residential water system Articles

  • Residential system design

    Rainwater systems can be as simple as placing a rain barrel beneath a downspout or they can be complex – engineered multi-tank systems with pumping stations and automated computer controls for supplying commercial and industrial process applications. Consider that in one installation in the Sumo arena in Japan, rainwater is supplied for flushing toilets and the cistern’s excess ...

  • Understanding residential rainwater harvesting

    We use the phrases rainwater harvesting, rainwater utilization, and rainwater collection to describe the process of collecting and using rainwater as an alternative or supplemental water source.  Rainwater harvesting is typically restricted to non-potable (Not for Drinking) applications like: landscape irrigation, vehicle washing, toilet flushing, laundry, cleaning and custodial services, ...

  • Ozone is Not Just for Residential Potable Water Treatment

    It has been over 170 years since the d iscovery of the ozone (O3) molecule. Since that time, scientists and engineers have been testing and evaluating ways to use ozone in many different processes, from water and air treatment to surface and food sanitation. The evolution was somewhat slow in the early days, taking nearly 50 years before Europeans found, in 1886, that ozone could be used for ...

  • Price elasticity of residential water demand in California

    This study used meta-analysis to assess the influence of price/price structures on residential water demand in two selected urban areas in California: East Los Angeles and South San Francisco. Monthly usage data for the years 2002–2011 were utilized to determine and compare price elasticities for periods when uniform and tiered rates were charged using fixed effects panel regression and ...


    By IWA Publishing

  • Analysing the dynamics of transitions in residential water consumption in the Netherlands

    Water infrastructure is inherently a socio-technical system. Rapidly changing urban trends and long-term uncertainties make water infrastructure management complex. This paper analyses the dynamics of residential water consumption in the Netherlands since 1900. During this period, different drivers for change had an influence on residential water use. Results show that different (f)actors and ...


    By IWA Publishing

  • ThyssenKrupp Residential, Germany - case study

    Overview ThyssenKrupp, a German industry leader in residential property management, managed 48,000 apartments and had a market worth of $2.9 billion Euro when it was sold in late 2004. Water System Challenges Originally, water was fed to every housing unit through pipes that were 30 to 40 years old. These pipes were corroded with significant rust and calcification ...

  • Estimating residential water demand in the absence of volumetric water pricing

    Rapid population growth has significantly increased the magnitude of water shortages in California. Although water shortages already exist, some of the state's utility systems are still not providing their residents with financial incentives for water conservation. Instead of using water meters to charge households according to their actual water usage, they are charging a flat fee for unlimited ...


    By Inderscience Publishers

  • Residential water treatment - the next big class action litigation

    TTHM, MTBE, and Perchlorate. Mention these potential water contaminants around municipal water and wastewater supervisors, the Department of Defense, or the major U.S. oil producers, and see how fast the room clears! The major oil companies are back in litigation after the failure of current treatment technologies to remove MTBE contamination in residential drinking water supplies, the Department ...


  • Impact of water source management practices in residential areas on sewer networks – a review

    Prolonged drought which has occurred everywhere around the world has caused water shortages, leading many countries to consider more sustainable practices, which are called source management practices (SMPs) to ensure water availability for the future. SMPs include the practices of water use reduction, potable water substitution and wastewater volume reduction such as water demand management, ...


    By IWA Publishing

  • Why septic treatment systems fail to reduce nitrogen in US residential areas

    The US EPA in cooperation with various state, academic, and NGO agencies has been involved in field tests throughout the eastern United States of conventional and advanced septic systems in order to determine “best” design for the reduction of total nitrogen (as a combination of ammonia-N plus nitrite+nitrate-N), phosphorus, and coliforms for residential (single and multifamily) septic systems ...


  • Alaska - Residential Synergy Shed case study

    Garness Engineering Group, Ltd. (GEG) based out of Anchorage, Alaska was contracted by the Alaska Native Tribal Health Consortium (ANTHC) to provide engineering services associated with the design and installation of septic systems throughout their Southcentral region. In 2009, GEG was tasked with providing a septic system for one of ANTHC’s residential customers located in Glennallen, ...


    By Quanics Incorporated

  • Multi-Purpose Steam Cleaning Machines for Residential Applications

    Steam cleaning machines available from the best distributors are widely used these days to manage a host of cleaning applications in residential settings. The machines are used to clean a range of surfaces including kitchen areas, patio furniture, bathrooms, floors, recycle bins, and more. These steamers also equip users with the easiest and most effective  means to disinfect and deodorize ...


    By Daimer Industries Inc.

  • Residential SSO To High Solids Anaerobic Digestion

    Source separated organics, including kitchen and garden waste, are processed in a dry AD plant. Resulting biomethane is injected into an adjacent natural gas pipeline. Winterthur, a city in the canton of Zürich in northern Switzerland, has the country’s sixth largest population, estimated at more than 100,000. In 2011, the City of Winterthur launched a 2050 energy policy to ...


    By BioCycle Magazine

  • Simulating residential indoor water demand by means of a probability based end-use model

    A probability based end-use model was constructed as part of this study to derive diurnal residential indoor water demand patterns on a temporal scale of 10 seconds. The end-use model derived the water demand patterns by aggregating the synthesised end-use events of six residential indoor end-uses of water in terms of the water volume required, duration and the time of occurrence of each event. ...


    By IWA Publishing

  • Redistributive impact of increasing block residential water rates: some empirical evidence from Mauritius

    This paper presents empirical results on progressive incidence of water charges that contradict conventional wisdom in developing and many developed countries. Family size in Mauritius is larger among high-income categories relative to low-income groups. Because of this unusual demographic dimension, increasing block tariffs coupled with lifeline rates below long-term marginal costs applicable to ...


    By IWA Publishing

  • Residential Steam Cleaners that Simplifies Almost All Cleaning Tasks in Homes

    Cleaning applications in homes are drastically different and demand the use of several cleaning equipment and chemicals. The cleaning sessions also involve lots of scrubbing, mopping, wiping, and dusting. Unfortunately, even the most sincere of efforts sometimes fail to produce the expected results. Cleaning professionals with in-depth understanding of the cleaning requirements in homes, ...


    By Daimer Industries Inc.

  • Top 10 residential green building trends to watch in 2012

    Here's a list of some top trends that will help accelerate growth in the residential market, as compiled by the Earth Advantage Institute. Urban density. Filling in the spaces is the name of the game as homeowners and builders opt to create more living space through the construction of accessory dwelling units (ADUs), laneway homes (bordering the back lane behind the main house), ...


    By GLOBE Foundation

  • Characteristics of small residential and commercial water systems that influence their likelihood of being on drinking water advisories in rural British Columbia, Canada: a cross-sectional study using administrative data

    Health officials often lack information about characteristics that predict which water systems are most likely to be placed on and to persist on drinking water advisories (e.g. health warnings offering advice or information). This study uses data collected by the Interior Health Authority in British Columbia to characterize water systems on advisory for microbiological threats and to identify ...


    By IWA Publishing

  • 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

  • Field survey of pollutants discharged from different types of residential area in the Yamuna River Basin, India

    The Ganges River, one of the most heavily populated and urbanized river basins in Asia, is polluted by increasing wastewater influent and water-borne diseases are caused in the metropolitan area. This study focused on the Yamuna River, a major tributary of the Ganges. We determined the pollutant load per unit of urban area classified by the income of the residents to help design an appropriate ...


    By IWA Publishing

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