Case study: Successful self-activating ISCO / enhanced bioremediation for BTEX remediation – Soil mixing Brazil site.
Case presented at Battelle´s Fifth International Symposium on Bioremediation and Sustainable Environmental Technologies in April 15-18, 2019, in Baltimore, Maryland.
A former gas station site Campinas/São Paulo was contaminated by BTEX and acquired by a developer to construct residential condominiums. The project used Provect-OX® in situ chemical oxidant reagent for ISCO/enhanced bioremediation reagent that uses ferric iron (Fe III) as a safe and effective means of activating persulfate. In April 2017 contaminated soil was excavated and removed. Approximately 5,000 kg of Provect-OX were mixed directly into the base and side walls of the excavation within an area measuring 170 m2. The first sample event performed 30 days after application showed Benzene reduction higher than 99%. Subsequent sample events showed that the remedial objective was achieved.
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