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Groundwater recharge using primary and secondary effluents

Ho, G. (1981) Groundwater recharge using primary and secondary effluents. In: Whelan, B.R. (ed.), Proceedings of Groundwater Resources of the Swan Coastal Plain, 21 - 22 May, Perth, Western Australia pp. 349-357.

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The disposal of effluents from wastewater treatment plants has met with increasing difficulty as the effluents are viewed to be contributing to potential pollution from nutrients (nitrogen and phosphorus) and pathogenic microorganisms. The effluents can also be considered, suitably treated, as a reliable source of water for agricultural and industrial purposes.

In this paper the case for re-using effluents via soil filtration and groundwater recharge is examined. Advantages and disadvantages are considered in relation to recharging primary and secondary effluents on the Swan Coastal Plain, taking into account control of pollution, availability of renovated water, land-use requirement, suitability of the Swan Coastal Plain and its soils, control of odour and groundwater mounding, and the status of groundwater recharge technology. Two case studies are presented: an inland treatment plant producing secondary effluent and a coastal treatment plan producing primary effluent.

It is concluded that water re-use via groundwater recharge on the Swan Coastal Plain warrants further investigation.

Publication Type: Conference Paper
Murdoch Affiliation: School of Environmental and Life Sciences
Publisher: CSIRO and Water Research Foundation of Australia
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