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Title: Role of sewage phosphorus in coastal water bioenergy production
Authors: Manimaran, B
Ramadhas, V
Santhanam, R
Issue Date: Dec-2000
Publisher: NISCAIR-CSIR, India
Abstract: A study was carried out on the quantity and speciation of phosphorus in a sewage originating from Tuticorin town and discharging the contents in the Fi shing Harbour area. Four prominent peaks were observed in the distribution of total phosphorus and during most of the months the concentration remained above 4 mgP/l. The annual mean contribution of total soluble phosphorus (86.73%) to total phosphorus was higher than that of particulate phosphorus (13.27%). Since all the chemical species of phosphorus are eventually converted in to biologically utilisable form, the anticipated increment in energy production calculated from the stoichiometric composition of plankton [(CH2O)106(NH3)16H3PO4] was to the tune of 1300 tonne C/yr. Assuming that all the three sewages of Tuticorin discharge comparable quantity of wastewater, the anticipated hike in primary energy synthesis was around 3900 × 107 kcal. Considering three trophic levels from phytoplankton production to fish production the extra fish production due to sewage phosphorus was calculated as 132.60 tonne/year. According to Winberg's transformation, the surplus production of bioenergy due to be boosted fishery potential was around 132.6×106 kCl/year.
Page(s): 341-343
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.29(4) [December 2000]

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