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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Traveling to India for the installation of a VacuDry 3,000 for the treatment of mercury contaminated soil
Environmental pollution doesn't take a break during Corona. So at econ we decided to continue with the commissioning plan and therefore the support of our partner in India. Under strictest health & safety measures, including frequent PCR tests and quarantine, two of our econeers set out to India to commission a VacuDry 3,000 for the ex-situ on-site treatment of mercury contaminated ...
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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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Characterisation of medical-waste sterilisation-plant wastewater and a preliminary study of coagulation–flocculation treatment options
Wastewater from a medical-waste sterilisation plant (MWSP) contains unique pollutants and requires on-site treatment to prevent contamination of the municipal sewage system and receiving water bodies. Therefore, to meet the prescribed discharge standards and comply with the legal regulations, pre-treatment must be applied to MWSP wastewater. In this study, the capabilities of ...
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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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World War II Memorial, DC - Case Study
In 2003, AdEdge Water Technologies began working closely with EarthTech, the assigned engineering firm responsible for specifying and selecting the various water treatment systems serving the new National World War II Monument in Washington, DC. Stormwater and groundwater control and treatment are essential aspects of this project given the location of the site on the Mall adjacent to the ...
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World War II Memorial, DC Iron & Manganese Reduction - Case Study
In 2003, AdEdge Water Technologies began working closely with EarthTech , the assigned engineering firm responsible for specifying and selecting the various water treatment systems serving the new National World War II Monument in Washington, DC. Stormwater and groundwater control and treatment are essential aspects of this project given the location of the site on the Mall adjacent to the ...
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In-Situ Treatment - Funnel & Gate System - Case Study
Problem An asphalt testing facility, in operation for many years, closed in the early 1990s. A subsequent environmental assessment revealed that an underground storage tank, used to hold common cleaning/degreasing solvent for use during testing, had developed a leak and had to be abandoned. The storage tank and soil in the immediate vicinity was removed as the first step to remediate the site. ...
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How Sinopec Turns Truckloads of Drilling Mud into Profit
Discover how China's largest drilling company makes money from oily waste. Previously, Sinopec had to constantly move their highly contaminated drilling waste to a centralized treatment site and deal with demanding environmental regulations. Now, all oil waste is treated on-site, right where it is produced — resulting in sellable hydrocarbons, reusable water and clean solid effluent. ...
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