greywater Articles

  • Reduction of microbial risk associated with greywater by disinfection processes for irrigation

    Greywater is one of the most important alternative sources for irrigation in arid and semi-arid countries. However, the health risk associated with the microbial contents of these waters limits their utilization. Many techniques have been developed and used to generate a high microbiological quality of greywater. The main problem in the treatment of greywater lies in the nature of pathogenic ...


    By IWA Publishing

  • North Sydney high rise to recycle three million litres of water per year.

    The Ark building, the new landmark on the North Sydney CBD skyline, is set to recycle up to three million litres of water annually thanks to its greywater recycling plant. Located at 40 Mount Street, the Ark was completed in May this year and represents the first high-rise commercial building to achieve 6 Star Green Star V2 Design rating in NSW. Its rating can be attributed to sustainable ...

  • Household greywater treatment methods using natural materials and their hybrid system

    Discharge of household greywater into water bodies can lead to an increase in contamination levels in terms of the reduction in dissolved oxygen resources and rapid bacterial growth. Therefore, the quality of greywater has to be improved before the disposal process. The present review aimed to present a hybrid treatment system for the greywater generated from households. The hybrid system ...


    By IWA Publishing

  • Alternative Water Supply Systems

    Alternative Water Supply Systems covers technical, social, financial and institutional aspects associated with decentralized alternative water supply systems. These include systems for greywater recycling, rainwater harvesting, recovery of water through condensation and sewer mining. A number of case studies from the UK, the USA, Australia and the developing world are presented to discuss ...


    By IWA Publishing

  • Impacts of onsite greywater reuse on wastewater systems

    Together with significant water savings that onsite greywater reuse (GWR) may provide, it may also affect the performance of urban sewer systems and wastewater treatment plants (WWTPs). In order to examine these effects, an integrated stochastic simulation system for GWR in urban areas was developed. The model includes stochastic generators of domestic wastewater streams and gross solids ...


    By IWA Publishing

  • Greywater recycling system installed at Canary Wharf

    First combined Rainwater Harvesting/Grey Water Recycling System to be installed at Canary Wharf in London E14A multi-storey office at Canary Wharf will be installing the first combined Grey,Rain and AC Blow down water recycling system in Canary Wharf. The reclaimed/recycled water will be used for toilet flushing feeding WC's at 9000 litres per hour. The rain and grey water will be collected in a ...

  • Water cleaning and wetland construction

    Slippery Rock University's Macoskey Center for Sustainable Systems has served as an ideal locale for the study of biological waste and wastewater concerns in Western Pennsylvania. The Center's constructed ponds, waterless composting toilet and indoor greywater treatment system produced, in 19982000, great amounts of data on ecological approaches to wastewater treatment, which need to be reviewed. ...


    By Inderscience Publishers

  • Characterising microbial quality of household greywater

    In supplementing and substituting existing drinking water supplies with alternative water sources such as greywater, it is important that potential health impacts are considered and that water is safe for its designated purpose. It is difficult to detect greywater-associated gastrointestinal illness at the level of single households, such as might potentially occur following handling of untreated ...


    By IWA Publishing

  • Will greywater reuse really affect the sewer flow? Experience of a residential complex in Al Ain, UAE

    Reuse of recycled wastewater is one of the most feasible unconventional urban water sources in the United Arab Emirates (UAE). The extraction and reuse of greywater might affect the water and sewer pipe networks by changing flow characteristics. Therefore, the research question is how much greywater can be reused without affecting the existing water and sewer pipe networks? A residential ...


    By IWA Publishing

  • Reusing Greywater and Stormwater in California

    Raphael Garcia, an associate at Rana Creek, discussed the idea of reusing your greywater for your landscaping needs, saving money and helping the planet. The first ever TEDxMonterey took place on April 16th, 2010 and enjoyed participation from over 400 people both in person and online. Community leaders and innovators all assembled at the Monterey Institute of International Studies around the ...


    By IWA Publishing

  • Retirement community leads the way with Queenslands water sustainability

    RSL Care’s Sunset Ridge Retirement Community in Zilzie near Rockhampton is leading the way in securing a sustainable environment for its residents by installing one of the first Aquacell greywater treatment plants in Queensland. The Retirement Community contracted water recycling company Aquacell to design, install and maintain a greywater treatment plant which was completed in early ...

  • Greywater treatment with biological aerated filter (BAF) for urban water reuse

    Greywater is an excellent resource for service water in intra-urban reuse. By substituting fresh water with appropriately treated greywater, it is possible to save 30–50% of fresh water. In this paper, an up-flow pilot biological aerated filter (BAF) is tested for the treatment of synthetic greywater and the design parameters are determined. An organic load of 8▒kg▒COD/(m3▒d) allows to achieving ...


    By IWA Publishing

  • A comparative study of greywater from domestic and public buildings

    Greywater (GW) can be an important resource for urban water consumption, replacing potable water for purposes that do not require drinking water quality. If applied on a large scale, this practice will reduce the potable water demand and the wastewater produced in urban areas, minimizing the negative impacts and costs of water extraction and wastewater treatment. A correct characterization of GW ...


    By IWA Publishing

  • Effect of source water/wastewater quality on bacterial removal during electrocoagulation

    Bacterial removal during electrocoagulation (EC) was investigated employing samples from four different water/wastewater sources, namely, greywater, river water, secondary treated sewage and tap water spiked with Escherichia coli. Effects of current density and electrolysis time on the bacterial removal with aluminium electrodes were evaluated. For greywater, river water and secondary treated ...


    By IWA Publishing

  • A pilot study into public attitudes and perceptions towards greywater reuse in a low cost housing development in Durban, South Africa

    The benefits of greywater reuse have been identified to include the protection of water resources, recovery of nutrients for agriculture, savings in fresh water usage, reduction in volumes of wastewater discharged into wastewater treatment works, groundwater recharge and sustainable water resource management. An understanding of public attitude and perceptions towards the reuse of greywater ...


    By IWA Publishing

  • Assessment of the effects of greywater reuse on gross solids movement in sewer systems

    Onsite greywater reuse (GWR) and installation of water-efficient toilets (WETs) reduce urban freshwater demand and thus enhance urban water use sustainability. Research on GWR and WETs has generally overlooked their potential effects on municipal sewer systems: GWR and WETs affect the flow regime in sewers, and consequently also influence gross solids transport. To asses these impacts, a gross ...


    By IWA Publishing

  • Earthships: sustainable housing alternative

    This paper critiques an obscure form of sustainable architecture that addresses many of the environmental, social and economic challenges facing humanity. It focuses on the work of architect, Michael Reynolds, who has been experimenting with radical house designs and construction techniques over the past three and half decades. He addresses pollution, climate change and resource depletion by the ...


    By Inderscience Publishers

  • Impacts of housing development on nutrients flow along canals in a peri-urban area of Bangkok, Thailand

    Change of nutrients load and flow according to land-use change induced by housing development was investigated in Bang Yai, Nonthaburi, Thailand, which located in the peri-urban area of Bangkok. Each house in the newly developed residential community was regulated to be equipped with a septic tank to collect night soil. However, greywater and leachate from the septic tank was collected by a ...


    By IWA Publishing

  • Eco home in Brighton uses Greywater system

    Award winning eco home saves 100litres of water a day Having attended a self-build course, Jackie and Alan employed DRP, a firm of Brighton architects which produced a design that specified a whole range of eco technologies and materials including a grey water recycling system provided by Aquaco. Their new home achieved an 'Ecohomes' excellent standard thanks, in part, to water ...

  • Comprehensive monitoring of appropriate wastewater treatment at national and global level

    Coordinator:Korea Environment Institute (KEI) Where: Palais des Congrès (Rez de Jardin Level)- PC 2 - Endoume 3 When: Thursday 15 March 1700 - 1900 Targeted audience: Policy makers, practitioners, service providers, civil society To build comprehensive monitoring system at national and ...


    By IWA Publishing

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