closed water storage system Articles

  • Sedimentation and Subsurface Water Storage Systems

    When engineers and review authorities first encounter our Rainstore3 Subsurface Water Storage System, they will frequently ask how the storage chamber is maintained, especially for the removal of sediment. The structural nature of Rainstore3 is different from all other storage devices, employing a series of closely spaced, hollow, loadbearing columns. These columns make it impossible to ...


    By Invisible Structures, Inc.

  • 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

  • Pathogen Inactivation by a Closed Alakaline System

    ABSTRACTThe efficiency of advanced alkaline disinfection in closed systems has been demonstrated to depend on the balance of ammonia concentration, pH, exposure time, temperature, total solids content, post-treatment storage time and mixing effectiveness. When the alkaline system is a closed one, an additional pathogen stressor is added: pressure. The effect of the alkaline dosing has been ...

  • Raw material cycle: from chip to briquette to product - Case Study

    Thanks to their briquetting system from RUF Frischhut can redeploy production scrap and melt it again Ludwig Frischhut GmbH and Co. KG have closed the circle on their raw material cycle by utilising a briquetting press from RUF: cast chips produced during the machining of parts for water supply and sewage disposal are pressed to solid briquettes and then melted in the in-house foundry and ...

  • Water for Southern California: water resources development at the close of the century.

    INTRODUCTION In 1999, California observes the 150th year of the Gold Rush. Rather than an isolated historical event, it could be argued that the California Gold Rush never really ended, but rather that it was the first chapter in a mass migration unlike any other in history, both in scale and duration. At the founding of the Missions by Franciscan friars, Alta California was almost an ...


    By Hargis + Associates Inc

  • What Hydrogen Storage is Best for Me?

    There are a number of different Hydrogen storage options available. The one which is best for you depends on what is most important for your application: Compressed Economical Readily Available Metal Hydride (MH) High volumetric density (kg H2/ft3) Heavy May need more ...


    By Fuel Cells Etc

  • Treatment Options for Molten Sulfur Storage

    Documento sin título ...


    By Merichem Company

  • Solar hot water system

    Solar hot water systems (e.g. residential) do not produce steam, for example. Thus, solar hot water systems cannot push a steam turbine and will not generate electrical power. Solar hot water systems are used for heating and hot water requirements, not electrical power. If this is offsetting electrical hot water or electrical heat, then these are more like 'negawatts' than Terawatts. Steam ...


    By Power Inverter Co

  • Gasoline spill from underground storage tanks - Conoco, Inc.

    LOCATION:  Watsonville, CaliforniaPROJECT DATE:  July, 1987 to July, 1988CLIENT:  Conoco, Inc. BACKGROUND: A gasoline spill from underground storage tanks at a service station in Watsonville was discovered. Approximately 1,500 gallons were lost to the shallow aquifer of low permeability. Physical recovery operations were not possible. The California Regional Water Quality Control ...


    By Terra Systems, Inc. (TSI)

  • Implementing an offline storage facility for Washington, D.C. suburbs in InfoWorks CS

    Wallingford Software’s InfoWorks CS solution has been used to enable the optimization of an offline storage facility to meet strict requirements for the Washington Suburban Sanitary Commission’s (WSSC) Rock Creek sewer basin sanitary system. The WSSC is the largest water and wastewater utility in the Washington, D.C. metropolitan area, providing services to 1.6 million residents of Montgomery and ...


    By Innovyze

  • Current Trends in Modelling Water Distribution Systems

    Untitled Document Hydraulic Modelling is emerging from the infrastructure planning offices of our water utilities, where it continues to play a vital role in optimising capital investment projects, to take a ...


    By Innovyze

  • Water Sustainability

    I7.1  | Water Optimization – 30% Groundwater Use Reduction Tabatha Pellerin, Senior Program Manager, AECOM AECOM assisted the Entergy Lewis Creek gas/coal fired electric power plant with water conservation efforts prompted by a goal of 30% ...

  • ROMAG storm water screen system for the CSO works La Maladière in Neuenburg

    With the RSW-K high-capacity storm water screen and a emergency shut-off valve, the volume of the upstream sewerage system is optimally utilized and the receiving body ideally protected against contamination. The storm water screen removes visible solids from the sewage water before the water is discharged into the receiving body. At the La Maladière surplusing works, the ROMAG RSW-K ...


    By ROMAG aquacare ag

  • Methodology for Forensic Investigation of Potable Water Quality in Municipal Distribution Systems

    Abstract During routine regulatory potable water quality sampling in distribution systems related to the Total Coliform Rule, utilities can sometimes experience anomalous detections of total coliform bacteria and/or fecal coliform bacteria in the distribution system samples. Frequently, the regulatory-required retesting of the same sample locations reveals no detection of bacteria, and thus ...

  • Mono solar water filtration system provides safe drinking water to the st francis hospital

    Background The St Francis Nyenga Hospital is located in Nyenga, Uganda, close to the town of Jinja where the Nile River makes its long journey to Egypt from Lake Victoria. The Sisters of St. Francis have operated the hospital since its foundation in 1932. St Francis Hospital offers medical services free of charge to the poor and needy through their interactive community health and ...


    By NOV Mono - Mono Pumps Ltd

  • Water balance: case study of a constructed wetland as part of the bio-ecological drainage system (BIOECODS)

    The Bio-ecological Drainage System, or BIOECODS, is an urban drainage system located at the Engineering Campus, Universiti Sains Malaysia. It consists of a constructed wetland as a part of the urban drainage system to carry storm water in a closed system. In this closed system, the constructed wetland was designed particularly for further treatment of storm water. For the purpose of studying the ...


    By IWA Publishing

  • Water Tower Booster

    CSV makes Water Tower Seem Taller A booster pump using a Cycle Stop Valve can take the 25 PSI coming from your too short water tower and boost pressure to the 50 PSI or more if needed. Follow the scenario below.  Example with supply coming from a well field:  ...


    By Cycle Stop Valves, Inc.

  • The Generation of Pure Water

    As a world leading manufacturer of complex multi-port stainless steel diaphragm valves, GEMÜ has earned an excellent reputation in the biotech and pharmaceuticals’ markets. GEMÜ is now transferring the skills acquired in biotech and pharmaceutical applications, to water applications by designing and manufacturing plastic multi-port block valves. The space saving compact build, ...


    By Modern Pumping Today

  • Removal of bacteria, protozoa and viruses through a multiple-barrier household water disinfection system

    Municipal water disinfection systems in some areas are not always able to meet water consumer needs, such as ensuring distributed water quality, because household water management can be a contributing factor in water re-contamination. This fact is related to the storage options that are common in places where water is scarce or is distributed over limited time periods. The aim of this study is ...


    By IWA Publishing

  • BLOBEL Retention Systems - Spill Control, Containment of Contaminated Fire Fighting Water and Flood Protection

    Untitled Document BLOBEL manufactures and supplies manual and automatic Retention Barriers, Stormwater Drain Covers and Flood Protection Systems. The Retention ...


    By Blobel Umwelttechnik GmbH

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