ApolloTech Awarded for Outstanding Achievements in Green and Sustainable Remediation
Transformation of Oil Depot into a Technology Business Park
Safe Oil Pipeline Removal to Prevent Secondary Pollution
Bioremediation of Significant Polluted Soils Completed Within Two Years
Site Background
Prior to remediation, the site served as a decommissioned oil depot, divided into “black oil” (fuel oil) and “white oil” (diesel) sections for oil product distribution. The supply center played a critical role in relaying oil from the Taoyuan Refinery to the Taichung Oil Supply Center. With shallow geological layers comprised of clay and silt, free-phase oil pollution had spread widely across perched water. At that time, floating oil was collected only via the installation of interceptor wells, which proved inadequate for comprehensive pollution management.
Pollution Status
In 2016, Hsinchu City Government designated this area as a soil and groundwater pollution control site. The primary contaminants in the soil were benzene and TPH*, with MTBE*, benzene, and TPH detected in localized groundwater. Limited soil permeability around shallow pipelines had led to soil contamination primarily within 3.5 meters, while the groundwater table was found 7~8.5 meters below ground. Groundwater contamination was likely due to preferential flow paths within low-permeability soil layers.
Remediation Approach
In 2018, ApolloTech conducted a full-site pollution survey to determine contamination scope and volume, followed by remediation project design and planning in 2020. Remediation was executed from 2021 to 2022, with the project’s completion in 2023 verified by Hsinchu City Government for de-listing. To align the timeline with Hsinchu City’s metropolitan plan for the Hsinchu Science Park X Project, we completed the remediation within two years, enabling successful site development and reuse within the scheduled regulatory timeframe.
Other Achievements
- The site contained numerous legacy pipelines with residual oil. To prevent secondary contamination, ApolloTech incorporated a thorough oil residue cleanup, and non-sparking pipeline removal methods. A total of 700~800 m³, weighing over 500 tons, of decommissioned oil pipelines were removed safely.
- Additionally, the site’s underground structure was filled with mixed construction materials and contaminated soil. To address this, we implemented sifting processes, successfully separating approximately 10,000 m³ of construction materials, thereby significantly reducing soil needing off-site treatment and lowering project costs.
Recognition
Reflecting ApolloTech’s commitment to green and sustainable remediation, the project’s Green and Sustainable Remediation (GSR) strategy and implementation received the 2023 Green Sustainability Site of the Year Award.
Note: *Total Petroleum Hydrocarbons (TPH)
Methyl Tert-Butyl Ether (MTBE)
Key Data
Pollutant | TPH |
Site Area | 54,000 m2 |
Soil Treatment Area | 17,000 m2 |
Groundwater Treatment Area | 7,000 m2 |
Soil Excavation | 57,000 m3 |
Bioremediation Soil Treatment | 24,000 m3 |
Off-Site Treatment | 25,000 tons |
Technology
Polluted Soil Excavation
Soil Replacement