Phosphorus removal from aquaculture wastewater and
by Ceratophyllum demersum
M. Foroughi* and S. Toghiani
Young Researchers Club Islamic Azad University, Khorasgan
Branch, Isfahan, Iran.
*Corresponding author. E-mail:
Treated municipal wastewater; RMW, raw municipal
wastewater; DFL, diluted fresh latex.
Accepted 2 December, 2011
Water pollution has always been a major problem in the
environment. Polluted water is harmful for human health,
thus, there is the need to clean water from polluting
factors. One of the economical and rapid methods for
removing elements is displacement of metals by biosorption.
Three treatments in four replications for purifying
wastewater by Ceratophyllum demersum were designed.
The treatments included raw municipal wastewater (RMW),
treated municipal wastewater (TMW), and diluted fresh latex
(DFL). The experiment was performed in the open air of
Khorasgan University area for 18 days “without aeration” and
18 days “with aeration” after the period of “without
aeration”. The results of the
study indicated that the
phosphorous (P) of TMW (4.48 to 0.53 meq/l), RMW (13.68 to
1.15 meq/l), and DFL (1.2 to 0.21 meq/L) was reduced in each
of the treatments without aeration. In addition, the results
also indicated that P of TMW (0.53 to 0.07 ds/m), RMW (1.15
to 0.39 ds/m), and DFL (0.21 to 0 meq/l) declined in the
treatments with aeration. After this examination, the
accumulation of phosphorous in C. demersum indicated
that the phosphorous in TMW, RMW, and DCL without aeration
increased by 63.67, 16.77 and 5.4% respectively. In another
condition that was used with aeration, the results
demonstrated the concentration of P in TMW, RMW and DFL
treatments that was stored in C. demersum increased
by 2.06, 34.19, and 48.59% respectively.
Pollution, Ceratophyllum demersum, phosphorous.