remediation containment Applications

The OVT container is an innovative product and a highly effective tool for the preliminary testing of media/soils that have been impacted by a wide variety of volatile organic contaminants of concern (COC’s). • No preparation or modification needed prior to use in field • Air tight OVT lid has built in sealed sampling ports of varying sizes to accommodate different size OVA probes. • Lids snap together so all samples from one well/boring can be easily grouped together. • Reduced potential for injury to employees due to non-breakable material, lighter carrying weight and no sharp cutting edges as on aluminum foil boxes or use of razor knives; • Lid is recyclable & container is made from an environmentally friendly biodegradable material (corn-based) ; • Disposable container reduces potential for cross-contamination of samples (creating invalid data) due to washing and reusing mason jars from multiple sites; • The OVT cell can be purchased on-line and shipped directly to your office or obtained at a local equipment rental location. • Granted a USPTO patent and accepted by the Florida Department of Environmental Protection-BPSS as an Innovative Technology.

By OVT Environmental Products based in Cape Coral, FLORIDA (USA).

Monitoring VOCs in porewater in the unsaturated zone is now possible.

Sorbisense regularly offers new options for using the patented Sorbicell, which is used to monitor surface water, wastewater and groundwater.

The latest is almost as “ground-breaking” as the SorbiCell itself. Until now it has been difficult, if not impossible, to directly monitor for volatile substances in pore water in the unsaturated zone. But the environmental consultancy firm Ejlskov A/S in Aarhus combined the use of Sorbisense sampling equipment with the proven technology of soil water samplers. With this combination, a practical new method is made available, which allows for monitoring the presence of porewater-dissolved VOCs above the groundwater table. This provides a significantly improved basis to define and determine the leaching risk to the groundwater, and thus allows for better and more cost-efficient decisions to prevent the pollution in reaching the groundwater.

A simple construction with multiple options

The application uses SorbiCell VOC combined with suction cells, soil water samplers. When installed correctly, and applied with the correct procedures, the suctions cells extract capillary bound water from the soil matrix. The system demands no other resource than a container that is put under vacuum. The vacuum in the container then ensures a flow through of the Sorbicell over a period of time, fx. 2-3 weeks. The method is highly suitable for monitoring a site over longer periods of time.

By Sorbisense A/S based in Tjele, DENMARK.

Sodium Hypochorite tanks in double wall (safe tanks), vertical, horizontal, cone bottom or IBC tanks. Poly tanks in sulfuric acid service as well as containment assemblies fully manufactured. Custom Fiberglass (FRP) tanks and on-site fiberglass tank repair of existing FRP tanks.

By Sierra Sales Double Wall Plastic Tanks based in Perkasie, PENNSYLVANIA (USA).

Gas inFusion is a mass transfer operation whereby sparingly soluble gases are dissolved in liquids in a completely bubbleless fashion. The efficiency of this manner of mass transfer allows the production of stable liquid streams containing enormous quantities of dissolved gas on scales ranging from cc/min to thousands of GPM at a fraction of the energy cost normally associated with gas dissolution.

By inVentures Technologies Incorporated. based in New Brunswick, NEW BRUNSWICK (CANADA).

TenCate Geotube technology helps to dewater and contain contaminated sediments in rivers, bays, harbors, marinas, ports, dock facilities, hydro basins and other waterways.  In many cases, these sediments pose significant environmental hazards, and remediation is a difficult and expensive task.

By TenCate Geosynthetics Netherlands bv based in AE in Nijverdal, NETHERLANDS.

Problem: Removing rust, scale and coatings with grit blasting requires containment and/or clean-up, and those costs can have a significant impact on profitability. For contractors doing environmental remediation – removing asbestos or lead paint, for example – the containment issue is even more critical.

By NLB Corp. based in Wixom, MICHIGAN (USA).

InfraCal 2 is the newest addition to the worldwide-recognized Wilks InfraCal line of portable, filter-based infrared analyzers. It provides sub-ppm measurement capability, password protected calibrations and instrument settings, data storage and multiple calibrations, and a touch screen display for more user options. Ideal for measuring oil content levels in FRAC and produced water, fats, oil and grease (FOG) in wastewater, industrial and refinery wastewater effluents, cleaning of metal parats, drill cuttings, containment ponds and remediation sites.

By Spectro Scientific based in Chelmsford, MASSACHUSETTS (USA).

Trivol 102 Regeneration is a natural based absorbent that will soak up all hydrocarbon spills on land. We have super charged our product with millions of microbes that speed up the biodegradation process. Another special additive helps to naturally fertilize the soil to stimulate plant growth and further remediate the affected area. Trivol 102 Regeneration can be added to Trivol 101 Containment after it has been skimmed from water to dry ground.

By Ameret LLC based in Lenexa, MISSOURI (USA).

Construction waste consists of unwanted material produced directly or incidentally by the construction industry. This includes materials that may contain lead, asbestos or other hazardous materials. There is increasing pressure on the construction industry to dispose of this hazardous material in an environmentally responsible manner. Tetronics can help alleviate this pressure by providing waste recovery plants to deal with all types of hazardous wastes generated from a construction projects lifespan: from land remediation through to the treatment of APCs from incineration as well as the treatment of asbestos.

By Tetronics (International) Limited based in Swindon, UNITED KINGDOM.

Sulfide Odor Control Sulfide is found throughout the environment as a result of both natural and industrial processes. Most sulfide found in nature was produced biologically (under anaerobic conditions) and occurs as free hydrogen sulfide (H2S) - characterized by its rotten egg odor. We are most likely to encounter biogenic H2S in sour groundwaters, swamps and marshes, natural gas deposits, and sewage collection/treatment systems. Manmade sources of H2S typically occur as a result of natural materials containing sulfur (e.g., coal, gas and oil) being refined into industrial products. For a variety of reasons - aesthetics (odor control), health (toxicity), ecological (oxygen depletion in receiving waters), and economic (corrosion of equipment and infrastructure) - sulfide laden wastewaters must be handled carefully and remediated before they can be released to the environment. Typical discharge limits for sulfide are < 1 mg/L. Sulfide Treatment Alternatives There are dozens of alternatives for treating sulfide laden waters, ranging from simple air stripping (for the low levels present in groundwaters) to elaborate sulfur recovery plants (used to treat several tons per day at refineries and coal burning power plants). There are processes based on biology (using compost filters, scrubbing media, or inhibition/disinfection), chemistry (oxidation, precipitation, absorption, and combination), and physics (adsorption, volatilization, and incineration). Each process occupies a niche which is often defined by the scale and continuity of treatment, whether the sulfide is in solution or is a gas, the concentration of sulfide involved, and the disposition of the sulfide containing medium. However, for reasons relating to convenience and flexibility, chemical oxidation (using hydrogen peroxide) continues to grow in its scope of application. Treatment with Hydrogen Peroxide While other peroxygens such as permonosulfuric (Caro’s) acid, peracetic acid, and persulfates will oxidize sulfide, their use for this application is overkill. Hydrogen peroxide (H2O2) is considerably simpler and more cost-effective. H2O2 may control sulfides in two ways, depending on the application: Prevention - by providing dissolved oxygen which inhibits the septic conditions which lead to biological sulfide formation; and Destruction - by oxidizing sulfide to elemental sulfur or sulfate ion.

By USP Technologies based in Atlanta, GEORGIA (US) (USA).