Research in the HOAL / Microbiology
17 November 2017

Deep borehole groundwater sampling

Today again Lovrenc Pavlin and Markus Oismüller were operating the groundwater sampling at the...


03 November 2017

Preparing temporal soil net for next season

The temporal soil net is currently prepared and checked for the next installation in the HOAL...


13 October 2017

European network of hydrological observatories (ENOHA)

Recently the homepage of the European network of hydrological observatories - short 'ENOHA'...


22 September 2017

Deep borehole groundwater sampling

Recently Lovrenc Pavlin, new doctoral student from Slovenia in our DK programme, was operating...


30 August 2017

Splash erosion investigations

Nives Balenovic, doctoral student from Croatia working in a cooperation project from IKT...


Science Questions – How can Faecal Pollution be Monitored in Real Time?

Microbial water safety management can be enhanced by real time detection of faecal pollution from enzymatic activity. Such measurements will also shed light on microbial transport processes at the catchment scale.

The HOAL is an ideal test bed for such automated measuring devices due to its highly dynamic runoff, sediment concentrations and bacterial contamination from manure.

Four enzymatic analysers with two different designs have been set up at the catchment outlet. The devices sample stream water at intervals of 1 or 3 hours. The results for different setups are compared with laboratory analyses in order to optimise the strengths of the instruments in a real time mode.

Interpretation of the faecal indicators in the context of physical and chemical parameters for events with contrasting characteristics (e.g. fast and short response times, dry and wet antecedent soil moisture) sheds light on microbial pollution processes. Manure events and the fate of faecal pollution can be identified from the time dynamics of the indicator.

water safetey management