Impact of localised dissolved iron concentrations on the biofouling of environmental wells.

DSpace/Manakin Repository

Search OPUS


Advanced Search

Browse

My Account

Show simple item record

dc.contributor.author Stuetz, RM
dc.contributor.author McLaughlan, RG
dc.date.accessioned 2009-12-21T02:30:36Z
dc.date.issued 2004
dc.identifier.citation Water science and technology : a journal of the International Association on Water Pollution Research, 2004, 49 (2), pp. 107 - 113
dc.identifier.issn 0273-1223
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/3878
dc.description.abstract Iron biofouling of wells can significantly impact the performance of a groundwater extraction system. A subsurface drainage scheme (Wakool, Australia) designed to reduce waterlogging was used to identify some of the relationships between aquifer properties and well biofouling. Piezometers drilled radially one metre from two biofouled wells showed that during normal well operation the concentration of dissolved iron (Fe2+) entering the groundwater well was highly localised around the site and with depth. CCTV survey of the biofouling on the well screens supported these findings of localised iron concentrations. Dissolved oxygen (DO) measured during pumping and under non-pumping conditions (aquifer DO) showed that oxygen was not a limiting factor, whereas stalked bacteria (Gallionella sp.) were only found in the biofouled wells. The wellhead water therefore represents only a composite of all the waters entering the well and does not indicate the possibility of localised iron concentrations in a shallow aquifer. The degree of iron biofouling within a groundwater well is therefore related directly to the presence of dissolved iron in the groundwater, as well as various oxidative processes occurring as the groundwater enters the well screen and its subsequent extraction. The distribution of iron biofilms on the well screen reflects these processes; however, the presence of well biofouling cannot always be linked to a decrease in well screen performance, but can have an impact on the overall performance of the groundwater extraction system.
dc.format Print
dc.language eng
dc.title Impact of localised dissolved iron concentrations on the biofouling of environmental wells.
dc.type Journal Article
dc.parent Water science and technology : a journal of the International Association on Water Pollution Research
dc.journal.volume 2
dc.journal.volume 49
dc.journal.number en_US
dc.publocation London en_US
dc.identifier.startpage 107 en_US
dc.identifier.endpage 113 en_US
dc.cauo.name FEIT.School of Civil and Environmental Engineering en_US
dc.conference Verified OK en_US
dc.for 0904 Chemical Engineering
dc.personcode 921007
dc.percentage 100 en_US
dc.classification.name Chemical Engineering en_US
dc.classification.type FOR-08 en_US
dc.description.keywords Gallionellaceae
dc.description.keywords Biofilms
dc.description.keywords Iron
dc.description.keywords Soil
dc.description.keywords Filtration
dc.description.keywords Water Supply
dc.description.keywords Materials Testing
dc.description.keywords Water Microbiology
dc.description.keywords Population Dynamics
dc.description.keywords Solubility
dc.description.keywords Gallbladder Diseases
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group /University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group /University of Technology Sydney/Strength - Technology in Wastewater Treatment
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10
utslib.collection.history School of Civil and Environmental Engineering (ID: 334)
utslib.collection.history Closed (ID: 3)


Files in this item

This item appears in the following Collection(s)

Show simple item record