Cincinnati's Richard Miller Treatment Plant: Setting the Foundations for the Future

2015 ◽  
Vol 107 (12) ◽  
pp. 46-53
Author(s):  
Jeff Swertfeger ◽  
Lawrence Moster ◽  
Leland L. Hite ◽  
Bruce L. Whitteberry
Keyword(s):  
Treatment Plant ◽  
The Future ◽  
Richard Miller

scholarly journals Impact of Climate Forecasts on the Microbial Quality of a Drinking Water Source in Norway Using Hydrodynamic Modeling

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 527 ◽  
Author(s):  
Hadi Mohammed ◽  
Andreas Longva ◽  
Razak Seidu
Keyword(s):  
Drinking Water ◽  
Treatment Plant ◽  
Fold Increase ◽  
Water Source ◽  
Water Quality Modeling ◽  
Climate Projections ◽  
Drinking Water Source ◽  
Local Climate ◽  
E Coli ◽  
The Future

This study applies hydrodynamic and water quality modeling to evaluate the potential effects of local climate projections on the mixing conditions in Lake Brusdalsvatnet in Norway and the implications on the occurrence of Escherichia coli (E. coli) at the raw water intake point of the Ålesund water treatment plant in the future. The study is mainly based on observed and projected temperature, the number of E. coli in the tributaries of the lake and projected flow. The results indicate a gradual rise in the temperature of water at the intake point from the base year 2017 to year 2075. In the future, vertical circulations in spring may occur earlier while autumn circulation may start later than currently observed in the lake. The number of E. coli at the intake point of the lake is expected to marginally increase in future. By the year 2075, the models predict an approximately three-fold increase in average E. coli numbers for the spring and autumn seasons compared to current levels. The results are expected to provide the water supply system managers of Ålesund with the information necessary for long-term planning and decisions in the protection of the drinking water source. The method used here can also be applied to similar drinking water sources in Norway for developing effective risk management strategies within their catchments.

scholarly journals A situated practice

2018 ◽  
pp. 149-166
Author(s):  
Fiona Hillary
Keyword(s):  
Public Space ◽  
Urban Sprawl ◽  
Treatment Plant ◽  
Site Specific ◽  
The Public ◽  
Industrial City ◽  
The Future ◽  
Situated Practice ◽  
Post Industrial ◽  
The City

A situated practice explores one artist’s approach to navigating the shifts and changes inherent in the public space of the post-industrial city and suburbs of Melbourne, Australia. Collaborative, ephemeral, site-specific, relational works in three specific sites; Station Pier in Port Melbourne, automated pedestrian crossings throughout the city, and at the Western Treatment Plant, the sewerage facility on the western edge of Melbourne’s urban sprawl, explore everyday public sites to stake a claim for the imagination. Engaging with the work of critical theorists including Rosi Braidotti, Franco Bifo Berardi and Donna Haraway I am interested in how the abstraction of ordinary experiences and spaces allow artists and audience to co-constitute the possibility of something other, triggering fleeting transformative acts of imagination. Through this body of work, I am learning how to leave the marks of care for the future and ‘stay with the trouble.’ (Haraway, 2016, p.10).

The Use of Stochastic Safety Analysis Methods to Establish Control Strategies and Estimate Future Risk

2002 ◽  
Author(s):  
Grant W. Ryan ◽  
Jonathan Young ◽  
Mike Grisgby
Keyword(s):  
Waste Treatment ◽  
Control Strategies ◽  
Full Range ◽  
Treatment Plant ◽  
Safety Analysis ◽  
Hanford Site ◽  
Analysis Methods ◽  
The Future ◽  
Future Risk ◽  
Waste Transfer

Stochastic safety analysis methods have been used at the Hanford Site in Washington State to establish control strategies and to estimate the future risk of waste transfer leak accidents. The Hanford Site tank farms currently store approximately 208 ML (55 Mgal) of radioactive/hazardous waste in 177 underground storage tanks. To move this waste a complex network of transfer piping and equipment is used. Each waste transfer carries a potential risk that a waste leak may occur. Waste transfer leaks into waste transfer structures, the soil (above ground and below ground), and into actively ventilated facilities due to a variety of causes were analyzed. A number of parameters (e.g., leak size, radiological composition of the leaked waste, wind speed and atmospheric dispersion) were treated as probability density functions (pdfs) in the safety analysis to determine the full range of potential consequences of waste transfer leaks. Each pdf was sampled in a Monte Carlo simulation model to determine the distribution of potential consequences from the various leak events. The resulting consequence distributions were evaluated with respect to risk guidelines to determine the appropriate control sets for daily operations to ensure that the risk from waste leak events could be minimized. The results were also used in the development of a probabilistic risk assessment to estimate accident risks to the public and co-located workers for both the tank farms and the future Hanford Site Waste Treatment Plant.

Introduction of Deep Oxic/Anoxic Tanks at Hendriksdal Sewage Treatment Plant to Increase the Capacity

1991 ◽  
Vol 23 (10-12) ◽  
pp. 1783-1792 ◽  
Author(s):  
J. Hultgren ◽  
I. Möllersten ◽  
L.-G. Reinius
Keyword(s):  
Total Nitrogen ◽  
Total Phosphorus ◽  
Nitrogen Removal ◽  
Pilot Plant ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
The Future ◽  
Pilot Plant Scale

The requirements for purification of sewage will be more stringent in Sweden in the future. For Henriksdal sewage treatment plant situated in rock, the proposed limit concentrations for BOD7, total phosphorus and total nitrogen are 10, 0.3 and 14 mg/l respectively as an average over the year. For nitrogen removal in the plant, the volumes of the biological stage have to be increased from about 70 000 m3 today to about 200 000 m3 in the future. There is space available in the rock for only a few new aeration and sedimentation tanks. To achieve adequate volumes, the aeration tanks must be deepened from 5 to 12 m. This paper provides a brief information about the ideas for extension, the investigations on pilot plant scale with operation of deep aeration tanks and the design of the future plant.

scholarly journals Investing in water supply resilience considering uncertainty and management flexibility

2021 ◽  
pp. 1-12
Author(s):  
Bryan T Adey ◽  
Claudio Martani ◽  
Jürgen Hackl
Keyword(s):  
Water Supply ◽  
Treatment Plant ◽  
Investment Decisions ◽  
Water Treatment Plant ◽  
Optimal Investment ◽  
Investment Strategies ◽  
Deep Uncertainty ◽  
Trade Offs ◽  
The Future ◽  
Management Flexibility

This paper demonstrates how to make investment decisions that optimally improve water supply resilience, taking into consideration both future uncertainty and management flexibility. The demonstration is done by evaluating investment strategies for a 38 Ml/d water treatment plant serving an urban area with approximately 75 000 inhabitants, where there is uncertainty with respect to future population growth, industrial production, external demand and the amount of rainfall due to climate change. It is shown that the quantification and comparison of the possible reductions in service and intervention costs over comparably long periods enables the optimal investment decisions – that is, the ones with the optimal trade-offs between stakeholders. Additionally, it can be seen that the used methodology enables the consistent and transparent consideration of (a) the concerns of multiple stakeholders, (b) the future deep uncertainty associated with key concerns and (c) the flexibility of infrastructure managers to make decisions in the future using new information. The methodology also ensures that managers have clear plans of action and considerable insight into the extent of required future financing.

Flow and pollutant measurements in a combined sewer system to operate a wastewater treatment plant and its storage tank during storm events

1995 ◽  
Vol 31 (7) ◽  
pp. 1-12 ◽  
Author(s):  
J.-L. Bertrand-Krajewski ◽  
M. Lefebvre ◽  
B. Lefai ◽  
J.-M. Audic
Keyword(s):  
Storage Tank ◽  
Treatment Plant ◽  
Integrated Approach ◽  
Stormwater Treatment ◽  
Storm Events ◽  
Sewer System ◽  
Combined Sewer ◽  
The Future ◽  
Combined Sewer System ◽  
Storm Drainage

Urban storm drainage is considered using an integrated approach taking into account all parts of the sewer system: pipes, storage tanks, overflows, treatment plant and receiving waters. This paper presents an experimental research in Boran-sur-Oise (France) where continuous measurements are carried out in the combined sewer system (catchment area 61 ha), in the storage tank (245 m3) and in the treatment plant (3000 p.e.). One of the objectives is a comprehensive knowledge of effects of storm events on treatment plant process and efficiency. Catchment, sewer system, storage tank, treatment plant and measurements are described. Results for an autumn rainfall are given as an example. Many impacts on the treatment plant are observed. Despite the load increase compared with dry weather periods, especially for TSS and ammonia, the plant efficiency remains satisfactory. Short-term and long-term impacts are distinguished. New rules for storage tank operation are proposed to avoid hydraulic plant overloading and to use the stormwater solids-settling properties. These rules will be tested in the future to verify their compatibility with receiving water quality requirements. Measurements in upstream sewer system could also be used in the future to operate stormwater treatment systems during storm events.

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