Browsing Civil Engineering by Author "Fenton, Owen"
Now showing items 1-18 of 18
-
Antimicrobial compounds (triclosan and triclocarban) in sewage sludges, and their presence in runoff following land application
Healy, Mark G.; Fenton, Owen; Cormican, Martin; Peyton, Dara P.; Ordsmith, N.; Kimber, K.; Morrison, Liam (Elsevier, 2017-04-28)The reuse of treated municipal sewage ( biosolids ) on land is an effective method to divert waste away from landfill and to use an alternative, low cost method of fertilisation. While legislation has mainly focused on the ... -
Bioaccumulation of metals in ryegrass (Lolium perenne L.) following the application of lime stabilised, thermally dried and anaerobically digested sewage sludge.
Healy, Mark G.; Ryan, Paraic C.; Fenton, Owen; Peyton, Dara P.; Morrison, Liam (Elsevier ScienceDirect, 2016-05-09)The uptake and accumulation of metals in plants is a potential pathway for the transfer of environmental contaminants in the food chain, and poses potential health and environmental risks. In light of increased population ... -
Developing and validating a decision support tool for media selection to mitigate drainage waters
Ezzati, Golnaz; Healy, Mark G.; Christianson, Laura E.; Feyereisen, Gary; Thornton, Steven; Daly, Karen; Fenton, Owen (Elsevier, 2019-07-26)The nitrate nitrogen (NO3-N) and ammonium (NH4-N) and/or dissolved reactive phosphorus (DRP) load in drainage water from farms can be managed by reactive or biological media filters. The nutrient content of the drainage ... -
Estimation of Maximum Biosolids and Meat and Bone Meal Application to a Low P Index Soil and a Method to Test for Nutrient and Metal Losses
Lucid, Joseph D.; Fenton, Owen; Healy, Mark G. (2013)The aim of this study was to develop (1) a method for the calculation of the maximum legal rate at which meat and bone meal (MBM) and biosolids should be applied to land, which took into account the soil phosphorus (P) ... -
Evaluation of amendments to control phosphorus losses in runoff from dairy soiled water.
Fenton, Owen; Serrenho, Ana; Healy, Mark G. (Springer, 2011-12-01)Amendments with the potential to reduce phosphorus (P) losses from agricultural grassland arising from the land application of dairy-soiled water (DSW) were investigated. Optimal application rates were studied, and associated ... -
A framework for determining unsaturated zone time lags at catchment scale
Vero, Sara E.; Healy, Mark G.; Henry, Tiernan; Creamer, Rachel E.; Ibrahim, Tristan G.; Richards, Karl G.; Mellander, Per-Erik; McDonald, Noeleen T.; Fenton, Owen (Elsevier Masson, 2016-12-10)The responses of waterbodies to agricultural programmes of measures are frequently delayed by hydrological time lags through the unsaturated zone and groundwater. Time lag may therefore, impede the achievement of remediation ... -
Impacts of zeolite, alum and polyaluminium chloride amendments mixed with agricultural wastes on soil column leachate, and CO2 and CH4 emissions.
Murnane, John G.; Fenton, Owen; Healy, Mark G. (Elsevier, 2017-11-02)This study aimed to quantify leaching losses of nitrogen (N), phosphorus (P) and carbon (C), as well as carbon dioxide (CO2) and methane (CH4) emissions from stored slurry and from packed soil columns surface applied with ... -
Influence of soil phosphorus status, texture, pH and metal content on the efficacy of amendments to pig slurry in reducing phosphorus losses
O’ Flynn, Cornelius J.; Fenton, Owen; Wall, David; Brennan, Raymond B.; McLaughlin, Mike J.; Healy, Mark G. (Wiley, 2017-12-13)Cost effective strategies for using chemically amended organic fertilizers need to be developed to minimize nutrient losses in surface and groundwater. Coupling specific soil physical and chemical characteristics with ... -
An integrated assessment of nitrogen source, transformation and fate within an intensive dairy system to inform management change.
Clagnan, Elisa; Thornton, Steven F.; Rolfe, Stephen A.; Wells, Naomi S.; Knoeller, Kay; Murphy, John; Tuohy, Patrick; Daly, Karen; Healy, Mark G.; Ezzati, Golnaz; von Chamier, Julia; Fenton, Owen (Public Library of Science, 2019-07-23)From an environmental perspective optimised dairy systems, which follow current regulations, still have low nitrogen (N) use efficiency, high N surplus (kg N ha-1) and enable ad-hoc delivery of direct and indirect reactive ... -
A methodological framework to determine optimum durations for the construction of soil water characteristic curves using centrifugation
Vero, Sara E.; Healy, Mark G.; Henry, Tiernan; Creamer, Rachel E.; Ibrahim, Tristan G.; Forrestal, Patrick J.; Richards, Karl G.; Fenton, Owen (De Gruyter Open, 2016-12-30)During laboratory assessment of the soil water characteristic curve (SWCC), determining equilibrium at various pressures, is challenging. This study establishes a methodological framework to identify appropriate experimental ... -
Nitrate removal rate, efficiency and pollution swapping potential of different organic carbon media in laboratory denitrification bioreactors.
Healy, Mark G.; Ibrahim, Tristan; Lanigan, Gary; Serrenho, Ana; Fenton, Owen (Ecological Engineering, 2012-01-01)Laboratory denitrifying bioreactors, which use an organic carbon (C) rich media to enhance microbial reduction of nitrate (NO3-) to nitrogen (N) gases, are used worldwide to protect surface and groundwater. To highlight ... -
Nutrient, metal and microbial loss in surface runoff following treated sludge and dairy cattle slurry application to an Irish grassland soil
Peyton, Dara P.; Healy, Mark G.; Fleming, Ger; Grant, Jim; Wall, David P.; Morrison, Liam; Cormican, Martin; Fenton, Owen (Elsevier, 2015)Treated municipal sewage sludge ( biosolids ) and dairy cattle slurry (DCS) may be applied to agricultural land as an organic fertiliser. This study investigates losses of nutrients in runoff water (nitrogen (N) and ... -
A quantitative microbial risk assessment model for total coliforms and e. coli in surface runoff following application of biosolids to grassland
Clarke, Rachel; Peyton, Dara; Healy, Mark G.; Fenton, Owen; Cummins, Enda (Elsevier, 2017-03-06)In Ireland, the land application of biosolids is the preferred option of disposing of municipal sewage waste. Biosolids provide nutrients in the form of nitrogen, phosphorus, potassium and increases organic matter. It is ... -
Quantitative risk assessment of antimicrobials in biosolids applied on agricultural land and potential translocation into food
Clarke, Rachel; Healy, Mark G.; Fenton, Owen; Cummins, Enda (Elsevier, 2017-12-30)The use of biosolids as a fertiliser may be an indirect route for contaminants into the food chain. One of the main concerns regarding the spreading of biosolids on agricultural land is the potential uptake of contaminants ... -
A review of remediation and control systems for the treatment of agricultural wastewater in Ireland to satisfy the requirements of the Water Framework Directive
Fenton, Owen; Healy, Mark G.; Schulte, R.P.O. (RIA, 2008)In Ireland, agricultural activities have been identified as major sources of nutrient input to receiving waters and it has been estimated that these activities contribute 75.3% of the nitrogen (N) and 33.4% of the phosphorus ... -
Review: the environmental status and implications of the nitrate time lag in Europe and North America.
Vero, Sara E.; Basu, Nandita B.; Van Meter, Kimberly; Richards, Karl G.; Mellander, Per-Erik; Healy, Mark G.; Fenton, Owen (Springer Verlag, 2017-08-14)The efficacy of water quality policies aiming to reduce or prevent nitrate contamination of waterbodies may be constrained by the inherent delay or Btime lag^ of water and solute transport through unsaturated (soil) and ... -
The short-term effects of management changes on watertable position and nutrients in shallow groundwater in a harvested peatland forest
Finnegan, Joanne; Regan, John T.; Fenton, Owen; Lanigan, Gary J.; Brennan, Raymond B. (Elsevier, 2014-09-01)Management changes such as drainage, fertilisation, afforestation and harvesting (clearfelling) of forested peatlands influence watertable (WT) position and groundwater concentrations of nutrients. This study investigated ... -
Use of zeolite with alum and PAC amendments to mitigate runoff losses of P, N and suspended solids from agricultural wastes applied to land
Healy, Mark G.; Fenton, Owen; Murnane, John; Brennan, Raymond B. (ASA, CSSA, and SSSA, 2015)Diffuse pollutant losses containing phosphorus (P), nitrogen (N) and suspended solids (SS) can occur when agricultural wastes are applied to soil. This study aimed to mitigate P, N and SS losses in runoff from grassed ...