5
THEY CONTAIN, USE AND TREAT ALL HOUSEHOLD SEWAGE
An Earthship reuses the household water and the sewage is contained and treated in botanical cells.
earthshipsweden.com
F R E S H W AT E R R E C Y C L I N G An Earthship uses its fresh water four times: 1. The water is first used by the residents for bathing, washing, laundry and other household needs 2. The greywater (water from bathing, dishes and laundry) is used to water the greenhouse plants 3. The same water, now purified from any color and odor, is used to flush the toilet 4. The black water (water from the WC's) is sent to a septic tank and finally used to water the outdoor plants
START
END
5
G R E Y W AT E R T R E AT M E N T The greywater is passed through the rubber lined botanical cells in the greenhouse. The water passes through a number of cells with selected plants that treat and clean the greywater. In the lower part of the final botanical cell the water passes through a series of filters. This water can now be pumped through a charcoal filter to flush a conventional toilet.
5
I N D O O R B O TA N I C A L CELLS UNDER CONSTRUCTION
earthshipsweden.com
B L A C K WAT E R T R E AT M E N T Black water is water from the household toilets. The water is flushed into a septic tank where the solid waste is broken down to liquid through an anaerobic process. Thereafter, the water is sent to the outdoor botanical cells or the outer greenhouse. These cells are designed to have completely absorbed the water by the time it reaches the last cell.
BOTANICAL CELLS OUTSIDE BOTANICAL CELLS INDOOR
5
O U T D O O R B O TA N I C A L C E L L S A N D S E P T I C TA N K UNDER CONSTRUCTION
earthshipsweden.com