contaminated site treatment Articles
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Experimental design of diffusion and desorption of contaminant in heterogeneous media
Storage of contaminants in low permeability media (LPM) presents a great challenge for prediction of remediation effectiveness and efficiency. The reason lies in the contaminants' complex behaviors within heterogeneous media. Both interparticle and intraparticle diffusion contribute to the difficulty of precise site assessment. Sorption of contaminants – especially within LPM – may sequester the ...
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Pulp and Paper Industry Facing Water Issues
Water-reuse and waste-to-energy technologies can lessen environmental impact The pulp and paper (P&P) industry is one of the largest users of water in the industrial economy of the United States. It requires an average of 54 m3 of water to produce a metric ton of pulp or paper, and almost all phases of manufacturing require water. On the downstream side, P&P mills also create ...
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Kara Trutnov Site: Successful Reduction of Mixed Contamination of Chromium and Chlorinated Organics
Remediation company EKORA in collaboration with company NANO IRON, producer of zerovalent iron nanoparticles (nZVI), conducted pilot injection of surface stabilized nanoparticles of elemental iron (NANOFER 25S) and their subsequent full-scale application to eliminate groundwater contamination of chlorinated hydrocarbons (CHCs) and hexavalent chromium (Cr6+) at KARA Trutnov site in Czech Republic. ...
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Resuspended contaminated sediments cause sub‐lethal stress to oysters: A biomarker differentiates TSS and contaminant effects
Resuspended contaminated sediments (RCS) represent an important route of contaminant exposure for aquatic organisms. Filter‐feeding organisms are exposed to contaminants, both in the dissolved (at the gills) and particulate form (in the digestive system), during resuspension events. In addition, these organisms must manage the physical stress associated with an increase in total suspended ...
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Biodegradation of total petroleum hydrocarbon (TPH) in Jordanian petroleum sludge
Bioremediation, or the use of micro-organisms to decontaminate soil or groundwater, is being increasingly seen as an effective, environment-friendly treatment for oil-contaminated sites. In this study, the results are presented concerning a laboratory screening of several natural bacterial consortia and laboratory tests to establish the performance in degradation of hydrocarbons contained in oily ...
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