ORCID Profile
0000-0001-6044-2079
Current Organisation
Freeman Cook & Associates Pty Ltd
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Elsevier BV
Date: 06-2002
Publisher: Elsevier BV
Date: 11-2011
Publisher: Wiley
Date: 05-2006
Publisher: American Geophysical Union (AGU)
Date: 03-2013
DOI: 10.1002/WRCR.20125
Publisher: Wiley
Date: 1999
Publisher: Elsevier BV
Date: 06-1998
Publisher: Elsevier BV
Date: 1996
DOI: 10.1016/S0269-7491(96)00089-9
Abstract: The effect of irrigation with secondary treated municipal effluent on the accumulation of heavy metals (Cd, Cr, Cu, Ni, Pb, and Zn) was investigated by monitoring sites that had been irrigated with effluent for 4 and 17 years. At Wodonga, seven tree species were sprinkler irrigated with effluent at an average application rate of 1347 mm per annum from 1980 to 1984. The other site at Canberra was a large grass playing field (9 ha), half of which had been effluent irrigated since 1977. The non-effluent irrigated area served as the control area and provided reference 'background' concentration to assess the extent of contamination due to 17 years of effluent irrigation. Archived soil s les collected before the commencement of effluent irrigation were compared with those taken in 1984 at Wodonga to assess the extent of contamination. The concentration of labile metals was determined by extraction with EDTA because this method provides a quantitative measure of bioavailable metals. Irrigation with effluent did not increase the EDTA-extractable metals concentration at either site. Furthermore, the EDTA-extractable metal values were within the natural 'back-ground' range reported for Australian soils. These data suggest that it may take between 50 and 100 years for heavy metal levels (mainly Cd) in effluent-irrigated soil to reach the currently proposed threshold values for environmental concern. The potentially harmful effects of long-term accumulation of heavy metals on plant growth cannot be ignored and could affect the sustainability of land-based disposal of effluent.
Publisher: Elsevier BV
Date: 06-2021
Publisher: Elsevier BV
Date: 08-2006
DOI: 10.1016/J.SCITOTENV.2004.10.011
Abstract: An experimental system has been set up to investigate the reaction kinetics of framboidal pyrite oxidation in real, reactive acid sulfate soil assemblages. This study was undertaken to determine the degree to which pyrite oxidation rates are reduced by bacteriological reactions and organic matter, which both modify the net reaction mechanisms and compete for available oxygen. The results from these experimental runs not only confirm the role of organic matter in mitigating pyrite oxidation but indicate that at least initially, the acidity produced is consumed or otherwise ameliorated by parallel reactions. Tracking pH or [H+] in both a reactor and in soil does not accurately reflect reaction progress and may not correctly indicate the true level of risk. In comparison, the tracking of pyrite oxidation with the concentration of sulfate in solution is not affected by side reactions or precipitation and is therefore a better indicator for the rate of pyrite destruction.
Publisher: Elsevier BV
Date: 2016
Publisher: Elsevier BV
Date: 05-2012
Publisher: Springer Science and Business Media LLC
Date: 23-07-2010
Publisher: Elsevier BV
Date: 2000
Publisher: Elsevier BV
Date: 05-2008
Publisher: Springer Science and Business Media LLC
Date: 11-2003
Publisher: Springer Science and Business Media LLC
Date: 11-2003
Publisher: Elsevier BV
Date: 2003
Publisher: Wiley
Date: 14-12-2010
DOI: 10.1002/IRD.600
Publisher: American Geophysical Union (AGU)
Date: 2014
DOI: 10.1002/2013WR013899
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2002
Publisher: Wiley
Date: 05-2010
Publisher: Elsevier BV
Date: 2013
Publisher: American Geophysical Union (AGU)
Date: 09-2012
DOI: 10.1029/2011WR011441
Abstract: Overbank flood recharge is increasingly acknowledged as important for estimations of aquifer sustainable yield. The physics of this process in areas with shallow groundwater, however, is not well understood and typically is not included in river or groundwater models. Modeling of the overbank flood recharge process was undertaken using a fully coupled, surface‐subsurface flow model to compare the volume of infiltration through a floodplain with varying surface sediment, aquifer, and flood parameters. The infiltration volume was found to increase with the conductance of the clogging layer (represented by a thin veneer of sediments across the floodplain and river bed), flood wave height, peak duration, and aquifer transmissivity and to decrease with increasing water table gradient (positive toward the river). The influence of the flood wave and aquifer hydraulic parameters was more pronounced in systems with sand or loam clogging layers. Irregularities in floodplain elevation had a large effect on infiltration volume. A dimensionless analysis of the flood recharge process identified the factors that limited flood infiltration for each of the modeled scenarios: the clogging layer conductance, unsaturated aquifer storage, or aquifer transmissivity. A dimensionless number F * was used to predict the limiting factor in floodplain systems. An analytical equation was developed to estimate the infiltration volume for catchments where full numerical modeling is not warranted or applicable. Results from the analytical equation compared favorably with recharge modeled using a more complex numerical model.
Publisher: Elsevier BV
Date: 02-2012
Publisher: Elsevier BV
Date: 09-2006
Publisher: American Geophysical Union (AGU)
Date: 05-2011
DOI: 10.1029/2010WR010155
Publisher: CSIRO Publishing
Date: 2001
DOI: 10.1071/SR00053
Abstract: The FILTER (Filtration and Irrigated cropping for Land Treatment and Effluent Reuse) technique was developed to provide a sustainable system for treatment of saline sewage effluent on naturally occurring saline and/or sodic soils. Potentially, it can also be used to ameliorate soils that are salinised by inappropriate application of saline effluent on soils with impeded drainage. The FILTER technique involves using the nutrient-rich effluent for irrigated cropping combined with removal of excess water from the rootzone through a subsurface drainage system, during wet weather and winter periods when evapotranspiration demand is low. This paper describes the changes in salinity and sodicity in FILTER plots used for land application of saline sewage effluent on a heavy clay soil with restricted drainage, at the Griffith City Council sewage works site. The field experiments consist of trials conducted on four 1-ha plots, over an 18-month period. The pre-FILTER soil chemical characteristics and their changes with FILTER operations were measured. In addition, the volumes and the chemical properties of the effluent applied and subsurface drainage water passing through the soil were monitored. These data are used to explain the salinity and sodicity changes within the FILTER soils, and their potential effects on soil stability. Management options to minimise salinity and sodicity to provide a sustainable system are suggested.
Publisher: Springer Science and Business Media LLC
Date: 11-2003
Publisher: Elsevier BV
Date: 04-1995
Publisher: WIT Press
Date: 27-05-2008
DOI: 10.2495/SI080291
Publisher: Wiley
Date: 04-2000
Publisher: University of Adelaide Press
Date: 20-11-2017
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2002
Location: New Zealand
No related grants have been discovered for Freeman Cook.