residential water analysis Articles

  • Analysis of domestic water demand variables of a residential colony in Ajmer, Rajasthan (India)

    In this paper, significant variables of domestic urban water demand required for the purpose of estimation of urban water supply in five planned colonies of the City of Ajmer, Rajasthan, India, are identified. The data for these 16 variables are entered in the multiple linear regression (MLR) (stepwise) models in SPSS software, and domestic water demand models are developed. Based on these ...


    By IWA Publishing

  • Residential spill in VA

    Laboratory analysis of soil samples showed high values of TPH/DRO showing an initial value of 18,800 and 8,300 ppm and the samples of soil analyzed after treatment with VaporRemed showed a value of 290 ppm and 210 ppm. Both these values are below the stipulated 500 ppm of TPH/DRO. The TPH in the drain water after flushing with the product showed values below the detection levels. The project was ...


    By Sarva Bio Remed, LLC

  • Understanding urban residential end uses of water

    The ‘end use’ of water is a breakdown of the total household water usage such as water used for toilets, showers, washing machines, taps, lawn watering, etc. Understanding end uses of water will enable water planners, water authorities and household owners determine where water is used/wasted, how much and how often. This paper describes the end uses of water from a number of single-family homes ...


    By IWA Publishing

  • 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

  • Using smart meters to identify social and technological impacts on residential water consumption

    Studies have shown that householders' perceptions of their water use are often not well matched with their actual water use. There has been less research, however, investigating whether this bias is related to specific types of end use and/or specific types of socio-demographic and socio-demographic household profiles. A high resolution smart metering study producing a detailed end use event ...


    By IWA Publishing

  • Quantitative Uncertainty Analysis of Superfund Residential Risk Pathway Models for Soil and Groundwater: White Paper

    1. INTRODUCTIONThe quantitative assessment of uncertainties in the exposure parameters for the individual exposure pathways provides considerable information about the variability and sensitivity of the calculated results. These results are important because point estimates of these parameters are used to determine the extent of remediation necessary through the Superfund process. The point ...


    By Oracle

  • Quantitative assessment of residential water end uses and greywater generation in the City of Al Ain

    Diversification of water sources and water demand reduction are two vital tools in maintaining the security of urban water supplies in the United Arab Emirates (UAE). Reuse of greywater for non-potable end uses can be an effective alternative, but this resource has not yet received much attention in the UAE. Since the generation of greywater significantly differs from country to country – ...


    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

  • Water budget analysis and management for Bangkok Metropolis, Thailand

    The water budget of the Bangkok Metropolis system was analyzed using a material flow analysis model. Total imported flows into the system were 80,080 million m3 per year (Mm3 y–1) including inflows from the Chao Phraya and Mae Klong rivers and rainwater. Total exported flows out of the system were 78,528 Mm3 y–1 including outflow into the lower Chao ...


    By IWA Publishing

  • Inorganic and Carbonaceous Components in Indoor/Outdoor Particulate Matter in Two Residential Houses in Oslo, Norway

    A detailed analysis of indoor/outdoor physicochemical aerosol properties has been performed. Aerosol measurementswere taken at two dwellings, one in the city center and the other in the suburbs of the Oslo metropolitanarea, during summer/fall and winter/spring periods of 2002–2003. In this paper, emphasis is placed on thechemical characteristics (water-soluble ions and carbonaceous components) of ...

  • Environmental Justice: A Brief Historical Analysis

    Untitled Document ...


  • Energy and exergy analysis of a novel multigeneration system producing cooling, heating, power and pure water

    A novel multi–generation system producing power, pure water, cooling and heating is proposed and analysed in detail. The system comprises a hybrid generator-absorber heat exchanger (GAX), the Organic Rankine Cycle (ORC), the absorption heat transformer (AHT) and a desalination system. For comparison purposes, three working fluids, including R123, Isopentane and n–butane are considered in the ORC. ...


    By Inderscience Publishers

  • Estimating regional water demand in Seoul, South Korea, using principal component and cluster analysis

    ABSTRACTIn Seoul, the multiple regression models were used to estimate future water demand and to verify the ability of the water supply to cope with regional development. A regional development project extending over two districts was planned to stimulate the regional economy of Seoul in October 2003, and multiple regression models for each district were developed to verify the capacity of ...


    By IWA Publishing

  • Inequality and polarization analysis of urban water use in the Yangtze River Delta area, China

    Inequality and polarization are terms usually used to describe the overall dispersion of income distribution and the phenomenon of a divided society with a disappearing middle class and increasing rich and poor populations. However, these terms have seldom been used in water sciences. In this paper, the concepts of inequality and polarization are employed to analyze the distribution of urban ...


    By IWA Publishing

  • A Simple and Ultra-Sensitive LC/MS/MS Method for Analysis of N-Methyl Carbamates in Water

    IntroductionN-methyl carbamate pesticides are widely used due to their broad range of activity. Water sources can be polluted bycarbamates through surface water runoff from areas such as agriculture fields, golf courses, and residential properties.Human and animal studies have suggested that long-term, low-level exposure to carbamates can cause adverse healtheffects, including ...


  • Benefit–cost analysis of lake conservation with emphasis on aesthetics in developing countries

    Urban water bodies like lakes, wetlands and rivers carry a number of intangible benefits. In order to assess true value of societal welfare and benefits derived from these assets, social benefit cost analysis (SBCA) should be preferred. Hedonic pricing method has been used in the present study for capturing the aesthetic benefit of the Sukhna Lake of Chandigarh City and then using the results in ...


    By Inderscience Publishers

  • Case study - Halifax Water

    A section of the 30" diameter LCP Halifax-Bedford connector pipeline was identified by the client as being high-risk as it operated at a relatively high pressure (over 170psi), supplied a rapidly growing community and ran past residential areas along side of a highway. It would have been difficult to remove the line from service so Halifax Water selected PipeDiver to carry out a condition ...


    By Pure Technologies

  • Decentralized Water Reuse

    Water is an integral part of our society today. This vital resource is used in the operations of many industrial processes, human consumption, and for food production to name just a few. The increasing demands for water for agricultural, drinking and industrial processes has put significant strain on global fresh water supplies as the world's population continues to grow. In many parts of the ...

  • Solution of export coefficients of nitrogen from different land-use patterns based on Bayesian analysis

    The export coefficient model has been applied worldwide to the estimation of non-point source (NPS) pollution. Determining the export coefficients (ECs) from each pollution source and different space–time progressions is problematic because of uncertainty in the ECs of nitrogen from different land-use patterns. Bayesian theory uses the prior probability distribution and likelihood data to ...


    By IWA Publishing

  • Developing dry-weather flow and RDI/I models using regression analysis and unit hydrography

    InfoWorks CS has been used to build an accurate sanitary sewer flow model for Jefferson Parish, Louisiana, despite there being gaps in the available input data. Reliable predictions of the dry-weather and rainfall-dependent flows were derived by using techniques including unit hydrography and regression analysis to determine the required parameters. Jefferson Parish is close to New Orleans in the ...


    By Innovyze

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