Assessing factors affecting the reduction of phosphorus and faecal microbes in wastewater by decentralised treatment systems

J. C. Akunna, Juliette O'Keeffe, L. May, R. Allan

    Research output: Contribution to conferencePaper

    Abstract

    Environmental pollution and risks to human health can result from diffuse sources of pollution originating from decentralised wastewater treatment systems (DWTS). In particular phosphorus pollution can lead to eutrophication and the downgrading of the quality of water bodies, for example, under the Water Framework Directive (WFD) in the EU, and pathogen pollution can result in increased risks of human exposure to pathogens and impacts on industries such as shellfish growing and tourism. The study reported in this paper reviews the effectiveness of various DWTS in removing phosphorus and pathogens from onsite systems. It was found that DWTS are typically not designed to specifically treat these pollutants and the most common type of DWTS, septic tanks, provide only basic treatment. Additional treatment such as filtration-based or wetland systems must be used to achieve desired levels of treatments. The performance of these systems is affected by site specific conditions, such as input load and sources, and climatic conditions and as such operational characteristics and treatment measures must be designed to take account of these factors.
    Original languageEnglish
    Number of pages10
    Publication statusPublished - 16 Sep 2016
    Event13th IWA Specialized Conference on Small Water and Wastewater Systems - Athens, Greece
    Duration: 14 Sep 201616 Sep 2016
    Conference number: 13

    Conference

    Conference13th IWA Specialized Conference on Small Water and Wastewater Systems
    CountryGreece
    CityAthens
    Period14/09/1616/09/16

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    Akunna, J. C., O'Keeffe, J., May, L., & Allan, R. (2016). Assessing factors affecting the reduction of phosphorus and faecal microbes in wastewater by decentralised treatment systems. Paper presented at 13th IWA Specialized Conference on Small Water and Wastewater Systems, Athens, Greece.