water level pressure Articles

  • Reaching economic leakage level through pressure management

    High non-revenue water (NRW) values as a percentage of system input volume form a serious problem that many water utilities worldwide have to confront nowadays. There are ways to mitigate the effect by adopting strategies with short- and long-term results. Water pressure management (PM) is one of the most efficient and effective NRW reduction strategies. To calculate pressure management of ...


    By IWA Publishing

  • Water Level Measurements-Part 1

    Confused about which instrumentation to use in your water level monitoring system? In-Situ offers two categories of pressure sensors for water level measurements: absolute or non-vented sensors, and gauged or vented sensors. They look the same and both measure pressure and water level, but they have drastically different applications, outputs and accuracy. The absolute (or non-vented) water level ...


    By In-Situ, Inc.

  • European waters - assessment of status and pressures

    EEA 2012 'State of Europe's water' assessments 2012 is the European year of water in which the European Commission published its 'Blueprint to safeguard Europe's waters' (referred to hereafter as the Blueprint) comprising reviews of the Water Framework Directive (WFD) (2000/60/EC), water scarcity and drought and adaptation to climate change policies. To accompany and inform the blueprint, ...

  • Intermittent operation of low pressure UF membranes for sewage reuse at household level

    A household-scale wastewater treatment system was operated with domestic sewage. The system could recover gardening/irrigation water from raw sewage or secondary effluent by low pressure ultrafiltration (UF). The UF membranes (surface area = 3.5 m2, pore size = 0.04 μm) were operated at constant transmembrane pressure (0.13 bar). The proposed technology was examined for ...


    By IWA Publishing

  • The joint effect of water price changes and pressure management, at the economic annual real losses level, on the system input volume of a water distribution system

    This study attempts to examine the factors affecting the residential water demand level in the city of Kozani in Greece. Based on an 8-year (2005–12) detailed sample of residential water demand panel data, the values of the water price (WP) elasticity of residential demand are identified, and the influence of socio-economic and demographic factors and climate conditions on water-use levels and ...


    By IWA Publishing

  • Determination of diurnal water level fluctuations in headwaters

    The aim of this paper is to study diurnal fluctuations of the water level in streams draining headwaters and to identify the controlling factors. The fieldwork was carried out in the Gryżynka River catchment, western Poland. The water levels of three streams draining into the headwaters via a group of springs were monitored in the years 2011–2014. Changes in the water pressure and water ...


    By IWA Publishing

  • Water Pressure Measurement with Time Domain Reflectometry Cables

    Attributes of the remote measurement of piezometric water pressure and water level with time domain reflectometry (TDR) techniques are investigated. The evaluation includes a two-wire system for unusually small riser tubes as well as parallel wire and air-filled or hollow coaxial cable for typical installations. Comparison of TDR cable and commercial pressure transducer technology shows coaxial ...


    By ASTM International

  • A Comparison between Steam and Hot Water Pressure Washers

    Steam pressure washer machines are a gradual extension of hot water pressure washers. The main difference lies in the output temperature. While steam pressure cleaners provide an output of 330 degrees Fahrenheit, hot water machines offer an output pressure of 210 degrees Fahrenheit only. The other important specifications, such as output pressure and technologies present, do not change much ...


    By Daimer Industries Inc.

  • Knowing All About Hot Water Pressure Washers

    Two types of hot water pressure washer machines are currently available: ordinary hot water machines and tri-mode machines. Before going into details of these machines, it would be worthwhile to have a look into some of their basic aspects. Basic Features A hot water pressure washer can provide an output temperature of up to 210°F. For this, these machines should contain ...


    By Daimer Industries Inc.

  • The Next Generation of Level Control

    Water is an essential resource for everyday life, and thus having a way to store and distribute water is of critical importance. Water storage tanks have been designed to compensate for varying water demands during high and low ...


    By Singer Valve Inc.

  • Why You Need a Carpet Shampooing Machine with Higher Pressure Levels for Commercial Applications?

    If you operate a contract cleaning business, you will often be hired to clean carpets in commercial areas. Therefore, cleaning contractors must invest in the right equipment, such as a high-quality carpet shampooing machine. Your equipment forms the lifeline of the business. Sturdy, durable, efficient machines will raise productivity, thereby raising profitability. A carpet shampooing machine ...


    By Daimer Industries Inc.

  • A new method estimates TEG purity versus reconcentrator temperature at different levels of pressure in gas dehydration systems

    There are several processes and principles for obtaining high triethylene glycol (TEG) purity in gas dehydration process. All methods are based on the principle of reducing the effective partial pressure of water in the vapour space of the glycol reboiler, and hence obtaining a higher glycol concentration at the same temperature. One of the most common methods for enhancement of the glycol ...


    By Inderscience Publishers

  • Case study - In-line aeration system provides required level of dissolved oxygen in pressurized effluent line. Hancock County, MS

    The Problem: The treated effluent from all wastewater treatment plants across the country must meet local dissolved oxygen (DO) limits before discharging into receiving waters. A new municipal WWTP in southern Mississippi, designed by Carollo Engineers, has a pressurized effluent line to discharge into a local river. Since the line is pressurized, the standard method for increasing DO, a cascade ...

  • Everything Depends on Pressure And Maintenance

    Energy and cost efficiency of biological treatment plants Every biologically working sewage plant needs a compressed air station for the oxygen supply of the aeration basin. This station only works at the highest possible energy efficiency level if excessive plant pressure through the subordinated system, excessive intake temperatures due to insufficient aeration and deaeration, and ...

  • Evaluating changes in water institutions: methodological issues at the micro and meso levels

    ABSTRACT Institutions (formal rules) governing water allocation and use are often critical to a nation's development and prosperity. It is often necessary to change water institutions as economic, physical and political circumstance change. In this paper, a framework is presented to help understand the potential and need for change in water institutions. The pressure for institutional change ...


    By IWA Publishing

  • An adaptive framework to differentiate receiving water quality impacts on a multi-scale level

    The paradigm shift in recent years towards sustainable and coherent water resources management on a river basin scale has changed the subject of investigations to a multi-scale problem representing a great challenge for all actors participating in the management process. In this regard, planning engineers often face an inherent conflict to provide reliable decision support for complex questions ...


    By IWA Publishing

  • Senix Water Level Sensors Drive Irrigation Automation Project

    Australia’s Water Crisis Irrigation management is serious business in Australia especially within the Murray-Darling Basin, a 1,000,000 square kilometer watershed that is home to Australia’s most productive agricultural land. The basin’s 23 rivers have ...


    By Senix Corporation

  • Using a new pressure index for water distribution systems upgradation improvement evaluation

    Potable water distribution systems (WDS) require upgrade strategies based on a pre-defined time interval which is identified by the responsible water authorities. The main goal of a potable water system upgrade is maintaining the standard and acceptable level of service after the occurrence of increases in the serviced population, asset ageing, and/or development of the serviced area. Defining ...


    By IWA Publishing

  • Intelligent pressure management reduces water losses and minimizes pipe brakes

    Leaks in water pipes and leaking valves in urban water distribution systems and pipeline networks, mainly in developing and threshold countries, are the reason for water losses of up to 50 percent in relation to the water quantity being produced in the water works. The articele of the 'Industrial Valves 2009' presents an effective pressure management on the basis of an intelligent control ...

  • Benefits of Hot Water Pressure Washers for Wet Steam Cleaning

    Hot pressure washers have revolutionized commercial cleaning processes. Roads, gas stations, boats, cars, airplanes, factory floors, basements, kitchens and similar areas can now be cleaned more easily than before. No longer are contractors depending exclusively on tedious methods such as trailers with rotary brushes to handle layers of grease and grime. Hot water pressure washers hold many ...


    By Daimer Industries Inc.

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