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Showcasing Ireland's Water and Waste Water Research Dr Catherine Adley 7 th May 2014

Showcasing Ireland's Water and Waste Water Research Dr Catherine Adley 7 th May 2014 . Water Research at The University of Limerick. Current and Past Research: Groundwater Quality and Management Vulnerability Analysis of Water Supplies Water Management and Legislative Control

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Showcasing Ireland's Water and Waste Water Research Dr Catherine Adley 7 th May 2014

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  1. Showcasing Ireland's Water and Waste Water Research Dr Catherine Adley 7th May 2014 EI Workshop May 7th 2014

  2. Water Research at The University of Limerick • Current and Past Research: • Groundwater Quality and Management • Vulnerability Analysis of Water Supplies • Water Management and Legislative Control • Epidemiology of Waterborne Disease • Antibiotic Resistance in water derived bacterial isolates Our Expertise: Environmental Science: Use of GIS, legislative understanding and applied knowledge to tackle environmental problems Microbiology: Epidemiology of waterborne infectious disease, antibiotic resistance and emerging pathogens. Health:Analysis of areas of intrinsic vulnerability to water related disease, predictability modelling and Health Impact Assessment. Statistical Analysis:Statistical Consultancy Unit which establishes methodical statistical regimes to facilitate hypothesis testing and strengthen research publications. Research at UL benefits from ‘Collaborative Science’; utilising expertise from different areas to tackle multi-faceted research areas. EI Workshop May 7th 2014 Contact: Catherine.Adley@ul.ie

  3. Water Research at The University of Limerick EI Workshop May 7th 2014

  4. Water Research at The University of Limerick From the laboratory to the land: Spatial Planning for Industry Research at UL has focussed on: Methodologies and Systems for Water Management & Planning that can be applied in industrial and public spheres. • Sustainable Planning • Desk management • Visual planning • Cost Effective • Environmental management • Modelling • User Friendly • Communicable Data Collection Social Statistical Analysis Environment Infrastructure Spatial Analysis GIS ‘Derive before you drive!’ EI Workshop May 7th 2014 Contact: Catherine.Adley@ul.ie

  5. Unculturable microorganisms in water and wastewater Pembroke Lab University of Limerick- Contact Prof J T Pembroke tony.pembroke@ul.ie Using a combination of PCR of 16srDNA and rpoBgenes and DGGE (Denaturing Gradient Gel Electrophoresis) coupled with DNA sequencing we can identify organisms resident in water and waste water that are non culturable with culture based approaches. Examples using ATAD (AutothermalThermophilic Aerobic Digestion) or waste water sludge. Such techniques can be used to assess and evaluate safety of resident populations. Recent Bibliography Piterina, A.V., C. MacCausland, J. Bartlett and J.T. Pembroke (2008). Microbial ecology of autothermal aerobic digestion (ATAD): diversity, dynamics and activity of bacterial communities involved in treatment of municipal wastewater. P 526-535 In Mendez-Vilas, Antonio (ed.) Modern Multidisciplinary Applied Microbiology ISBN 3-527-31611-6 - Wiley-VCH, Weinheim Print ISBN: 9783527316113 Online ISBN: 9783527611904 Piterina, AV. J.Barlett and J.T. Pembroke (2009) 13C-NMR assessment of the pattern of organic matter transformation during domestic wastewater treatment by autothermal aerobic digestion (ATAD). Int. J. Environ. Res. Public Health , 6(8), 2288-2306 Piterina, AV. J.Barlett and J.T. Pembroke (2010) Evaluation of the Removal of Indicator Bacteria from Domestic Wastewater Processed by AutothermalThermophilic Aerobic Digestion (ATAD). Int. J. Environ. Res. Public Health 2010, 7(9), 3422-3441; Piterina, AV. J.Barlett and J.T. Pembroke (2010) Molecular Analysis of Bacterial Community DNA in Sludge Undergoing AutothermalThermophilic Aerobic Digestion (ATAD): Pitfalls and Improved Methodology to Enhance Diversity Recovery. DIVERSITY 2 (4), 505-526. Piterina, AV. J.Barlett and J.T. Pembroke (2011) Morphological characterization of ATAD thermophilic sludge; sludge ecology and settleability. WATER RESEARCH 45 (11) 3427- 3438. Piterina, AV. J.Barlett and J.T. Pembroke (2012) Phylogenetic Analysis of the Bacterial Community in a full scale AutothermalThermophilic Aerobic Digester (ATAD) treating mixed domestic sludge. WATER RESEARCH 46:2488-2504 Piterina, AV and J.T. Pembroke (2013) Use of PCR-DGGE based molecular methods to analyse microbial community diversity and stability during the thermophilic stages of an ATAD wastewater sludge treatment process as an aid to performance monitoring. ISRN Biotechnology vol2013 id 162645 Figure 2 Unculturable organisms (blue triangles) derived from ATAD wastewater by PCR analysis of 16s rDNA and their nearest affiliations using phylogenetic analysis. Figure 1 DGGE analysis of unculturable populations using V3-V5, V6-V8 and rpoB probes.

  6. There is Benefit from EI Innovation Partnerships There are many successes… EI Workshop May 7th 2014

  7. Energy Efficiency Improvement through Technology Optimisation and Low Grade Heat Recovery • An in depth energy analysis of the overall process of Green Farm Foods Ltd. (an industrial partner in the food processing industry) was carried out. • Shortcomings were identified in the energy management of the plant. • A simplified approach for technology optimisation was developedbased on the methodology of optimised heat management and GALGEM (General Approach for Low Grade Energy Management), using a combined tools package of Heat Exchanger Networks, Process Integration, Pinch and Exergy Analysis . • Applying the methodology, technical solutions for energy saving were proposed and an evaluation of the economic impact was carried implemented. The main advantages of the proposed solution are: • An increase in the exergy efficiency of the overall system: 3.1 times • An increase in the production of hot water at 50oC: 2.6 times • A reduction in waste water effluent from oven: 1.9 times A fuel saving of 12.1% despite the above listed benefits EI Workshop May 7th 2014

  8. Energy Efficiency Improvement through Technology Optimisation and Low Grade Heat Recovery The total estimated heat saving, in relation to the energy currently produced by the fuel is shown below in Table 1: Table 1: Heat Saving EI Workshop May 7th 2014

  9. External Air G = 0.313 Flue gas out G = 0.319 t = 42.1 oC t = 15 oC X = 0.0528 X = 0.0085 Cold water in 12 oC 81.7 kW CE Hot water out 62 oC Water 28 kg/h Hot Air G = 0.319 G = 0.313 Flue gas t = 47.4 oC t = 200 oC X = 0.0769 X = 0.1557 Heat +10.9 kW Boiler Steam IMPACT Fuel Fuel equiv. 109 kW (14.4%) φ = 0.85 Heat 92.6kWh Light Oil LCV = 39.1 MJ/kg 678 kW Emission saving 757 kW 63.241 kg/h CO2 31 kg/h NOx 0.137 kg/h X - humidity [kg water vapour/kg dry gas]; G – dry gas flow rate [kg dry gas/s]. H2O 42 kg/h Potential Impact of Second Generation contact Economiser EI Workshop May 7th 2014

  10. Energy Efficiency Improvement in Complex Industrial Systems Vacuum flash tank-condenser system has never performed as designed since commissioning of plant, recovering only 28.6 MW from the target 39.2 MW Solving this issue would provide savings of €4.5 million in additional energy costs per annum for the facility. GALGEM research group currently focusing on increasing efficiency of removal of the non-condensable gases from the system, which occupy valuable heat exchange area within condensers. EI Workshop May 7th 2014

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