Greywater Management in Low and Middle-Income Countries - SSWM

Ivy Banks Hotel
Kitchen
Laundry
Bath
Septic tank
Anaerobic filter
HRT = 1.5 d
Percolation bed
A=0.2m 2 /p.e.
h=1m
Grease and
grit trap
Percolation bed
A=0.2m 2 /p.e.
h=1m
Ivy Banks, a small tourist guesthouse situated on Lake Kandy, set up a
greywater treatment system at the request of the Kandy Municipal Council. The
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kitchen wastewater and the second other greywater.
media with a nominal diameter of 12 to 50 mm). The
(0.2 m 2 /p.e., 1 m height) into the ground. The second
system comprises a grease and grit trap followed by
a percolation bed (0.2 m 2 /p.e., 1 m height). Setting up
two greywater treatment systems is less expensive than
excessive plumbing costs for a combined treatment
system.
After four months of operation the treatment system was reported to function well,
however, detailed information was not provided. Initially, the second system included
only a percolation bed without pretreatment. Due to clogging of the percolation bed,
the grease and grit trap was installed at a later stage.
Laundry
Kitchen
Grease and
grit trap
Septic tank
Anaerobic filter
HRT = 1.5 d
Dosing
chamber
Vertical-flow planted filter, unlined
A = 0.2 m 2 /p.e.
h = 0.6 m
Coral Sands is a beachfront hotel located in Hikkaduwa, on the southwest coast
of Sri Lanka. Both blackwater and greywater of the hotel were previously treated in
Examples of Greywater Management Systems
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