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Different depth sand filters for laboratory treatment of synthetic wastewater with concentrations close to measured septic tank effluent

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dc.contributor.author Walsh, G.
dc.contributor.author Rodgers, Michael
dc.contributor.author Healy, Mark
dc.date.accessioned 2012-07-16T09:55:00Z
dc.date.available 2012-07-16T09:55:00Z
dc.date.issued 2011
dc.identifier.citation Rodgers, M., Walsh, G., Healy, M.G. (2011) 'Different depth sand filters for laboratory treatment of synthetic wastewater with concentrations close to measured septic tank effluent'. Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering, 46 (1):80-85. en_US
dc.identifier.issn 1532-4117
dc.identifier.uri http://hdl.handle.net/10379/2904
dc.description Journal article en_US
dc.description.abstract The objective of this study was to apply hydraulic and chemical oxygen demand (COD) loading rates at the upper limits of the design criteria for buried sand filters to test the sand filter depth design criteria. Over a 274-day study duration, synthetic effluent with a strength of domestic wastewater was intermittently dosed onto two sand filters of 0.2 m diameter, with depths of 0.3 and 0.4 m. Hydraulic and organic carbon loading rates of 105 L m-2 d-1 and 40 g COD m-2 d-1, respectively, were applied to the filters. The filters did not clog and had good effluent removal capabilities for 274 and 190 days, respectively. However, the 0.3 m-deep filter did experience a reduced performance towards the end of the study period. In the 0.3 and 0.4 m-deep filters, the effluent COD and SS concentrations were less than 86 and 31 mg L-1, respectively, and nitrification was nearly complete in both these columns. Ortho-phosphorus (PO4-P) removal in fine sand and laterite 'upflow' filters, receiving effluent from the 0.3 m-deep filter, was 10% and 44%, respectively. en_US
dc.format application/pdf en_US
dc.language.iso en en_US
dc.relation.ispartof Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering en
dc.subject Intermittent sand filtration en_US
dc.subject Surface clogging en_US
dc.subject Sand depth en_US
dc.subject Domestic wastewater en_US
dc.title Different depth sand filters for laboratory treatment of synthetic wastewater with concentrations close to measured septic tank effluent en_US
dc.type Article en_US
dc.date.updated 2012-07-16T08:45:52Z
dc.identifier.doi DOI 10.1080/10934529.2011.526907
dc.local.publishedsource http://dx.doi.org/10.1080/10934529.2011.526907 en_US
dc.description.peer-reviewed peer-reviewed
dc.contributor.funder |~|
dc.internal.rssid 1148309
dc.local.contact Mark Healy, Dept. Of Civil Engineering, Room E210, Civil Engineering Building, Nui Galway. 5364 Email: mark.healy@nuigalway.ie
dc.local.copyrightchecked Yes
dc.local.version ACCEPTED

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