SEARCH THIS SITE
 
banner_tech_library.jpg
Technical Papers Library

Browse the library of technical papers authored by Hydro International's water experts for information on stormwater, wastewater and combined sewer overflow research. 

For papers about best management practices for the water industry, browse Hydro's White Papers Library located in the Press Centre.

DocumentsDate added

Order by : Name | Date | Hits [ Ascendant ]
file icon Use of computational fluid dynamics to assess the disinfection performance of a sewer overflowhot! 08/22/2005
Authors
D.A. Egarr, M.G. Faram, I. Guymer, T. O’Doherty, N.Syred
Abstract
The fluid residence time characterisation of a 3.4m diameter Hydrodynamic Vortex Separator (HDVS) has been carried out over a range of flowrates. Computational Fluid Dynamic (CFD) modelling has also been undertaken for the same conditions and validated against the experimental results, for which reasonable correspondence has been found. Using the results from the CFD modelling and batch inactivation results from the disinfection of secondary treated wastewater, it is shown that the theoretical performance of a HDVS as a contact vessel for disinfection can be predicted.
file icon UrbanWaterManagement: Innovations and Paradigm Shifts to Address 21st Century Needshot! 05/16/2008
Authors
Robert Y.G. Andoh,Michael G. Faram and Kwabena Osei
Abstract
Globally, the water and wastewater industry faces major challenges, both in developed and developing world regions. The developed world has enjoyed the benefits of the foresight of prior generations, with major strides gained in public health simply from innovations such as the humble sewer which has contributed more to human health than all developments in the medical field. Challenges faced in different regions are diverse in nature, magnitude and scale. Some are local in nature but others such as the impacts of Climate Change are truly global. The paper examines the status and evolution of innovations within urban water management (with particular reference to stormwater management) including impacts of regulation, barriers to innovation, current trends and paradigms. It is argued that there is a need to change the way we approach urban water management challenges, particular if the goal is to achieve more sustainable development in an increasingly urbanizing world.
file icon Treatment of urban run-off using innovative below-ground separation and filtration technologieshot! 09/04/2007
Authors
M.G. Faram, R.Y.G.Andoh
Abstract
The current climate of interest in water-environmental issues and the drive towards ‘sustainable’ practice presents significant technical challenges. In the urban water management arena, while the emphasis in the UK and Europe in recent years has been on implementing ‘best practice’ solutions at the ‘new development’ level, a greater challenge will be in addressing the situation in existing urban infrastructure. The paper discusses the role of below-ground stormwater separation and filtration systems, covering their form, operation and verification. Through reference to a number of evaluation studies, it is demonstrated that these systems can be robust and effective, and can play a role in stormwater quality management, whether used in conjunction with other ‘hard engineered’ structures or with ‘soft’ structures such as ponds. They offer particular opportunities in highly urbanised catchments where space availability is a constraint, or where economic considerations preclude the use of less space-efficient options.
file icon Storm Water Best Management Practices into the Existing Urban Landscape hot! 05/16/2008

Authors: Ed Loffill, David Phipps, Rafid Alkhaddar, Robert Andoh and Mike Faram

Abstract: The operation of an ‘advanced’ hydrodynamic vortex separator (AVS) designed for stormwater sediment interception has been examined using particle capture and retention efficiency testing and dye tracer testing. For retention efficiency in particular (referring to the efficiency with which a chamber retains pollutants following capture) the results are compared with those for other configurations, including simple vortex and gravity separation devices. The results show how the collection and retention efficiencies of the AVS are enhanced through the presence of a quiescent zone in the base where solids are stored. A simple model of system operation is considered, based on the surface loading rate of the active region and the particle sedimentation velocity. It is concluded that a comprehensive model of system performance needs to take into account a variety of factors, including the detailed characteristics of the sediment material and the hydrodynamic characteristics of the specific separation device in question.

file icon Real Life Solutions to SUDShot! 04/20/2005
Authors
Alex Stephenson
Abstract
A novel integrated system providing ‘hard’ or engineered solutions to SUDS, Source Control and Rainwater re-use is described. The system is made up of several facets; a stormwater storage element (Stormcell
<< Start < Prev 1 2 3 4 5 6 7 8 9 10 Next > End >>
Results 6 - 10 of 46