Showing results for: in-situ contaminated soil Articles
-
In Situ Treatment Technologies for Contaminated Soil
Compared to excavation and ex situ treatment, the use of these technologies offers several benefits, such as addressing deep contamination and generally costing less. The summary for each in situ technology includes a basic description of the technology, its implementation, applicability based on contaminants and site characteristics, general limitations, costs, and status of the ...
-
Successful In Situ Remediation of Hydrocarbon Contaminated Soils in South Africa
Location: PepsiCo Frito-Lay Simba Isando, Gauteng, South Africa Use of the vehicle workshop area at the Frito-Lay Simba Isando plant was discontinued due to outsourcing of the distribution chain. An area in front of the wash bay bordered by the workshop and boundary walls had been heavily contaminated by hydrocarbon. This contamination was a mix of petroleum (PRO) and diesel (DRO) range organics ...
-
What is Environmental Remediation?
Environmental remediation is cleaning up hazardous substances by removing, treating, and containing pollution or contaminants from environmental media like soil, groundwater, and sediment. This process is crucial for protecting the environment and public health by reducing the presence of harmful substances[1][2][3]. Remediation can involve various methods categorized as ex-situ (excavation and ...
-
Treatment Method of Crude Oil Contaminated Soil: Pyrolysis
Introduction to Crude Oil Contaminated Soil Definition and Causes of Crude Oil Contamination Crude oil contamination in soil occurs due to accidental spills, leaks, or improper disposal in various industrial activities. The complexity of hydrocarbons in crude oil poses a significant challenge in soil remediation efforts. Environmental Impact of Crude Oil Contaminated Soil This contamination ...
-
Electrokinetic Separation
Introduction The principle of electrokinetic remediation relies upon application of a low-intensity direct current through the soil between ceramic electrodes that are divided into a cathode array and an anode array. This mobilizes charged species, causing ions and water to move toward the electrodes. Metal ions, ammonium ions, and positively charged organic compounds move toward the cathode. ...
-
Surfactant enhanced in-situ remediation of DNAPL impacted soil and groundwater - Montreal refinery
Abstract A Montreal chemical refinery reduced the dichlorobenzene and other dense non-aqueous phase liquid (DNAPL) impacts on the soil and groundwater where a railway line is adjacent to an above ground storage tank farm. Ivey-sol® surfactant mixtures were injected three times during a two week pilot test, into a series of in-situ wells. The soil and groundwater matrix experienced an induced ...
-
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 ...
-
A Feasibility Study for Assessment of In-situ Bioremediation Potential of a Crude Oil Degrading Pseudomonas Consortium
Following is a link and abstract for an article published in the Journal for Scientific Research wherein a Pseudomonas consortium isolated from a site contaminated with crude oil was applied and effectively used to remediate the same contaminated site under particular environmental conditions. Link to pdf: http://www.banglajol.info/index.php/JSR/article/view/2601/3361 A Feasibility ...
-
Decreasing lead bioaccessibility in industrial and firing range soils with Phosphate-based amendments
In–situ stabilization using phosphate (P) amendments, such as P-based fertilizers and rock, are a potentially cost-effective and minimally disruptive alternative for stabilizing Pb in soils. We examined the effect of time (0–365 d), in vitro extraction pH (1.5 vs. 2.3), and dosage of three P-based amendments on the bioaccessibility (as a surrogate for oral bioavailability) of Pb in 10 soils from ...
-
Metals Stabilization Using Geochemical Fixation
Introduction To Chemical Fixation There are several approaches to treatment of chromium and other toxic metals such as lead arsenic, and cadmium in soil and groundwater, including isolation, immobilization, toxicity reduction, physical separation, and extraction (U.S. EPA. 2002). Brief Overview Of Metals Remediation Methods: Conventional Methods: Conventional approaches to ex-situ remediation ...
-
KB-1® Bioaugmentation Leading to Site Closure
Problem DefinitionIn 2004, the site was an active manufacturing facility with plume trichloroethene (TCE) concentrations ranging from 1 to 20 milligrams per liter (mg/L), and hexavalent chromium (Cr[VI]) ranging from 0.5 to 7 mg/L. Intermediate degradation products of TCE were present in only trace concentrations in this primarily aerobic aquifer. The site source area was excavated in March 2004, ...
By SiREM
-
Fast BTEX and methylnaphthalene bioremediation
Petrox Petrox and Methylnaphthalene Bioremediation Site Summary Petrox micorbes accelerated BTEX and methylnaphthalene bioremediation at a former fueling station in Florida. After a leaking tank underground storage tank (UST) was removed Petrox micorbes were applied to the groundwater. A temporary well showed high concentrations of BTEX, methylnaphthalene isomers, and total recoverable ...
-
Common Treatment Technologies for Nonhalogenated SVOCs in Soil, Sediment, and Sludge
Common treatment technologies for nonhalogenated SVOCs in soil, sediment, and sludge include biodegradation, incineration, and excavation with off-site disposal. All types of biodegradation, both in situ or ex situ, can be considered to remediate soils: in situ bioremediation, bioventing, composting, controlled solid phase, or landfarming. Slurry phase biological treatment is also applicable ...
-
Ex Situ Thermal Treatment for Soil, Sediment, and Sludge
The main advantage of ex situ treatments is that they generally require shorter time periods, and there is more certainty about the uniformity of treatment because of the ability to screen, homogenize, and continuously mix the soils. Ex situ processes, however, require excavation of soils leading to increased costs and engineering for equipment, possible permitting, and materials handling worker ...
-
In-situ remediation of Polycyclic aromatic hydrocarbon contaminated soils - New Jersey, USA case study
Executive Summary A New Jersey utility company operated a regulator station on the site of a former manufactured gas plant in central New Jersey. The gas transfer station contained a large natural gas feeder main that fed major population centers in the southern part of the state. The regulator station contained an area approximately 3,600 ft2 contaminated to a depth of 1 meter with both PCBs and ...
-
Common Treatment Technologies for Halogenated SVOCs in Soil, Sediment, and Sludge
Common treatment technologies for halogenated SVOCs in soil, sediment, and sludge include biodegradation, dehalogenation, incineration, and excavation with off-site disposal. All types of biodegradation, both in situ or ex situ, can be considered to remediate soils: in situ bioremediation, bioventing, composting, controlled solid phase, or landfarming. Slurry phase biological treatment is also ...
-
Surfactant enhanced aquifer remediation (SEAR) using Ivey-sol surfactant technology
This paper will focus on the application of Ivey-sol non-ionic surfactant technology to improve the in-situ remediation of petroleum hydrocarbon contamination is soil and bedrock aquifers. Normally hydrophobic organic chemicals (HOC) exhibit limited solubility in groundwater as the contaminants tend to partition onto the soil and bedrock matrix. This partitioning can account for as much as ...
-
Common Treatment Technologies for Fuels in Soil, Sediment, and Sludge
Common treatment technologies for fuels in soil, sediment, and sludge include biodegradation, incineration, SVE, and low temperature thermal desorption. Incineration is typically used when chlorinated SVOCs are also present with fuel, and not specified for fuel-only contaminated soil, sediment, or sludge. All types of biodegradation, both in situ or ex situ, can be used to remediate soils: in ...
-
A Citizen`s Guide to Bioremediation
What is bioremediation? Bioremediation is a treatment process that uses naturally occurring microorganisms (yeast, fungi, or bacteria) to break down, or degrade, hazardous substances into less toxic or nontoxic substances. Microorganisms, just like humans, eat and digest organic substances for nutrients and energy. In chemical terms, 'organic' compounds are those that contain carbon and hydrogen ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you