Development of a portable direct filtration water treatment plant in northern Manitoba

1990 ◽  
Vol 17 (5) ◽  
pp. 724-729
Author(s):  
John W. Markowsky ◽  
David L. Woytowich ◽  
Ian C. Goulter
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
High Rate ◽  
Construction Sites ◽  
Direct Filtration ◽  
Construction Design ◽  
Filtration System ◽  
Treatment Facilities ◽  
Construction Operation

The Limestone Generating Project was reactivated in 1985. Part of the development of the project was to review and implement, if feasible, potable water treatment facilities for the construction community of Sundance. The source water, from the Nelson River, is of reasonably good quality. The turbidity, however, ranges from 4 to 70 nephelometric turbidity units (NTU), averaging 15.2 NTU. Following preliminary and pilot plant studies, a high rate, deep bed direct filtration system was proposed and constructed to reduce turbidity to acceptable levels. A key feature of the plant is its portability. Owing to the innovative design, the three filters can be easily transferred for use at future construction sites on the Nelson River. This paper reviews and discusses the design, construction, operation, and costs of the plant. Key words: construction, design, direct filtration, high rate, Nelson River, operation, portability, turbidity.

Cost-effective water treatment of polluted surface water by using direct filtration and granular activated carbon filtration

2002 ◽  
Vol 2 (1) ◽  
pp. 233-240 ◽  
Author(s):  
J. Cromphout ◽  
W. Rougge
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Treatment Process ◽  
Treatment Plant ◽  
Granular Activated Carbon ◽  
Cost Effective ◽  
Water Treatment Plant ◽  
Direct Filtration ◽  
Carbon Filtration ◽  
Effective Water

In Harelbeke a Water Treatment Plant with a capacity of 15,000 m3/day, using Schelde river water has been in operation since April 1995. The treatment process comprises nitrification, dephosphatation by direct filtration, storage into a reservoir, direct filtration, granular activated carbon filtration and disinfection. The design of the three-layer direct filters was based on pilot experiments. The performance of the plant during the five years of operation is discussed. It was found that the removal of atrazin by activated carbon depends on the water temperature.

Rehabilitation of water treatment plants with operational constrains: a study on turbidity removal

2013 ◽  
Vol 3 (4) ◽  
pp. 549-556 ◽  
Author(s):  
Kaveh Sookhak Lari ◽  
Morteza Kargar
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Term Effect ◽  
High Rate ◽  
Water Turbidity ◽  
Turbidity Removal ◽  
Water Treatment Plants ◽  
Long Term Effect

High-rate lamella settlers in clarifiers and triple media filters have been implemented in Isfahan water treatment plant (known as ‘Baba-Sheikh-Ali’) in Iran to upgrade existing clarification/filtration processes during the recent years. The applied technologies are mainly used to reduce finished water turbidity as the primary regional criterion on water quality. However, application of both technologies faced some operational limitations since they began to work. These problems are due to the existing layout of the process units and available materials. The current study focuses on performance of restricted application of the two technologies with respect to turbidity removal. Online measured turbidity data from a two-year field observation (since March 2010) are used. In particular, results show a more promising and long-term effect on turbidity removal due to tripling filter media rather than application of the lamella settlers in clarifiers. The reasons for these observations are discussed.

scholarly journals Treatment of Severely-Deteriorated Post-Fire Runoff: A Comparison of Conventional and High-Rate Clarification to Demonstrate Key Drinking Water Treatment Capabilities and Challenges

2020 ◽  
Author(s):  
Jesse Skwaruk ◽  
Monica Emelko ◽  
Uldis Silins ◽  
Micheal Stone
Keyword(s):  
Water Treatment ◽  
River Water ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
High Rate ◽  
Case Scenario ◽  
Worst Case ◽  
Jar Test ◽  
Doc Concentration

The ability to treat worst-case scenario, “black water” resulting from wildfire ash transport directly from hillslopes to source waters was investigated—this has not been reported previously. The treatment response capabilities of conventional chemical pre-treatment and high rate clarification processes were evaluated at bench scale; these included: sand-ballasted flocculation (SBF), SBF with enhanced coagulation, and SBF with powdered activated carbon (PAC).<div><br></div><div>Fresh ash was collected from the Thuya Lake Road (TLR) wildfire (+51.4098 latitude, -120.2435 longitude; burn area 556 ha), which was part of the Little Fort Fire Complex that burned in July 2017, near Little Fort, British Columbia, Canada. The ash was used to prepare a severely-deteriorated source water matrix. It was added to high quality river water (Elbow River, Calgary, Alberta) to reflect post-fire water quality conditions when ash is mobilized off the landscape to receiving waters during a major runoff event.</div><div><br></div><div><p>Prior to mixing, ash was sieved through a 1 mm screen to remove any large debris and conifer needles that typically would not be found in water treatment plant influent streams. Three concentrations of ash in river water were prepared (2.0, 10.0, and 20.0 g×L<sup>-1</sup> of ash; five replicates of each) by adding ash to 1000 mL of Elbow River water in 2-L plastic square beakers, and mixed using a jar test apparatus (Phipps & Bird, PB-900 Series Programmable 6-Paddle Jar Tester, Richmond, VA) at 120 RPM for 2 minutes. Turbidity and dissolved organic carbon (DOC) concentrations consistent with or slightly higher than the levels that have been reported following severe wildfire (i.e., >1000 NTU and >15mg×L<sup>-1</sup>, respectively) were targeted. These water matrices were black-colored, in a manner consistent with previous reports of severely-deteriorated water conditions after wildfire.<sup></sup></p><p> </p><p>Standard methods were used to evaluate turbidity (Method 2130B;<sup> </sup>Hach 2100 N turbidimeter, Loveland, CO), pH (4500-H<sup>+</sup>B Electrometric method; <sup> </sup>Orion 720A pH meter, Thermo Fisher Scientific, Waltham, MA), DOC concentration (filtration through pre-rinsed 0.45 µm Nylaflo membranes, Pall, Port Washington, NY; Method 5310C;<sup> </sup>Shimadzu TOC-V WP analyzer, Kyoto, Japan), and UVA<sub>254</sub> (Method 5910B;<sup> </sup>1 cm quartz cell; Hach DR 5000 Spectrophotometer, Loveland, CO). Specific ultraviolet absorbance at 254 nm (SUVA)<sub> </sub>was calculated by dividing UVA<sub>254</sub> absorbance by the DOC concentration.</p></div><div></div>

scholarly journals Vertical Upgrading of Existing Water Treatment Plants by using Air Flotation Technique

2019 ◽  
Vol 9 (2) ◽  
pp. 3671-3680
Keyword(s):  
Water Treatment ◽  
Low Cost ◽  
New Technology ◽  
Treatment Plant ◽  
Treatment Phase ◽  
Water Treatment Plant ◽  
High Rate ◽  
Lower Efficiency ◽  
Water Treatment Plants ◽  
Rate Of Increase

Due to the rate increase for potable water need, the general market trend is the vertical expansions for water treatment plants instead of the horizontal ones. By upgrading the existing plants using new technology to reach the maximum capacity and conserve the water quality parameters as the Egyptian Code states. The most benefits of plant upgrading are no new land is needed also, low cost solution, as we could upgrade the WTP as mentioned before without adding major civil works comparing with the construction of new water treatment. This study aims to upgrade the existing water treatment plants using dissolved air floatation system, in order to reach the maximum possible capacity using several possible scenarios without adding major civil works. The study shows that, the scenario which involves DAF technology then sedimentation and filtration has the best removal efficiency because it has three treatment phases. The use of one treatment phase from floatation or sedimentation followed by filtration achieved lower efficiency. At last direct filtration, considering low removal efficiencies due to the high rate of filtration which allowed the suspended solids to escape.For the application upon Al Ameriyah water treatment plant, the first proposal which involves five combined tanks, two tube settler and one filter tank is the most convenient proposal to be achieved. Since it has quiet high value 72 points in the technical evaluation with the least estimated cost 85,769,200 LE. The use of DAF technology combined with sedimentation gives the chance to increase the existing plant capacity from 520000 m3 /day to 864815 m3 /day with rate of increase equals 66.31% which is a cheap and happy solution.

Drinking water treatment plant assessment through performance indicators

2008 ◽  
Vol 8 (3) ◽  
pp. 245-253 ◽  
Author(s):  
P. Vieira ◽  
H. Alegre ◽  
M. J. Rosa ◽  
H. Lucas
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Performance Assessment ◽  
Performance Indicators ◽  
Raw Materials ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
Treatment Facilities ◽  
Definition Of

Performance assessment (PA) of urban infrastructure services, mainly in the case of water systems, is becoming a major issue worldwide. Therefore, in the last decade, the need for a clear definition of management objectives of water services and the subsequent need to monitor goals achievement have led to the development of some initiatives to tackle the evaluation of the efficiency of those services, their main aim being the definition of systems of performance indicators. However, these PA systems are strongly oriented by a management/economic perspective and technical aspects have often been ignored. In addition, none of them has specifically addressed the drinking water treatment. This paper presents a proposal for a PI system that applies to drinking water treatment facilities as a part of a standardised methodology for performance assessment. In total, ca. 80 PI have been defined and classified according to seven evaluation domains, namely: treated water quality; plant reliability; use of natural resources and raw materials; by-products management; safety; human resources; and, economical and financial resources.

scholarly journals Treatment of Severely-Deteriorated Post-Fire Runoff: A Comparison of Conventional and High-Rate Clarification to Demonstrate Key Drinking Water Treatment Capabilities and Challenges

2020 ◽  
Author(s):  
Jesse Skwaruk ◽  
Monica Emelko ◽  
Uldis Silins ◽  
Micheal Stone
Keyword(s):  
Water Treatment ◽  
River Water ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
High Rate ◽  
Case Scenario ◽  
Worst Case ◽  
Jar Test ◽  
Doc Concentration

The ability to treat worst-case scenario, “black water” resulting from wildfire ash transport directly from hillslopes to source waters was investigated—this has not been reported previously. The treatment response capabilities of conventional chemical pre-treatment and high rate clarification processes were evaluated at bench scale; these included: sand-ballasted flocculation (SBF), SBF with enhanced coagulation, and SBF with powdered activated carbon (PAC).<div><br></div><div>Fresh ash was collected from the Thuya Lake Road (TLR) wildfire (+51.4098 latitude, -120.2435 longitude; burn area 556 ha), which was part of the Little Fort Fire Complex that burned in July 2017, near Little Fort, British Columbia, Canada. The ash was used to prepare a severely-deteriorated source water matrix. It was added to high quality river water (Elbow River, Calgary, Alberta) to reflect post-fire water quality conditions when ash is mobilized off the landscape to receiving waters during a major runoff event.</div><div><br></div><div><p>Prior to mixing, ash was sieved through a 1 mm screen to remove any large debris and conifer needles that typically would not be found in water treatment plant influent streams. Three concentrations of ash in river water were prepared (2.0, 10.0, and 20.0 g×L<sup>-1</sup> of ash; five replicates of each) by adding ash to 1000 mL of Elbow River water in 2-L plastic square beakers, and mixed using a jar test apparatus (Phipps & Bird, PB-900 Series Programmable 6-Paddle Jar Tester, Richmond, VA) at 120 RPM for 2 minutes. Turbidity and dissolved organic carbon (DOC) concentrations consistent with or slightly higher than the levels that have been reported following severe wildfire (i.e., >1000 NTU and >15mg×L<sup>-1</sup>, respectively) were targeted. These water matrices were black-colored, in a manner consistent with previous reports of severely-deteriorated water conditions after wildfire.<sup></sup></p><p> </p><p>Standard methods were used to evaluate turbidity (Method 2130B;<sup> </sup>Hach 2100 N turbidimeter, Loveland, CO), pH (4500-H<sup>+</sup>B Electrometric method; <sup> </sup>Orion 720A pH meter, Thermo Fisher Scientific, Waltham, MA), DOC concentration (filtration through pre-rinsed 0.45 µm Nylaflo membranes, Pall, Port Washington, NY; Method 5310C;<sup> </sup>Shimadzu TOC-V WP analyzer, Kyoto, Japan), and UVA<sub>254</sub> (Method 5910B;<sup> </sup>1 cm quartz cell; Hach DR 5000 Spectrophotometer, Loveland, CO). Specific ultraviolet absorbance at 254 nm (SUVA)<sub> </sub>was calculated by dividing UVA<sub>254</sub> absorbance by the DOC concentration.</p></div><div></div>

scholarly journals Water Treatment Plant Operating by Using SCADA

2021 ◽  
pp. 180-185
Author(s):  
Meghali Ghuge ◽  
Aishwarya Nikalje
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water System ◽  
Water Treatment Plant ◽  
Water Diversion ◽  
Automation System ◽  
Raw Water ◽  
Power Battery ◽  
Water Pipelines ◽  
Treatment Facilities

The Water Treatment Plant is responsible for the operation, repair , and maintenance of the City’ s water supply system. This includes all parts of the water system supply chain from: The raw water diversion and pumping facilities to the raw water pipelines • The treatment facilities • The finished water pumping facilities • The finished water storage facilities Testing of SCADA and Automation system for entire Headwork to WTP and Sump & ESR in this WTP premises with Flow meters, Solar power battery , Power & Signal cable, PRV etc completed as per specification.

Integration of water treatment, environmental and information technologies: Amagasaki project

2002 ◽  
Vol 2 (5-6) ◽  
pp. 185-191
Author(s):  
T. Hanamoto ◽  
D. Nagashio ◽  
T. Sasaki
Keyword(s):  
Information Technology ◽  
Drinking Water ◽  
Water Treatment ◽  
Water Supply ◽  
Information Technologies ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
High Rate ◽  
Treatment Technology ◽  
Treatment Train

The Hanshin Water Supply Authority (HWSA) supplies drinking water to approximately 2.4 million consumers in the Hanshin area, including the city of Kobe. The HWSA has completed a project integrating two aging plants into a new water treatment plant (Amagasaki WTP) with a capacity of 373,000 m3 per day. The Amagasaki WTP has three significant special merits: water treatment, environmental, and information technology. The water treatment system is based on a multiple-barrier concept that estimates the value of water treatment technology not by individual processes, but by the overall performance of the system. The treatment train consists of coagulation/sedimentation, ozonation/activated carbon fluidized-bed adsorption, and coagulation/high-rate filtration, most of which fully utilize upward-flow. The key environmental technology characteristic of the new WTP is its achievement of zero-emissions. This design reduces CO2 discharge from the plant, as well as making it possible to completely recycle the sludge as an alternate material of agricultural and horticultural soils. Improvement of customer relations is a feature of the information technology. The authority provides information on the safety of the finished drinking water, watershed management, and the maintenance of source water quality. A visitors' area and emergency water supply facility for use in disasters have also been set up at the WTP. The Amagasaki WTP started commercial operation in April 2001. The completion of this renovated plant will significantly raise the quality of service to the customers.

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