Solidification and Stabilization
In-Situ Solidification/Stabilization: Enhancing the performance of cement based systems
In-situ S/S treatment can be more cost effective and more protective of human health and the environment than traditional dig-and-haul remedies. In-situ S/S treatment minimizes excavation and the associated release of volatiles and eliminating the additional costs of landfill disposal. Solidification/stabilization (S/S) prevents or slows the release of hazardous constituents from contaminated media. CETCO provides in-situ treatment additives for cement based S/S projects.
Ex-Situ solidification of sludge, soil or sediment: Meeting disposal criteria
To ensure safe disposal of contaminated media in a landfill, waste must meet certain disposal criteria, ensuring that liquid phase materials are properly solidified. CETCO provides ex-situ treatment technologies that can be used alone or as an additive to cement based mixes. These materials are mixed into waste or contaminated media to render it safe for landfill disposal.
Typical sites using CETCO S/S technologies
- Wood preserving sites
- Manufactured Gas Plant (MGP) sites
- Chemical plants
- Oil refinery sludge lagoons
Low-level rad-waste solidification: Meeting waste disposal criteria
Super absorbent media are used to solidify aqueous low-level radioactive waste (LLRW) and mixed waste (MW) generated by DOE, DOD and other commercial facilities. These products have a strong affinity for water. They are capable of absorption ratios of up to 300:1 by weight with minimum swelling. Through a sorption mechanism, water is bound and converted into a high strength gel, which will retain its disposition throughout transportation and final disposal. The use of CETCO super absorbent media over traditional absorbing agents allows generators of LLRW and MW to significantly reduce their cost for disposal by minimizing the total volume.
ORGANOCLAY PM-200 is a proprietary granular adsorption media effective in removing oils, greases other non-aqueous phase liquids (NAPL) and other dissolved high molecular weight/low solubility organics. ORGANOCLAY PM-200 is specially formulated for use in the following applications; Bulk Sediment Capping and in Permeable Reactive Barriers (PRBs).
ORGANOCLAY PM-199 is a proprietary granular adsorption media effective in removing oils, greases other non-aqueous phase liquids (NAPL) and other dissolved high molecular weight/low solubility organics. ORGANOCLAY PM-199 is specially formulated for use in the following applications; Organophilic Filtration Media, Bulk Sediment Capping and as a Solidification/Stabilization additive.
ORGANOCLAY MRM is a sulfur-impregnated organophilic clay granular filtration media that adsorbs non-aqueous phase liquids (NAPL) and dissolved low-solubility organics. It also sequesters mercury and arsenic from water.
ORGANOCLAY SS-199 is a semi-granular adsorption media effective in removing oils, greases other non-aqueous phase liquids (NAPL) and other dissolved high molecular weight/low solubility organics. Organoclay SS-199 is specially formulated for use in in situ solidification.
QUIK-SOLID® super adsorbent polymer
QUIK-SOLID super adsorbent polymer is a solid, granular cross-linked polyacrylate advanced superabsorbent media that rapidly absorbs and retains large volumes of fresh water aqueous solutions. Its absorptive properties are ideally suited for the absorption and solidification of hazardous and non-hazardous waste waters, soils, and semi-solid matter. This high efficiency absorbent is capable of absorbing up to 250 times by weight of aqueous matter and reduces waste disposal costs by minimizing volume expansion to less than 1%.
QUIK-SOLID® 50 super adsorbent polymer
QUIK-SOLID® 50 super adsorbent polymer is a custom blend of granular cross-linked polyacrylate superabsorbent polymer and ORGANOCLAY. This high performing product rapidly absorbs and retains large volumes of aqueous solutions, while also offering a hydrophobic component to adsorb low soluble organic matter. The absorptive properties of QUIK-SOLID 50 are ideally suited for the solidification of wastewater, sediments and semi-solids containing organic laden contaminants.
QUIK-SOLID® Booms are a higher performing alternative to traditional cellulose absorbent products that are utilized for hazardous, non hazardous and low level radioactive waste disposal. QUIK-SOLID super absorbent media and a cellulose filler material are packaged in a closed nylon sock to ensure maximum polymer retention and absorbency. The sock can be cut to size and placed in drums, boxes intermodal and other transport containers for solidification of aqueous matter and condensation control.
QUIK-SOLID Mats are a high-performing yet lower cost alternative to other absorbent fabric products that are used in the hazardous waste or nuclear waste disposal industry. QUIK-SOLID Mats are made with polyester fabric layers bonded together with a special polyolefin adhesive. The QUIK-SOLID granular absorbent polymer is embedded between the layers of fabric and the entire laminate structure is made of non-biodegradable materials.
DNAPL STABILIZATION USING ORGANOCLAY
The Atlantic Wood Industries (AWI) site is approximately 48 acres of land on the industrialized waterfront of Portsmouth, Virginia, along the Southern Branch of the Elizabeth River. From 1926 to 1992, a wood treating facility operated at the site using both creosote and pentachlorophenol (PCP).
WEST DOANE LAKE
Clean-up action was approved by the DEQ for contaminated sediments in West Doane Lake at the former Rhone Poulenc pesticide manufacturing facility site located in Northwest Portland. The objectives of the remedial plan include protection for people and wildlife, and to reduce or eliminate potential leaching of contamination from sediment into the sediments.