rainwater management Articles

  • Rainwater harvesting and management – policy and regulations in Germany

    This paper discusses the most important policies and regulations supporting the decentralized management, harvesting and utilization of rainwater in Germany, where such measures have been increasingly applied during the last few decades. The development and implementation of specific policies and regulations contributed significantly to that trend. They also work as incentives for the ...


    By IWA Publishing

  • Workshop: Exploiting the rainwater resource

    Professor Mooyoung Han chaired a workshop for the recently-created IWA Rainwater Harvesting and Management (RWHM) Group. Professor Han is well-known as an expert in the field of rainwater harvesting and was involved in the Star City project in Seoul, Korea. The Star City project was a landmark project for an increased focus on rainwater harvesting in Korea, a high-rise building complex on the ...


    By IWA Publishing

  • 100 Simple Ways To Save Water

    To improve water conservation install a rain sensor, it turns off your irrigation when it rains. Use a weather-based controller. The use of smart controllers can reduce water usage 24% a year on average. Learn about available rebate programs ...


    By Jain Irrigation, Inc

  • Capturing biogas energy to increase your business profits while safeguarding the environment

    Methane is a biogas produced from swine or cow manure, as well as food processing and meat packing waste. Methane is a natural gas, that when left uncollected, contributes to the harmful greenhouse gases in the earth’s atmosphere. When biogas is captured under a cover and becomes concentrated, it creates a corrosive and toxic byproduct called hydrogen sulfide. The gas generates a rotten egg ...

  • Water quality management for domestic rainwater harvesting systems in Fiji

    Health risks from drinking rainwater are relatively small in the developing world context, but action is needed to ensure water safety. Water safety plans (WSPs) use an approach to manage water quality that has shown signs of success with public and communal water supplies, but relatively little research has been done to investigate the application of WSPs to self-supply systems. The aim of this ...


    By IWA Publishing

  • An integrated approach to water management in Kayseri: rainwater collection and use in an amusement park

    Water management in urban areas of developing countries is a major environmental challenge for the future. Within the framework of the IWA Cities of the Future Programme, current water and wastewater management systems are investigated in Kayseri, Turkey, with the purpose of bringing water into the center of city life by a reformed pilot project. In order to assess both the quantity and dynamics ...


    By IWA Publishing

  • Improving collected rainwater quality in rural communities

    The country of Mexico is facing serious problems with water quality and supply for human use and consumption in rural communities, mainly due to topographic and isolation. In Mexico the average annual precipitation is 1,500 cubic kilometers of water, if 3% of that amount were used, 13 million Mexicans could be supplied with drinking water that they currently do not have access. Considering the ...


    By IWA Publishing

  • Harvested rainwater quality: the importance of appropriate design

    This paper summarises the physicochemical and microbiological quality of water from a rainwater harvesting (RWH) system in a UK-based office building. 7 microbiological and 34 physicochemical parameters were analysed during an 8 month period. Physicochemically, harvested rainwater quality posed little health risk; most parameters showed concentrations below widely used guideline levels for ...


    By IWA Publishing

  • Rainwater Harvesting: So Easy A Homeowner Can Do It

    Rainwater Harvesting, what’s that? It’s something so easy, a homeowner can do it. As most of you already know, the concept has been around for years, BUT…how do you make it a concept you can retrofit into your home? What was at one time an engineering marvel is now ...


    By Rainwater Warehouse

  • Comparing the microbial characteristics of rainwater in two operating rainwater tanks with different surface-to-volume ratios

    In this study, the microbial characteristics of rainwater in two tanks with different surface-to-volume ratios were investigated and compared to determine how the internal design features of storage tanks affect water quality. The particle and nutrient parameters of the rainwater, including turbidity, suspended solids, total organic carbon, and total phosphate, were lower in Tank 2, which had a ...


    By IWA Publishing

  • The impact of diurnal water use patterns, demand management and rainwater tanks on water supply network design

    The traditional use of long-term average consumption records and “peak factors” to determine water network design criteria does not account for allotment-scale diurnal water use patterns which impact upon the dynamics of water distribution systems. The diversity of allotment-scale diurnal water use patterns directly impacts on network dynamics. Demand management and rainwater tanks are likely to ...


    By IWA Publishing

  • Valuing stormwater, rainwater and wastewater in the soft path for water management: Australian case studies

    A Water Sensitive City is now commonly acknowledged best practice for designing the cities of the future. In Australia, the National Water Initiative has allocated high priority towards offering insight into successful water sensitive urban development projects, to facilitate capacity building within the industry. This paper shares innovative water sensitive projects implemented at Kogarah City ...


    By IWA Publishing

  • Rainwater-harvesting measures at BARC, Trombay, Mumbai: a case study

    The rapid dwindling of fresh water resources has focused worldwide attention on water conservation measures and integrated water management. Rain, the important component of the hydrological cycle, has therefore received enormous attention, and Rainwater Harvesting (RWH) has emerged as one of the most important and economical tools of water conservation. Bhabha Atomic Research Centre, with its ...


    By Inderscience Publishers

  • Rising Water Prices Mean Rainwater Harvesting Tanks are the Future

    Following one of the warmest summers in recent years and a number of water companies planning to raise bills by up to 8 per cent, it’s never been more important to plan for the future.  According to SWARM (South West Agricultural Resource Management) water is no longer a cheap and plentiful resource to farmers and growers, especially for those based in the South West and the ...


    By ENDURAMAXX

  • Sustainability evaluation of a primary school rainwater demonstration project in Tanzania

    Water shortages are widely prevalent in developing countries, affecting lives of people including schoolchildren, who miss classes while fetching water for daily use. A typical case was that of Mnyundo Primary School in Tanzania, East Africa. A rainwater harvesting (RWH) system was then constructed because of easy adaptability of the technology. The purpose of this study is sustainability ...


    By IWA Publishing

  • Safe water, household income and health challenges in Ugandan homes that harvest rainwater

    Having access to a safe water supply is important to improve a person's quality of life. We examine the relationship between the influence of water availability on monthly household expenditures (the dependent variable) and independent variables such as household characteristics, tank size, usage instructions and post-construction guidance, including the management of water-related health ...


    By IWA Publishing

  • Rainwater harvesting: theorising and modelling issues that influence household adoption

    Household adoption of rainwater harvesting (RH) systems recently boomed in Australian urban centres. As a sustainable supplement to the mains supply, water authorities regarded RH as a demand management device. Yet what actually motivated household RH adoption was not well understood. Burawoy's ‘extended case method’ was used to link grounded enquiry with 13 core theoretical concepts drawn from ...


    By IWA Publishing

  • Impacts of using rainwater tanks on stormwater harvesting and runoff quality

    The popularity of rainwater use in Australia depends completely on the individual householder's preference. The quality of reticulated water supplies in major cities of Australia is far superior to water stored in rainwater tanks. However, due to persistent drought and the implementation of stringent water restrictions, cities such as Melbourne have encouraged the use of rainwater harvesting ...


    By IWA Publishing

  • Contributions to the design of rainwater harvesting systems in buildings with green roofs in a Mediterranean climate

    Green roofs (GRs) are becoming a trend in urban areas, favouring thermal performance of buildings, promoting removal of atmospheric pollutants, and acting as possible water collection spots. Rainwater harvesting systems in buildings can also contribute to the management of stormwater runoff reducing flood peaks. These technologies should be enhanced in Mediterranean countries where water ...


    By IWA Publishing

  • Effects of rainwater harvesting on centralized urban water supply systems

    The potential effect of widespread rainwater harvesting practices on mains water demand and quality management are investigated for three different types of urban areas characterized by different roof area to water demand ratios. Two rainfall patterns are considered with similar average annual depths but very different temporal distributions. Supply reliability and the extent of reliance on the ...


    By IWA Publishing

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