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Solar evaporation of liquid effluent from composting toilets in cool temperate climates


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Holman, DP 2005 , 'Solar evaporation of liquid effluent from composting toilets in cool temperate climates', Coursework Master thesis, University of Tasmania.

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This thesis investigates the design of a solar powered evaporator aimed at reducing
visual intrusion of composting toilet infrastructure on the natural landscape.
A series of tests were undertaken beginning in the laboratory, progressing to outdoor
conditions at the University ofTasmania in Hohart and culminating in a field test in
the Mt Field National Park in southern Tasmania. This field test involved the
substitution of the field test evaporator for an existing unit at the Government Huts
composting toilet facility. A method for gathering the data to enable matching of
evaporator size to effluent output rate was also evaluated.
The performance related objectives were realized by increasing evaporative
efficiency over the existing National Parks and Wildlife Service (NPWS) design and
achieving flexibility in siting through good evaporative performance in cold and
diffiise light conditions. Over a twelve month period of operation in an alpine
location the 1.5m x 1.5m solar evaporator dealt with all the liquid effluent from two
public composting toilets. A method for gathering the necessary empirical evidence
to properly match evaporator size to toilet loading was also tested at Mt Field
resulting in the calculation of average figures for the volume of liquid expelled to the
evaporator per toilet use.

Item Type: Thesis - Coursework Master
Authors/Creators:Holman, DP
Keywords: Solar energy, Solar collectors, Sewage, Toilets
Copyright Holders: The Author
Copyright Information:

Copyright 2005 the Author - The University is continuing to endeavour to trace the copyright
owner(s) and in the meantime this item has been reproduced here in good faith. We
would be pleased to hear from the copyright owner(s).

Additional Information:

Available for library use only and copying in accordance with the Copyright Act 1968, as amended. Thesis (MEnvMgt)--University of Tasmania, 2005. Includes bibliographical references

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