The Anaerobic Advantage: Cheaper. Cleaner. Better. Faster.
BioStryke’s anaerobic processes leverage existing environmental conditions. Depending on the level of contamination, soil conditions usually become anaerobic —an ideal environment for the effective deployment of BioStryke’s solutions.
BioStryke™ ERDENHANCED™ eliminates the need for above-ground, energy consuming equipment necessary to maintain aerobic conditions in a contaminant driven anaerobic world. Furthermore, by eliminating site equipment you also eliminate the generation of noxious exhausts and nuisance noise emissions.
With BioStryke™ ERDENHANCED™, only a single injection program is required to create a sustainable site condition conducive to contaminant destruction. Our clients realize numerous short and long-term cost reductions including site security costs, equipment and generator rentals, fuel to run the machinery, and maintenance.
Our anaerobic processes expedite site compliance by destroying not only dissolved phase and sorbed mass contaminants, but also residual source mass contaminants so typically resistant to aerobic based treatment strategies. BioStryke’s processes effectively eliminate rebound and greatly reduce the threat of indoor ambient air quality concerns associated with the generation of cVOC/VOC daughter products and TPH related indoor air quality contaminants.
BioStryke’s anaerobic advantage provides remediation solutions that are cheaper, cleaner, better, faster.
Ex-situ and In-situ Solution
There are many types of soil and groundwater remediation strategies. They include both in-situ and ex-situ applications, on and off-site, respectively.
With respect to the remediation of soil, the fastest but not always most cost-effective method involves the excavation and off-site transportation of the contaminated soils.
By contrast, an in-situ cleanup allows the contaminated soil to be treated onsite. However, it generally takes longer and often has less certainty about the uniformity of treatment due to the inherent variability in soil and aquifer characteristics. Such a process requires the injection and/or infiltration of a remedial formulation, i.e. amendment, directly into the subsurface where the contaminants of concern (contaminant drivers) are present. This area of contamination — laterally and vertically in space — is referred to as the contaminant plume. Monitoring a soil in-situ cleanup progress can be difficult in that it requires the advancement of soil test borings augmented by the collection and analytical testing of soil samples from within and adjacent to the treatment zone to verify amendment efficacy and determine the status of site compliance. Furthermore, in-situ soil remediation projects often require the installation of an engineered subsurface treatment system (pipes, wells, etc) to allow amendment deployment and the provision of other sustaining products such as moisture, heat, nutrients, and/or air. The appurtenances associated with traditional in-situ bioremediation often result in visual pollution along with noise, exhaust, and odors—matters of concern in both urbanized neighborhoods and rural site locations.
Soil remediation may also be performed using ex-situ technologies, at both on- and off-site locations; however, regardless of where the material is to be treated, excavation of the contaminated soil is required. The excavated soil is then either transported to a remote site or staged on-site, in a controlled manner to prevent cross-site contamination, for treatment. Although there are the additional excavation and on-site management costs, economies are realized by rendering the soil homogeneous, distributing the contaminants to increase their bioavailability, and allow for the even application of amendment. Additionally, the staging of the contaminated soils allows for the installation of treatment assistance systems (percolation pipes, wells, extraction vents, etc) to create a more perfect system in which the microorganisms can subsist and replicate and effectively enhance contaminant degradation. The treatment assistance systems, as noted above, also allow for the routine provision of other sustaining products such as moisture, heat, nutrients, and/or air; however, like those associated with in-situ remedial systems, this requires the use of energy consuming appurtenances which often results in the production of nuisance noise, exhaust, and odors, a concern in both urbanized neighborhoods and rural site locations. The benefit associated with onsite ex-situ bioremediation is that you are treating a consistent waste stream in a controlled environment minimizing risk and treatment unpredictabilitly. As a result, it is typical that soil contaminants can be treated to established site goals and/or regulatory requirements within a relatively short time.
Ex-situ remediation of contaminated soils, be it on-site or off-site, has the added bonus of removing the source of further site and/or off-site impact (the bulk of contaminants) before they can migrate and impact abutting properties. Ex situ treatment makes sense when there is some urgency, and is often combined with in-situ remediation of groundwater when soil contamination is present below the water-table. This is because the excavation of contaminated soils present below the water table is typically not permitable without costly water control, dewatering, collection, treatment, and discharge planning.
Currently, ex-situ, off-site remediation remains the most commonly used method with respect to vadose soil contaminants. The off-site transportation and disposal of the excavated materials is far and away more common than excavation and on-site treatment, even though it is typically more costly. This is particularly true when real estate values are higher and the properties are transacting more frequently than what we are experiencing today. With the slower market, owners and generators of environmentally challenged properties are looking for remedial strategies that are innovative, less intrusive, and more cost effective.
Groundwater can also be treated on-site or off-site using in-situ and/or ex-situ remediation technologies.
Ex-situ remediation of groundwater is typically referred to as ‘Pump and Treat’ technology. The process entails drawing impacted groundwater from the subsurface to the ground surface where it can be collected, stored, transported off-site or remain on-site for treatment. This process requires the installation of recovery and injection wells, the construction of above ground storage and/or treatment facilities, and can require multiple decades for a site to reach compliance with current regulatory standards. Pump-and-Treat has traditionally been applied to the collection and treatment of both dissolved phase and pooled non-aqueous phase liquid (NAPL) contaminants and used effectively in preventing further contaminant migration; however, recent evidence is demonstrating Pump-and-Treat systems are not entirely effective long-term with either dissolved phase or sorbed, residual source, contaminant mass.
Like traditional oxygen injecting/enhancing in-situ and some ex-situ soil remediation processes, the use of above ground energy consuming appurtenances is required which adds costs and often results in visual concerns and the production of nuisance noise, exhaust, and odors; concerns to both urbanized neighborhoods and rural site locations.
In-situ groundwater remediation, in the traditional sense, is similar to in-situ soil remediation in that amendment needs to be introduced to the subsurface where it can come into contact with the microbials and/or contaminants present to effect contaminant destruction, be it via microbial respiration or degradation. Furthermore, typical in-situ groundwater remediation often requires the use of above-ground fixed appurtenances to sustain the contaminant ecosystem.
Non-traditional in-situ groundwater remediation eliminates the need for above ground energy consumption, while working anaerobically to enhance the environment such that either contaminant destruction or respiration can be achieved. In-situ groundwater remediation addresses dissolved and sorbed phase contaminants in addition to residual source contaminated mass. Where a DNAPL is present, above ground recovery (Pump-and-Treat) may still be required; however, BioStryke’s in-situ formulations often work in concert with other Pump-and-Treat systems, as well as with soil excavation projects (as noted above), Biodegradation passively-aggressively destroys any contaminants left behind in saturated soils below the water table.