cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6967718.v1
title: Environmental performance of a full-scale wastewater treatment plant applying Life Cycle Assessment

description: Abstract Life Cycle Assessment (LCA) was applied to estimate and analyze the environmental impacts from the construction and operation phases of a full-scale wastewater treatment plant (WWTP) located in the municipality of Lauro de Freitas, Bahia, Brazil. The WWTP process consists of the association of an Upflow Anaerobic Sludge Blanket (UASB) reactor followed by four constructed wetlands (CWL) and a disinfection step. The functional unit was defined as one cubic meter of treated effluent during the useful life of this WWTP (20 years). The LCA was carried out using SimaPro® software and the Centre of Environmental Science (CML) assessment method. The environmental impacts during construction phase were mainly from the wooden forms for concrete and the use of reinforcing steel. During the operation phase, the chlorine used as effluent disinfectant caused the greatest impacts in the abiotic depletion and acidification categories. Macronutrient concentrations present in the treated effluent and the methane generated also caused significant environmental impacts during the WWTP’s useful life. The results obtained highlight the importance of the application of a methodology like LCA to assist in decision-making with regard to the implementation, construction and operation of a WWTP.
DOI: 10.6084/m9.figshare.6968186.v1
title: Probabilistic flood forecast for a small Pantanal watershed

description: Abstract Monitoring for flood forecasting in small hydrographic basins is of great importance in view of the relationship of water resources with society, as it can guarantee the sustainable use of urban communities in cities bordering the basin. The Aquidauana River, classified as a small basin, belongs to the Paraguay River basin and is an affluent of the Miranda River, forming part of the Pantanal plain, being inserted in the mapping of rivers vulnerable to flooding in the Central-West region of Brazil. This study deals with the monitoring of the river Aquidauana and uses artificial neural networks (RNAs) of the MultiLayer Perceptron type (training back-propagation) with parameters optimized by Genetic Algorithms. The RNA was trained and tested based on hydrological data between 1995 and 2014, accumulated rainfall (mm) and river level (cm) upstream. The forecast was 1 to 5 days, with the best performance of the model for 1 day of forecast, with a coefficient of determination and mean square error of 0.93 and 30 (cm), respectively.
DOI: 10.6084/m9.figshare.6967718
title: Environmental performance of a full-scale wastewater treatment plant applying Life Cycle Assessment

description: Abstract Life Cycle Assessment (LCA) was applied to estimate and analyze the environmental impacts from the construction and operation phases of a full-scale wastewater treatment plant (WWTP) located in the municipality of Lauro de Freitas, Bahia, Brazil. The WWTP process consists of the association of an Upflow Anaerobic Sludge Blanket (UASB) reactor followed by four constructed wetlands (CWL) and a disinfection step. The functional unit was defined as one cubic meter of treated effluent during the useful life of this WWTP (20 years). The LCA was carried out using SimaPro® software and the Centre of Environmental Science (CML) assessment method. The environmental impacts during construction phase were mainly from the wooden forms for concrete and the use of reinforcing steel. During the operation phase, the chlorine used as effluent disinfectant caused the greatest impacts in the abiotic depletion and acidification categories. Macronutrient concentrations present in the treated effluent and the methane generated also caused significant environmental impacts during the WWTP’s useful life. The results obtained highlight the importance of the application of a methodology like LCA to assist in decision-making with regard to the implementation, construction and operation of a WWTP.
DOI: 10.6084/m9.figshare.6968186
title: Probabilistic flood forecast for a small Pantanal watershed

description: Abstract Monitoring for flood forecasting in small hydrographic basins is of great importance in view of the relationship of water resources with society, as it can guarantee the sustainable use of urban communities in cities bordering the basin. The Aquidauana River, classified as a small basin, belongs to the Paraguay River basin and is an affluent of the Miranda River, forming part of the Pantanal plain, being inserted in the mapping of rivers vulnerable to flooding in the Central-West region of Brazil. This study deals with the monitoring of the river Aquidauana and uses artificial neural networks (RNAs) of the MultiLayer Perceptron type (training back-propagation) with parameters optimized by Genetic Algorithms. The RNA was trained and tested based on hydrological data between 1995 and 2014, accumulated rainfall (mm) and river level (cm) upstream. The forecast was 1 to 5 days, with the best performance of the model for 1 day of forecast, with a coefficient of determination and mean square error of 0.93 and 30 (cm), respectively.
DOI: 10.6084/m9.figshare.7243970
title: Temporal dynamics of the water footprint of soybean hub grains in Western Pará, Amazon

description: Abstract This study analyzed the time dynamics of the water footprint of eight soybean cultivars planted in the Western Pará, Amazon. Meteorological data between 2009 and 2014 were used to calculate the crop’s evapotranspiration rates. Since the water footprint is subdivided into green, blue, and grey, and the crops are not irrigated in the region, only the green and grey footprints were used. WFgreen (water footprint green) was estimated considering the total amount of water consumed during the cycle of each cultivar. WFgrey was assessed using the nitrate present in nitrogen fertilizers as contaminating factor in water bodies according to the concentrations accepted by CONAMA 357/2005. Two N dose values were considered, i.e., 30 kg ha-1 based on fertilizer values tested in the literature and the N present in the formulations (2:20:20) of the fertilizers sold in the region, while the maximum used in top dressing is 2 kg ha-1. Among the eight cultivars analyzed, C1 had the smallest water footprint, which shows the efficient use of the water available in every year/harvest analyzed. The total water footprint presented in this study highlights the importance of the methodology to estimate the consumptive use of water in grain production centers. The soybean produced in western Pará has a small grey water footprint, but the cultivars must be highly productive to reduce the green water footprint of soy farming in the region. The definition of the water footprint aids in the strategic planning of the management of water resources in grain production areas in the Amazon.
DOI: 10.6084/m9.figshare.7243970.v1
title: Temporal dynamics of the water footprint of soybean hub grains in Western Pará, Amazon

description: Abstract This study analyzed the time dynamics of the water footprint of eight soybean cultivars planted in the Western Pará, Amazon. Meteorological data between 2009 and 2014 were used to calculate the crop’s evapotranspiration rates. Since the water footprint is subdivided into green, blue, and grey, and the crops are not irrigated in the region, only the green and grey footprints were used. WFgreen (water footprint green) was estimated considering the total amount of water consumed during the cycle of each cultivar. WFgrey was assessed using the nitrate present in nitrogen fertilizers as contaminating factor in water bodies according to the concentrations accepted by CONAMA 357/2005. Two N dose values were considered, i.e., 30 kg ha-1 based on fertilizer values tested in the literature and the N present in the formulations (2:20:20) of the fertilizers sold in the region, while the maximum used in top dressing is 2 kg ha-1. Among the eight cultivars analyzed, C1 had the smallest water footprint, which shows the efficient use of the water available in every year/harvest analyzed. The total water footprint presented in this study highlights the importance of the methodology to estimate the consumptive use of water in grain production centers. The soybean produced in western Pará has a small grey water footprint, but the cultivars must be highly productive to reduce the green water footprint of soy farming in the region. The definition of the water footprint aids in the strategic planning of the management of water resources in grain production areas in the Amazon.
DOI: 10.17632/dwwpcngxbs.1
title: Price discovery process and lead-lag relationship in Brent and WTI crude oil markets

description: The dataset consists of weekly and monthly spot and futures prices for the two crude oil benchmarks, namely WTI and Brent. The weekly data series cover the periods January 3, 1986, to January 29, 2021. While the monthly data series span from January 1990 to January 2021. All the datasets are sourced from the US Energy Information Administration, with the exception of only Brent futures price datasets which were obtained from investing.com UK.
DOI: 10.6084/m9.figshare.7710800
title: Potentially toxic metals in lotic systems with aptitude for aquaculture at the watershed Mantaro River, Peru

description: Abstract The objective of the study was to analyze the concentration of Cu, Zn, Fe, Pb and As in river water suitable for aquaculture in the watershed of the Mantaro River using multivariate statistical methods, during the period 2011-2013. The determinations of total heavy metals in water collected during two different climatic periods were performed by atomic absorption spectrophotometry, according to the methodology recommended by FAO. The results obtained show that, in the seven rivers evaluated, the average concentration of Pb, Fe and Cu exceeded the quality standards of Peru's continental water for the extraction and cultivation of hydrobiological species and USEPA standards for the protection of fish and aquatic life. The average concentration of Zn only exceeded USEPA standards. While the concentrations of Pb and Cu also surpassed those of the WHO. The cluster analysis suggests that the evaluated rivers, in which fish farming activity is intensively developed, have similar characteristics in relation to the concentration of heavy metals. According to the analysis of main components, in Component 1, there are moderate loads for arsenic; in Component 2, there is a strong load for zinc and relatively low loads for iron; and, in Component 3, there is a moderate load for iron. The discriminant analysis revealed that two of the five variables were significant predictors of the season; in this case, copper and lead were sufficient to discriminate the variables between the rainy or dry season.
DOI: 10.6084/m9.figshare.7710800.v1
title: Potentially toxic metals in lotic systems with aptitude for aquaculture at the watershed Mantaro River, Peru

description: Abstract The objective of the study was to analyze the concentration of Cu, Zn, Fe, Pb and As in river water suitable for aquaculture in the watershed of the Mantaro River using multivariate statistical methods, during the period 2011-2013. The determinations of total heavy metals in water collected during two different climatic periods were performed by atomic absorption spectrophotometry, according to the methodology recommended by FAO. The results obtained show that, in the seven rivers evaluated, the average concentration of Pb, Fe and Cu exceeded the quality standards of Peru's continental water for the extraction and cultivation of hydrobiological species and USEPA standards for the protection of fish and aquatic life. The average concentration of Zn only exceeded USEPA standards. While the concentrations of Pb and Cu also surpassed those of the WHO. The cluster analysis suggests that the evaluated rivers, in which fish farming activity is intensively developed, have similar characteristics in relation to the concentration of heavy metals. According to the analysis of main components, in Component 1, there are moderate loads for arsenic; in Component 2, there is a strong load for zinc and relatively low loads for iron; and, in Component 3, there is a moderate load for iron. The discriminant analysis revealed that two of the five variables were significant predictors of the season; in this case, copper and lead were sufficient to discriminate the variables between the rainy or dry season.
DOI: 10.6084/m9.figshare.7835228
title: Acute ecotoxicity on Daphnia magna to evaluate effluent samples of Kraft pulp mill treated by UV/H2O2 process

description: Abstract The pulp and paper industry is one of world’s largest water consumers, generating high volumes of effluents. The Kraft process produces effluents with high BOD, COD, suspended solids, lignin and a myriad of potentially toxic compounds, which require treatment before discharge into the aquatic environment. Advanced oxidation processes, such as UV/H2O2, have been applied as treatment alternatives because they can destroy many compounds before they mineralize. However, when the oxidation process is incomplete, occurs could be produced by products with high toxicity. This study evaluated the acute toxicity on Daphnia magna of two effluent samples of Kraft pulp mill (KE1 and KE2) treated by UV/H2O2 process. The effects of the pH variation and oxidant concentration on the removal of DOC, total UV-vis spectral area and apparent color were considered to adjust the experiments’ conditions with diluted effluent KE1. Both samples were treated at pH 4.0 and 70 mg L-1 of H2O2 for 40 min, achieving removals of up to 69.4% in apparent color, 73.7% of phenolic compounds and 68.9% of lignin compounds. When the reaction was applied in undiluted effluent samples, the acute toxicity for Daphnia magna decreased for KE1 after 780 min of treatment, whereas KE2 became four times more toxic. The data showed that although the treatment had been efficient considering physics and chemicals parameters, it is necessary follow the oxidative processes with ecotoxicological bioassays to guarantee their safety, since different effluents of the Kraft pulp mill could present different levels of organic compound mineralization.
DOI: 10.6084/m9.figshare.7835228.v1
title: Acute ecotoxicity on Daphnia magna to evaluate effluent samples of Kraft pulp mill treated by UV/H2O2 process

description: Abstract The pulp and paper industry is one of world’s largest water consumers, generating high volumes of effluents. The Kraft process produces effluents with high BOD, COD, suspended solids, lignin and a myriad of potentially toxic compounds, which require treatment before discharge into the aquatic environment. Advanced oxidation processes, such as UV/H2O2, have been applied as treatment alternatives because they can destroy many compounds before they mineralize. However, when the oxidation process is incomplete, occurs could be produced by products with high toxicity. This study evaluated the acute toxicity on Daphnia magna of two effluent samples of Kraft pulp mill (KE1 and KE2) treated by UV/H2O2 process. The effects of the pH variation and oxidant concentration on the removal of DOC, total UV-vis spectral area and apparent color were considered to adjust the experiments’ conditions with diluted effluent KE1. Both samples were treated at pH 4.0 and 70 mg L-1 of H2O2 for 40 min, achieving removals of up to 69.4% in apparent color, 73.7% of phenolic compounds and 68.9% of lignin compounds. When the reaction was applied in undiluted effluent samples, the acute toxicity for Daphnia magna decreased for KE1 after 780 min of treatment, whereas KE2 became four times more toxic. The data showed that although the treatment had been efficient considering physics and chemicals parameters, it is necessary follow the oxidative processes with ecotoxicological bioassays to guarantee their safety, since different effluents of the Kraft pulp mill could present different levels of organic compound mineralization.
DOI: 10.17632/7rxhndg2fz.2
title: FracturationInRockMass

description: These data were collected before excavating a high cutting in a migmatitic rock for the creation of a bypass in the French Pyrenees (Gasc-Barbier et al., 2008). They can be used to understand the fracturation of the rock mass or to test design methods. Location: Ax-les-Thermes lies 130 km south of Toulouse, just 30 km from the border between France and Andorra, in the primary axial zone of the French Pyrenees. Three orogenic phases that affected the entire mountain lead to considerable fracturing of the site, which is apparent in different forms depending on the area studied. Geological information: The bypass encounters Quaternary superficial formations, fluvioglacial materials, and then the rock substratum, where the benchmark takes place. The slope understudy is mainly composed of Augen gneiss and leptinic gneiss, in practice it is impossible to separate them into two distinct areas and hence the formation is best described as migmatite (in the widest sense). All these rocks are heavily fractured Scanlines (scanlines.xls): For several reasons, excavation was stopped when the proposed 42 m high cutting was 15 m high. This provided an opportunity to realize scanlines on the new cuttings to obtain statistical information on the joint properties “in” the rock mass. A scanline is a horizontal line (of about 10 m) drawn on a rock face. The scanline should have spatial references (dip and dip direction if possible). The standard properties of all the joints that intersect the line are mapped: dip, dip direction, spacing, trace length, weathering, aperture, infill, and roughness. Several lines in different directions were drawn in order to try to intersect the maximum number of joint sets. In this particular case and because of the geometry of the site, the scanlines were drawn on three faces as depicted in scanline_location.png but their lengths were quite different. 11 horizontal scanlines (from 6 to 30 m) were plotted including 856 discontinuities over 181.5 m (scanlines.xls). Borehole images: Two boreholes (SC43.pdf and SP47.pdf) were inspected by camera. borehole.xlxs summarizes the data Mechanical data, elastic waves velocities, uniaxial and Brazilian tests, and shear tests on natural joints are provided on labo_Ax.xls
DOI: 10.6084/m9.figshare.7835252
title: Adaptation of domestic effluent for agricultural reuse by biological, physical treatment and disinfection by ultraviolet radiation

description: Abstract Domestic effluent reuse is an alternative for irrigated agriculture in situations of reduced water availability. However, as there is the presence of pathogens in wastewater, the disinfection process is necessary before use. This research evaluated the sanitary and agricultural viability of treated wastewater at a pilot-scale station composed of a septic tank, Wetlands and an ultraviolet radiation (UV) disinfection system. The Sewage Treatment Station (STS) is installed in the Agricultural Sciences Center, UFSCar, in Araras city, SP, and receives 2000 L of sewage daily, which was monitored in terms of pH, turbidity, electrical conductivity (EC), dissolved oxygen (DO), sodium (Na), potassium (K), calcium (Ca), total nitrogen (TN), total phosphorus (TP), magnesium (Mg), total organic carbon (TOC), total coliforms (TC), Escherichia coli (E. coli) and Sodium Adsorption Ratio (SAR).The removal efficiency of the parameters was calculated based on the input and output means of each treatment unit. Results indicated removal efficiency for K (68.2%), TN (54.1%) and TP (36.1%). The levels of Na (26.7%) and Ca (22.9%) demonstrated the contribution of these salts to the wastewater; however, SAR did not present any risks for soil sodification. Microbiologically, the STS presented removal efficiency of 4 and 5 log-cycles for TC and E. coli, respectively. Therefore, results of monitoring indicate that the treated wastewater presents sanitary and agricultural viability, and conforms with the current legislation.
DOI: 10.6084/m9.figshare.7835252.v1
title: Adaptation of domestic effluent for agricultural reuse by biological, physical treatment and disinfection by ultraviolet radiation

description: Abstract Domestic effluent reuse is an alternative for irrigated agriculture in situations of reduced water availability. However, as there is the presence of pathogens in wastewater, the disinfection process is necessary before use. This research evaluated the sanitary and agricultural viability of treated wastewater at a pilot-scale station composed of a septic tank, Wetlands and an ultraviolet radiation (UV) disinfection system. The Sewage Treatment Station (STS) is installed in the Agricultural Sciences Center, UFSCar, in Araras city, SP, and receives 2000 L of sewage daily, which was monitored in terms of pH, turbidity, electrical conductivity (EC), dissolved oxygen (DO), sodium (Na), potassium (K), calcium (Ca), total nitrogen (TN), total phosphorus (TP), magnesium (Mg), total organic carbon (TOC), total coliforms (TC), Escherichia coli (E. coli) and Sodium Adsorption Ratio (SAR).The removal efficiency of the parameters was calculated based on the input and output means of each treatment unit. Results indicated removal efficiency for K (68.2%), TN (54.1%) and TP (36.1%). The levels of Na (26.7%) and Ca (22.9%) demonstrated the contribution of these salts to the wastewater; however, SAR did not present any risks for soil sodification. Microbiologically, the STS presented removal efficiency of 4 and 5 log-cycles for TC and E. coli, respectively. Therefore, results of monitoring indicate that the treated wastewater presents sanitary and agricultural viability, and conforms with the current legislation.
DOI: 10.6084/m9.figshare.7835243
title: Evaluation of water resource preservation areas in the Hydrographical Basin of Andreas Stream, RS, Brazil, using environmental monitoring programs

description: Abstract This research evaluated the effectiveness of the implementation of water resource preservation areas in the Hydrographical Basin of Andreas Stream, county of Vera Cruz, RS, Brazil, established through Payment for Environmental Services (PES), using an environmental monitoring program to assess physical, chemical and microbiological variables. The PES is linked to the "Water Guardian" project, which aims to ensure the preservation of water resources by paying farmers for providing the environmental services to protect the springs and riparian areas that lie within their properties. Twenty sampling stations were selected for collecting water samples monthly during the period July 2012 to June 2014 (460 samples) to evaluate the following variables: water temperature, pH, turbidity, dissolved oxygen, biochemical oxygen demand, nitrate, ammonia nitrogen, phosphate, total dissolved solids and thermotolerant coliforms. The evaluation was made based on decree 357/2005 of the National Environmental Council (CONAMA) and by applying the Water Quality Index (WQI). The results indicated a significant improvement in the water quality when comparisons were made between the periods before and after the installation of the preservation areas. The sampling points classified as “good” (CONAMA and WQI), which indicates water of good quality that is appropriate for multiple uses, increased from 52.0% to 72.0%. In this sense, promoting the preservation of headwaters and riparian zones becomes of fundamental importance and highlights the role of PES as an operational tool for water resource preservation.
DOI: 10.17632/wfndbmjpyn.1
title: Principles of Signalling Pathway Modulation for Enhancing Human Naïve Pluripotency Induction

description: Dataset includes: 1) Peer reviewed data set consisting of 29 figures, related to Bayerl et al. Cell Stem Cell 2021, that due to space limitations, is uploaded on Mendeley and linked to the original paper. 2) Raw gel images from which western blots shown in the paper were taken.