ORCID Profile
0000-0002-9219-2120
Current Organisation
Griffith University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Environmental Engineering | Digital and Interaction Design | Environmental Science and Management | Environmental Technologies | Environmental Management | Aboriginal and Torres Strait Islander Information and Knowledge Systems | Fertilisers and Agrochemicals (Application etc.)
ANZSRC Socio-Economic Objective (SEO)
Organic Fertilisers | Aboriginal and Torres Strait Islander Development and Welfare | Residential Energy Conservation and Efficiency | Management of Water Consumption by Information and Communication Services | Expanding Knowledge in Technology |
Related Links
Publications
Assembly of a zoned volcanic magma chamber from multiple magma batches: The Cerberean Cauldron, Marysville Igneous Complex, Australia
Publisher: Elsevier BV
Date: 12-2012
Efffluent flux prediction in variably saturated soil zones within a septic tank-soil absorption trench
Publisher: CSIRO Publishing
Date: 2006
DOI: 10.1071/SR06007
Abstract: The treatment and hydraulic mechanisms in a septic tank–soil absorption system (SAS) are highly influenced by the clogging layer or biomat zone which develops on bottom and lower sidewall surfaces within the trench. Flow rates through the biomat and sub-biomat zones are governed largely by the biomat hydraulic properties (resistance and hydraulic conductivity) and the unsaturated hydraulic conductivity of the underlying soil. One- and 2-dimensional models were used to investigate the relative importance of sidewall and vertical flow rates and pathways in SAS. Results of 1-dimensional modelling show that several orders of magnitude variation in saturated hydraulic conductivity (Ks) reduce to a 1 order of magnitude variation in long-term flow rates. To increase the reliability of prediction of septic trench hydrology, HYDRUS-2D was used to model 2-dimensional flow. In the permeable soils, under high trench loading, effluent preferentially flowed in the upper region of the trench where no resistant biomat was present (the exfiltration zone). By comparison, flow was more evenly partitioned between the biomat zones and the exfiltration zones of the low permeability soil. An increase in effluent infiltration corresponded with a greater availability of exfiltration zone, rather than a lower resistance of biomat. Results of modelling simulations demonstrated the important role that a permeable A horizon may play in limiting surface surcharge of effluent under high trench hydraulic loading.
Classifying Household Water Use Events into Indoor and Outdoor Use: Improving the Benefits of Basic Smart Meter Data Sets
Publisher: American Society of Civil Engineers (ASCE)
Date: 12-2021
Two-Stage Cooperative T Cell Receptor-Peptide Major Histocompatibility Complex-CD8 Trimolecular Interactions Amplify Antigen Discrimination
Publisher: Elsevier BV
Date: 2011
Process, performance, and pollution potential: A review of septic tank-soil absorption systems
Publisher: CSIRO Publishing
Date: 2005
DOI: 10.1071/SR05018
Abstract: On-site wastewater treatment and dispersal systems (OWTS) are used in non-sewered populated areas in Australia to treat and dispose of household wastewater. The most common OWTS in Australia is the septic tank–soil absorption system (SAS)—which relies on the soil to treat and disperse effluent. The mechanisms governing purification and hydraulic performance of a SAS are complex and have been shown to be highly influenced by the biological zone (biomat) which develops on the soil surface within the trench or bed. Studies suggest that removal mechanisms in the biomat zone, primarily adsorption and filtering, are important processes in the overall purification abilities of a SAS. There is growing concern that poorly functioning OWTS are impacting upon the environment, although to date, only a few investigations have been able to demonstrate pollution of waterways by on-site systems. In this paper we review some key hydrological and biogeochemical mechanisms in SAS, and the processes leading to hydraulic failure. The nutrient and pathogen removal efficiencies in soil absorption systems are also reviewed, and a critical discussion of the evidence of failure and environmental and public health impacts arising from SAS operation is presented. Future research areas identified from the review include the interactions between hydraulic and treatment mechanisms, and the biomat and sub-biomat zone gas composition and its role in effluent treatment.
Toward the digital water age: Survey and case studies of Australian water utility smart-metering programs
Publisher: Elsevier BV
Date: 03-2015
Community-based water demand management: socio-technical strategies for improving water security in Australian Indigenous communities
Publisher: IOP Publishing
Date: 10-05-2023
Abstract: Sustainable water management in remote Australian communities is a delicate balance between sufficient and acceptable supply options and appropriate and effective demand approaches. This paper focus on the evaluation of community-based water demand management strategies piloted in four remote Aboriginal and Torres Strait Island communities in Australia. Findings of the pilot demonstrate that from a systems perspective, community-based demand management centred around education and encouragement of residents to conserve and use water efficiently, provide greater opportunities for long-term sustainable water management outcomes that support building of social capital. To ensure truly transformative management outcomes, a toolbox of socio-technological strategies should be used including, where possible, smart metering of water consumption and use of water-efficient devices. A key element of this approach to demand management calls for a shift away from business-as-usual policy towards a flexible learning approach that involves genuine collaboration between water managers and Indigenous communities.
Energy intensity of rainwater harvesting systems: A review
Publisher: Elsevier BV
Date: 06-2014
Developing a best-practice model for water and wastewater services in informal urban settlements in Tanzania
Publisher: Informa UK Limited
Date: 19-04-2022
What does rebounding water use look like? An examination of post-drought and post-flood water end-use demand in Queensland, Australia
Publisher: IWA Publishing
Date: 14-02-2014
DOI: 10.2166/WS.2014.008
Abstract: Rebounding water use behaviour has been observed in communities that have experienced plentiful water supply following a very dry period. However, the drivers of such rebounds in water consumption are varied and not well understood. Knowledge of such drivers can greatly assist managers towards proactive demand management, modelling and timely promotion of water efficient behaviours. Total and end-use residential water consumption has been tracked in South East Queensland, Australia for a s le of up to 252 homes in post-drought conditions (dam supplies growing but water restrictions continued, changed water use behaviours still ‘fresh’), and during and post-flooding conditions (eased restrictions, 100% dam capacity). Data on end-use water consumption trends using nearly 3 years of residential water end-use data have revealed several interesting patterns of consumption such as a delayed return to pre-drought use, the influence of climate and end-use specific rebounds (e.g. indoor versus outdoor use). The end-use data have helped to identify the drivers of rebounding water consumption which appear to include environmental cues (rainfall, temperature), social cues (e.g. government encouraging consumers to turn on tap) and a gradual general reduction in conservative water use behaviours. The paper concludes with a discussion of how this knowledge can be used to inform long-term demand management policy, particularly in variable climates.
Developing a Preliminary Causal Loop Diagram for Understanding the Wicked Complexity of the COVID-19 Pandemic
Publisher: MDPI AG
Date: 18-06-2020
Abstract: COVID-19 is a wicked problem for policy makers internationally as the complexity of the pandemic transcends health, environment, social and economic boundaries. Many countries are focusing on two key responses, namely virus containment and financial measures, but fail to recognise other aspects. The systems approach, however, enables policy makers to design the most effective strategies and reduce the unintended consequences. To achieve fundamental change, it is imperative to firstly identify the “right” interventions (leverage points) and implement additional measures to reduce negative consequences. To do so, a preliminary causal loop diagram of the COVID-19 pandemic was designed to explore its influence on socio-economic systems. In order to transcend the “wait and see” approach, and create an adaptive and resilient system, governments need to consider “deep” leverage points that can be realistically maintained over the long-term and cause a fundamental change, rather than focusing on “shallow” leverage points that are relatively easy to implement but do not result in significant systemic change.
Evaluating the energy and carbon reductions resulting from resource-efficient household stock
Publisher: Elsevier BV
Date: 12-2012
Safe water and sanitation in remote Indigenous communities in Australia: conditions towards sustainable outcomes
Publisher: Informa UK Limited
Date: 02-06-2022
A Desktop Analysis of Potable Water Savings from Internally Plumbed Rainwater Tanks in South-East Queensland, Australia
Publisher: Springer Science and Business Media LLC
Date: 02-02-2012
A novel mixed method smart metering approach to reconciling differences between perceived and actual residential end use water consumption
Publisher: Elsevier BV
Date: 12-2013
Demand-side management for supply-side efficiency: Modeling tailored strategies for reducing peak residential water demand
Publisher: Elsevier BV
Date: 04-2016
Novel bottom-up urban water demand forecasting model: Revealing the determinants, drivers and predictors of residential indoor end-use consumption
Publisher: Elsevier BV
Date: 02-2015
Long-term flow rates and biomat zone hydrology in soil columns receiving septic tank effluent
Publisher: Elsevier BV
Date: 07-2006
DOI: 10.1016/J.WATRES.2006.04.018
Abstract: Soil absorption systems (SAS) are used commonly to treat and disperse septic tank effluent (STE). SAS can hydraulically fail as a result of the low permeable biomat zone that develops on the infiltrative surface. The objectives of this experiment were to compare the hydraulic properties of biomats grown in soils of different textures, to investigate the long-term acceptance rates (LTAR) from prolonged application of STE, and to assess if soils were of major importance in determining LTAR. The STE was applied to repacked sand, Oxisol and Vertisol soil columns over a period of 16 months, at equivalent hydraulic loading rates of 50, 35 and 8L/m(2)/d, respectively. Infiltration rates, soil matric potentials, and biomat hydraulic properties were measured either directly from the soil columns or calculated using established soil physics theory. Biomats 1 to 2 cm thick developed in all soils columns with hydraulic resistances of 27 to 39 d. These biomats reduced a 4 order of magnitude variation in saturated hydraulic conductivity (K(s)) between the soils to a one order of magnitude variation in LTAR. A relationship between biomat resistance and organic loading rate was observed in all soils. Saturated hydraulic conductivity influenced the rate and extent of biomat development. However, once the biomat was established, the LTAR was governed by the resistance of the biomat and the sub-biomat soil unsaturated flow regime induced by the biomat. Results show that whilst initial soil K(s) is likely to be important in the establishment of the biomat zone in a trench, LTAR is determined by the biomat resistance and the unsaturated soil hydraulic conductivity, not the K(s) of a soil. The results call into question the commonly used approach of basing the LTAR, and ultimately trench length in SAS, on the initial K(s) of soils.
Air source heat pump water heaters in residential buildings in Australia: Identification of key performance parameters
Publisher: Elsevier BV
Date: 03-2015
Influence of hydraulic loading and effluent flux on surface surcharging in soil absorption systems
Publisher: American Society of Civil Engineers (ASCE)
Date: 08-2008
Residential water heaters in Brisbane, Australia: Thinking beyond technology selection to enhance energy efficiency and level of service
Publisher: Elsevier BV
Date: 10-2014
Challenges and opportunities with social inclusion and community‐based water management in Solomon Islands
Publisher: Wiley
Date: 18-02-2022
DOI: 10.1111/DPR.12597
Abstract: Rural water services are poor in Pacific Island countries (PICs) ineffective water management (WM) is one of the key reasons. Greater social inclusion in WM groups is a key goal of Sustainable Development Goal (SDG) 6, but there is a lack of data on the make‐up of WM groups and what appropriate and effective inclusivity in WM looks like in the region. This article contributes to filling these gaps by examining national community WM policy and the attributes and activities of rural WM groups, in practice, in villages across Solomon Islands. The purpose is to influence government policy and guidance relating to the structure and functionality of rural WM groups. Qualitative and quantitative data were gathered from eight rural communities in Solomon Islands between 2018 and 2020 by a team of international and local Solomon Islander researchers. Detailed data from six formalized WM groups along with an analysis of national policy and rural WM guidelines are used to identify strengths and weaknesses in current WM policy and approaches. WM group inclusivity has improved with regard to women, but they still often remain excluded from decision‐making. Young people are essential to the ongoing operation of water systems yet were rarely formal members of water committees. Intra‐village levels of social cohesion were stronger than village‐wide levels. Most water committees had collapsed in the past, lacked institutional sustainability, and failed community expectations. Factors informing this included the high mean age of committee members, multiple obligations of executives, and often poor intra‐village social and geographical representation. Villages are not homogenous communities, but include many smaller social units—tribes, extended families, different faith groups—that tend to have stronger social cohesion than “village‐wide” groups or committees. Moreover, many of these groupings are often socio‐spatially demarcated in formalized “zones/areas” of a village. This needs to be reflected in WM group membership and national policy guidelines. At these levels, social cohesion, collective action, and agency are greater than at the village‐wide level, offering opportunities for more inclusive and effective WM outcomes.
Quantifying the influence of residential water appliance efficiency on average day diurnal demand patterns at an end use level: A precursor to optimised water service infrastructure planning
Publisher: Elsevier BV
Date: 05-2012
Identifying residential water end uses underpinning peak day and peak hour demand
Publisher: American Society of Civil Engineers (ASCE)
Date: 07-2014
Smart meters for enhanced water supply network modelling and infrastructure planning
Publisher: Elsevier BV
Date: 09-2014
Revealing the superpowers of smart meters for water-energy demand management and behaviour change
Publisher: Wiley
Date: 12-12-2019
ANN-based residential water end-use demand forecasting model
Publisher: Elsevier BV
Date: 03-2013
Understanding resource consumption and sustainability in the built environment
Publisher: IOP Publishing
Date: 25-07-2023
Abstract: The built environment and the communities that contribute to its infrastructure, services, and systems are important aspects of human life. As urbanization increases, time spent indoors also increases, with urban residents spending most of their time indoors. This indoor lifestyle concentrates the effects of water, energy, and food consumption in the built environment, with local, regional, and global implications for interconnected resources and their supply chains. As such, resource consumption in the built environment has sustainability implications, especially with increasing populations and living standards. This focus issue, ‘Resource Consumption and Sustainability in the Built Environment’, examines infrastructure and sustainability from many perspectives. The articles investigate water, energy, and/or food consumption across various scales, ranging from a single household to nationwide supply chains to global climate models. Each paper in this issue considers essential elements of context, since water, energy, and food have local and global sustainability considerations, along with multi-sector dependencies within urban metabolism. Digital technologies, data, and modeling approaches are opening new opportunities for better monitoring and understanding of the built environment. In an uncertain future, understanding resource consumption in the built environment and its implications for the environment and society is a critical aspect of overall human health and well-being. In-depth knowledge of the dynamics shaping the built environment is paramount to supporting adaptive infrastructure planning and management, including supply and demand interventions to help cities and communities become climate neutral while increasing equity in access and affordability of resources and services.
Smart meter enabled water end-use demand data: enhanced infrastructure planning of contemporary supply networks platform for the urban water supply networks
Publisher: Elsevier BV
Date: 2015
Related Organisations
Related Funding Activities
Linkage Projects - Grant ID: LP210301176
Start Date: 09-2023
End Date: 09-2026
Amount: $419,378.00
Funder: Australian Research Council
View Funded ActivityIndustrial Transformation Research Hubs - Grant ID: IH210100001
Start Date: 07-2022
End Date: 07-2026
Amount: $2,062,428.00
Funder: Australian Research Council
View Funded Activity