Compliance with new legislation in Europe and United Statesrequires retrofitting of scrubbing technology on a large Number ofexisting waste-to-energy plants to control emiss- Sions of acidgases, dioxins/furans and heavy metals, espe- Cially mercury. Thispaper describes the gas suspension absorber(GSA) dry scrubbingtechnology developed by FLS miljo a/s, Den- Mark. GSA is a newgeneration of the semi-dry technology Utilizing a circulatingfluidized bed as absorber for acid Gases, dioxin and heavy metals.
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