Contaminated Soil Remediation
Wet processing technology that turns contaminated soil into safe, reusable sand and aggregates.
Contaminated soil remediation processes excavated soil so it no longer poses a risk to human health or the environment, and in many cases makes it fit for reuse. CFlo soil washing plants recover high-quality washed sand and aggregates from contaminated feeds, processing almost 20 million tonnes a year worldwide, including the world's largest contaminated soil washing plant in New York.
Why soil remediation demand is growing
Soil remediation on contaminated land is in greater demand due to increased knowledge of current and emerging contaminants, and an ever-increasing demand for urban housing. Brownfield sites and areas polluted by metals are increasingly being used as locations for redevelopment.
Left untreated, contaminants leach into water sources, directly contaminating drinking water or bio-accumulating in animals and eventually entering the food chain. Excavated soil contains various types of contaminants that must be removed before the end materials are suitable for reuse.
What CFlo soil washing delivers
- Reduction of harmful contaminants
- An economical alternative to multi-treatment or disposal processes
- Production of high-quality washed construction sand and aggregates for reselling and reuse
- A lower carbon footprint, by producing recycled sand and aggregates closer to the market
Proven at global scale
CFlo is currently processing almost 20 million tonnes of contaminated soil and various streams of construction and demolition waste every year across the world. The portfolio includes the world's largest contaminated soil washing plant, in New York. The related CFlo platform for soil remediation duty is the Reurban waste recycling system.
Frequently asked questions
What is soil washing and how does it work?
Soil washing is a wet processing technology that treats excavated contaminated soil so it no longer poses a risk to human health or the environment. The process separates and washes the soil fractions, reducing harmful contaminants and recovering clean construction sand and aggregates that are fit for reuse.
Is soil washing cheaper than disposal?
Yes, in many cases. Soil washing is an economical alternative to multi-treatment or disposal processes: instead of paying to landfill contaminated soil, you recover washed sand and aggregates that can be resold or reused, and you cut haulage by producing recycled material close to the market.
What can the recovered sand and aggregates be used for?
CFlo soil washing plants produce high-quality washed construction sand and aggregates suitable for reselling and reuse in construction. Producing these recycled materials near the point of demand also reduces the carbon footprint of the overall operation compared with quarrying and transporting virgin material.
How much contaminated soil does CFlo process worldwide?
CFlo plants are currently processing almost 20 million tonnes of contaminated soil and various streams of construction and demolition waste every year across the world. The reference portfolio includes the world's largest contaminated soil washing plant, located in New York.
Why is contaminated land being redeveloped now?
Increased knowledge of current and emerging contaminants, combined with rising demand for urban housing, is pushing developers towards brownfield sites and metal-polluted land. Remediation makes these sites safe: without it, contaminants can leach into drinking water sources or bio-accumulate through the food chain.
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