Organic Contaminants in Canadian Coal Wastewaters and Associated Sediments

1990 ◽  
Vol 25 (2) ◽  
pp. 187-200
Author(s):  
J.W. Atwater ◽  
S.E. Jasper ◽  
P.D. Parkinson ◽  
D.S. Mavinic
Keyword(s):  
Water Column ◽  
Organic Contaminants ◽  
Site Preparation ◽  
Priority Pollutants ◽  
Sediment Samples ◽  
Plant Samples ◽  
Wastewater Samples ◽  
Inorganic Constituents ◽  
Absorb Material ◽  
Preparation Plant

Abstract Wastewater and sediment samples were collected from 11 coal operations across Canada: 3 coal storage transfer terminals, 7 operating mines, 3 of which had on-site preparation plants, and 1 separate preparation plant. Samples were analyzed for specific organic and inorganic constituents. Only the results of the organic analyses are presented here. The wastewater samples were analyzed for 18 target compounds. Sediment samples were analyzed for these 18 target compounds plus a suite of organic priority pollutants. Twelve of the 18 target compounds were detected in wastewater, only 4 of which were found in excess of 10 μg/L in more than 10 percent of the samples. Sixteen compounds were found in the sediments at levels from less than 1 μg/g to a maximum of 27 μg/g. Limited experimentation indicated that coal sediments were unlikely to contribute organic contaminants to the water column but rather were more likely to absorb material out of the water column.

scholarly journals Emerging Organic Contaminants in Chinese Surface Water: Identification of Priority Pollutants

Engineering ◽  
2021 ◽  
Author(s):  
Mengmeng Zhong ◽  
Tielong Wang ◽  
Wenxing Zhao ◽  
Jun Huang ◽  
Bin Wang ◽  
...  
Keyword(s):  
Surface Water ◽  
Organic Contaminants ◽  
Priority Pollutants ◽  
Emerging Organic Contaminants

scholarly journals Comparison of a novel passive sampler to standard water-column sampling for organic contaminants associated with wastewater effluents entering a New Jersey stream

Chemosphere ◽  
2005 ◽  
Vol 61 (5) ◽  
pp. 610-622 ◽  
Author(s):  
D.A. Alvarez ◽  
P.E. Stackelberg ◽  
J.D. Petty ◽  
J.N. Huckins ◽  
E.T. Furlong ◽  
...  
Keyword(s):  
New Jersey ◽  
Water Column ◽  
Organic Contaminants ◽  
Passive Sampler ◽  
Wastewater Effluents

Distribution of pathogenic vibrios and Vibrio spp. in the water column and sediment samples from the southern Gulf of Mexico

2021 ◽  
Vol 173 ◽  
pp. 113116
Author(s):  
Johanna Bernáldez-Sarabia ◽  
Marcial L. Lizárraga-Partida ◽  
Edna L. Hernández-López ◽  
Jahaziel Gasperin-Bulbarela ◽  
Alexei F. Licea-Navarro ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Water Column ◽  
Sediment Samples ◽  
Southern Gulf Of Mexico ◽  
Pathogenic Vibrios ◽  
Vibrio Spp

Planktonic and Benthic Bacteriovorous Protozoa at Eleven Stations in Puget Sound and Adjacent Pacific Ocean

1969 ◽  
Vol 26 (2) ◽  
pp. 299-304 ◽  
Author(s):  
Bruce Lighthart
Keyword(s):  
Pacific Ocean ◽  
Water Column ◽  
Deep Sea ◽  
Heterotrophic Bacteria ◽  
Puget Sound ◽  
Ecological Role ◽  
Population Densities ◽  
Sediment Samples

Bacteriovorous Protozoa and heterotrophic bacteria quantitatively cultured from 31 samples collected at eight stations in Puget Sound and three in the adjacent Pacific Ocean (one station being 1520 m deep) ranges from undetectable to approximately 1000 Protozoa per ml and 5–80,000 bacteria/ml. Flagellates in the genera Bodo, Oikomonas, Monas, Rynchomonas, and Actinomonas were the most prevalent forms cultured. One ciliate and several sarcodinoids were also grown. The regression of predatory Protozoa on prey bacteria in sediment samples was calculated to be 580 bacteria for every bacteriovorous protozoan. Population densities of both bacteriovorous Protozoa and heterotrophic bacteria in the samples decreased from sediment to the water column, and from shore seaward. The ecological role of bacteriovorous Protozoa in the shallow and deep sea is discussed.

scholarly journals Chitinase Gene Sequences Retrieved from Diverse Aquatic Habitats Reveal Environment-Specific Distributions

2004 ◽  
Vol 70 (12) ◽  
pp. 6977-6983 ◽  
Author(s):  
Gary R. LeCleir ◽  
Alison Buchan ◽  
James T. Hollibaugh
Keyword(s):  
Water Column ◽  
Chitinase Gene ◽  
Mono Lake ◽  
Hypersaline Lake ◽  
Sargasso Sea ◽  
Gene Sequences ◽  
Central Arctic Ocean ◽  
Sediment Samples ◽  
Group I ◽  
Chitinase Genes

ABSTRACT Chitin is an abundant biopolymer whose degradation is mediated primarily by bacterial chitinases. We developed a degenerate PCR primer set to amplify a ∼900-bp fragment of family 18, group I chitinase genes and used it to retrieve these gene fragments from environmental samples. Clone libraries of presumptive chitinase genes were created for nine water and six sediment samples from 10 aquatic environments including freshwater and saline lakes, estuarine water and sediments, and the central Arctic Ocean. Putative chitinase sequences were also retrieved from the Sargasso Sea metagenome sequence database. We were unable to obtain PCR product with these primers from an alkaline, hypersaline lake (Mono Lake, California). In total, 108 partial chitinase gene sequences were analyzed, with a minimum of 5 and a maximum of 13 chitinase sequences obtained from each library. All chitinase sequences were novel compared to previously identified sequences. Intralibrary sequence diversity was low, while we found significant differences between libraries from different water column samples and between water column and sediment samples. However, identical sequences were retrieved from samples collected at widely distributed locations that did not necessarily represent similar environments, suggesting homogeneity of chitinoclastic communities between some environments.

scholarly journals Application of passive sampling for measuring dissolved concentrations of organic contaminants in the water column at three marine superfund sites

2015 ◽  
Vol 34 (8) ◽  
pp. 1720-1733 ◽  
Author(s):  
Robert M. Burgess ◽  
Rainer Lohmann ◽  
Joseph P. Schubauer-Berigan ◽  
Pamela Reitsma ◽  
Monique M. Perron ◽  
...  
Keyword(s):  
Water Column ◽  
Organic Contaminants ◽  
Passive Sampling ◽  
Superfund Sites

Detecting and quantifying organic contaminants in sediments with nuclear magnetic resonance

Geophysics ◽  
2016 ◽  
Vol 81 (6) ◽  
pp. EN87-EN97 ◽  
Author(s):  
Emily L. Fay ◽  
Rosemary J. Knight
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Crude Oil ◽  
Organic Contaminants ◽  
Relaxation Times ◽  
Proton Nuclear Magnetic Resonance ◽  
Bulk Fluid ◽  
Sediment Samples ◽  
Water Signal ◽  
Nuclear Magnetic

We have conducted proton nuclear magnetic resonance (NMR) measurements of relaxation times [Formula: see text] and [Formula: see text] as well as the diffusion coefficient [Formula: see text] to detect and quantify gasoline, diesel, crude oil, and trichloroethylene (TCE) in sediment samples containing water. The sediment samples were coarse sand, fine sand, and a sand-clay mixture. We found that water, gasoline, diesel, and crude oil all exhibited similar signal amplitudes per unit volume, whereas TCE exhibited one-tenth the signal. The ability to use [Formula: see text] measurements to distinguish the contaminant signal from the water signal depended on the bulk-fluid properties as well as the sediment texture and grain size. In the [Formula: see text] distributions for samples containing equal volumes of contaminant and water, the contaminant signal could be resolved for crude oil in sand and for gasoline and TCE in the sand-clay mixture. Adding the diffusion measurement, using either pulsed or static gradients, made it possible to distinguish diesel and crude oil in all of the samples due to the large differences between the [Formula: see text] of the contaminants and water. From the diffusion measurements, we were able to accurately quantify diesel and crude oil volumes ranging from 1% to 17% of the total sample volume. These methods could be applied in the field using NMR logging tools to quantify and monitor subsurface contamination.

The Fate of 3-Trifluoromethyl-4-Nitrophenol (TFM) in Quiescent Waters and Its Impact on Benthos

1984 ◽  
Vol 19 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Brian F. Scott ◽  
John H. Carey ◽  
Elmer Nagy ◽  
Ronald Dermott
Keyword(s):  
Water Column ◽  
Initial Distribution ◽  
Decomposition Products ◽  
Commercial Formulation ◽  
Sediment Samples ◽  
The Third ◽  
Trace Concentrations

Abstract The lampricide, 3-trifluoromethyl-4-nitrophenol (TFM), was added to three lined, sedimented ponds to determine the fate of this chemical and its effect on the benthos of quiescent waters. Two ponds were treated with the commercial formulation and the third was treated with purified TFM. Water column, sediment and benthos samples were taken regularly but not necessarily simultaneously. The initial distribution of TFM in the water column was monitored as was the rate of disappearance of TFM which was calculated to be 0.068 day-1. Appreciable concentrations of TFM were found in the sediment over the two weeks following treatment, with only trace concentrations detected 117 days after treatment. No known decomposition products of TFM were detected in the water or sediment samples. Only the oligochaete and mollusc populations decreased after treatment, but they had returned to levels in the control pond within a year after addition of the chemical.

Sign in / Sign up

Export Citation Format

Share Document