2016;Giménez-Forcada et al, 2017).…”

Section: +mentioning

confidence: 99%

Hydrogeotoxicity from arsenic and uranium in the southern Duero Basin, Spain

Giménez-Forcada

Timón-Sánchez

Kohfahl

2017

Journal of Geochemical Exploration

Self Cite

View full text Add to dashboard Cite

Characterization of regional cold-hydrothermal inflows enriched in arsenic and associated trace-elements in the southern part of the Duero Basin (Spain), by multivariate statistical analysis

Cited by 20 publications

References 28 publications

Hydrothermal Treatment of Arsenic Sulfide Residues from Arsenic-Bearing Acid Wastewater

Hydrothermal Treatment of Arsenic Sulfide Residues from Arsenic-Bearing Acid Wastewater

Shale Gas Reservoir Evaluation by Geophysical Measurements: A Case Study of the Upper Ordovician–Lower Silurian in the Fenggang Block, Northern Guizhou Province

Hydrogeotoxicity from arsenic and uranium in the southern Duero Basin, Spain

Contact Info

Product

Resources

About