Bioavailability of wastewater-derived organic nitrogen to the alga Selenastrum Capricornutum

被引:107
作者
Pehlivanoglu, E [1 ]
Sedlak, DL [1 ]
机构
[1] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA
关键词
nutrients; Kjeldahl; anthropogenic; eutrophication; amino acid; watershed protection;
D O I
10.1016/j.watres.2004.04.027
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Recent attempts to control cultural eutrophication in nitrogen-limited systems have focused on the simultaneous control of all forms of nitrogen with the underlying assumption that inorganic and organic nitrogen are equally bioavailable. To assess the validity of this assumption, algal growth bioassays were conducted on denitrified wastewater effluent samples, in the presence and absence of bacteria isolated from an effluent-receiving surface water. Bioassay results indicated that wastewater-derived dissolved organic nitrogen (DON) is not bioavailable to the algae Selenastrum Capricornutum in the absence of bacteria. However, approximately half of the wastewater-derived organic nitrogen was available to the algae in the presence of bacteria during a 2-week incubation. These results suggest that while it is inappropriate to assume that wastewater-derived DON cannot cause cultural eutrophication, it will not cause as much eutrophication as inorganic nitrogen. Additional research is needed to develop methods of minimizing the discharge of bioavailable forms of wastewater-derived organic nitrogen by wastewater treatment plants. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3189 / 3196
页数:8
相关论文
共 44 条
[1]  
[Anonymous], 1995, STANDARD METHODS EXA, V19th
[2]   THE ROLE OF DISSOLVED ORGANIC NITROGEN IN PHYTOPLANKTON NUTRITION, CELL BIOLOGY AND ECOLOGY [J].
ANTIA, NJ ;
HARRISON, PJ ;
OLIVEIRA, L .
PHYCOLOGIA, 1991, 30 (01) :1-89
[3]   Sources and environmental fate of strongly complexed nicker in estuarine waters: The role of ethylenediaminetetraacetate [J].
Bedsworth, WW ;
Sedlak, DL .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1999, 33 (06) :926-931
[4]   Release of ammonium and urea from dissolved organic nitrogen in aquatic ecosystems [J].
Berman, T ;
Béchemin, C ;
Maestrini, SY .
AQUATIC MICROBIAL ECOLOGY, 1999, 16 (03) :295-302
[5]   Algal growth on organic compounds as nitrogen sources [J].
Berman, T ;
Chava, S .
JOURNAL OF PLANKTON RESEARCH, 1999, 21 (08) :1423-1437
[6]   Caffeine, an anthropogenic marker for wastewater contamination of surface waters [J].
Buerge, IJ ;
Poiger, T ;
Müller, MD ;
Buser, HR .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2003, 37 (04) :691-700
[7]   GAS-CHROMATOGRAPHIC-MASS-SPECTROMETRIC ANALYSIS OF DERIVATIZED AMINO-ACIDS IN MUNICIPAL WASTE-WATER PRODUCTS [J].
BURLESON, JL ;
PEYTON, GR ;
GLAZE, WH .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1980, 14 (11) :1354-1359
[8]   Photochemical release of biologically available nitrogen from aquatic dissolved organic matter [J].
Bushaw, KL ;
Zepp, RG ;
Tarr, MA ;
SchulzJander, D ;
Bourbonniere, RA ;
Hodson, RE ;
Miller, WL ;
Bronk, DA ;
Moran, MA .
NATURE, 1996, 381 (6581) :404-407
[9]   Cycling of biologically available nitrogen in riverine humic substances between marine bacteria, a heterotrophic nanoflagellate and a photosynthetic dinoflagellate [J].
Carlsson, P ;
Granéli, E ;
Segatto, AZ .
AQUATIC MICROBIAL ECOLOGY, 1999, 18 (01) :23-36
[10]   AVAILABILITY OF HUMIC BOUND NITROGEN FOR COASTAL PHYTOPLANKTON [J].
CARLSSON, P ;
GRANELI, E .
ESTUARINE COASTAL AND SHELF SCIENCE, 1993, 36 (05) :433-447