www.armgroupltd.co.uk t. +44 (0) 1889 583811 natural wastewater treatment www.armgroupltd.co.uk t. +44 (0) 1889 583811 Need The National Botanic Garden of Wales (NBGOW) is a Millennium Commission Capital Project situated in the grounds of an old estate. In 1998 a wastewater treatment system was installed comprising a septic tank, aeration tanks, a Living Machine ® package treatment system and a reed bed. This aging system had a high ener

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