rainwater utilization Articles

  • Rainwater harvesting: quality assessment and utilization in The Netherlands

    The use of roof-collected rainwater as a freely available and sustainable alternative to drinking water produced by drinking water companies increases worldwide. Initially, rainwater is free of microbial contamination, but it may become contaminated by animals and humans or, alternatively, human pathogens may grow in stored rainwater resulting in a significant human health risk from infectious ...


    By IWA Publishing

  • 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, ...

  • Rainwater harvesting: An untapped resource

    The collection of rainwater as a source of relatively clean water has been a common practice of humankind since the dawn of civilization. Before the development of any treatment processes, it was the primary source of potable water for those people without access to other sources of water (rivers, lakes, etc.) As cities developed, infrastructure became more centralized. Municipalities took over ...

  • 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 ...

  • 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

  • Rainwater harvesting potentials for drought mitigation in Iran

    In order to evaluate the potential of rainwater harvesting (RWH) for mitigating water scarcity in a semi-arid zone of the country (Mashhad-Iran), three typical RWH systems were installed and monitored. The first system consists of 5,000 m2 natural ground catchment which was leveled and covered with plastic sheets allowing for maximum possible runoff generation. Surface runoff was conducted into a ...


    By IWA Publishing

  • Top Tips for Using Rainwater Domestically & Commercially

    Did you know that rainwater can be used (instead of mains water) for a huge number of activities and tasks domestically and commercially (inside and outside). As an alternative water source, rainwater recycling can help reduce typical household water usage by up to 70%, with hot water applications by as much as 85%. ...


    By Gutter Mate Ltd

  • Muller + Muller`s lakefront restrooms flush with rainwater

    A pair of highly sustainable comfort stations debuted on Chicago's lakefront over the summer, at 5800 North and 4000 South. Designed by Muller + Muller Architects, the seasonal-use brick structures use natural ventilation, daylighting and low-maintenance materials to minimize their ongoing use of resources. But prime among the pair of buildings' low-impact strategies is the use of captured ...

  • 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

  • Design and technical evaluation of improved rainwater harvesting system on a university building in Ethiopia

    Rainwater harvesting (RWH) has been practiced in Ethiopia since ancient times, but it has shown little development, because of inefficient techniques. Most efforts to capture rainwater did not show significant results owing to poor design and implementation resulted from slow technical development. This paper details design improvements tested on a demonstration site as well as an analysis of ...


    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

  • An examination of factors affecting sustainability of domestic rainwater harvesting systems in a rural, semi-arid region of Mexico

    Rainwater harvesting (RWH) is increasingly utilized today by populations to alleviate water supply issues, particularly in rural, dry environments. Limited research has considered, simultaneously, the numerous factors that contribute to sustainability – for example, social acceptance, water quality, and maintenance needs – of RWH. This research aimed to improve the understanding of factors ...


    By IWA Publishing

  • The 3rd RWHM INT. Conference, Goseong Korea, 20-24 May 2012

    Announcement of the 3rd RWHM Int. Conference The 3rd IWA Rainwater Harvesting Management International Conference will take place in Gyeongnam, Goseong County, Republic of Korea, from May 20 to 24, 2012. As a climate change adaptation countermeasure, a new paradigm of watershed rainwater management is gaining interest. From the lessons that Dinosaurs or some ancient ...


    By IWA Publishing

  • The 3rd RWHM Int. Conference, Goseong Korea, 20-24 May 2012

    The 3rd IWA Rainwater Harvesting Management International Conference will take place in Gyeongnam, Goseong County, Republic of Korea, from May 20 to 24, 2012.As a climate change adaptation countermeasure, a new paradigm of watershed rainwater management is gaining interest. From the lessons that Dinosaurs or some ancient civilization extinct, because of the failure of adaptation to climate ...


    By IWA Publishing

  • Case study - Client: Panduit Corporation

    Project: Rooftop rainwater to flush toilets. Panduit is a leading, world class developer and provider of innovative networking and electrical solutions. The company planned a 280,000 square foot new world headquarters building in Tinley Park, IL. (2008-2009) Challenge: To realize energy savings and to provide a healthy workplace and planet, the company wanted to achieve ...

  • Case study - Client: University of South Florida, Tampa, Fl

    Project: Rooftop rainwater to flush toilets. Patel Center for Global Solutions. Challenge: The Patel Center is the first LEED certified building at the university of South Florida, and sustainable water practices were an important objective for the building's stewards. With an estimated occupancy of 700 students and 70 teachers and employees per day, the system needed to ...

  • The South Australian Safe Drinking Water Act: summary of the first year of operation

    The Safe Drinking Water Act 2011 was introduced in South Australia to provide clear direction to drinking water providers on how to achieve water safety. The Act requires drinking water providers to register with SA Health and develop a risk management plan (RMP) for their water supply that includes operational and verification monitoring plans and an incident notification and communication ...


    By IWA Publishing

  • Low impact development: San Francisco’s green approach to stormwater management

     ABSTRACT This paper presents the methods, findings, and policy implications of a comprehensive evaluation of low impact development (LID) techniques for the City of San Francisco. LID is an innovative approach to stormwater management that relies on decentralized, small-scale stormwater facilities and site-design techniques to reduce wet weather flows and to remove stormwater ...

  • Comparison of stochastic models of rainfall processes in mountainous climatic conditions

    The main objective of this work was to find a stochastic simulation model that was suitable for designing a rainwater harvesting system for agricultural water utilization and irrigation water in a mountainous region. Several models were applied using daily rainfall data from two sites (Gangneung and Daekwanreung) to assess the accuracy and suitability of the model for simulating the daily ...


    By IWA Publishing

  • Water balance modelling of alternate water sources at the household scale

    Alternate water sources are being implemented in urban areas to augment scheme water supplied by a water utility to homes. These sources include residential wells, rainwater tanks and greywater systems. Greater water efficiency can be achieved when these systems are designed to match a water source to a given demand based on both water quantity and quality parameters. In this way the use of an ...


    By IWA Publishing

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