ELECTRODIALYTIC REMEDIATION OF AN ARSENIC AND COPPER POLLUTED SOIL - CONTINUOUS ADDITION OF AMMONIA DURING THE PROCESS

摘要

Soil polluted by the wood preservation industry is a serious problem affecting both site use and groundwater quality. The sites are often polluted with copper, chromium and arsenic. Experiments with electrodialytic remediation of soil polluted with Cu (850 mg kg~-10 and As (900 mg kg~-1) from wood preservation have been made. During the remediation process the soil becomes acidified and an experiment showed that due to this acidification As was not removed from the soil probably because As was mainly present as uncharged species.