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Soil washing is a remediation technology for the treatment of organically and inorganically contaminated soils. Through a separation process, contaminants along with smaller soil particles are removed from the bulk soil fractions into the process water.
Soil remediation diverts significant amounts of material from landfill – typically 70-80% of the feed material can be potentially recovered as reusable material. Cleansed sand and gravel can be processed to an engineering standard for reuse, reducing further quarrying and need for additional transport. Process water is also recycled and treated during operation.
Besides removing the contaminants from the soil and recovering sand and gravel the remaining bulk soil fractions can be recycled on the remediation site as relatively inert non-hazardous backfill or on any another site.
