On-site Wastewater Treatment Systems as Sources of Phosphorus and other Pollutants in Rural Catchments: Characteristics and Tracing Approaches

Richards, Samia

Publication date

January 2017

Abstract

This thesis investigated the influence of septic tanks (ST) on stream water quality. Characterisation of septic tank effluent (STE) revealed that STE were enriched in phosphorus (P), nitrogen (N), organic matter (OM) and metals relative to stream waters and large proportions of these parameters were present in the soluble reactive forms. Human factors such as tank design, number of users, dishwasher use and infrequent desludging significantly (P<0.05) influenced effluent quality. ST that received roof runoff had reduced effluent retention time, while infrequent desludging was linked to increased OM, bacteria and P concentration in the effluent. Tanks that served larger numbers of people had elevated microbial abundance, P and N concentratio...

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On-site Wastewater Treatment Systems as Sources of Phosphorus and other Pollutants in Rural Catchments: Characteristics and Tracing Approaches

Abstract

Extracted data

On-site Wastewater Treatment Systems as Sources of Phosphorus and other Pollutants in Rural Catchments: Characteristics and Tracing Approaches

Abstract

Extracted data

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