Direct Potable Reuse Can (and Does!) Improve Water Quality: Full CECs Results from Water Quality Testing at the Raw Water Production Facility in Big Spring

2016 ◽  
Vol 2016 (8) ◽  
pp. 5375-5384
Author(s):  
Eva Steinle-Darling ◽  
Eric Dickenson
Keyword(s):  
Water Quality ◽  
Water Production ◽  
Production Facility ◽  
Raw Water ◽  
Potable Reuse ◽  
Quality Testing ◽  
Improve Water Quality ◽  
Direct Potable Reuse

Combiningex situandin situmethods to improve water quality testing for the conservation of aquatic species

2016 ◽  
Vol 27 (2) ◽  
pp. 559-568
Author(s):  
Carla J. Pollard ◽  
Michelle P. Stockwell ◽  
Deborah S. Bower ◽  
John Clulow ◽  
Michael J. Mahony
Keyword(s):  
Water Quality ◽  
Aquatic Species ◽  
Quality Testing ◽  
Improve Water Quality

Elimination of microcystis cyanobacteria (blue-green algae) by an ozoflotation process: a pilot plant study

1994 ◽  
Vol 30 (8) ◽  
pp. 245-257 ◽  
Author(s):  
F. Benoufella ◽  
A. Laplanche ◽  
V. Boisdon ◽  
M. M. Bourbigot
Keyword(s):  
Water Quality ◽  
Green Algae ◽  
Contact Time ◽  
Organic Content ◽  
Raw Water ◽  
Time Curve ◽  
Blue Green Algae ◽  
Utilisation Rate ◽  
Microcystis Strain ◽  
Improve Water Quality

It is now known that since cyanobacteria (blue-green algae) occur in both swimming and drinking water supplies, and lakes and rivers, they represent an increasing hazard to animal life and human population. Moreover, high algal contents pose also a number of operation problems for water purification plants. The objective of the work is to study the elimination of a Microcystis strain of cyanobacateria by the use of an ozoflotation process which associates the oxidizing properties of ozone and the physical aspects of flotation. The functioning and the efficiency of a pilot unit is presented according to such parameters as: ozone dose, flow rate, coagulants and raw water quality. The use of ozone in pretreatment leads to an inactivation of the algal cells. Experiments let us calculate the specific ozone utilisation rate of Microcystis and the [C.t] (ozone concentration, contact time) curve is determined versus algal removal. Under real conditions, a previous coagulation stage is necessary; best results are obtained with ferric chloride. Preozonation is also of influence on the enhancement of the coagulation efficiency. Association of the ozoflotation process and bilayer filtration can solve the algae problems of waters presenting low turbidity and low organic content, and improve water quality.

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

Water Quality for Potable Reuse

1991 ◽  
Vol 23 (10-12) ◽  
pp. 2171-2180 ◽  
Author(s):  
William C. Lauer
Keyword(s):  
Water Quality ◽  
Water Reuse ◽  
Potable Water ◽  
Treatment Plant ◽  
Treated Wastewater ◽  
Test Results ◽  
Potable Reuse ◽  
Extensive Analysis ◽  
Animal Feeding ◽  
Direct Potable Reuse

Denver's Potable Water Reuse Demonstration Project is designed to examine the feasibility of converting secondary treated wastewater to potable water quality. A 1.0 mgd (44L/s) treatment plant began operation in 1985 and during the first three years many processes were evaluated. Data from the evaluation period was used to select the optimum treatment sequence which is now being used to produce samples for the two-year animal feeding health effects study now underway. Operation in this configuration will continue until early 1991 during which time comprehensive analytical studies will further define the water quality in relation to existing standards and Denver's current potable supply. A decision concerning the full-scale implementation of direct potable reuse will follow extensive analysis of the test results and in-depth economic evaluation.

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.

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