The invention relates to a water treatment apparatus, method and system for use in the treatment of wastewater or contaminated water, the apparatus including an energisable material or base platform configured and arranged for placement in the flow of wastewater, the platform having a substantial surface area with a media layer suitable for use in hosting bacterial cultures, and further including an energisable layer attachable to the media layer which, when energized with an electrostatic negative voltage charge from a direct current power source, can attract suspended solids in the wastewater and bond aerobic bacterial cultures to the media layer, and whereby additional media can be introduced into the area about the energisable material or layer that can also attract suspended solids thereto.