scholarly journals Processes and the Resulting Water Quality in the Medium-Size Turawa Storage Reservoir after 60-Year Usage

Water Quality ◽  
10.5772/66226 ◽  
2017 ◽  
Author(s):  
Marek Ruman ◽  
Zaneta Polkowska ◽  
Bogdan Zygmunt
Keyword(s):  
Water Quality ◽  
Medium Size ◽  
Storage Reservoir

Protection of surface water against contamination by wetland systems in Poland

2001 ◽  
Vol 44 (11-12) ◽  
pp. 325-330 ◽  
Author(s):  
H. Obarska-Pempkowiak ◽  
T. Ozimek ◽  
W. Chmiel
Keyword(s):  
Water Quality ◽  
Water Flow ◽  
Stream Water ◽  
Substantial Improvement ◽  
Point Sources ◽  
Storm Water ◽  
Medium Size ◽  
The Baltic Sea ◽  
The Baltic ◽  
The City

Facilities constructed in order to protect streamS against storm water in the Gdan«sk region are described. The first of them is located on the Rynarzewski Stream (water flow 25 l/s). The stream is the main tributary of the Jelitkowski Stream which in turn drains to the Baltic Sea in the area of popular beaches and hotels. Results of analyses indicate the improvement of water quality in the stream and along beaches in this region. Another facility is situated on the Swelina Stream (water flow 30 l/s). The stream is fed with storm water originating from residential districts. In order to improve water quality a pond was constructed supported by a subsurface flow filter (HF-CW type). After implementation of the system substantial improvement of water quality occurred. In order to protect drinking water intake for the city of Gdan«sk against surface and point sources of contaminants a hydrophite treatment system was constructed in Bielkowo. The system consists of two subunits: wet unit (pond), filled with water all the time and dry unit (extention of the pond), designed for storm water. In the wet unit dams constructed of medium size sand are placed. The system, especially the dams, is inhibited with reed. The drainage systems collect water percolating through the dams, and directs it downstream. The system was constructed in 1997. Since then it has proven a substantial improvement of water quality discharged of inflowing loads, on average.

Influence of extreme drawdown on water quality downstream of a large water storage reservoir

2009 ◽  
pp. n/a-n/a ◽  
Author(s):  
D. S. Baldwin ◽  
J. Wilson ◽  
H. Gigney ◽  
A. Boulding
Keyword(s):  
Water Quality ◽  
Water Storage ◽  
Storage Reservoir ◽  
Large Water

Drivers of water quality in a large water storage reservoir during a period of extreme drawdown

2008 ◽  
Vol 42 (19) ◽  
pp. 4711-4724 ◽  
Author(s):  
Darren S. Baldwin ◽  
Helen Gigney ◽  
Jessica S. Wilson ◽  
Garth Watson ◽  
Amy N. Boulding
Keyword(s):  
Water Quality ◽  
Water Storage ◽  
Storage Reservoir ◽  
Large Water

scholarly journals Water Quality of Medium Size Watercourse Under Baseflow Conditions: The Case Study of River Sutla in Croatia

AMBIO ◽  
2011 ◽  
Vol 40 (4) ◽  
pp. 391-407 ◽  
Author(s):  
Zrinka Dragun ◽  
Damir Kapetanović ◽  
Biserka Raspor ◽  
Emin Teskeredžić
Keyword(s):  
Water Quality ◽  
Medium Size

Investigating manganese dynamics in a coupled catchment-reservoir system: Lake Blagdon – SW England

2020 ◽  
Author(s):  
Jack Waterhouse ◽  
Thomas Kjeldsen ◽  
Lee Bryant
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Security ◽  
Medium Size ◽  
Catchment Management ◽  
Biogeochemical Processes ◽  
Reservoir Model ◽  
Concentration Data ◽  
Overlying Water ◽  
Field Campaign

<p>Drinking water security in the UK is facing increasing pressure from rising demand, fuelled by population growth and rising periods of drought. Monitoring and regulation of water quality and related internal biogeochemical processes within drinking-water reservoirs is therefore paramount to maintaining security of supply, as well as allowing continued efficient and cost-effective management. In aquatic systems, internal biogeochemical processes are controlled by a complex set of oxygen-controlled forcing mechanisms; as diffuse pollution inputs from upstream catchments enter oxygen-dynamic reservoirs that frequently include nutrient- and metal-rich sediment, deleterious soluble chemical species (e.g., trace metals such as manganese, Mn) can be released from the sediment to the overlying water. Mn in particular is a problem for drinking water treatment plants. In light of oxygen-related water quality issues, almost all UK drinking water utilities use aeration systems to optimise oxygen concentrations and corresponding water quality and ecosystem health. </p><p>Blagdon Lake in Somerset, SW England is one such medium-size (1.8km2), shallow depth (max: 13.1m) drinking-water reservoir underlain by Mn-rich sediments. The goal of this project was to investigate the dynamics of Mn release into the overlying water, by coupling a catchment model (SWAT) and a reservoir model (CE-QUAL-W2) together. The coupled whole-system model would be assessed using multiple atmospheric, land-use, and catchment management scenarios to discern the driving processes of Mn release and quantify risk to future water security.</p><p>An extensive five-month field campaign was undertaken in Summer 2019 to build water quality time series and calibration datasets for the reservoir model (CE-QUAL-W2). Techniques and equipment deployed during the field work included: water sample filtration & soluble/insoluble Mn analysis at 2m depth intervals; permanently installed thermistor chains using Onset TidbiT v2 loggers at 1m depth resolution; water quality profiles from an EXO3 Sonde, logging pH, chlorophyll-α, conductivity, and turbidity; and surface sediment core Mn analysis. This data was then collated with atmospheric data (ERA5), and existing datasets of nutrient concentration data at multiple inflows (inc. NO2/NO3, Ammonium, Total P/Ortho P). Initial analysis of the data collected during the field campaign suggest that periods of stratification align with elevated Mn concentrations in the water column, directly relating soluble Mn release to air temperature.</p>

ANALYTICAL EQUATIONS OF STORAGE RESERVOIR WATER QUALITY

1998 ◽  
Vol 15 (3) ◽  
pp. 171-186
Author(s):  
P. F. BOULOS ◽  
R. E. MAU ◽  
R. M. CLARK
Keyword(s):  
Water Quality ◽  
Reservoir Water ◽  
Storage Reservoir

Assessment of metal exposure, ecological status and required water quality monitoring strategies in small- to medium-size temperate rivers

2016 ◽  
Vol 51 (4) ◽  
pp. 309-317 ◽  
Author(s):  
Vlatka Filipović Marijić ◽  
Mirela Sertić Perić ◽  
Renata Matoničkin Kepčija ◽  
Zrinka Dragun ◽  
Ivana Kovarik ◽  
...  
Keyword(s):  
Water Quality ◽  
Ecological Status ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Metal Exposure ◽  
Medium Size ◽  
Monitoring Strategies

scholarly journals On the Issue of Small and Medium-size Reservoirs Liquidation

2010 ◽  
Author(s):  
Keyword(s):  
Water Quality ◽  
Bottom Sediments ◽  
Medium Size ◽  
Waste Waters ◽  
Urban Waste ◽  
Industrial Center

The paper presents results of observations on the changes of discharged water quality in the process of evacuation of the Iset River pond silted with bottom sediments formed under the influence of the major industrial center urban waste waters.

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