We would recommend a ...
Published by Edward Blackmore, Techfil (Europe) Ltd - Director - Water Treatment Division
We would recommend a biofilter loaded with pumice odour control media. We have supplied this media throughtout Europe and get removal rates for H2S of 98%+.
Please see our website for further information: http://www.lava-rock.com/lava-rock-odour-control/
Eddie