Quantifying contributions of domestic wastewater treatment systems to nutrient fluxes in stream headwaters

Effective implementation of the Water Framework Directive requires a reappraisal of conventional approaches to water quality monitoring. Quantifying the impact of domestic wastewater treatment systems (DWWTS) in Irish catchments is further complicated by high levels of natural heterogeneity. This paper presents a numerical model that couples attenuation to flow along different hydrological pathways contributing to river discharge; this permits estimation of the impact of DWWTS to overall nutrient fluxes under a range of geological conditions. Preliminary results suggest high levels of attenuation experienced
before DWWTS effluent reaches bedrock play a significant role in reducing its ecological impact on aquatic receptors. Conversely, low levels of attenuation in systems discharging directly to surface water may affect water quality more significantly, particularly during prolonged dry periods in areas underlain by low productivity aquifers (>60% of Ireland), where dilution capacity is limited.

A field study assessing the impact of on-site wastewater treatment systems on surface water quality in a Co. Monaghan catchment

Poorly functioning on-site wastewater treatment systems (OSWTS) can be among the many sources of pollution to groundwater and surface water, which are of critical concern owing to potential human and ecological health risks. An investigation into the effects of on-site wastewater treatment systems (OSWTS) on surface water quality has been undertaken at several sites within a catchment in Co. Monaghan. The study sites were located in areas of 'low’ permeability, suggesting that run-off usually dominates over infiltration. Poor treatment performance of OSWTS within the catchment were found to be the result of several factors, including location in areas with unsuitable soil and site characteristics, incorrect installation, poor maintenance and inappropriate operation by the home owner.

The Biomuse Trio in Conversation

The Biomuse Trio (R. Benjamin Knapp, Eric Lyon, Gascia Ouzounian) was formed in 2008 to perform computer chamber music integrating performance, laptop processing of sound and the transduction of bio-signals for the control of musical gesture. The work of the ensemble encompasses hardware design, audio signal processing, bio-signal processing, composition, improvisation and gesture choreography. The Biomuse Trio has performed and lectured across North America and Europe, including at BEAM Festival, CHI, Diapason Gallery, Green Man Festival, Issue Project Room, NIME, Science Gallery Dublin, STEIM and TheatreLab NYC.

Ratoath College - Building, 2007, 2015

Awards:
2007 Opus Architecture and Construction Awards - Highly Commended
2008 Architectural Association of Ireland - Selected for Exhibition
2008 RIAI Best Educational Building
2009 RIBA - Short listed International Award
2009 Imagine Inspirational School Design Compendium
2010 Irish Nomination to OECD Compendium of Exemplary Educational Facilities

Reviews and Publications:
2010 World Architecture News
2009 Perspective Vol 18/No 6
2009 Plan - Art of Architecture and Design
2008 Architecture Ireland, Dublin Volume 236
2007 World Architecture News
2008 Ratoath College, McGarry NÍ Éanaigh Architects ISBN 9780955914102

Ballyfermot Leisure and Youth Centre - Building, 2009

Awards:
Award Best Leisure Building - 2009 RIAI Irish Architecture Awards
Special Mention 2009 AAI Awards for Excellence in Architecture

Reviews:
2010/11 RIAI Irish Architecture Review, Dublin Volume 1
2009 AAI New Irish Architecture Cork Volume 24
2009 Architecture Ireland, Dublin Volume 245
2009 A+D Magazine, Brussels Issue No.32
2009 A10 Magazine, Amsterdam Issue 26, March April 2009
2009 PLAN Magazine, Dublin March 2009
2009 PLAN Irish Architecture, Dublin Review 2009
2008 The Irish Times, Dublin November 27th
2008 The Architects Journal, London Volume 228, November 13th

Dunshaughlin Parochial Centre - Building, 2010

Awards:
Dunshaughlin Pastoral Centre: Nominated Irish Entry, 2010 EU Prize for Contemporary Architecture : Mies van der Rohe Award
Dunshaughlin Pastoral Centre: Highly Commended, 2010 RIAI Irish Architecture Awards : Best Cultural Building Category
Dunshaughlin Pastoral Centre: Highly Commended, 2010 Opus Architecture and Construction Awards

Reviews:
2011 AAI New Irish Architecture Volume 26 Cork
2011 A+D Magazine Brussels, Issue No.36
2010 A10 Amsterdam 26th July 2010
2010 Architecture Ireland, Dublin Volume 251
2010 Plan Magazine, Dublin November December 2010
2010 The Architects Journal, London15 July 2010