Land Contamination & Reclamation最新文献_第5页

Remote sensing as a promising tool for environmental assessment. 遥感作为一种有前途的环境评估工具。

Land Contamination & Reclamation Pub Date : 2009-11-01 DOI: 10.2462/09670513.980

Maria Szomolanyi Ritvayne, Gabriella Frombach, A. Nagy

引用次数: 1

Integrated and efficient assessment of contaminated sites. 污染场地的综合有效评估。

Land Contamination & Reclamation Pub Date : 2009-11-01 DOI: 10.2462/09670513.950

K. Gruiz

引用次数: 7

Introduction: smart environmental management 简介:智能环境管理

Land Contamination & Reclamation Pub Date : 2009-11-01 DOI: 10.2462/09670513.971

K. Gruiz, T. Meggyes

引用次数: 2

Complex environmental risk management at a former mining site. 前矿区复杂环境风险管理。

Land Contamination & Reclamation Pub Date : 2009-11-01 DOI: 10.2462/09670513.949

K. Gruiz, E. Vaszita, Z. Siki, V. Feigl, F. Fekete

引用次数: 7

In situ soil remediation: the reactor approach. 原位土壤修复:反应器法。

Land Contamination & Reclamation Pub Date : 2009-11-01 DOI: 10.2462/09670513.959

K. Gruiz

引用次数: 3

Remediation of soils contaminated with petrol and diesel using lime 用石灰修复受汽油和柴油污染的土壤

Land Contamination & Reclamation Pub Date : 2009-05-01 DOI: 10.2462/09670513.940

C. Collins, D. Lothian, V. Schifano

{"title":"Remediation of soils contaminated with petrol and diesel using lime","authors":"C. Collins, D. Lothian, V. Schifano","doi":"10.2462/09670513.940","DOIUrl":"https://doi.org/10.2462/09670513.940","url":null,"abstract":"Lime treatment of hydrocarbon-contaminated soils offers the potential to stabilize and solidify these materials, with a consequent reduction in the risks associated with the leachate emanating from them. This can aid the disposal of contaminated soils or enable their on-site treatment. In this study, the addition of hydrated lime and quicklime significantly reduced the leaching of total petroleum hydrocarbons (TPH) from soils polluted with a 50:50 petrol/diesel mixture. Treatment with quicklime was slightly more effective, but hydrated lime may be better in the field because of its ease of handling. It is proposed that this occurs as a consequence of pozzolanic reactions retaining the hydrocarbons within the soil matrix. There was some evidence that this may be a temporary effect, as leaching increased between seven and 21 days after treatment, but the TPH concentrations in the leachate of treated soils were still one order of magnitude below those of the control soil, offering significant protection to groundwater. The reduction in leaching following treatment was observed in both aliphatic and aromatic fractions, but the latter were more affected because of their higher solubilty. The results are discussed in the context of risk assessment, and recommendations for future research are made.","PeriodicalId":336428,"journal":{"name":"Land Contamination & Reclamation","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127623359","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

Phytoremediation and its effect on the mobility of metals in soil: a fractionation study 植物修复及其对土壤中金属迁移的影响:分步研究

Land Contamination & Reclamation Pub Date : 2009-05-01 DOI: 10.2462/09670513.937

P. Padmavathiamma, LorettaY Li

{"title":"Phytoremediation and its effect on the mobility of metals in soil: a fractionation study","authors":"P. Padmavathiamma, LorettaY Li","doi":"10.2462/09670513.937","DOIUrl":"https://doi.org/10.2462/09670513.937","url":null,"abstract":"Studies were conducted to investigate the effect of phytoremediation on the immobilization of Cu, Pb, Mn and Zn in soils at different stages of plant growth. Two multi-metal soil concentrations were examined in pot experiments by growing five different plant species: Lolium perenne L. (perennial rye grass), Festuca rubra L. (creeping red fescue), Helianthus annuus L. (sunflower), Poa pratensis L. (Kentucky bluegrass) and Brassica napus L. (rape) for this study. Selective sequential extraction techniques differentiated the mobile and immobile metal fractions in the soil. Soil-metal conversions due to plant growth appear to follow the order: organic Cu to oxide Cu; oxide Pb to organic Pb; oxide Mn to exchangeable Mn; and exchangeable Zn to oxide Zn. As the growth of plants proceeded from 90 to 120 days after sowing, the relatively immobile fractions such as the oxide and organic fractions dominated in the soils growing Festuca, Lolium and Poa. The oxide fraction increased in soils growing Festuca, the organic fraction in soils growing Lolium and Poa, and the exchangeable fraction in soils growing Helianthus and Brassica. Based on the partitioning of metals in various soil fractions, Lolium, Poa and Festuca are identified as being suitable for the phytostabilization of metals (Cu, Pb, Mn and Zn) in moderately contaminated acid soil.","PeriodicalId":336428,"journal":{"name":"Land Contamination & Reclamation","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124654217","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: 12

Characteristics of removal of hydrophobic organic carbons from sand/mulch using nonionic surfactants. 非离子表面活性剂去除砂/地膜中疏水有机碳的特性。

Land Contamination & Reclamation Pub Date : 2009-05-01 DOI: 10.2462/09670513.875

S. Jodeh

引用次数: 2

Coupling of oxygen and pH requirements for effective microwave-assisted digestion of soils for tungsten analysis. 用于钨分析的有效微波消解土壤中氧和pH要求的耦合。

Land Contamination & Reclamation Pub Date : 2009-04-01 DOI: 10.2462/09670513.927

C. Griggs, S. Larson, C. Nestler, M. Thompson

{"title":"Coupling of oxygen and pH requirements for effective microwave-assisted digestion of soils for tungsten analysis.","authors":"C. Griggs, S. Larson, C. Nestler, M. Thompson","doi":"10.2462/09670513.927","DOIUrl":"https://doi.org/10.2462/09670513.927","url":null,"abstract":"Fully understanding the environmental fate of tungsten is an ongoing challenge from an analytical perspective, due to the lack of effective laboratory methods for quantifying tungsten in soil. Developing the methods necessary to accurately and consistently monitor tungsten in soil matrices is essential for understanding the behavior of tungsten in the environment. Traditional digestion procedures such as SW-846 Method 3051 that are usually employed for the analysis of heavy metals are not consistently useful for the complete digestion of tungsten. The chemistry of tungsten presents unique challenges due to the metal’s ability to polymerize under acidic conditions. Method modifications to the digestion procedure outlined in SW-846 Method 3051 to enhance tungsten recovery from soils are described in this paper. These method modifications were evaluated for determining tungsten concentration in five soil types. A modified acid composition of 8 mL of concentrated nitric acid and 2 mL of concentrated phosphoric acid as the digestion solution, coupled with 6 mL of 50% (w/w) hydrogen peroxide, increased the tungsten per cent recovery range in five different soil types. The modified digestion yielded an average recovery of 88.2% compared to 10.2% obtained using Method 3051 for the five soil types evaluated. Method modifications are presented, with the goal of improved extraction efficiency, and greater precision in the analysis of tungsten.","PeriodicalId":336428,"journal":{"name":"Land Contamination & Reclamation","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130614839","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: 10

Partitioning between aqueous and soil system components for soluble tungsten and lead species. 水溶性钨和铅在水和土壤系统组分之间的分配。

Land Contamination & Reclamation Pub Date : 2009-04-01 DOI: 10.2462/09670513.917

C. Griggs, S. Larson, Jared L. Johnson, D. Felt, C. Nestler

{"title":"Partitioning between aqueous and soil system components for soluble tungsten and lead species.","authors":"C. Griggs, S. Larson, Jared L. Johnson, D. Felt, C. Nestler","doi":"10.2462/09670513.917","DOIUrl":"https://doi.org/10.2462/09670513.917","url":null,"abstract":"The establishment of reliable sorptive Kd values for a given metal in a given soil is a critical preliminary step in the determination of metal mobility. The distribution coefficient, Kd, is partially based on assuming the contaminant is a single species, and equilibrium conditions are established between the solid and aqueous phases. However, metals such as tungsten (W) may exist as different chemical species, depending on the aqueous and solid phase chemical environment, and are shown to require an extended period of time for the system to approach equilibrium. Due to the more involved speciation characteristics associated with tungsten, the effect of extended equilibrium periods on W Kd values is examined in this study. The sorption characteristics of tungsten and lead in three natural silty sand (SM) soils are compared. Partition coefficients were obtained both at the traditional 24hour contact time (Kd) and then again after 100 days (Kd). The Kd values were for Pb representative of Kd values for the soils examined. However, in the case of W, dynamic sorptive behavior was observed. The ratios of Day 100 to Day 1 distribution coefficients were 19.6, 6.2, and 2.4 for tungsten in samples SM1, SM2, and SM3, respectively. This suggests that a longer equilibration time may provide a more accurate reflection of W mobility in subsurface environments when using the sorption Kd as a predictive tool.","PeriodicalId":336428,"journal":{"name":"Land Contamination & Reclamation","volume":"75 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121914356","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: 6