Soil and Sediment Contamination: An International Journal最新文献_第10页

Pollution Characteristics, Spatial Distribution, and Health Risk Assessment of Soil Heavy Metal(loid)s in Panxi District, Southwest China: A Typical Industrial City 典型工业城市攀西地区土壤重金属污染特征、空间分布及健康风险评价

Soil and Sediment Contamination: An International Journal Pub Date : 2022-07-27 DOI: 10.1080/15320383.2022.2105812

Yi-ping Zhang, Zhe Wang, Zhen-long Zhang, Qing Sun, Ying Luo, Wen-jing Jia, Qiu-ping Zeng, Zhen-yu Wang, Jiaqiang Zhang, Ximei Feng, F. Huang, Yu Zhao, Fa-cheng Yi

{"title":"Pollution Characteristics, Spatial Distribution, and Health Risk Assessment of Soil Heavy Metal(loid)s in Panxi District, Southwest China: A Typical Industrial City","authors":"Yi-ping Zhang, Zhe Wang, Zhen-long Zhang, Qing Sun, Ying Luo, Wen-jing Jia, Qiu-ping Zeng, Zhen-yu Wang, Jiaqiang Zhang, Ximei Feng, F. Huang, Yu Zhao, Fa-cheng Yi","doi":"10.1080/15320383.2022.2105812","DOIUrl":"https://doi.org/10.1080/15320383.2022.2105812","url":null,"abstract":"ABSTRACT This study collected 49 topsoil samples in agricultural soil from Panxi district (Sichuan, China), investigating the contamination status and probabilistic health risk of their heavy metal(loid)s (HMs). The average concentrations (mg/kg) of As, Cd, Cr, Cu, Ni, Pb and Zn were 18.18, 1.66, 294.05, 143.37, 70.18, 31.70 and 139.18, respectively. The pollution index (Pi) of the seven HMs were in the descending order of Cd > Cr > Cu > As > Zn > Ni > Pb, and the comprehensive Nemeiro risk index (PN) was 2.67, indicating that the study area was a moderate pollution by HMs. Meanwhile, Cd showed major contribution to the soil pollution among these HMs. The spatial distribution of HMs revealed that the southwestern part of the study area was the contamination hotspots. The hazard index (Hi) for children and adults were 1.621 and 0.346, respectively, and the total non-carcinogenic risk for children exceeded the threshold of 1. The carcinogenic risks associated with Cr (adults:, children:) and Ni (adults:) far exceeded the safe level of 1E-04; Monte Carlo simulations showed that humans locating in the study area suffered from a relatively significant carcinogenic risk; and the children were at higher risk than the adults. Among the three exposure pathways (ingestion, inhalation, and dermal contact), the ingestion was the most important way for HMs to harm human health. Overall, this study provides a scientific basis for both controlling HMs contamination and reducing the potential health risks in studied soils.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"13 1","pages":"518 - 537"},"PeriodicalIF":0.0,"publicationDate":"2022-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81789524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Adsorption behavior of enrofloxacin in soil and sediment and its response mechanism to environmental factors 恩诺沙星在土壤和沉积物中的吸附行为及其对环境因子的响应机制

Soil and Sediment Contamination: An International Journal Pub Date : 2022-07-21 DOI: 10.1080/15320383.2022.2101613

Xinyue Li, Yan Jiang, Xiulan Ma, Bo Wang, Yujun Wang, Fumin Wang

{"title":"Adsorption behavior of enrofloxacin in soil and sediment and its response mechanism to environmental factors","authors":"Xinyue Li, Yan Jiang, Xiulan Ma, Bo Wang, Yujun Wang, Fumin Wang","doi":"10.1080/15320383.2022.2101613","DOIUrl":"https://doi.org/10.1080/15320383.2022.2101613","url":null,"abstract":"ABSTRACT As an important part of lake and reservoir ecosystem, sediment is an important “source” and “sink” of pollutants. Antibiotics, as a kind of important emerging organic pollutants, have attracted global attention. In order to understand the adsorption behavior and mechanism of antibiotics in sediment, enrofloxacin (ENR) was used as the target pollutant to evaluate its adsorption behavior in sediment and soil and the response mechanism of environmental factors by using the intermittent equilibrium method. The results showed that the adsorption equilibrium time of ENR in sediment and soil was 6 h, and the adsorption kinetics was in line with the quasi-second-order kinetics. The two-compartment model Herry-Langmuir can better describe the adsorption of ENR by sediment and soil. There is a lag phenomenon in desorption process.The average lag coefficient HI of sediment and soil was 1.08 × 10−3 and 0.43 × 10−3, respectively, indicating that ENR was difficult to be released. When pH = 5, the adsorption capacity is the highest, indicating that the adsorption mechanism of ENR in the sample is mainly cation exchange; the higher the cationic valence state of the background liquid is, the stronger the competitive adsorption capacity is, which leads to the gradual decrease of ENR adsorption capacity in the sample. Because ENR contains -F group, resulting in complex reaction with Al3+ in the solution, thus reducing the activity of Al3+, reducing the competitive adsorption of Al3+ and ENR, then ENR adsorption capacity increased. The change of ENR adsorption capacity of sediment and soil is Q(Al3+)>Q(Na+)>Q(K+)>Q(Ca2+)>Q(Mg2+)>Q(Fe3+). The adsorption capacity of ENR on sediment was higher than that on soil under all conditions.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"57 10","pages":"479 - 495"},"PeriodicalIF":0.0,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91514556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Chlorpyrifos Degradation in Semi-Arid Soil by Pseudomonas fluorescens Strain CD5 Isolated from Manured Soil 半干旱土壤中荧光假单胞菌CD5对毒死蜱的降解作用

Soil and Sediment Contamination: An International Journal Pub Date : 2022-07-19 DOI: 10.1080/15320383.2022.2098253

S. Dubey, M. Dhanya

{"title":"Chlorpyrifos Degradation in Semi-Arid Soil by Pseudomonas fluorescens Strain CD5 Isolated from Manured Soil","authors":"S. Dubey, M. Dhanya","doi":"10.1080/15320383.2022.2098253","DOIUrl":"https://doi.org/10.1080/15320383.2022.2098253","url":null,"abstract":"ABSTRACT The present paper focused on investigating the potential of indigenous Pseudomonas fluorescens strain CD5 isolated from manure-enriched soil as a bioremediation agent for chlorpyrifos biodegradation in semi-arid soil of Bathinda district of Punjab, India. The soil had sandy loam texture with slightly alkaline pH and low organic matter content of 0.36%. The growth pattern, alkaline phosphatase enzyme production and chlorpyrifos utilization capability of Pseudomonas fluorescens strain CD5 were screened in mineral salt medium and the results revealed degradation of 78.19% of 500 mg L−1 chlorpyrifos within 15 days. The pattern of chlorpyrifos degradation was further studied in natural conditions of semi-arid soil by the Pseudomonas fluorescens strain CD5 and photolysis by sunlight for a period of 105 days. The biodegradation of chlorpyrifos at 500 mg kg−1 sterile soil by Pseudomonas fluorescens strain CD5 was 59.68% in comparison to 26% of photodegradation and enhancing total degradation. The residual chlorpyrifos in sterile soil after biodegradation by Pseudomonas fluorescens strain CD5 under natural light condition was 14.33%. The alkaline phosphatase enzyme activity in soil was found positively correlated with the chlorpyrifos degradation. The Pseudomonas fluorescens strain CD5 can be an effective candidate for the bioremediation of chlorpyrifos-contaminated soil.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"115 1","pages":"460 - 477"},"PeriodicalIF":0.0,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79050838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Review on the interaction between Nanoparticles and Toxic metals in Soil: Meta-analysis of their effects on soil, plants and human health 纳米粒子与土壤中有毒金属相互作用研究进展:对土壤、植物和人体健康影响的荟萃分析

Soil and Sediment Contamination: An International Journal Pub Date : 2022-07-17 DOI: 10.1080/15320383.2022.2096564

Keita Djibril Sekou, Harshad Patel

{"title":"A Review on the interaction between Nanoparticles and Toxic metals in Soil: Meta-analysis of their effects on soil, plants and human health","authors":"Keita Djibril Sekou, Harshad Patel","doi":"10.1080/15320383.2022.2096564","DOIUrl":"https://doi.org/10.1080/15320383.2022.2096564","url":null,"abstract":"ABSTRACT The utilities of nanoproducts are inescapable in modern times due to the need of many technological companies. Still, concerns remain about their toxicity and possible environmental, health, and safety risks. Based on a meta-analysis of engineered nanoparticles (ENPs) toxic effects in the soil, this article sheds light on the toxicity of nanoparticles, toxic metals (TMs), and their synergistic toxicity. Several scientific research investigations have been held on the risk of nanoparticles (NPs) in the environment, but their toxicity and reactions toward coexistent contaminants remain challenging. According to our research, nanoparticles’ effects on TMs’ bioavailability depend on soil characteristics. This review article assessed the bioaccumulation of NPs and TMs in soils and plants. Furthermore, biomagnification of those toxicants in the human body and organisms has been discussed. It has been remarked that soil parameters played a crucial role in the bioavailability of these toxicants. In addition to this research paper, many other articles confirmed that nanoparticles’ coexistence with TMs could amplify metals’ toxicity in soil. Antecedent studies have been included to provide a comprehensive overview of the review. This review aimed to provide a deep understanding of the various aspects of the NPs and TMs and highlighted the multiple aspects of the toxicants and their harmful effects.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"43 1","pages":"417 - 447"},"PeriodicalIF":0.0,"publicationDate":"2022-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85859817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Application of near infrared spectroscopy in sub-surface monitoring of petroleum contaminants in laboratory-prepared soils 近红外光谱在实验室制备土壤中石油污染物地下监测中的应用

Soil and Sediment Contamination: An International Journal Pub Date : 2022-07-04 DOI: 10.1080/15320383.2022.2095978

Hanly S. Bingari, A. Gibson, Emily Butcher, R. Teeuw, F. Couceiro

{"title":"Application of near infrared spectroscopy in sub-surface monitoring of petroleum contaminants in laboratory-prepared soils","authors":"Hanly S. Bingari, A. Gibson, Emily Butcher, R. Teeuw, F. Couceiro","doi":"10.1080/15320383.2022.2095978","DOIUrl":"https://doi.org/10.1080/15320383.2022.2095978","url":null,"abstract":"ABSTRACT This study was conducted to determine the suitability of near-infrared (NIR) spectroscopy for subsurface monitoring of crude oil contaminants in different soil types under different moisture conditions. Calibration tests, carried out in both wet and dry soils, with crude oil contents 5–30% indicate an inverse relationship between spectra and oil content with R2 values ≥0.98 for dry soil mixtures. A derived index termed “Oil Index” was generated by calculating a spectral ratio between the main oil peak in the NIR region and a spectrally inactive part of the spectrum within the visible region. It was used in a series of experiments designed to test whether NIR probes could yield useful information about the movement of oil through different soils. Synthetic crude oil was dropped into a series of soil samples of different particle size distribution and moisture content. Analyses of the 3D distribution of values of the Oil Index demonstrate that it is possible to estimate and map synthetic crude oil concentration in the subsurface of the soil samples. Results showed that while the Oil Index provided a reasonable estimation for oil concentration in dry samples, this was not the case for wet samples, although the Index was useful in understanding the pattern of movement of oil contaminant in wet soils. The work indicates that this technique may enhance field investigation of oil contamination, providing an accurate in-field technique.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"18 1","pages":"400 - 416"},"PeriodicalIF":0.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83732430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Use of time-lapse 2D and 3D geoelectrical inverse models for monitoring acid mine drainage -a case study 利用延时二维和三维地电反演模型监测酸性矿井排水——以实例为例

Soil and Sediment Contamination: An International Journal Pub Date : 2022-06-23 DOI: 10.1080/15320383.2022.2090895

B. Jodeiri Shokri, Foojan Shafaei, F. Doulati Ardejani, A. Mirzaghorbanali, Sh. Entezam

{"title":"Use of time-lapse 2D and 3D geoelectrical inverse models for monitoring acid mine drainage -a case study","authors":"B. Jodeiri Shokri, Foojan Shafaei, F. Doulati Ardejani, A. Mirzaghorbanali, Sh. Entezam","doi":"10.1080/15320383.2022.2090895","DOIUrl":"https://doi.org/10.1080/15320383.2022.2090895","url":null,"abstract":"ABSTRACT Coal washing plants produce large amounts of waste, and tailings are generally dumped in piles and impoundments nearby the plants. Sulfide minerals, water infiltration, and oxygen diffusion can result in acid mine drainage (AMD). In this paper, monitoring the AMD generated by a coal washing plant in northeastern Iran was investigated by applying time-lapse 2D and 3D geoelectrical techniques. For this purpose, 2D and 3D geoelectrical surveys with the Dipole-Dipole array were conducted in the area surrounded by an abandoned pile and nearby two impoundments. The surveys were repeated six months after the first measurements to characterize the temporal changes in the medium. 2D geoelectrical time-lapse suggests that the AMD is being generated at the shallower level of the pile. Moreover, the 3D time-lapse and hydrogeochemical analysis indicate that the likely plume is conveyed to the groundwater downstream of the pile. Besides, the results of time-lapse 3D geoelectrical models illustrate that seasonal changes, mainly precipitation, could affect the likely plume and transport it to subsurface layers.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"4 1","pages":"376 - 399"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74381146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Distribution of Vanadium in the Surficial Sediments of Prydz Bay, Indian Sector of the Southern Ocean 南大洋印度区Prydz湾表层沉积物中钒的分布

Soil and Sediment Contamination: An International Journal Pub Date : 2022-06-20 DOI: 10.1080/15320383.2022.2090501

P. M. John, Gireesh R, V. N. Sanjeevan, A. Gopinath

{"title":"Distribution of Vanadium in the Surficial Sediments of Prydz Bay, Indian Sector of the Southern Ocean","authors":"P. M. John, Gireesh R, V. N. Sanjeevan, A. Gopinath","doi":"10.1080/15320383.2022.2090501","DOIUrl":"https://doi.org/10.1080/15320383.2022.2090501","url":null,"abstract":"ABSTRACT The study was carried out in seven stations to assess concentration levels of Vanadium (V) in sediments of the Prydz Bay, Indian sector of the Southern Ocean during the austral summer season. Sediment analysis showed that V concentration on the eastern side was extensively higher than on the western side of Prydz Bay. A significant observation was the high concentration of V concentration in fine sediment fraction than in total metal fraction. Vanadium concentration level on the western side varied from 19.4 to 45.5 mg/kg while it was 40.9–65.8 mg/kg on the eastern side of Prydz Bay. The prevailing petroleum-related activities coupled with fuel combustion processes at various research stations in the Antarctic subcontinent and the influence of sea ice cover interaction could be the reason for the high V concentration on the eastern side of Prydz Bay. A significant spatial variation in textural characteristics, elemental composition, and total organic carbon was observed with high concentration levels of total organic carbon (TOC), total nitrogen (TN), and total hydrogen (TH) in the eastern part of Prydz Bay. The statistical analysis revealed a strong positive correlation of V concentration with governing factors at p < .01 level.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"225 1","pages":"363 - 375"},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72681137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Comparison of ultrasonic and microwave assisted digestion methods for the determination of heavy metals in soil and sediment: The effect of seasonal variations on metal concentrations and risk assessment 超声波和微波消解法测定土壤和沉积物中重金属的比较:季节变化对重金属浓度的影响及风险评估

Soil and Sediment Contamination: An International Journal Pub Date : 2022-06-09 DOI: 10.1080/15320383.2022.2084032

Kavisha Naicker, P. Mahlambi, Mphilisi M. Mahlambi

{"title":"Comparison of ultrasonic and microwave assisted digestion methods for the determination of heavy metals in soil and sediment: The effect of seasonal variations on metal concentrations and risk assessment","authors":"Kavisha Naicker, P. Mahlambi, Mphilisi M. Mahlambi","doi":"10.1080/15320383.2022.2084032","DOIUrl":"https://doi.org/10.1080/15320383.2022.2084032","url":null,"abstract":"ABSTRACT This study presents the analysis of twelve trace elements in soil and sediment samples using microwave-assisted and ultrasonic-assisted digestion prior to analysis with inductively coupled plasma optical emission spectroscopy. The recoveries obtained for the microwave-assisted ranged between 81–101% and 80–98% while ultrasonic-assisted recoveries were 80–108% and 79–103% for soil and sediment samples respectively. The metal concentrations obtained ranged from 0.10–355.4 mg/kg and 1.50–308.3 mg/kg in soil and sediments respectively. Most of the studied elements were below the maximum permissible limits in soil except for zinc. Both digestion methods revealed similar accuracy, indicating that both can be used for accurate determination of the target metals. However, ultrasonic-assisted digestion can be recommended as an alternative method to the conventional microwave-assisted digestion since it can successfully digest without the use of extreme temperatures and pressures, and it requires inexpensive technique. Further geo-statistical analysis for heavy metal contamination in soil and sediment were assessed. The enrichment factor and geo-accumulation index ranged between 0.1–18.9 and −2.6–2.5 respectively. The potential ecological risk index showed the overall biological hazard to be the highest at Woodhouse soil classified as risk level C (strong pollution level), indicating a need for continuous monitoring of these metals.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"33 1","pages":"320 - 336"},"PeriodicalIF":0.0,"publicationDate":"2022-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89819647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Evaluation and Distribution of Selected Polychlorinated Biphenyl Congeners and Triclosan in Soil, Sediment and Surface Water System: A Case Study of Ojutu River, Osun State, Nigeria 土壤、沉积物和地表水系统中部分多氯联苯同系物和三氯生的评价与分布——以尼日利亚Osun州Ojutu河为例

Soil and Sediment Contamination: An International Journal Pub Date : 2022-06-07 DOI: 10.1080/15320383.2022.2083072

F. Afolabi, G. C. Adeyinka, G. A. Adebisi

{"title":"Evaluation and Distribution of Selected Polychlorinated Biphenyl Congeners and Triclosan in Soil, Sediment and Surface Water System: A Case Study of Ojutu River, Osun State, Nigeria","authors":"F. Afolabi, G. C. Adeyinka, G. A. Adebisi","doi":"10.1080/15320383.2022.2083072","DOIUrl":"https://doi.org/10.1080/15320383.2022.2083072","url":null,"abstract":"ABSTRACT This study evaluated the presence of seven-selected polychlorinated biphenyls and triclosan in the Ojutu River, Osun State Nigeria. The soil, sediment and surface water at five different sampling sites were investigated following the standard analytical procedure. The maximum concentration of targeted PCBs in soil, sediment and water are; 1.02 µg/g, 0.6490 µg/g and 0.02981 µg/mL respectively. While triclosan has 0.0562 ng/g, 0.0457 ng/g and 0.001070 ng/mL in sediment, soil and water samples respectively. The concentrations of some of the selected PCB congeners and triclosan were significant in sediment and soil samples across the sites while the majority analytes showed no significant differences in water samples across the sites. The parameters investigated were found within the WHO maximum permissible limit therefore the water could be considered less susceptible to these pollutants. Other contaminants such as personal care products, pharmaceuticals, heavy metals and micro-pollutants as well as pollution levels associated with microbial load are worthy of investigation to know the actual state of the river for the safety of aquatic lives and the health of humans who depends on this river.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"22 1","pages":"287 - 304"},"PeriodicalIF":0.0,"publicationDate":"2022-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90150589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Modeling and optimizing by the response surface methodology of the Pb(II)-removing effectiveness from a soil by electrokinetic remediation 利用响应面法模拟和优化土壤中电动修复去除Pb(II)的效果

Soil and Sediment Contamination: An International Journal Pub Date : 2022-06-02 DOI: 10.1080/15320383.2022.2083580

K. Kada, A. Abdi, Z. B. Djelloul Sayah, D. Akretche, S. Rafai, H. Lahmar, M. Benamira

{"title":"Modeling and optimizing by the response surface methodology of the Pb(II)-removing effectiveness from a soil by electrokinetic remediation","authors":"K. Kada, A. Abdi, Z. B. Djelloul Sayah, D. Akretche, S. Rafai, H. Lahmar, M. Benamira","doi":"10.1080/15320383.2022.2083580","DOIUrl":"https://doi.org/10.1080/15320383.2022.2083580","url":null,"abstract":"ABSTRACT Herein, we report the optimization of Pb(II) ions removal from soil by electrokinetic remediation, using the response surface methodology (RSM) based on central composite design (CCD) describing individual and interactive effects of three chosen variables: the current intensity (I), electrolyte concentration (C) and remediation time (t). Sulfuric acid was selected as the electrolyte medium. The physicochemical properties of the soil were well characterized. The electrokinetic remediation (EKR) experiments were performed in galvanostatic mode, at constant current intensity. The lead Pb(II) content was measured using the atomic absorption spectrophotometer (AAS). Designing and modeling of the experimental runs were done using the Design Expert software. The results establish that the quadratic polynomial model matches the experimental data between the removal efficiency (η %) and the influencing factors. The obtained p-values (<0.05) through ANOVA analysis reveal a significant term, suggesting that the model was satisfactory. The significance of influencing factors increases is in that order: I < C (H2SO4) < t; increasing the remediation time translates into higher removal efficiencies. The statistical optimization strategy used in this study was successful in attaining the maximal lead removal of 86.79% using current intensity of 0.05 A, H2SO4 concentration of 0.05 M, and remediation time of 24 h 38 min. Ultimately, besides the great potential of the electrokinetic remediation for efficient removal of Pb(II) species, the RSM-based CCD is a promising and valuable tool for modeling and optimizing their elimination from contaminated soils.","PeriodicalId":21865,"journal":{"name":"Soil and Sediment Contamination: An International Journal","volume":"28 1","pages":"305 - 319"},"PeriodicalIF":0.0,"publicationDate":"2022-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79162762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0