Computational fluid dynamic (CFD) modeling was used to optimize the design of four new ozone contactors being added to an existing water treatment plant. The CFD analysis identified design improvements that increased contactor performance while meeting constraints. Specifically, it minimized dead zones and improved flow transitions, resulting in more uniform flow distribution and reduced head loss. The modified design achieved excellent flow characteristics and contact times within design criteria. The optimized contactor design is expected to provide more effective ozone use and minimize residual levels.
The CANSORB RX series of activated carbon
adsorbers are fabricated from carbon steel
and have a bonded nominal 200 mil lining of
seamless polyethylene which can withstand the rigors of
environmental remediation applications.
Activated carbon media discharge and drain lines can be
provided with ball valves. The liquid collection system
is designed to promote even flow distribution and thus
efficient utilization of the activated carbon.
The liquid outlet is designed to maintain a liquid level
above the activated carbon bed. Manways are 18” in
diameter for easy access and for removal and replacement
of activated carbon and other media. The activated carbon
The CANSORB RX series of activated carbon
adsorbers are fabricated from carbon steel
and have a bonded nominal 200 mil lining of
seamless polyethylene which can withstand the rigors of
environmental remediation applications.
Activated carbon media discharge and drain lines can be
provided with ball valves. The liquid collection system
is designed to promote even flow distribution and thus
efficient utilization of the activated carbon.
The liquid outlet is designed to maintain a liquid level
above the activated carbon bed. Manways are 18” in
diameter for easy access and for removal and replacement
of activated carbon and other media. The activated carbon
DSD-INT 2018 Groundwater modelling in Colombia - Galvis FanecaDeltares
Presentation by Marta Faneca Sanchez and Sandra Galvis Rodriquez (Deltares) at the iMOD International User Day 2018, during Delft Software Days - Edition 2018. Tuesday 13 November 2018, Delft.
Groundwater Circulation Well (IEG-GCW®) employing C-Mix in Lower Saxony, Germany
Addition of a nutritive preparation of C-Mix via GCW for anaerobic biodegradation of Chlorinated Hydrocarbons (CHC)
Environmental Management Modeling Activities at Los Alamos National Laborator...Velimir (monty) Vesselinov
esselinov, V.V., et al., Environmental Management Modeling Activities at Los Alamos National Laboratory (LANL), Department of Energy Technical Exchange Meeting, Performance Assessment Community of Practice, Hanford, April 13-14, 2010.
Talks provided at the Scottish Fisheries Co-ordination Centre/Institute of Fisheries Management MAPPING FISHERIES workshop in Edinburgh on March 1st-2nd 2016
DSD-INT 2018 Groundwater modelling in Colombia - Galvis FanecaDeltares
Presentation by Marta Faneca Sanchez and Sandra Galvis Rodriquez (Deltares) at the iMOD International User Day 2018, during Delft Software Days - Edition 2018. Tuesday 13 November 2018, Delft.
Groundwater Circulation Well (IEG-GCW®) employing C-Mix in Lower Saxony, Germany
Addition of a nutritive preparation of C-Mix via GCW for anaerobic biodegradation of Chlorinated Hydrocarbons (CHC)
Environmental Management Modeling Activities at Los Alamos National Laborator...Velimir (monty) Vesselinov
esselinov, V.V., et al., Environmental Management Modeling Activities at Los Alamos National Laboratory (LANL), Department of Energy Technical Exchange Meeting, Performance Assessment Community of Practice, Hanford, April 13-14, 2010.
Talks provided at the Scottish Fisheries Co-ordination Centre/Institute of Fisheries Management MAPPING FISHERIES workshop in Edinburgh on March 1st-2nd 2016
The Design of Hydraulic Distribution Module of Subsea Distribut ion UnitIJRES Journal
The paper analyses the structure of hydraulic distribution module. For piping structure design and cal
culation of the hydraulic distribution module, it analyzes the uniformity of fluid distribution in the pipeline, cons
idering the condition that the multi-port well are working simultaneously. The finite models of 5 kinds of schem
es are established that are set according two factors of the diameter of main pipe and distance between branch pi
pes, on the premise of other factors unchanged. And they are simulated combining with engineering cases by the
FLUNET software. The results show that the scheme gets a good distribution uniformity in which the diameter
of main pipe is 1/2 in, and the distance between branch pipes is 20in. It also determines the design steps of the pi
pe structure of hydraulic distribution module.
A new soil tunnelling machine with waterjet technologyPatricia Faria
Atualmente, a hidrodemolição com jato d’água é uma tecnologia bem estabelecida na construção civil, especialmente para remoção de concreto. No entanto, o uso desta tecnologia em construções subterrâneas é ainda pouco explorado. Comparado com ferramentas de escavação convencionais (baseadas em atrito, fratura e desgaste), a hidrodemolição tem características vantajosas de maior relação potência-peso etaxas de avanço e causandomenor desgaste das partes mecânicas. Todas essas vantagens podem ter impactos significativos na concepção de uma nova geração de máquinas de perfuração de túneis, com menor custo e maior eficiência. Outra possibilidade é o do desenvolvimento de um projeto incremental de baixo custo, como um método parcialmente mecanizado com um escudo protetor e remoção do solo por meios manuais. O presente artigo descreve um método semi-mecanizadoinovador de escavação de túneis em solo que utiliza a tecnologia de jato d'água de alta pressão. Basicamente, o equipamento proposto compreende um escudo cilíndrico, com um sistema móvel de bicos de jato d’água e elementos de drenagem
Traditional site investigation data collection methodologies have historically provided inadequate data density, data quality and data interpolation to overcome site heterogeneity. This deficiency in data often leads to repeated and/or incomplete investigations during initial stages of a site’s lifecycle and can result in the development of incomplete or an incorrect Conceptual Site Model (CSM). Incomplete CSMs often lead to flawed environmental system interpolations of geologic/hydrogeologic and microbiological-biochemistry systems, leading to unsuccessful remedial strategies, yielding to a greater potential to extend lifecycles and costs.
The incorporation of High Resolution Site Characterization technology-based solutions, geophysical data in bedrock as well as MiHPT data in overburden and incorporation of historical groundwater analytical data into a comprehensive 3D CSM provided a tool for enhanced process-based better informed decisions that led to the design of more targeted investigations, focused pilot studies, pneumatic injection delivery and more precise full-scale remediation implementations, proving a “Best-In-Class” solution that reduced project lifecycle and costs upwards of $3.1MM.
Simplifying stormwater design is costing us money - a short case studyAdam Berry
A short case study on some possible economic advantages of using numerical modelling versus simplified methods for local government authorities in areas such as large cross drainage structures. In light of very recent announcements on the AR&R releases, this also gives further merit in reducing the use of techniques such as the Rational Method
Numerical analysis for two phase flow distribution headers in heat exchangerseSAT Journals
Abstract A flow header having number of multiple small branch pipes are commonly used in heat exchangers and boilers. In beginning the headers were designed based on the assumption that the fluid distribute equally to all lateral pipes. In practical situation the flow is not uniform and equal in all lateral pipes. Mal distribution of flow in heat exchangers significantly affects their performance. Non-uniform flow distribution from header to the branch pipes in a flow system will lead to 25% decrease in effectiveness of a cross flow heat exchanger. Mal distribution of flow in the header is influenced by the geometric parameters and operating conditions of the header. In this work the flow distribution among the branch pipes of dividing flow header system is analyzed for two phase flow condition. In the two phase flow condition, the effect of change in geometric cross sectional shape of the header (circular, square), inlet flow velocities are varied to find the flow mal distribution through the lateral pipes are investigated with the use of Computational Fluid Dynamics software. Keywords: circular, square headers and Computational Fluid Dynamics software. (CFD)
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