IntegTa: a procedure for integrative management of dammed raw water reservoirs for drinking water production and their lower reaches

2010 ◽  
Vol 10 (5) ◽  
pp. 783-792 ◽  
Author(s):  
I. Slavik ◽  
W. Uhl ◽  
J. Völker ◽  
H. Lohr ◽  
M. Funke ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Flood Control ◽  
Reservoir Management ◽  
Water Production ◽  
Raw Water ◽  
Water Reservoirs ◽  
Drinking Water Production ◽  
The Impact

Dammed water reservoirs for drinking water production with their catchment areas and rivers downstream represent dynamic systems that change constantly and are subject to many influences. An optimized management considering and weighing up the various demands on raw water reservoirs (long-term storage for drinking water supply, flood control, ecological state of the rivers downstream, energy production, nature conservation and recreational uses) against each other is therefore very difficult. Thus, an optimal reservoir management has to take into account scenarios of possibly occurring external influences and to permit predictions of prospective raw water qualities, respectively. Furthermore, the impact of short and long term changes in raw water quality on subordinate processes should be considered. This approach was followed in the work presented here, as there currently is no tool available to predict and evaluate the impacts of raw water reservoir management strategies integratively. The strategy supported by the newly developed decision support procedure takes into account all aspects from water quality, flood control and drinking water treatment to environmental quality downstream the reservoir. Furthermore, possible extreme events or changes of boundary conditions (e.g. climate change) can be considered.

scholarly journals Raw Water Quality and Pretreatment in Managed Aquifer Recharge for Drinking Water Production in Finland

Water ◽  
2017 ◽  
Vol 9 (2) ◽  
pp. 138 ◽  
Author(s):  
Petri Jokela ◽  
Tapani Eskola ◽  
Timo Heinonen ◽  
Unto Tanttu ◽  
Jukka Tyrväinen ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Managed Aquifer Recharge ◽  
Water Production ◽  
Raw Water ◽  
Aquifer Recharge ◽  
Drinking Water Production ◽  
Raw Water Quality

A decision support procedure for integrative management of dammed raw water reservoirs

2013 ◽  
Vol 13 (2) ◽  
pp. 349-357
Author(s):  
I. Slavik ◽  
W. Uhl ◽  
B. Skibinski ◽  
S. Rolinski ◽  
T. Petzoldt ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Decision Support ◽  
Reservoir Management ◽  
Process Models ◽  
Raw Water ◽  
Water Reservoirs ◽  
Catchment Areas ◽  
Raw Water Quality ◽  
Integrative Management

Dammed drinking water reservoirs with their catchment areas and the downstream rivers are dynamic systems that change permanently under the influence of many factors. Their multifunctional use for drinking water supply, flood control, energy production, nature conservation and recreation as well as ecological constraints for the rivers downstream requires an integrative management considering and balancing between different requirements. Thus, an optimal reservoir management has to take into account scenarios of external influences and must be based on predictions of prospective raw water qualities. Furthermore, the impacts of short- and long-term changes of the raw water quality on drinking water treatment have to be considered. The problem is very complex and cannot be solved intuitively but requires the application of hydrological, ecological and process models. This approach was followed in the work presented here, as a tool to predict and evaluate the impacts of different reservoir management strategies in an integrative way is currently not available. The developed decision support procedure (DSP) allows for the estimation of the effects of different hydrological and water quantity management scenarios on raw water quality, water processing costs and ecology in the downstream river. Extreme hydrological events or changing boundary conditions (e.g. climate change) are taken into account.

scholarly journals Seasonal Dynamics in the Number and Composition of Coliform Bacteria in Drinking Water Reservoirs

2021 ◽  
Author(s):  
Carolin Reitter ◽  
Heike Petzoldt ◽  
Andreas Korth ◽  
Felix Schwab ◽  
Claudia Stange ◽  
...  
Keyword(s):  
Climate Change ◽  
Drinking Water ◽  
Microbial Community ◽  
Water Temperature ◽  
Surface Waters ◽  
Coliform Bacteria ◽  
List Type ◽  
Water Production ◽  
Water Reservoirs ◽  
Drinking Water Production

AbstractWorldwide, surface waters like lakes and reservoirs are one of the major sources for drinking water production, especially in regions with water scarcity. In the last decades, they have undergone significant changes due to climate change. This includes not only an increase of the water temperature but also microbiological changes. In recent years, increased numbers of coliform bacteria have been observed in these surface waters. In our monitoring study we analyzed two drinking water reservoirs (Klingenberg and Kleine Kinzig Reservoir) over a two-year period in 2018 and 2019. We detected high numbers of coliform bacteria up to 2.4 x 104 bacteria per 100 ml during summer months, representing an increase of four orders of magnitude compared to winter. Diversity decreased to one or two species that dominated the entire water body, namely Enterobacter asburiae and Lelliottia spp., depending on the reservoir. Interestingly, the same, very closely related strains have been found in several reservoirs from different regions. Fecal indicator bacteria Escherichia coli and enterococci could only be detected in low concentrations. Furthermore, fecal marker genes were not detected in the reservoir, indicating that high concentrations of coliform bacteria were not due to fecal contamination. Microbial community revealed Frankiales and Burkholderiales as dominant orders. Enterobacterales, however, only had a frequency of 0.04% within the microbial community, which is not significantly affected by the extreme change in coliform bacteria number. Redundancy analysis revealed water temperature, oxygen as well as nutrients and metals (phosphate, manganese) as factors affecting the dominant species. We conclude that this sudden increase of coliform bacteria is an autochthonic process that can be considered as a mass proliferation or “coliform bloom” within the reservoir. It is correlated to higher water temperatures in summer and is therefore expected to occur more frequently in the near future, challenging drinking water production.HighlightsColiform bacteria proliferate in drinking water reservoirs to values above 104 per 100 mlThe genera Lelliottia and Enterobacter can form these “coliform blooms”Mass proliferation is an autochthonic process, not related to fecal contaminationsIt is related to water temperature and appears mainly in summerIt is expected to occur more often in future due to climate changeGraphical abstract

scholarly journals Risk analysis in drinking water accumulation

2010 ◽  
Vol 28 (No. 6) ◽  
pp. 557-563 ◽  
Author(s):  
J. Říhová Ambrožová ◽  
J. Říha ◽  
J. Hubáčková ◽  
I. Čiháková
Keyword(s):  
Drinking Water ◽  
Free Water ◽  
Distribution Networks ◽  
Negative Influence ◽  
Water Reservoirs ◽  
Haccp System ◽  
Drinking Water Production ◽  
Water Accumulation

Drinking water is safe water, from the perspective of long-term use is does not cause any disease, pathogenic and hygienically unsafe microorganisms do not spread in it and customers enjoy its consumption. Drinking water is regarded as a foodstuff, therefore the known HACCP system can be used in the control system which can be applied not only directly to the final product, but also to the whole system of drinking water production, distribution, and accumulation. Even if there is no problem concerning the water processing and the technological line is well adjusted, the quality of drinking water is subsequently deteriorated by its transportation and accumulation. The condition and character of the operated distribution network and reservoirs are significantly and substantially related to the maintenance of the biological stability and quality of drinking water. This is well confirmed by biological audits of the distribution networks and water reservoirs. A significant fact is the negative influence of the secondary contamination by air in the reservoir facilities and the occurrence of microorganisms (fungi, bacteria) in free water and in biofilms. The findings obtained in the framework of biological audits were so alarming that the outputs of biological audits contributed to the reconsideration of the efficiency of the standard for the construction and design of water reservoirs and pointed out the necessity of its review.

scholarly journals Combining physicochemical properties and microbiome data to evaluate the water quality of South African drinking water production plants

PLoS ONE ◽  
2020 ◽  
Vol 15 (8) ◽  
pp. e0237335
Author(s):  
Tawanda E. Maguvu ◽  
Cornelius C. Bezuidenhout ◽  
Rinaldo Kritzinger ◽  
Karabo Tsholo ◽  
Moitshepi Plaatjie ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Physicochemical Properties ◽  
South African ◽  
Water Production ◽  
Drinking Water Production ◽  
Microbiome Data

scholarly journals Origin, Fate and Control of Pharmaceuticals in the Urban Water Cycle: A Case Study

Water ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 1034 ◽  
Author(s):  
Roberta Hofman-Caris ◽  
Thomas ter Laak ◽  
Hans Huiting ◽  
Harry Tolkamp ◽  
Ad de Man ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Wastewater Treatment ◽  
Ecological Status ◽  
Transformation Products ◽  
Additional Treatment ◽  
Water Production ◽  
The European Union ◽  
Drinking Water Production

The aquatic environment and drinking water production are under increasing pressure from the presence of pharmaceuticals and their transformation products in surface waters. Demographic developments and climate change result in increasing environmental concentrations, deeming abatement measures necessary. Here, we report on an extensive case study around the river Meuse and its tributaries in the south of The Netherlands. For the first time, concentrations in the tributaries were measured and their apportionment to a drinking water intake downstream were calculated and measured. Large variations, depending on the river discharge were observed. At low discharge, total concentrations up to 40 μg/L were detected, with individual pharmaceuticals exceeding thresholds of toxicological concern and ecological water-quality standards. Several abatement options, like reorganization of wastewater treatment plants (WWTPs), and additional treatment of wastewater or drinking water were evaluated. Abatement at all WWTPs would result in a good chemical and ecological status in the rivers as required by the European Union (EU) Water Framework Directive. Considering long implementation periods and high investment costs, we recommend prioritizing additional treatment at the WWTPs with a high contribution to the environment. If drinking water quality is at risk, temporary treatment solutions in drinking water production can be considered. Pilot plant research proved that ultraviolet (UV) oxidation is a suitable solution for drinking water and wastewater treatment, the latter preferably in combination with effluent organic matter removal. In this way >95% of removal of pharmaceuticals and their transformation products can be achieved, both in drinking water and in wastewater. Application of UV/H2O2, preceded by humic acid removal by ion exchange, will cost about €0.23/m3 treated water.

scholarly journals Water footprint analysis as an indicator of sustainability in nonconventional drinking water treatment systems

DYNA ◽  
2020 ◽  
Vol 87 (213) ◽  
pp. 140-147
Author(s):  
Víctor Alfonso Cerón Hernández ◽  
Isabel Cristina Hurtado ◽  
Isabel Cristina Bolaños ◽  
Apolinar Figueroa Casas ◽  
Inés Restrepo Tarquino
Keyword(s):  
Drinking Water ◽  
Cultural Context ◽  
Water Footprint ◽  
Drinking Water Treatment ◽  
Climatic Conditions ◽  
Water Production ◽  
Drinking Water Production ◽  
Footprint Analysis ◽  
Cultural Component ◽  
The Impact

The impact of multiple-stage filtration (MSF) was determined in two study systems. Water footprint (WF) was estimated with all its components and their results allowed the identification of those responsible for the environmental impact associated with drinking water production. Climatic conditions of high and low precipitation and socio-cultural context were considered. Results showed technicalshortcomings, such as the presence of fissures that generate losses and the contribution of polluting substances in the effluent from filter washing. Socio-economic limitations increase the WF. Water management can be improved by studying the WF components and their relationships with the socio-cultural component.

Analysing water quality changes due to reservoir management and climate change for optimization of drinking water treatment

2009 ◽  
Vol 9 (1) ◽  
pp. 99-105 ◽  
Author(s):  
I. Slavik ◽  
W. Uhl
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Drinking Water ◽  
Drinking Water Treatment ◽  
Reservoir Management ◽  
Quality Changes ◽  
Short Term ◽  
Reservoir Water ◽  
Catchment Areas

Reservoir water for drinking water production may undergo major short-term and long-term quality changes. These are results of natural processes in the water body and of the water's quality entering and leaving the reservoir. Long term quality changes are due to management of catchment areas, but also to a considerable extent by external impacts like climate change. Short term quality changes are impacted by extreme events like rain storms after drought periods, which might also be a result of climate change. Furthermore, short- and mid-term quality changes are impacted by reservoir management, which also influences the ecological state of rivers downstream the reservoir. The purpose of our work is to develop a decision support tool for reservoir management which takes into account short-, mid- and long-term factors for water quality change. With the tool it is intended to simulate not only water quality, but also management impact on flood risk prevention and drinking water quality (treatment efficiency and costs) and to assist decision making for reservoir management.

Neural networks for long term prediction of fouling and backwash efficiency in ultrafiltration for drinking water production

Desalination ◽  
2000 ◽  
Vol 131 (1-3) ◽  
pp. 353-362 ◽  
Author(s):  
N. Delgrange-Vincent ◽  
C. Cabassud ◽  
M. Cabassud ◽  
L. Durand-Bourlier ◽  
J.M. Laîné
Keyword(s):  
Neural Networks ◽  
Drinking Water ◽  
Water Production ◽  
Term Prediction ◽  
Drinking Water Production ◽  
Long Term Prediction
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