An Cuardach ar Infreastruchtur Pobail - Bhainistithe Athleimneach in Eirinn

This presentation explores the search for resilient community infrastructure provision. Chun Straitéis Chomhtháite a fhorbairt d’Éireann, teastaíonn: Smaoineamh Nuálach, Teicneolaíochtaí Inbhuanaithe agus Athléimneach, Leasú ar churaclam oideachais, Gníomhaíocht Rialtais agus Phobail Comhordaithe, •Tuiscint do bháisteach agus fuíolluisce mar acmhainní luachmhara

Where There Is No Engineer Chapter 06

This chapter summarises the learning outcomes from the design program

Where There Is No Engineer - Designing for Community Resilience

Where There Is No Engineer – Designing for Community Resilience” is a design initiative coordinated by the Development Technology in the Community (DTC) Research Group, Technological University Dublin (DIT) and Engineers Without Borders (EWB) Ireland. The programme is delivered in partnership with various development partners and Engineers Ireland. It provides participants with the opportunity to learn about design, teamwork and communication through real, inspiring, sustainable and crosscultural development projects. By participating in the programme, students and professionals will have the opportunity to design creative solutions to real life development projects. This initiative formed part of the DIT team submission which received the Inaugural Engineers Ireland Education Award Best in Class 2017. The design brief is based on a set of six global development themes; • Climate Resilient Infrastructure • Self-Supply Water and Sanitation • Community Participatory Health • On and Off (Micro) Grid Energy Systems • Food Security • Applying Big Data in the Community Each theme explores the relationship between People, Technology and the Environment. The setting for this programme varies on an annual basis. The programme is open to students and professionals across the disciplines of engineering, architecture, urban planning, science, business, social science, arts, media etc

Rainwater Harvesting and Grey Water Recycling Systems

The benefits of water efficiency measures, rainwater harvesting and greywater reuse are principally water savings and reduced volume of consumption. Cost savings can accrue to the water supplier and water user. These benefits can be felt at a local level. Only with widespread use of such technology will reduced pressure on water resources and the supply infrastructure be realised. These technologies should be considered in the context of an overall water conservation strategy and each situation evaluated separately. A water audit should be undertaken to establish existing water usage and possible demands that can be met by using these technologies. A programme to develop public awareness and to source and promote these technologies is also required. Standards for fittings and legal standards for rainwater quality are required if these technologies are to become generally installed. The use of these technologies should be driven by the need to develop a sustainable strategy of urban water demand management

Thermal inactivation analysis of water-related pathogens in domestic hot water systems

This study aims to investigate whether hot water systems supplied with harvested rainwater present an increased risk to health over hot water systems supplied with potable mains water. It reviews previous studies investigating the health effects of utilising rainwater within domestic systems. The main risk to public health of mains-supplied hot water systems is the operation, maintenance, age, location and temperature of the system. Rainwater-harvesting systems contain an inherent water treatment train consisting of flocculation, settlement, sorption and bioreaction, and stored rainwater quality improves as metal and chemical contaminants settle to form sludge. Laboratory experiments were conducted using a variety of water-related bacteria to determine the time required to reduce a bacterial population by 90% at a given temperature. The results of this study show that after 5 min of exposure at 60 and 55°C, respectively, Salmonella, Pseudomonas aeruginosa and total viable count at 22 and 37°C concentrations were reduced to zero. Irish standards require hot water systems to be maintained at temperatures at or above 60°C. The conclusion from this pilot study is that hot water systems supplied with harvested rainwater do not present an increased risk to health over hot water systems fed with mains water

Rainwater Harvesting - A Zero Waste Approach to Water

This keynote presentation explores the concept of a zero waste approach to water supply. This is a precursor to the circular economy of water

Lynches Lane Reed & Willow Bed Facility Final Report South Dubin County Council

This final report will present results from a two year study to monitor the performance of a hybrid reed willow bed facility at Lynches Lane, in the administrative area of South Dublin County Council (SDCC). Design specifications for the facility are presented. Monitoring results for a two year period including influent and effluent parameters, rainfall, potential evapotranspiration, and soil classification are also presented and discussed. During the two year monitoring period the system achieved a zero discharge. This report will discuss the potential application of similar systems within South Dublin County Council administrative area. This is in the context of a recent EU judgment which declared that Ireland has failed to fulfill its obligations regarding domestic wastewaters disposed of through individual waste water treatment systems. The development of an appropriate zero discharge wastewater facility similar to the one operating successfully at Lynches Lane, has the potential to address this source of environmental pollution in Ireland

Physicochemical and microbiological quality of water from a pilot domestic rainwater harvesting facility in Ireland.

DTC Research Group, Dublin Institute of Technology personnel were commissioned in 2005 by the Department of Environment, Heritage and Local Government in Ireland to assess the feasibility of utilising harvested rainwater to replace treated mains water, for non-potable uses. A pilot project was set up. The project involved the design, installation, commissioning and monitoring of rainwater harvesting facilities in a rural housing development. A monitoring program was carried out to examine the physico-chemical and microbiological quality of the harvested rainwater. Harvested rainwater was sampled monthly and tested. Analysis of the harvested rainwater quality showed a consistently high quality of raw water in general compliance with the requirements of the European Communities (Quality of Bathing Water) Regulations for 100 % of samples and the European Communities (Drinking Water) Regulations, 2007 for 37% of sampling date

Pilot Rainwater Harvesting Study Ireland

There are no National Water Quality Standards for Rainwater Harvesting supply in Ireland. The Development Technology Centre (DTC) at the Technological University Dublin was commissioned by the National Rural Water Monitoring Committee in 2005 to assess the feasibility of using rainwater harvesting to supplement treated mains water for non-potable uses. The project involved the design, installation, commissioning and monitoring of rainwater harvesting facilities for rural domestic and agricultural water supply. This paper will present the results from the domestic pilot rwh project. A dual water supply system was designed and installed to use rainwater collected from the roof surface to supplement mains water supply for toilet flushing and out door uses. A series of flow meters and a data logger system were installed to monitor micro component household water usage. Over the 19 month monitoring period, rainwater harvesting resulted in a saving of 20% of the total mains water supplied to the house. Harvested rainwater was tested monthly for physico-chemical and microbiological parameters. All samples complied with EU bathing Water Regulations. Compliance with the more stringent Drinking Water Regulations was achieved for ten of the nineteen sampling dates. Laboratory experiments were conducted using a variety of water related bacteria to determine time required to reduce a bacterial population by 90% at a given temperature. The laboratory experiments showed that hot water systems maintained at adequately high temperatures (60 0C) for 5 minutes effectively reduced the bacterial load from E.coli, Enterococcus faecalis, Pseudomonas sp and Salmonella to zero

Physicochemical and Microbiological quality of harvested rainwater from an agricultural installation in Ireland

Members of DTC Research Group. Dublin Institute of Technology was commissioned in 2005 by the Department of Environment, Heritage and Local Government in Ireland to assess the feasibility of utilising rainwater to replace treated mains water for nonpotable uses. The project involved the design, installation, commissioning and monitoring of rainwater harvesting on a farm. Two monitoring programmes, Regime 1 and Regime 2, examined the physicochemical and microbiological quality of the harvested rainwater. Samples were taken monthly and tested. Regime 1 analysis showed that the microbiological quality of the rainwater from the site did not comply with the requirements of the European Communities Quality of Bathing Water Regulations, while the physicochemical quality complied with both Bathing and Drinking Water Standards with the exception of ammonia and lead. Regime 2 results showed a significant improvement and were compliant with the European Communities Quality of Bathing Water Regulations and showed near compliance with the European Communities Drinking Water Regulation