The contamination of soils as a result of prior chemical production can often be unpredictable and diverse. The majority of such pollutants will require an ex-situ treatment method. Many of our VacuDry units can be used for direct-feeding contaminated soils. To reduce the input amount for thermal treatment, the VacuDry units can also be used in combination with soil-washing plants: In this case, customers only feed the high polluted fractions and screened fines (e.g. below 10 mm), as well as the filter-cake from...
Contaminated soil and building-rubble can be efficiently treated with VacuDry technology, including a diverse range of toxic and hazardous substances. VacuDry units also have low emissions and low power consumption, making on-site treatment with our mobile units both economically and environmentally sound.
The use of H2O2 to chemically oxidize the contaminants into mineralized products (CO2 , salts, and readily biodegradable organic fragments) offers a number of advantages over these current treatment methods.
Benefits of Soil Decontamination by Chemical Oxidation:
The reagent used (H2O2) is inexpensive, readily available, and has as its reaction products water and oxygen;
The chemistry of the process (Fenton's Reagent) has been known for over 50 years and its applicability to a wide variety of contaminants is...
Please see files for more information. The following mechanisms of direct bacteria-uranium interactions are described: i) oxidation of U(IV) to U(VI) resulting in solubilization; ii) bioaccumulation, which includes processes of bio-sorption by cell surface iii) reduction of U(VI) to insoluble U(IV); polymers and/or uptake inside the cells. iv) The U(VI) accumulated both on the bacterial surfaces or inside the cells as well as biologically reduced U(IV) precipitates can initiate bio-mineralization processes, which...
Several industries and industrial processes may contribute to soil and groundwater contamination. AdEdge Technologies has supplied filtration equipment for several remediation efforts to remove arsenic, lead, and other inorganic contaminants to meet state and federal mandates.
Today bioremediation is successfully used as soil– and groundwater remediation technology. Many bioremediation systems, both in-situ as ex-situ techniques, usually result in considerable cost savings. Since the beginning of the 1980’s both in-situ and ex-situ bioremediation projects have been successfully completed worldwide through the use of preselected and adapted bacteria. QM Environmental Services supplies a range of microbial, bioactivator and nutrient products and gas delivery systems for the use in both...
Nanoremediation represents a modern method of treatment of environment polluted by chlorinated hydrocarbons, heavy metals, radionuclides and other contaminants. This technology started to be used tentatively in USA and it already takes place on various sites around the world at present.
Please see files for more information.
The following mechanisms of direct bacteria-uranium interactions are described:
i) oxidation of U(IV) to U(VI) resulting in solubilization;
ii) bioaccumulation, which includes processes of bio-sorption by cell surface
iii) reduction of U(VI) to insoluble U(IV); polymers and/or uptake inside the cells.
iv) The U(VI) accumulated both on the bacterial surfaces or inside the cells as well as biologically reduced U(IV) precipitates can initiate bio-mineralization processes,...
Lime treatment has several beneficial effects on soils and industrial sludge wastes that in turn provide benefits to other commercial sectors such as agriculture, landfill operations and land development.
ENTACT is the industry leader in the management and treatment of heavy metal impacted soil, sludge, and debris. Approximately half of the projects we have completed over the past 21 years have involved metals. These projects have included soil and sediment removal, residential cleanups, smelter closures, earthwork/mine reclamation, and decontamination and demolition of mine and mill structures at both active and abandoned facilities. ENTACT holds seven patents related to treatment of heavy metal impacted materials.
`Water should never be treated as a nonrenewable resource; it should always be treated with the respect it deserves as the foundation of life on the planet.` Most water on earth is in a continuous cycle between water bodies, land and the atmosphere. An important component of smart water solutions is the cycling of water treatment solutions using processes by which water enters, moves through and exits soil are essential for sustaining plants and soil organisms, transporting nutrients and recharging surface and...
In 2004-2005 LIFETECH`s laboratory worked out an advanced oxidation process (AOP) for removal of dioxins and furans (PCDD/F), chlorophenols and other contaminants from the BCD process wastewater. Consequently, our technology was installed and from April 2006 successfully used in the `Spolana-Dioxins` Project at SPOLANA a.s. in Neratovice, Czech Republic, as a part of Special Wastewater Treatment Plant. Our supply consisted of an ozone generator with the output of 5 kg O3/h at 10% w/w ozone concentration, two...
- Remediation of 600 former production or release sites transecting four counties
- Treatment of over 500,000 cubic yards of petroleum impacted soils from the various site areas in an 8-acre bioremediation landfarm
- Remediated soils are then re-used as backfill throughout the disturbed areas
Due to the continuous rise in the waste volumes worldwide it is essential constantly to seek alternatives to landfills and waste incineration: one suitable approach is bio-mechanical waste treatment. Apart from waste management, applications for air purification systems in this field range from soil remediation to sewage sludge drying in waste water treatment, as well as to the recycling of resources and their possible re-introduction.