water engineering Articles

  • FORUM: Balancing basics and applications in teaching environmental and water resources engineering

    This short forum suggest that engineering practitioners, asked about what they expect out of a fresh engineer immediately after their graduation in terms of on-job skills and technical training, prefer that an engineer be able to hit the road and run without too much on-job training. It suggests that engineering undergraduate curricula need to have a good balance in offering both basics and ...


    By Inderscience Publishers

  • The 1st Harmony on the Secret Garden

    It was the time for everyone to feel the harmony that was made by Professor Mooyoung Han, the one who brought harmony in water engineering concepts. Professor Han’s activities on water engineering concept are very well known in everywhere in this world. Especially during long time, he tried to bring safety, beauty and peace to the world by his outstanding ideas on rainwater concept. He did ...


    By IWA Publishing

  • Sanitation under challenge: contributions from the social sciences

    This paper reviews the contribution the social sciences can make to the challenge of providing access to sustainable sanitation services and infrastructures for billions of people, in both the over- and underdeveloped parts of the world. The paper reviews and discusses three particular social scientific topics relevant for the sanitation challenge: the nature of socio-technical change, the issue ...


    By IWA Publishing

  • Roles of the Water Court and the State Engineer for water administration in Colorado

    Colorado manages water using an administrative structure that is unique among the United States following the doctrine of prior appropriation: Water rights are adjudicated not by the State Engineer, but by Water Courts – separate from and operating in parallel to the criminal and civil courts – established specifically for this purpose. Fundamental to this system is the notion that water ...


    By IWA Publishing

  • Statistical characteristics of rainfall in the Onkaparinga catchment in South Australia

    The main objective of this study was to investigate the statistical characteristics of point rainfall and the novelty of the work was the development of a hybrid probability distribution that can model the full spectrum of daily rainfall in the Onkaparinga catchment in South Australia. Daily rainfall data from 1960 to 2010 at 13 rainfall stations were considered. Spatial dependency among the ...


    By IWA Publishing

  • First results of a study of the Etruscan tunnel and other hydraulic works on the Ponte Coperto stream (Cerveteri, Rome, Italy)

    The Etruscan tunnel called Ponte Coperto is located NW of Rome, near the town of Cerveteri. The Ponte Coperto tunnel, mapped for the first time during the present research and dug mainly in volcanic tuff lying below the lava flow, was built to drain a valley of about 8.5 km2, probably between the VII and VI century B.C. Before the tunnel construction, part of the valley was ...


    By IWA Publishing

  • Optimization of pumping schedule based on water demand forecasting using a combined model of autoregressive integrated moving average and exponential smoothing

    Stable water supply to end users is the most important element in water supply systems (WSSs). The portion of energy used by the water distribution system is up to 40% of the total energy consumed by WSSs. To save energy cost for pumping systems, a number of attempts have been made. Especially, an optimization scheme for scheduling the water-pumping operation has attracted the interest of ...


    By IWA Publishing

  • Uncertainty in calibrating generalised Pareto distribution to rainfall extremes in Lake Victoria basin

    Uncertainty in the calibration of the generalised Pareto distribution (GPD) to rainfall extremes is assessed based on observed and large number of global climate model rainfall time series for nine locations in the Lake Victoria basin (LVB) in Eastern Africa. The class of the GPD suitable for capturing the tail behaviour of the distribution and extreme quantiles is investigated. The best ...


    By IWA Publishing

  • Bibliometric analysis of biosorption technology in water treatment research from 1991 to 2004

    A bibliometric analysis based on the Science Citation Index was carried out on biosorption technology-related publications during the time span of 1991 to 2004 in water treatment research in the ISI subject categories of environmental engineering, environmental sciences, and water resources. Results showed that yearly production has sharply grown. The US and Canada respectively produced 13% and ...


    By Inderscience Publishers

  • A history of water distribution systems and their optimisation

    Water distribution systems have a very long and rich history dating back to the third millennium B.C. Advances in water supply and distribution were followed in parallel by discoveries and inventions in other related fields. Therefore, it is the aim of this paper to review both the history of water distribution systems and those related fields in order to present a coherent summary of the ...


    By IWA Publishing

  • Tidal technology to stop flooding

    A large 1.6 metre valve that stops tidal waters getting into the stormwater network will help stop flooding in the city centre during heavy rainfalls.   High tidal levels and heavy rain cause problems in Porirua, New Zealand.  Porirua was the first Council in New Zealand to test the valves, which are a Scandinavian design called WaStop. The Councils Water Services Engineer Desmond ...


    By WaStop International AB

  • Filtration by Means of Ceramic Membranes - Practical Examples from the Chemical and Food Industries

    Traditionally, ceramic membranes have been used in waste water engineering. Meanwhile, they are applied in all areas where media need to be filtered, such as in recycling processes in the chemical industry, for cell separation in biotechnology or for fruit-juice filtration in the food industry. 1 Introduction Ceramic membranes based on aluminum oxide are an operationally reliable ...


    By atech innovations gmbh

  • 10CBM ISUZU Foam Water Fire Fighting Trucks

    Foam fire trucks are equipped with a variety of fire fighting equipment. Foam fire trucks are currently the primary tool for the most basic mobile fire fighting equipment. Fire engines are usually stationed in the fire department. In the event of an emergency, the fire trucks will arrive at the ...

  • Experimental characterization of PVC-O pipes for transient modeling

    The increasing use of plastic materials has modified several aspects of design and management of water distribution systems. With reference to the numerical modeling of transients, the definition of a correct rheological model of the pipe material is receiving an increasing interest. In this paper the behavior of the molecularly oriented polyvinyl chloride (PVC-O) pipes during transients is ...


    By IWA Publishing

  • Porirua New Zealand – WaStop® DN225 - Case Study

    Porirua City located 20 km north of Wellington has over 70 storm water outlets into the harbour. A number of these outlets are very flat on their approach to the harbour which generally means they are severely influenced by high tides. The problem with these outlets is that if a rain fall event coincides with a high tide, the ability of the storm water network to discharge is severely restricted. ...


    By Wapro AB

  • Hydraulic characterization and transient response of pressure reducing valves: laboratory experiments

    A pressure reducing valve (PRV) regulates the outlet pressure regardless of the fluctuating flow and varying inlet pressure, thereby reducing leakage and mitigating the stress on the downstream water distribution network (WDN). Notwithstanding the crucial importance of PRVs, few experimental data are available in the literature. The aim of this paper is to overcome this gap by means of the ...


    By IWA Publishing

  • Leak behaviour in pressurized PVC pipes

    The correct definition of the leak law, i.e. the relationship between the leak outflow, the total head at the leak and other relevant parameters such as the pipe material, can seriously affect the accuracy of the numerical models used for the management of water distribution systems, either if they are used to forecast the leakage reduction by pressure management or to locate and size the leaks ...


    By IWA Publishing

  • Water resource management in ancient Iran with emphasis on technological approaches: a cultural heritage

    Water is an essential component in the history of Iran. Due to the unfavorable distribution of surface water and the fluctuation of yearly seasonal streams, to fulfill water demands, ancient Iranians have tried to provide a better condition for utilization of water. Accordingly, elegant designs like qanats became an indispensable element of hydraulic systems, while institutional frameworks were ...


    By IWA Publishing

  • Transient tests for locating and sizing illegal branches in pipe systems

    In pipe systems illegal branches can take away remarkable water resources with negative effects from both the economic and technical points of view. Difficulties in pointing out illegal branches by means of steady-state pressure and discharge measurements are mainly due to the fact that, of course, such systems are not active according to a regular time schedule. In this paper the possibility of ...


    By IWA Publishing

  • AquaNES: demonstrating synergies in combined natural and engineered processes for water treatment systems

    EU-project AquaNES pursues the concept of combined natural and engineered water treatment systems (cNES) as response to water management challenges. AquaNES,  with participation of microLAN, considers bank filtration (BF), managed aquifer recharge (MAR)/soil-aquifer treatment (SAT), constructed wetlands (CW) and plus engineered pre- and ...

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