TITLE:
Form Distribution Characteristics of Nitrogen in a Reservoir as Drinking Water Source
AUTHORS:
Lahua Jin, Chen Zhao, Jiayi Wang
KEYWORDS:
Nitrogen Form, Reservoir for Drinking Water Source, Eutrophication, Dissolved Organic Nitrogen
JOURNAL NAME:
Journal of Environmental Protection,
Vol.7 No.13,
December
16,
2016
ABSTRACT: Based on field detected
water quality data, the distribution characteristics of different forms of
nitrogen in a reservoir as drinking water source in Dongguan, which locates at
the Pearl River Delta of China, have been analyzed in order to provide
theoretical bases for prevention and reduction of eutrophication. The analyzed
results show that nitrogen forms in the influent area of the reservoir are
given priority to ammonia nitrogen and nitrate nitrogen, whose proportion is
more than 45% respectively, and this is probably caused by the pollution of
inflow water quality; but in the effluent area, the forms are given priority to
nitrate nitrogen, whose proportion is as high as 96% and above; also the
proportion of ammonia nitrogen drops by more than 80% during the process from
the influent area to the effluent area, and this shows that the natural process
of nitrification and denitrification can be well accomplished in the reservoir.
We recommend here that to reduce the input amount of ammonia nitrogen and
organic nitrogen into the reservoir is the most efficient way to prevent or
mitigate eutrophication of water body.