2.1. C. esculenta
C. esculenta, used as bioagent in this study, was collected from
marshy lands, banks of streams and canals in the vicinity of
the University campus.
2.2. Domestic sewage-collection and processing
Raw wastewater was collected from a nearby hostel, hotel and
from a few houses. The wastewater was allowed to settle for
about 30min in a fibre-reinforced tank (200 l capacity). The
supernatant was collected after screening and sieving through