the polished water storage tank. The pond is given a bed slope of 0.5 in 100, filled with 20mm and downsizes granite metal for a depth of 0.6 m
from the bottom. The outlet to the tank is at about 50 mm lower than gravel line.
The reeds (Cannas spp), which resemble banana plant but with a thin stem are locally available in limited numbers in campus garden, so they were planted in separately prepared nursery yard for 2 months and grown into about a foot near the treatment plant before transplanting them over the gravel bed (Figure 3). Reeds with rhizomes measuring approximately 15cm 3 were planted over the gravel just touching the roots to the effluent, at a density of 4 to 5 clumps per square meter, approximately 30-40cm apart. The compartmentalized wetland is constantly being fed by
a 4 inch pipe leading effluent from the Secondary Sedimentation tank at a HLR of 0.02m3s-1 and a RT of 3hrs.