Spatial and temporal changes in sulphate-reducing groundwater bacterial community structure in response to Managed Aquifer Recharge

2008 ◽  
Vol 57 (5) ◽  
pp. 789-795 ◽  
Author(s):  
D. A. Reed ◽  
S. Toze ◽  
B. Chang
Keyword(s):  
Population Dynamics ◽  
Community Structure ◽  
Managed Aquifer Recharge ◽  
Temporal Changes ◽  
Culturable Bacteria ◽  
Aquifer Recharge ◽  
Bacterial Populations ◽  
Aquifer Storage ◽  
Treated Effluent ◽  
Spatial And Temporal Changes

The population dynamics of bacterial able to be cultured under sulphate reducing condition was studied in conjunction with changes in aquifer geochemistry using multivariate statistics for two contrasting Managed Aquifer Recharge (MAR) techniques at two different geographical locations (Perth, Western Australia and Adelaide, South Australia). Principal component analysis (PCA) was used to investigate spatial and temporal changes in the overall chemical signature of the aquifers using an array of chemical analytes which demonstrated a migrating geochemical plume. Denaturing Gradient Gel Electrophoresis (DGGE) using DNA from sulphate-reducing bacteria cultures was used to detect spatial and temporal changes in population dynamics. Bacterial and geochemical evidence suggested that groundwater at greatest distance from the nutrient source was least affected by treated effluent recharge. The results suggested that bacterial populations that were able to be cultured in sulphate reducing media responded to the migrating chemical gradient and to the changes in aquifer geochemistry. Most noticeably, sulphate-reducing bacterial populations associated with the infiltration galleries were stable in community structure over time. Additionally, the biodiversity of these culturable bacteria was restored when aquifer geochemistry returned to ambient conditions during the recovery phase at the Adelaide Aquifer Storage and Recovery site.

scholarly journals Microbial population changes during managed aquifer recharge (MAR)

2009 ◽  
Vol 30 (1) ◽  
pp. 33
Author(s):  
Simon Toze ◽  
Deborah Reed
Keyword(s):  
Water Quality ◽  
Population Dynamics ◽  
Population Structure ◽  
Microbial Population ◽  
Managed Aquifer Recharge ◽  
Quality Changes ◽  
Aquifer Recharge ◽  
Population Changes ◽  
Recycled Water ◽  
Microbial Population Dynamics

Managed aquifer recharge (MAR) is a technique that can be used to capture and store water in aquifers under managed conditions for later recovery and use for specific purposes. There is a need to predict water quality changes during MAR, particularly when recycled water is used as the recharged water. An understanding of the interaction between the geochemistry of the aquifer and the microbial population dynamics in the groundwater is important for understanding any water quality changes. A study was undertaken to monitor the changes in the microbial population and link this to changes in the geochemistry. The results obtained showed that the recharge of recycled water to aquifers causes a change in microbial population structure which has direct links to corresponding changes in geochemistry.

Process Based Integrated Models for Managed Aquifer Recharge and Aquifer Storage Treatment and Recovery

2018 ◽  
Vol 33 (1) ◽  
pp. 387-400
Author(s):  
Suman Gurjar ◽  
Narayan C. Ghosh ◽  
Sumant Kumar ◽  
Anupma Sharma ◽  
Surjeet Singh
Keyword(s):  
Managed Aquifer Recharge ◽  
Integrated Models ◽  
Aquifer Recharge ◽  
Aquifer Storage ◽  
Storage Treatment

scholarly journals Managed Aquifer Recharge as a Strategic Storage and Urban Water Management Tool in Darwin, Northern Territory, Australia

Water ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1869 ◽  
Author(s):  
Anthony Knapton ◽  
Declan Page ◽  
Joanne Vanderzalm ◽  
Dennis Gonzalez ◽  
Karen Barry ◽  
...  
Keyword(s):  
Storage Capacity ◽  
Managed Aquifer Recharge ◽  
Dry Season ◽  
Urban Water ◽  
Aquifer Recharge ◽  
Wet Season ◽  
Injection Wells ◽  
Groundwater Levels ◽  
Aquifer Storage ◽  
Asr System

Population growth and increased irrigation demand have caused a decline in groundwater levels that limit water supply in the Darwin rural area. Managed Aquifer Recharge (MAR) is a practical solution that can be adopted to augment stressed groundwater systems and subsequently increase the security of water supply. Aquifer storage capacity is considered to be the primary constraint to MAR where unconfined dolostone aquifers rapidly recharge during the tropical, wet season and drain again in the dry season. As a result, there is a general understanding that aquifers of this nature recharge to full capacity each wet season. However, the aquifer storage capacity and the potential for niche opportunities for MAR to alleviate declining groundwater levels has not previously been examined. This paper uses the Darwin rural area’s Proterozoic Koolpinyah Dolostone aquifer and the existing Koolpinyah Groundwater System to evaluate the prospects of MAR using both infiltration and injection techniques. Direct injection wells in an aquifer storage transfer and recovery (ASTR) scheme were favoured in this area, as injection wells occupy a smaller surface footprint than infiltration basins. This assessment suggested MAR during the early to mid-dry season could alleviate the impact of the dry season decline in groundwater levels in the Darwin rural area. The use of a larger aquifer storage and recovery (ASR) system (5,000,000 m3/year) was also assessed as a potentially viable technical solution in the northern part of the aquifer where it is understood to be confined. The ASR scheme could potentially be scaleable to augment the urban water system and provide strategic long-term storage. Consideration must also be given not only to the strategic positioning of the ASR water bank, but also to the hydrogeology of the aquifers in which the systems would be developed. Not all locations or aquifer systems can successfully support a strategic storage ASR system. Scheme-scale feasibility assessment of an ASR water bank is required. The study reported here is an early phase of a series of investigations that would typically be required to demonstrate the viability of any proposal to apply MAR to increase the reliability of conjunctive groundwater and surface water supplies in stressed water resources systems. It focusses on assessing suitable storage areas in a lateritic aquifer.

Aquifer recharge to assist in the management of produced CSG water

2012 ◽  
Vol 52 (2) ◽  
pp. 692
Author(s):  
Chris Smitt ◽  
D Ife ◽  
Joanne Vanderzalm ◽  
Peter Dillion ◽  
Shaun Davidge
Keyword(s):  
Natural Gas ◽  
Water Supply ◽  
Produced Water ◽  
Managed Aquifer Recharge ◽  
Climate Change Scenarios ◽  
Aquifer Recharge ◽  
Aquifer Storage ◽  
The Past ◽  
Water And Sediment ◽  
The Town

Santos is producing natural gas and expanding its CSG operations in the Surat and Bowen Basins, Queensland for the Gladstone Liquefied Natural Gas (GLNG) project. During the project, it has been estimated that a total of ∼340 GL of associated water could be produced from gas extraction in three CSG fields. Beneficial re-use of this water is a high priority and one option involves treating the water and re-injecting it into the water supply aquifers in the Great Artesian Basin. In the past 100 years, groundwater pressures in the Gubberamunda Sandstone aquifer, Roma’s main town water supply, have declined more than 80 m and groundwater demand for the town water supply is now more than 5 ML/day. This demand, coupled with forecast droughts in modelled climate change scenarios, provides an impetus for the beneficial re-use of treated produced water. To assess the feasibility of the aquifer for managed aquifer recharge (MAR), a risk-based framework consistent with the Australian Guidelines for Water Recycling: Managed Aquifer Recharge was applied. A series of assessment stages designed to protect human health and the environment were undertaken, each allowing a decision point for investment. To date, a MAR well-field has been developed and numerous hydraulic tests have been undertaken along with laboratory/desktop evaluation of the geochemical compatibility of the injected water with the water and sediment of the target aquifer. An injection trial in Q4 2011 will evaluate the aquifer storage potential and confirm numerical/laboratory studies related to hydraulics and water quality compatibility.

Aquifer storage and recovery, and managed aquifer recharge of reclaimed water for management of coastal aquifers

2020 ◽  
Vol 176 ◽  
pp. 67-77
Author(s):  
Ali Al-Maktoumi ◽  
Slim Zekri ◽  
Mustafa El-Rawy ◽  
Osman Abdalla ◽  
Rashid Al-Abri ◽  
...  
Keyword(s):  
Coastal Aquifers ◽  
Reclaimed Water ◽  
Managed Aquifer Recharge ◽  
Aquifer Storage And Recovery ◽  
Aquifer Recharge ◽  
Aquifer Storage
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