Dr Zuansi Cai's Outputs (30)

Analysis of groundwater-level response to rainfall and estimation of annual recharge in fractured hard rock aquifers, NW Ireland (2016)
Journal Article
Cai, Z., & Ofterdinger, U. (2016). Analysis of groundwater-level response to rainfall and estimation of annual recharge in fractured hard rock aquifers, NW Ireland. Journal of Hydrology, 535, 71-84. https://doi.org/10.1016/j.jhydrol.2016.01.066

Despite fractured hard rock aquifers underlying over 65% of Ireland, knowledge of key processes controlling groundwater recharge in these bedrock systems is inadequately constrained. In this study, we examined 19 groundwater-level hydrographs from tw... Read More about Analysis of groundwater-level response to rainfall and estimation of annual recharge in fractured hard rock aquifers, NW Ireland.

Numerical assessment of potential impacts of hydraulically fractured Bowland Shale on overlying aquifers (2014)
Journal Article
Cai, Z., & Ofterdinger, U. (2014). Numerical assessment of potential impacts of hydraulically fractured Bowland Shale on overlying aquifers. Water Resources Research, 50, 6236-6259. https://doi.org/10.1002/2013WR014943

Natural gas extracted from hydraulically fractured shale formations potentially has a big impact on the global energy landscape. However, there are concerns of potential environmental impacts of hydraulic fracturing of the shale formations, particula... Read More about Numerical assessment of potential impacts of hydraulically fractured Bowland Shale on overlying aquifers.

Assessing TCE Source Bioremediation by Geostatistical Analysis of a Flux Fence (2012)
Journal Article
Cai, Z., Wilson, R. D., & Lerner, D. N. (2012). Assessing TCE Source Bioremediation by Geostatistical Analysis of a Flux Fence. Groundwater, 50(6), 908-917. https://doi.org/10.1111/j.1745-6584.2012.00916.x

Mass discharge across transect planes is increasingly used as a metric for performance assessment of in situ groundwater remediation systems. Mass discharge estimates using concentrations measured in multilevel transects are often made by assuming a... Read More about Assessing TCE Source Bioremediation by Geostatistical Analysis of a Flux Fence.

Increasing Confidence in Mass Discharge Estimates Using Geostatistical Methods (2011)
Journal Article
Cai, Z., Wilson, R. D., Cardiff, M. A., & Kitanidis, P. K. (2011). Increasing Confidence in Mass Discharge Estimates Using Geostatistical Methods. Groundwater, 49(2), 197-208. https://doi.org/10.1111/j.1745-6584.2010.00709.x

Mass discharge is one metric rapidly gaining acceptance for assessing the performance of in situ groundwater remediation systems. Multilevel sampling transects provide the data necessary to make such estimates, often using the Thiessen Polygon method... Read More about Increasing Confidence in Mass Discharge Estimates Using Geostatistical Methods.

Channel flow and trichloroethylene treatment in a partly iron-filled fracture: Experimental and model results (2007)
Journal Article
Cai, Z., Merly, C., Thomson, N. R., Wilson, R. D., & Lerner, D. N. (2007). Channel flow and trichloroethylene treatment in a partly iron-filled fracture: Experimental and model results. Journal of Contaminant Hydrology, 93(1-4), 284-303. https://doi.org/10.1016/j.jconhyd.2007.04.001

Technical developments have now made it possible to emplace granular zero-valent iron (Fe0) in fractured media to create a Fe0 fracture reactive barrier (Fe0 FRB) for the treatment of contaminated groundwater. To evaluate this concept, we conducted a... Read More about Channel flow and trichloroethylene treatment in a partly iron-filled fracture: Experimental and model results.

Conceptual analysis of zero-valent iron fracture reactive barriers for remediating a trichloroethylene plume in a chalk aquifer (2007)
Journal Article
Cai, Z., Lerner, D. N., McLaren, R. G., & Wilson, R. D. (2007). Conceptual analysis of zero-valent iron fracture reactive barriers for remediating a trichloroethylene plume in a chalk aquifer. Water Resources Research, 43(3), https://doi.org/10.1029/2006wr004946

A novel concept, the Fe0 fracture reactive barrier (Fe0 FRB), is proposed to clean up chlorinated solvent pollution of groundwater in a chalk aquifer. Iron particles, suspended in a viscous biodegradable gel, can be injected into selected fractures t... Read More about Conceptual analysis of zero-valent iron fracture reactive barriers for remediating a trichloroethylene plume in a chalk aquifer.

A lumped parameter approach to model the treatment of organic contaminants by a granular iron filled fracture (2005)
Journal Article
Cai, Z., Thomson, N. R., Wilson, R. D., & Oswald, S. E. (2006). A lumped parameter approach to model the treatment of organic contaminants by a granular iron filled fracture. Advances in water resources, 29(4), 624-638. https://doi.org/10.1016/j.advwatres.2005.07.004

Zero-valent iron permeable reactive barriers (Fe0-PRBs) have been widely used in unconsolidated media to treat certain dissolved phase organic contaminants, but little attention has been given to their application in fractured porous media. In princi... Read More about A lumped parameter approach to model the treatment of organic contaminants by a granular iron filled fracture.

Leaching from solid waste incineration ashes used in cement-treated base layers for pavements (2004)
Journal Article
Cai, Z., Bager, D. H., & Christensen, T. (2004). Leaching from solid waste incineration ashes used in cement-treated base layers for pavements. Waste Management, 24(6), 603-612. https://doi.org/10.1016/j.wasman.2004.01.010

Waste incineration bottom ash and treated flue gas cleaning products mixed with 2.5% of cement (50 kg/m 3) were tested in the laboratory in terms of compressive strength and tank leaching tests over a 64-day period. Although the material displayed lo... Read More about Leaching from solid waste incineration ashes used in cement-treated base layers for pavements.

Re-use of stabilised flue gas ashes from solid waste incineration in cement-treated base layers for pavements (2003)
Journal Article
Cai, Z., Jensen, D. L., Christensen, T. H., & Bager, D. H. (2003). Re-use of stabilised flue gas ashes from solid waste incineration in cement-treated base layers for pavements. Waste Management and Research, 21(1), 42-53. https://doi.org/10.1177/0734242x0302100106

Fly ash from coal-burning power plants has been used extensively as a pozzolan and fine filler in concrete for many years. Laboratory experiments were performed investigating the effect of substituting the coal-based fly ash with chemically stabilise... Read More about Re-use of stabilised flue gas ashes from solid waste incineration in cement-treated base layers for pavements.

Evidence of Al-Cr interactions affecting Cr-leaching from waste incineration ashes (2002)
Journal Article
Cai, Z., Chen, D., Lundtorp, K., & Christensen, T. H. (2003). Evidence of Al-Cr interactions affecting Cr-leaching from waste incineration ashes. Waste Management, 23(1), 89-95. https://doi.org/10.1016/S0956-053X%2802%2900113-7

Leaching tests on flue gas ashes from waste incineration showed low leaching of Cr from ashes that under moist anaerobic conditions also produced hydrogen gas. In some cases, also the redox levels (aerobic/anaerobic conditions) during the leaching te... Read More about Evidence of Al-Cr interactions affecting Cr-leaching from waste incineration ashes.