Stresses
to lakes arise from easily identifiable point sources such as municipal and
industrial wastewaters, non-point sources such as urban and agriculture runoff
within a lake’s watershed. Major degrading factors include excessive
eutrophication due to nutrients and organic matter loading from domestic
wastewater. Thus, it is necessary to take a step for management and restoration
of lakes. Looking for a problem, a pilot scale study based on phyto-treatment
concept was setup in National Environmental Engineering Research Institute (NEERI)
laboratory, Mumbai. Treatment efficiency of subsurface phytophil system were
evaluated for pollutant parameters such as total suspended solids (TSS),
biochemical oxygen demand (BOD), nitrogen (N), phosphorus (P) and fecal coliform
(FC). The results indicate high removal efficiencies particularly for BOD, TSS
and FC. Wetland bed was prepared with locally available plants such as elephant
grass and cattails. This technology offers several advantages such as simple
operation, maintenance, economical and environmentally sound treatment of
wastewater as well as for aquatic habitants.
Address:
National Environmental Engineering Research Institute (NEERI),
Mumbai Zonal Laboratory, 89/B, Dr. A. B. Road, Worli. Mumbai-400 018
National Environmental Engineering Research Institute (NEERI),
Nehru Marg, Nagpur-440 020
Phone: (022) 4973521, 4974607Fax: (022) 4936635
E-mail: rakeshmee@rediffmail.com
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