Oxygen BioChem (OBC)TM is a specific blend of persulfate and calcium peroxide that allows for immediate ISCO treatment with pH and H2O2 activation followed by bioremediation. Oxidative reactions are sustained for about two months followed by residual calcium peroxide and sulfates supporting long-term bioremediation. Sulfate BioChem (SBC) is a blend of sulfates and nutrients used to promote anaerobic biological oxidation of organic compounds in groundwater. Both products are discussed.
Aerobic bioremediation enhances dissolved oxygen (DO) contents in groundwater to boost biological degradative activities. IXPER® Calcium Peroxide and Oxygel are two different aerobic bioremediation reagents used at sites with specific conditions: IXPER for high volume injections and Oxygel for in well treatments or where small injection volumes are required. Case studies will demonstrate success of both products used at sites located in Europe.
In situ treatment of contamination in the environmental remediation market has emerged as one of the most sought after options on the road to site closure. Typically when in situ treatment options exist for a subject site, they are less invasive, limit human contact with contamination, and more cost effective. These options offer more implementation flexibility which may involve a wide array of treatment mechanisms ranging from biological, physical, chemical, thermal, electrical or a combination. In Situ Geochemical Stabilization (ISGS®) has been established as a viable treatment option for the stabilization of an array of Dense non-aqueous phase liquids (DNAPL’s), most notably polycyclic aromatic hydrocarbons (PAH’s), chlorinated volatile organic compounds (CVOC’s) and creosotes. The ISGS technology is a field proven product that prevents the flux of DNAPL in a wide range of aquifer conditions while offering a more cost effective and proficient treatment option over conventional cement stabilization technologies. This remediation technology utilizes a permanganate-based solution customized based on site characteristics. This webinar will discuss the chemistry behind the technology, implementation specifics, and subject sites where ISGS was applied successfully.
Complex remediation sites that require source and plume treatment often require multiple technologies and implementation strategies in order to be successful. Sites will be presented where RemOx® L was utilized to treat source area mass using injection or soil mixing techniques and BOS 100® was used to create a permeable reactive barrier downgradient to cut off plume migration. Information regarding the conceptual site model refinement and development, implementation strategy selection (e.g. soil mixing vs. injection), amendment dosing, and results will be presented.
This presentation will cover the storage and safe handling of phosphate products ranging from orthophosphates and zinc orthophosphates to liquid blended poly/ortho phosphates. Topics will include chemistry, material compatibility, storage, handling, proper PPE, and disposal of phosphate-based products.
Carus Corporation is a leader in technical knowledge and manufacturing expertise for both potassium and sodium permanganate brands. A brief product overview of potassium and sodium permanganate highlights recent changes resulting from Globally Harmonized Systems (GHS) requirements. Handling, storage, clean-up, neutralization and disposal are a few additional topics that covered.
Injection below soil fracture pressure is critical to maximize contact and distribution between reagents such as sodium permanganate and contaminants of concern such as trichloroethene (TCE). At a former manufacturing site with TCE-impacted groundwater in Little Rock, Arkansas, Cascade deployed the High-Resolution Injection Tool (HRIT) to evaluate injection pressures, and flowrates to optimize full-scale design parameters during a sodium permanganate injection.
A Superfund Site case study will be used to highlight ways that a combined remedy at a chlorinated solvent site can be optimized to accelerate the remediation timeframe. The remedy at this site is a combination of vapor extraction, excavation, in situ chemical oxidation, and in situ enhanced bioremediation. This webinar will include advice on radius of influence confirmation and high-resolution site characterization.
Permanganate and Persulfate for In Situ Chemical Oxidation and Water Treatment Applications
Geosyntec has developed a novel in situ chemical oxidation (ISCO) method utilizing manganese oxides to activate sodium persulfate (MnAP). This innovative method was developed based on the hypothesis that manganese oxides can activate persulfate as demonstrated in recent academic literature (Mushtaque et al (2010) and Sedlak et al (2014).
Focuses on rapid, high-mass emplacement of RemOx® S ISCO reagent (potassium permanganate) via Controlled Jet Injection, FRx's unique set of tools and methods for on-target distribution of remedial amendments to the target treatment zone. Topics to be covered include treatment rationale and approaches using solid permanganate, emplacement methods in overburden and bedrock, design considerations - dosing, injection point spacing, and injection interval spacing, and project experience at multiple sites.
Several case studies are presented for soil blending with RemOx® S and L ISCO reagents (potassium and sodium permanganate). In all cases, substantial savings over dig-and-haul or thermal treatment were obtained while effectively meeting stringent target treatment levels. In one case, soil blending with an excavator bucket was attempted first at unsatisfactory mixing and treatment results were obtained. In another case, groundwater treatment was obtained from excess permanganate mobilizing from the source treatment area. In the third case, all soil treatment levels were below detection limits.
ABC-Olé is a mixture of emulsified fatty acid esters, fast-acting organic substrate, and pH buffers, all in one product. In most applications, there is no need to purchase and mix additional amendments.
Carus Corporation has been an active participant in the remediation industry since the late 1990s. Our Carus Remediation Technologies (CRT) team is dedicated to the support and growth of in situ chemical oxidation (ISCO), bioremediation, in situ chemical reduction, and other emerging technologies. View our products here