Pollution Remediation for an Abandoned Dye Factory in Xinzhuang

Site Background

The site is a former dye and pigment manufacturing facility located in Xinzhuang District, New Taipei City, near Fu Jen Catholic University.

Pollution Status

In 2007, the Environmental Protection Bureau of New Taipei City Government designated the site as a control site for soil contamination, mandating remediation within a set timeframe. Primary pollutants included copper in soil, with 1,4-dichlorobenzene and chlorobenzene contamination in groundwater, affecting an area of 6,400 m².

Remediation Approach

In 2008, ApolloTech was contracted to lead the site’s remediation project. Through thorough supplemental investigations, laboratory analysis, and strategic remediation planning, the restoration and cleanup were completed by 2010. Verified by the Environmental Protection Bureau of New Taipei City Government, the site was subsequently removed from the control site list, and the land was successfully returned to productive use for the client.

Application of Advanced In Situ Injection Technology

ApolloTech conducted a comprehensive assessment of the site’s DNAPLs pollution distribution and applied the innovative in situ injection method. Based on the site’s hydrogeological profile, we deployed In Situ Chemical Oxidation (ISCO) and enhanced aerobic biodegradation in distinct remediation zones to achieve complete and effective restoration.

*DNAPLs: Dense Non-Aqueous Phase Liquid, typically chlorinated hydrocarbons or petroleum-based pollutants