Zero-valent iron for contaminated land treatment.
ZVI and EZVI (Emulsified Zero-Valent Iron) technologies for in-situ remediation of chlorinated solvent contamination, heavy metals and industrial pollutants. Single injection, long-term sustained treatment. Suited for brownfield development, industrial sites and groundwater clean-up.
What It Is
Chemical reduction plus biological enhancement.
Zero-valent iron (ZVI) degrades contaminants through chemical reduction — iron particles donate electrons to break down chlorinated solvents such as TCE and PCE into harmless ethene. EZVI (Emulsified ZVI) advances this by encapsulating iron particles in a vegetable oil emulsion. The oil film attracts and concentrates DNAPL contaminants, which then diffuse into the aqueous phase to contact the iron and undergo dechlorination.
EZVI delivers a dual mechanism: chemical reduction acts rapidly while the vegetable oil slowly releases electron donors to support anaerobic microbial activity — providing long-term sustained remediation after a single injection event. The oil film also protects the iron from oxidation, extending its reactive lifespan in the subsurface significantly beyond standard ZVI.
Why It Matters
Why ZVI and EZVI for UK brownfield remediation.
EZVI directly accesses dense non-aqueous phase liquid (DNAPL) source zones that standard ZVI cannot reach. The oil encapsulation concentrates chlorinated contaminants at the iron surface for maximum dechlorination efficiency.
The UK has over 300,000 potentially contaminated sites. In-situ ZVI treatment is non-disruptive — no excavation, no soil removal — making it ideal for brownfield redevelopment programmes.
A single EZVI injection event supports ongoing remediation — the oil phase feeds anaerobic bacteria that continue breaking down contaminants long after the initial chemical reduction phase.
Effective against TCE, PCE, cis-1,2-DCE and vinyl chloride — the most common chlorinated solvent contaminants found on UK industrial and former manufacturing sites.
UK Market Entry
Certified. Compliant. Ready for market.
Bagwell Group is the UK commercialisation partner for ZVI and EZVI remediation technology, developed by Yulin Keli Keying Technology Co., Ltd. The technology has been field-validated for chlorinated solvent contamination and is being introduced to the UK environmental remediation market for brownfield development and industrial site clean-up.
Bagwell Group
Bagwell Group
UK commercialisation partner bringing certified technologies to market.
Get In Touch
Discuss your contaminated site.
Contact us to discuss site conditions, contaminant types and whether ZVI or EZVI is appropriate for your remediation project.