metering bin Articles

  • Case Studies Demonstrate the Implications of Metering Errors

    General anomalies that occur in the management of apparent losses are identified and include determination of apparent loss indicators that fail to take into account both the random and bias errors inherent in metering. Estimating the volume of water losses that could be attributed to meter errors is also incorrectly assumed to be equivalent to the error limits (i.e. envelope) stipulated in ...


    By IWA Publishing

  • It’s a ‘no’ to Pay-as-you-throw

    Axion Director Keith Freegard, recently spoke to Local Authority Waste and Recycling arguing against a Pay-as you-Throw scheme suggesting an element of ‘punishment’ could be counter-productive in increasing recycling rates. In my view, the Pay-as-You-Throw principle would not be a good idea because it is another example of trying to use a ‘stick’ to punish people for their ...

  • Set of policy briefs for water management practitioners

    The content of these policy briefs is based on the outcomes from a series of workshops which took place in several different European cities in 2012. The workshops were designed to help governance bodies and citizens groups explore their visions for the future of urban water services. Participants ...


    By IWA Publishing

  • What You Need to Know about Electronic Automation of Hydraulically-operated, Diaphragm-actuated Control Valves

    Hydraulically controlled, diaphragm-actuated control valves are the mainstay of the waterworks industry to control pressure, flow, level, pump control, and at times to meter. These automatic control valves are controlled by pilots to do specific tasks and are mainly single-set-point systems. With the need to remotely actuate and control the valves and the applications becoming more complex, ...


    By IWA Publishing

  • Computation of Real & Apparent Losses through Pressure-Leakage Relationship Analysis

    This is a method currently being used by Manila Water Company Incorporated (MWCI) in computing for the Real and Apparent Losses of a District Metering Area (DMA). This method utilizes Pressure-Leakage Relationship, and Total Non-Revenue Water comparisons to determine the volume and percentage of Real and Apparent Losses of DMA’s. The Total Non-Revenue Water of DMA’s is basically ...


    By IWA Publishing

  • Effective and reliable communication: the International System (SI) of units

    Diversity of measurement units, particularly related to volume and volume-related quantities, has become common in papers and presentations from the Water Reuse Specialists Group activities. Metric system units, like cubic meter (m3), traditionally used by authors from numerous European countries, share written space in technical documents with new measurement units (megaliters, gigaliters), ...


    By IWA Publishing

  • Batch production of confectionary and dessert mixes

    Description: Universal feeding and mixing stations for the production of confectionary, cake and dessert mixes Clients: Systems commissioned for high volume, quality food manufacturers Products: Sugar, starch, cacao, flavours, vitamines, liquids Requirement: Flexible, high throughput mixing plants installed into buildings with limited headroom. Frequent recipe changes demand simple change ...


    By Gericke

  • Decision support system for main pumping station control, BOS Delfland

    The waterboard Delfland uses a DSS to automatically control the 7 pumping stations in its main canal system. Delfland manages a small part of the dutch watersystem in the south-west of the country. The area is mostly below sealevel and it is intensively used, for residential areas, greenhouses and industry. It is only 400 km/2, yet houses 1,6 million inhabitants, multiple cities among which the ...


    By IWA Publishing

  • How to boost the performance of Pressure Reducing Valves without breaking the budget.

    Pressure Management has become a very useful tool around the world for controlling leakage in piping networks. This has primarily been achieved by utilities forming DMA’s (District metered Areas) and pressure zones in their systems. Typically, pressure is managed by utilizing a pressure reducing valve that can either have a single fixed pressure reducing pilot set point or pressure flow ...


    By IWA Publishing

  • Cost recovery in urban water services : select experiences in Indian cities

    The report draws on a Water and Sanitation Program (WSP) study from 2008 which made a comparative analysis of 23 Urban Local Bodies (ULBs)-looking at seven cities in detail and another 16 based on secondary data-to understand the factors affecting cost recovery in India and provide an indication of current performance. It also draws out examples and lessons to inform reform approaches and ...


    By IWA Publishing

  • Lime stabilization of Septage - San Fernando, La Union

    In mid-2008, engineers and staff from the San Fernando City health, planning, environment and engineering offices engaged in the first stage of a pilot demonstration project to determine the effectiveness of lime stabilization as a method of treating domestic septage in the Philippines. The Department of Health in the Philippines (DOH) also recognizes that lime stabilization is a viable ...


    By IWA Publishing

  • The Challenge of Reducing Maynilad`s Non-Revenue Water

    Non-revenue water (NRW), poses a very big challenge to many water utilities today. Reducing if not totally eliminating non-revenue water remains the primary concern not only in the Philippines and the Asian region but also world-wide, especially in these times where sources of drinking water supply is rapidly declining. Better and more efficient water supply management is needed to optimize ...


    By IWA Publishing

  • Did you know? Part 2: Water Scarcity

    Water scarcity is among the main problems to be faced by many societies and the World in the 21st century. Water use has been growing at more than twice the rate of population increase in the last century, and, although there is no global water scarcity as such, an increasing number of regions are chronically short of water. Water scarcity already affects every continent. ...


    By IWA Publishing

  • Better Management of Wastewater: Smiths Snackfood Company

     A consultancy study of company operations involved staff at all levels of the organisation and led to greater environmental awareness and significant cost savings and environmental benefits. Initial projects focussed on reducing solids in effluent to eliminate overloading of the wastewater treatment plant servicing the potato and corn processing lines. The initiatives taken have resulted in ...


  • Melaka Gets Tough on Non Revenue Water Loss and Claims Two Awards

    Melaka is a relatively small state on the southwest side of the Malay Peninsula with a city so rich in history and beauty that it is listed as a UNESCO World Heritage site. With a population around 850,000, the Melaka Water Company Ltd. (SAMB) manages roughly 270,000 service connections for commercial and residential customers. In 2008 the city embarked on an aggressive plan to upgrade ...


    By Singer Valve Inc.

  • TDG Amendment 12 - Update

    Labels, Markings, Placards, and more (OH MY!) All in “Consolidation Bin” and “Overpack” amendments As promised late last month, Transport Canada has published the Dangerous Goods Safety Marks (commonly referred to as the “12th”) Amendment to the Transportation of Dangerous Goods regulations (TDGR). The stated purpose of this amendment is to bring the TDGR a ...


    By The Compliance Center (ICC)

  • A Thirsty Future for the Middle East

    Whilst some dream of a rosy future for the Middle East, the more pragmatic see a future devoid of roses or any naturally unsustainable vegetation for that matter, too costly a use for an evermore precious commodity, Water. His Highness General Sheikh Mohammed Bin Zayed Al Nahyan, the Crown Prince of Abu Dhabi and Deputy Supreme Commander of the UAE Armed Forces, recently identified water as a key ...

  • Pro-X Nutraceuticals, a Roex company, triples mixing capacity, reduces labor and waste

    A former athlete and body builder named Rod Burreson searched for non-pharmaceutical supplements to enhance his physical condition, but none met his quality requirements, prompting him to develop and personally test his own formulations. Based on the health benefits he experienced, Burreson started a company in 1994 called Roex, Inc., that used contract manufacturers and packagers to ...

  • In-Vessel Composting of Residential Organics

    In 1994, the Regional Municipality of Peel began work on a system for residential organic residuals collection and composting. Although Peel had been promoting backyard composting, greater diversion rates were sought. The public was surveyed to determine what level of cooperation could be expected for source separation and setting out of food, soiled paper products, yard trimmings, etc. “We knew ...


    By BioCycle Magazine

  • Zero waste on San Francisco’s horizon

    Diversion rate of 77 percent (and climbing) is a reflection of sound policy, committed municipality and willing waste hauler. Part I WHEN BioCycle visited San Francisco in April, we were invited to tag along with a British film crew making a documentary on how the world deals with its trash. Hosted by Academy Award winning actor Jeremy Irons, the project had landed in San Francisco because of the ...


    By BioCycle Magazine

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