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Paolo Perona   Professor  Institute, Department or Faculty Head 
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Paolo Perona published an article in March 2018.
Top co-authors
Fabian A. Bernhard

3 shared publications

Andrea Semiao

2 shared publications

University of Edinburgh

Fides Izdori

2 shared publications

College of Engineering and Technology, Department of Water Resources Engineering, University of Dar es Salaam, Dar es Salaam P.O. Box 35131, Tanzania

5
Publications
7
Reads
2
Downloads
3
Citations
Publication Record
Distribution of Articles published per year 
(2014 - 2018)
Total number of journals
published in
 
4
 
Publications
Article 0 Reads 3 Citations Resilience of riverbed vegetation to uprooting by flow P. Perona, B. Crouzy Published: 14 March 2018
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, doi: 10.1098/rspa.2017.0547
DOI See at publisher website
CONFERENCE-ARTICLE 7 Reads 0 Citations <strong><span>Empirical characterization of particle settling spatial dynamics in waste stabilization ponds for detectio... Fides Izdori, Andrea Semiao, Paolo Perona Published: 16 November 2017
Proceedings, doi: 10.3390/ecws-2-04947
DOI See at publisher website ABS Show/hide abstract

Wastewater contains a mixture of particles with sizes ranging from 0.001 to more than 1000 microns, which include pathogens, organic and inorganic contaminants. Parasites eggs and cysts present among these particles are removed by sedimentation in Waste Stabilization Ponds (WSP). However, their settling properties are influenced by other wastewater particles which may explain their presence in some effluents even after provision of recommended retention times. Therefore, understanding how wastewater particles behave inside a reactor will enable the understanding of how they influence sedimentation of parasite eggs and how to improve the process. This study assesses and models spatial and seasonal particle size distribution (PSD) dynamics inside a WSP (Buguruni, Tanzania). The 90 m X 183 m X 1.1 m pond was gridded in 30 X 30 m cells and water samples were collected at top and bottom of the cell nodes for dry and rainfall seasons, and the PSD obtained by Malvern mastersizer2000. Results indicate that particles coming into the pond are mainly supracolloidal and settleables with 52.9% and 45.6 % contribution respectively in dry season and 48.9 % and 49.9 % respectively in wet season. Inflow PSD is a unimodal distribution that separates into bimodal PSD of suspended particles and a unimodal PSD of settling particles inside the pond. Stokes equation gives poor estimation of average particle sizes at different locations but results improve when using the modified formula for flocs. Up to 61.5 % and 45.2 % of particles that falls within the size range of helminths eggs (20-80 microns) are found suspended in water during dry and wet seasons respectively, which may account for their presence in some municipal effluents. Studies in spatial characterization of both size and density of primary particles at different location will enable tracing of different pollutants based on their characteristics.

Article 0 Reads 0 Citations Dynamical Behavior and Stability Analysis of Hydromechanical Gates Fabian A. Bernhard, Paolo Perona Published: 01 January 2017
Journal of Irrigation and Drainage Engineering, doi: 10.1061/(ASCE)IR.1943-4774.0001209
DOI See at publisher website
BOOK-CHAPTER 0 Reads 0 Citations Ecomorphodynamic conditions for the emergence of river anabranching patterns B Crouzy, D Wuthrich, P Perona, P D’Odorico Published: 12 August 2014
River Flow 2014, doi: 10.1201/b17133-151
DOI See at publisher website
BOOK-CHAPTER 0 Reads 0 Citations Flow-induced uprooting of young vegetation on river bedforms K Edmaier, B Crouzy, P Perona Published: 12 August 2014
River Flow 2014, doi: 10.1201/b17133-66
DOI See at publisher website
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