soil treatment Articles

  • Anaerobic Digestion Reduces Microplastics in Sludge

    Anaerobic digestion can help remove microplastics — a large cause of water pollution — during the sewage treatment process Microplastics, or tiny fragments of plastic, include microbeads, the plastic pellets present in thousands of household and personal care products, including toothpaste, cosmetics, and beauty scrubs. They also include fragments from the breakdown of anything in our ...


    By Fluence Corporation

  • Soil and Groundwater Treatment of PCE

    Project: Treated 100 Cubic Yards of PCE Contaminated Clay Soil and Groundwater Client: Former Dry Cleaners Location: Warren, Michigan Scope of work: In-Situ Bioremediation Source of contamination: Leaking UST Project duration: 2 months ...

  • Soil Treatment of Chlordane

    The following graph illustrates the analytical results of a bio-treatability study conducted on MTBE. A two-liter groundwater sample was collected from the client's service station in western Pennsylvania. We tested three different combinations of microbe and nutrient products in order to determine which products are the most effective. The results indicate that MTBE can be bioremediated by our ...

  • Soil and Groundwater Treatment of MTBE

    Project: Treated 4,200 cubic yards of petroleum contaminated sandy-silty soil and waterClient: Speedy Express Service Station Location: Walterboro, South Carolina Scope of work: In-Situ Bioremediation Project cost: $30,000 (Included only microbial products) Source of ...

  • Impact of pre-treatment technologies on soil aquifer treatment

    This study investigates the impact of pre-treatment options on the performances of soil columns simulating soil aquifer treatment (SAT). For this purpose a conventional activated sludge (CAS) process, a membrane bioreactor (MBR) and vertical flow reed beds were used as single units or in combination before SAT. The influent and effluent from each treatment train were monitored over three ...


    By IWA Publishing

  • 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 ...

  • Soil & Groundwater treatment of Chlorinated Solvents

    Project: Treated 675 Cubic Yards of Chlorinated Contaminated Soil and Groundwater Client: Operating Dry Cleaners Location: Lexington, Kentucky Scope of work: In-Situ Bioremediation Project cost: $7,575 (Included earthmoving, labor, and all bioremediation materials) Source of ...

  • Soil & Groundwater Treatment of Tetrochloroethene (PERC)

    Project: Treated 200-300 cubic yards of Tetrachloroethene contaminated soil and groundwater Client: Dry Cleaners Location: Lexington, Kentucky Scope of work: In-Situ Bioremediation Project cost: $3,500 per treatment (Included products and labor) Source of contamination: Leaking ...

  • Fate of triclocarban during soil aquifer treatment: soil column studies

    There are current concerns about the presence of persistent chemicals in recharge water used in soil aquifer treatment systems. Triclocarban (TCC) has been reported as a persistent, high production volume chemical with the potential to bioaccumulate in the environment. It is also known to have adverse effects such as toxicity and suspected endocrine disruption. This study was carried out to study ...


    By IWA Publishing

  • 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 ...

  • Decision Support System for the Treatment of Contaminated Soil

     Abstract Recent changes in the Dutch legislation have had a great impact on contaminated soil handling. It is now possible to reuse partially cleaned soil which under the former legislation would have to be dumped. In order to provide civil servants, owners of contaminated soil and the soil cleaning industry with a decision support tool to evaluate the new opportunities for cleaned soil ...


  • Bioremediation of ground water by treatment of soil at source with Vaporremed

    A heating oil company during servicing of a home in PA released almost 150 gallons of heating oil that seeped into the basement and below. Ground water was shallow and PA DEP wanted to ensure that the contamination did not pollute the water. The environment company overlooking the cleanup decided to use VaporRemed to reduce the fumes. In three weeks time the level of contamination of the soil and ...


    By Sarva Bio Remed, LLC

  • Common Treatment Technologies for Radionuclides in Soil, Sediment, and Sludge

    Unlike organic contaminants (and similar to metals), radionuclides cannot be destroyed or degraded; therefore, remediation technologies applicable to radionuclides involve separation, concentration/volume reduction, and/or immobilization. The most commonly used treatment technology for radionuclides in soil, sediment, and sludge is solidification/stabilization (S/S). This treatment technology is ...

  • In Situ Biological Treatment for Soil, Sediment, and Sludge

    The main advantage of in situ treatment is that it allows soil to be treated without being excavated and transported, resulting in potentially significant cost savings. However, in situ treatment generally requires longer time periods, and there is less certainty about the uniformity of treatment because of the variability in soil and aquifer characteristics and because the efficacy of the ...

  • Bioremediation replaces “dig and dump” for treatment of pesticides in soil

    Historical usage of organochlorine pesticides (OCPs) such as DDT, toxaphene and dieldrin has resulted in long-term soil contamination, because these substances typically do not degrade naturally at significant rates, so sites are still impacted decades after the end of application. For example, DDT use in Canada ended over 30 years ago, but impacted soil remains at many sites. Such was the case ...


  • Soil treatment by solvent extraction and catalytic hydrodehalogenation

    We investigated the extraction of halogenated hydrophobic organic contaminants (HHOCS) from soil, and the subsequent catalytic hydrodehalogenation of extracted HHOCs. We used water/ethanol mixtures as the solvent and pentachlorophenol and 1,2,4,5–tetrachlorobenzene as target contaminants. The efficiency of extraction improved with increasing contact time and/or increasing ethanol fraction ...


    By Inderscience Publishers

  • Treatment of salt affected soil in the oil field

    Soils, drill cuttings and other solid wastes which are exposed to high levels of salt through spillage from drilling and producing operations, pipe line breaks or leaks, become saturated with sodium. Although the EPA and the industry have demonstrated that the vast majority of such wastes are non-hazardous, in actuality, they have an adverse impact on the fertility of the soil. The degree of salt ...


    By SOS Environmental, Inc.

  • Common Treatment Technologies for Inorganics in Soil, Sediment, and Sludge

    The most commonly used treatment technologies for inorganics in soil, sediment, and sludge include solidification/stabilization (S/S), excavation and off-site disposal, and acid extraction. These treatment technologies are described briefly below. Solidification processes produce monolithic blocks of waste with high structural integrity. The contaminants do not necessarily interact chemically ...

  • Soil aquifer treatment using advanced primary effluent

    Soil aquifer treatment (SAT) using primary effluent (PE) is an attractive option for wastewater treatment and reuse in many developing countries with no or minimal wastewater treatment. One of the main limitations of SAT of PE is rapid clogging of the infiltration basin due to high suspended solid concentrations. Some pre-treatment of PE before infiltration is likely to reduce this limitation, ...


    By IWA Publishing

  • Ex Situ Biological Treatment for Soil, Sediment, and Sludge

    The main advantage of ex situ treatment is that it generally requires shorter time periods than in situ treatment, and there is more certainty about the uniformity of treatment because of the ability to homogenize, screen, and continuously mix the soil. However, ex situ treatment requires excavation of soils, leading to increased costs and engineering for equipment, possible permitting, and ...

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