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Browsing Centre for Water Resources Research by Title

Browsing Centre for Water Resources Research by Title

Now showing items 25-44 of 92

Effectiveness of a drinking-water treatment sludge in removing different phosphorus species from aqueous solution

Razali, Melanie ; Zhao, Y.Q. ; Bruen, Michael (Elsevier, 2007-07)

Drinking-water treatment sludge (DWTS) produced at water treatment plants is an inescapable by-product and has long been treated as a waste for landfill. In this study, a series of batch adsorption tests were conducted ...
Enhanced removal of organic matter and ammoniacal-nitrogen in a column experiment of tidal flow constructed wetland system

Sun, Guangzhi ; Zhao, Y.Q. ; Allen, Stephen (Elsevier, 2005-01-26)

This study investigated the efficiency of a four-stage tidal flow constructed wetland system for the removal of organic matter and ammoniacal-nitrogen from diluted piggery wastewater. The results demonstrated that the ...
Equilibrium and kinetic analysis of phosphorus adsorption from aqueous solution using waste alum sludge

Babatunde, A.O. ; Zhao, Y.Q. (Elsevier, 2010-12-15)

Excess phosphorus (P) in wastewaters promotes eutrophication in receiving waterways. A cost-effective method such as use of novel low-cost adsorbents for its adsorptive removal would significantly reduce such impacts. Using ...
Estimating the parameters of the extreme value type 1 distribution for low flow series in Ireland

Nasr, Ahmed Elssidig ; Bruen, Michael (Civil-Comp Press, 2009-09)

In this study two different models have been developed and tested with data from 55 hydrometric stations in the Shannon River Basin in Ireland for estimating the location and the scale parameters of the EV1 distribution ...
Eutrophication from agricultural sources

Carton, O.T. ; Tunney, H. ; Daly, Karen ; Ryan, Michael ; Kurz, I. ; Doody, Donnacha ; Bourke, David ; Kiely, Gerard ; Morgan, G. (Gerard) ; Moles, Richard ; Jordan, P. ; Ryan, D. ; Irvine, Kenneth ; Jennings, Eleanor ; Magette, W. L. ; Bruen, Michael ; Mulqueen, John ; Rodgers, M. (Michael) ; Johnston, Paul ; Bartley, Pamela (Environmental Protection Agency, 2008)
Eutrophication from agricultural sources : a comparison of SWAT, HSPF and SHETRAN/GOPC phosphorus models for three Irish catchments : executive summary

Nasr, Ahmed Elssidig ; Bruen, Michael (University College Dublin. Centre for Water Resources Research, 2006-09)
Eutrophication from agricultural sources : a comparison of SWAT, HSPF and SHETRAN/GOPC phosphorus models for three Irish catchments - Final Report

Nasr, Ahmed Elssidig ; Bruen, Michael (University College Dublin. Centre for Water Resources Research, 2006-09)

Phosphorous has been implicated as the primary cause of the deterioration of surface water quality in Ireland. Extensive water quality surveys revealed that diffuse sources (runoff and subsurface flows) from agricultural ...
Eutrophication from agricultural sources : field- and catchment-scale risk assessment

Magette, W. L. ; Hallissey, Ronan ; Hughes, Kristen ; Cosgrove, Emer (Environmental Protection Agency, 2007)
Evaluating the photo-catalytic application of Fenton’s reagent augmented with TiO2 and ZnO for the mineralization of an oil-water emulsion

Tony, Maha A. ; Zhao, Y.Q. ; Purcell, Patrick J. ; El-Sherbiny, M.F. (Taylor & Francis, 2009-02)

In the present work, homogenous (photo-Fenton) and heterogeneous photo-assisted systems (Fenton/TiO2/UV, Fenton/ZnO/UV and Fenton/TiO2/UV/Air) were investigated for the treatment of a diesel-oil wastewater emulsion. The ...
Evaluation of the EV1 distribution for different low flow series in the Shannon river basin in Ireland

Nasr, Ahmed Elssidig ; Bruen, Michael (European Geosciences Union, 2009-04)

The Shannon river basin is the largest in Ireland and it encompasses a number of urban and rural towns. The water of this river provides the demand for drinking, agriculture, ecology, industry, etc. Therefore it is essential ...
An evaluation of urban flood estimation methodologies in Ireland

O'Sullivan, J. J. ; Gebre, F. ; Bruen, Michael ; Purcell, Patrick J. (Wiley and Chartered Institution of Water and Environmental Management (CIWEM), 2010-03)

This paper summarises the findings of a study to evaluate the use in Ireland of the different flood estimation methodologies that can be applied to urban or urbanising catchments. The study, undertaken as part of the Office ...
Exploitation of Fenton and Fenton-like reagents as alternative conditioners for alum sludge conditioning

Tony, Maha A. ; Zhao, Y.Q. ; Tayeb, Aghareed M. (Elsevier, 2009-01)

The use of Fenton’s reagent (Fe2+/H2O2) and Fenton-like reagents containing transition metals of Cu(II), Zn(II), Co(II) and Mn(II) for an alum sludge conditioning to improve its dewaterability was investigated in this ...
Extending the use of dewatered alum sludge as a P-trapping material in effluent purification : study on two separate water treatment sludges

Zhao, Y.Q. ; Yang, Y. (Taylor & Francis, 2010-07)

The generation of alum sludge from drinking water purification process remains inevitable when aluminium sulphate is used as primary coagulant for raw water coagulation. Sustainable managing such the sludge becomes an ...
Fluoride removal from drinking water by adsorption using bone char as a biosorbent

Ma, W. ; Ya, F. ; Wang, R. ; Zhao, Y.Q. (Inderscience, 2008-04)

As a biomass material, bone char was investigated for the feasibility to be used as a cost-effective biosorbent for fluoride removal from drinking water in groundwater environment. Based on the batch tests with natural ...
Forms, patterns and extractability of phosphorus retained in alum sludge used as substrate in laboratory-scale constructed wetland systems

Babatunde, A.O. ; Zhao, Y.Q. (Elsevier, 2009-10-01)

This study examined the form, pattern and extractability of phosphorus (P) retained in alum sludge (an aluminium-containing drinking water treatment residual in dewatered cake form), which was used as substrate in laboratory ...
From "fills" to filter : insights into the reuse of dewatered alum sludge as a filter media in a constructed wetland

Babatunde, A.O. ; Zhao, Y.Q. ; Yang, Y. ; Kearney, P. (DesTech Publications, 2007-07)

Dewatered alum sludge, a by-product of drinking water treatment plants, hitherto consigned to landfills was used to develop a novel bio-filter in form of a constructed wetland. Performance results have demonstrated the ...
Fuzzy synthetic evaluation of Weihe water quality

Geng, Yani ; Zhang, Jun ; Zhou, Qi ; Xu, Chundi ; Zhao, Y.Q. (Editura EcoZone, 2011-10)

Based on the fuzzy logic principle, a modified Fuzzy Synthetic Evaluation (FSE) is proposed to assess water quality status of Weihe River (Baoji, China). The potential application of the FSE has been tested in a case study. ...
A hierarchy for land application of organic wastes : influence of urban stakeholders

Taffese Tanto, Mebrate ; Magette, W. L. (2010-09)
High rate nitrogen removal in an alum sludge-based intermittent aeration constructed wetland

Hu, Y.S. ; Zhao, Y.Q. ; Zhao, X.H. ; Kumar, J.L.G. (ACS, 2012-03-16)

A new development on treatment wetland technology for the purpose of achieving high rate nitrogen removal from high strength wastewater has been made in this study. The laboratory scale alum sludge-based intermittent ...
Hydrology and the Water Framework Directive in Ireland

Bruen, Michael (Royal Irish Academy, 2009)

The Water Framework Directive has been the catalyst for a considerable amount of data collection, analysis and research covering a wide range of physical and biological characteristics and involving a wide range of scientific, ...