scholarly journals Evaluating Treatment Requirements for Recycled Water to Manage Well Clogging during Aquifer Storage and Recovery: A Case Study in the Werribee Formation, Australia

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2575
Author(s):  
Joanne L. Vanderzalm ◽  
Declan W. Page ◽  
Karen E. Barry ◽  
Dennis Gonzalez
Keyword(s):  
Hydraulic Conductivity ◽  
Environmental Benefits ◽  
Aquifer Storage And Recovery ◽  
Aquifer Recharge ◽  
Operational Parameters ◽  
Recycled Water ◽  
Aquifer Storage ◽  
Class A ◽  
Well Clogging ◽  
Cartridge Filter

Managed aquifer recharge (MAR) is the intentional recharge of water to suitable aquifers for subsequent beneficial use or to achieve environmental benefits. Well injection techniques for MAR, such as Aquifer Storage and Recovery (ASR), rely on implementing appropriate design and defining the operational parameters to minimise well clogging and maintain sustainable rates of recharge over the long term. The purpose of this study was to develop water quality targets and pre-treatment requirements for recycled water to allow sustained recharge and recovery in a medium-coarse siliceous aquifer. The recharge water is a blend of 40% Class A recycled water and 60% reverse osmosis (RO)-treated Class A recycled water. Four source waters for MAR were evaluated: (1) this blend with no further treatment, and this blend with additional treatment using: (2) a 20 µm sediment cartridge filter, (3) a 5 µm sediment cartridge filter, or (4) a 5 µm granular activated carbon (GAC) cartridge filter. All four treatment options were also further disinfected with chlorine. The four blended and treated recycled waters were used in laboratory columns packed with aquifer material under saturated conditions at constant temperature (20.7 °C) with light excluded for up to 42 days. Substantial differences in the changes in hydraulic conductivity of the columns were observed for the different treatments within 14 days of the experiment, despite low turbidity (<2 NTU) of the blend waters. After 14 days, the GAC-treated water had a 7% decline in hydraulic conductivity, which was very different from the other three blend waters, which had declines of 39–52%. Based on these results and consistent with previous studies, a target biodegradable dissolved organic carbon (BDOC) level of <0.2 mg/L was recommended to ensure a biologically stable source of water to reduce clogging during recharge.

scholarly journals Potential for Aquifer Storage and Recovery (ASR) in South Bihar, India

2021 ◽  
Vol 13 (6) ◽  
pp. 3502
Author(s):  
Somnath Bandyopadhyay ◽  
Aviram Sharma ◽  
Satiprasad Sahoo ◽  
Kishore Dhavala ◽  
Prabhakar Sharma
Keyword(s):  
Pilot Study ◽  
Environmental Sustainability ◽  
Hard Rock ◽  
Climatic Conditions ◽  
Aquifer Storage And Recovery ◽  
Aquifer Recharge ◽  
Aquifer Storage ◽  
Cropping Season ◽  
Selection Of ◽  
Surface Technique

Among the several options of managed aquifer recharge (MAR) techniques, the aquifer storage and recovery (ASR) is a well-known sub-surface technique to replenish depleted aquifers, which is contingent upon the selection of appropriate sites. This paper explores the potential of ASR for groundwater recharge in the hydrological, hydrogeological, social, and economic context of South Bihar in India. Based on the water samples from more than 137 wells and socio-economic surveys, ASR installations were piloted through seven selected entrepreneurial farmers in two villages of South Bihar. The feasibility of ASR in both hard rock and deep alluvial aquifers was demonstrated for the prominent aquifer types in the marginal alluvial plains of South Bihar and elsewhere. It was postulated through this pilot study that a successful spread of ASR in South Bihar can augment usable water resources for agriculture during the winter cropping season. More importantly, ASR can adapt to local circumstances and challenges under changing climatic conditions. The flexible and participatory approach in this pilot study also allowed the farmers to creatively engage with the design and governance aspects of the recharge pit. The entrepreneurial farmers-led model builds local accountability, creates avenues for private investments, and opens up the space for continued innovation in technology and management, while also committing to resource distributive justice and environmental sustainability.

scholarly journals Meeting Melbourne's future demand for water using aquifer storage and recovery

2017 ◽  
Vol 12 (4) ◽  
pp. 909-916 ◽  
Author(s):  
M. Hudson ◽  
C. Arabatzoudis
Keyword(s):  
Water Cycle ◽  
Cost Effective ◽  
Assessment Process ◽  
Aquifer Storage And Recovery ◽  
Recycled Water ◽  
Aquifer Storage ◽  
Sand Aquifer ◽  
Multi Stage ◽  
Investigation Process ◽  
Future Growth

Abstract Melbourne is one of the fastest growing cities in Australia. City West Water (CWW) has developed an Integrated Water Cycle Management (IWCM) Strategy which includes the development of aquifer storage and recovery (ASR) schemes to store recycled water and storm water to assist with meeting future growth, where these schemes can be demonstrated to be viable and cost effective. The investigation and delivery of ASR projects by CWW is being undertaken in accordance with Australian guidelines, which set out a staged process for developing a scheme involving the use of recycled water. Detailed investigations into the Tertiary sand aquifer, including drilling, test pumping, injection testing, and groundwater and hydrochemical modelling, were used to inform the assessment process. These investigations have confirmed the viability of ASR at the lead site (West Werribee) following a risk-based multi-stage approach with increasing levels of assessment and financial commitment. An ASR scheme has now been constructed at West Werribee with injection trials proposed at a second site. This paper describes the staged investigation process, the key outcomes to date of CWW's investigations, the opportunities that ASR could enable, and the challenges of implementing ASR at CWW.

scholarly journals Biotin- and Glycoprotein-Coated Microspheres as Surrogates for Studying Filtration Removal of Cryptosporidium parvum in a Granular Limestone Aquifer Medium

2015 ◽  
Vol 81 (13) ◽  
pp. 4277-4283 ◽  
Author(s):  
M. E. Stevenson ◽  
A. P. Blaschke ◽  
S. Toze ◽  
J. P. S. Sidhu ◽  
W. Ahmed ◽  
...  
Keyword(s):  
Cryptosporidium Parvum ◽  
Health Concern ◽  
Core Material ◽  
Single Type ◽  
Particle Interactions ◽  
Aquifer Recharge ◽  
Recycled Water ◽  
Total Removal ◽  
Content Type ◽  
Aquifer Storage

ABSTRACTMembers of the genusCryptosporidiumare waterborne protozoa of great health concern. Many studies have attempted to find appropriate surrogates for assessingCryptosporidiumfiltration removal in porous media. In this study, we evaluated the filtration ofCryptosporidium parvumin granular limestone medium by the use of biotin- and glycoprotein-coated carboxylated polystyrene microspheres (CPMs) as surrogates. Column experiments were carried out with core material taken from a managed aquifer recharge site in Adelaide, Australia. For the experiments with injection of a single type of particle, we observed the total removal of the oocysts and glycoprotein-coated CPMs, a 4.6- to 6.3-log10reduction of biotin-coated CPMs, and a 2.6-log10reduction of unmodified CPMs. When two different types of particles were simultaneously injected, glycoprotein-coated CPMs showed a 5.3-log10reduction, while the uncoated CPMs displayed a 3.7-log10reduction, probably due to particle-particle interactions. Our results confirm that glycoprotein-coated CPMs are the most accurate surrogates forC. parvum; biotin-coated CPMs are slightly more conservative, while unmodified CPMs are markedly overly conservative for predictingC. parvumremoval in granular limestone medium. The total removal ofC. parvumobserved in our study suggests that granular limestone medium is very effective for the filtration removal ofC. parvumand could potentially be used for the pretreatment of drinking water and aquifer storage recovery of recycled water.

scholarly journals Clogging Issues with Aquifer Storage and Recovery of Reclaimed Water in the Brackish Werribee Aquifer, Melbourne, Australia

Water ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1807 ◽  
Author(s):  
Pieter J. Stuyfzand ◽  
Javier Osma
Keyword(s):  
Suspended Solids ◽  
Water Cycle ◽  
Membrane Filter ◽  
Small Diameter ◽  
Total Suspended Solids ◽  
Injection Rate ◽  
Recycled Water ◽  
Bag Filter ◽  
Aquifer Storage ◽  
Well Clogging

As part of an integrated water-cycle management strategy, City West Water (CWW) is conducting research to develop an aquifer storage recovery (ASR) scheme utilizing recycled water. In this contribution, we address the risk of well clogging based on two ASR bore pilots, each with intensive monitoring. Well clogging is a critical aspect of the strategy due to a projected high injection rate, a high clogging potential of recycled water, and a small diameter injection borehole. Microscopic and geochemical analysis of suspended solids in the injectant and backflushed water, demonstrate a significant contribution of diatoms, algae and colloidal or precipitating Fe(OH)3, Al(OH)3 and MnO2. CWW is, therefore, testing additional prefiltration that includes a 20 μm spin Klin disc and 1–5 μm bag filter operating in series. In this paper, we present optimized methods to (i) detect the contribution of the injectant and aquifer particles to total suspended solids in backflushed water by hydrogeochemical analysis; and (ii) predict and reduce the risk of physical and biological clogging, by combination of the membrane filter index (MFI) method of Buik and Willemsen, a modification of the total suspended solids method of Bichara and an amendment of the exponential bacterial growth method of Huisman and Olsthoorn.

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

Aspects of Water Quality Improvement during Aquifer Storage and Recovery

2001 ◽  
Author(s):  
Simon Toze ◽  
Peter Dillon ◽  
Paul Pavelic ◽  
Brenton Nicholson ◽  
Michel Gibert
Keyword(s):  
Water Quality ◽  
Quality Improvement ◽  
Aquifer Storage And Recovery ◽  
Water Quality Improvement ◽  
Aquifer Storage
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