Case Studies

Executive Summary   This report evaluates excavation delineation outcomes for hydrocarbon-impacted soil using a Monte Carlo simulation framework. It compares a conventional lab-only sampling workflow against a Rapid Scan (RemScan) workflow integrated with the GXLab platform. Across thousands of simulated plumes, the analysis shows that increasing vertical measurement density using low-marginal-cost Rapid Scan data materially […]

According to the results of the site investigation, the remediation plan for the site used a combination of biological treatment, soil washing, and thermal treatment. All of the contaminated soil was excavated (down to several metres in some areas), and the appropriate remediation method was chosen based on soil texture, contaminant levels and regulatory targets.

In 2018 Cardno was contracted by a major oil company as Principal Contractor for removal of subsurface hydrocarbon contamination from a protected foreshore area in regional Victoria, Australia. Cardno is a global provider of integrated professional services. Remediation of the site was achieved by establishing an on-site sand washing plant and processing over 70,000 m³

During the emergency response, Ziltek collected soil samples and built a site-specific calibration model in the instrument to allow a rapid and accurate determination of Total Petroleum Hydrocarbons (TPH) C10 to C36. During subsequent remediation works, RemScan was used to measure more than 200 samples per day – this allowed the validation work to be

BACKGROUND Agriculturists are increasingly relying on data to guide land management practises. Further to this, global climate change is providing economic incentives for land owners to increase soil organic carbon stocks in soils to mitigate the amount of CO2 in the atmosphere. In response to these trends, Ziltek is leveraging their expertise in hand-held Mid-Infrared

Fortescue utilises RemScan® for the rapid and accurate measurement of TPH (C10 to C40) in soil. This is preferred to off-site laboratory analysis which, in this remote and harsh environment, is logistically challenging, time-consuming and relatively costly. Fortescue uses RemScan in all aspects of their hydrocarbon management process including: Identifying and delineating spills. In addition

Enviropacific Services was engaged to manage the excavation of the contaminated soil and to validate the pit as ‘decontaminated’ before it was backfilled with clean soil. The handheld RemScan instrument was used to measure Total Petroleum Hydrocarbon (TPH) levels in the soil during the site remediation and excavation process in real-time. The levels of TPH in the worst affected areas were up

In a South Australian metropolitan location, a power transformer was vandalised, leading to a suspected leakage of transformer oil into the surrounding soil. This event necessitated removal of the transformer and inspection of the surrounding soil for contamination. This was a perfect opportunity for a real-world trial of RemScan’s Spill Response Mode, a novel technology

Background The study was conducted in line with the former Environmental Technology Verification (ETV) program that was designed “to provide objective and quality-assured performance data on environmental technologies, so that users, developers, regulators, and consultants can make informed decisions about purchasing and applying these technologies”. Ziltek made a number of claims relating to accuracy (<12% RSD), repeatability (<7% RSD) and detection limit (<250 mg/kg) which were

The lagoons covered more than 4 square kilometres and are situated approximately 60 km south west of Doha in Qatar. The site had previously been used for dumping up to 60,000 m3/day of untreated industrial and municipal wastewater from Doha by tankers over many years. The reclamation and rehabilitation of these lagoons was decided by ASHGHAL because this area was raising environmental concerns