Environmental-Economic analysis of WWTPs, with different sizes and innovative designs
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Inclou dades d'ús des de 2022
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hdl:2117/333841
Tipus de documentProjecte Final de Màster Oficial
Data2020-07-09
Condicions d'accésAccés obert
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Abstract
This work is aiming to define different pathways that could be followed in order to make
WWTP a more sustainable system. To evaluate the possible innovative solutions to follow it
has been decided to investigate the economical viability and environmental impact of each
plant proposed. Taking into account also two fundamental aspects of a WWTP, the size and
the different streams concentration. The traditional paradigm of WWTP will be proposed to
change through the application of different treatments.
The thesis will first define all the possible technologies and innovation that can be applied to
a WWTP, with a proposal of integration with a renewable power methane system (power to
gas) inside the original WWTP. Firstly, two reference WWTPs will be analysed in terms of
costs and technologies applied. In addition, a third WWTP will be added to understand how
the size influences costs and environment.
Secondly, the carbon redirection and nutrients recovery possibility has been evaluated in the
same terms, to understand if thanks to pre-concentration and ion-exchange unit, it would be
possible to make more sustainable a WWTP. This is possible environmentally but not
economically, since it has revealed way more expensive than the conventional activated
sludge system.
Thirdly, it will be proposed a new and innovative scheme that is aiming to include in one plant
two different treatment, with totally different purposes, but that could be advantageous for
both and especially for the community/municipality. On one side, there will be the clarification
service of water while, on the other side, it will be accomplished the ancillary service of
balancing the grid though the production of renewable methane.
In addition, a great value has been given to all the obtainable products from a WWTP, in
order to create an added value with them for instance, the use of sludge in the production
process of bio-bricks. The final scope is to create a circular economy with all the products
recoverable from a WWTP, since it is where all human wastes is focused.
The major obstacle for the further development of more sustainable WWTPs is represented
by the social acceptance. Indeed, the level of consciousness of the potentiality of a WWTP
are pretty low, and at the same time there is a low acceptance in using waste for the
production of human dedicated products. That's where the main efforts will be needed in the
future. Even if, all the technologies needed for making a more sustainable WWTP are ready,
but the products obtainable from it would never be sold, than all the investment won't make
any profit.
MatèriesSewage -- Analysis, Technological innovations, Aigües residuals -- Anàlisi, Innovacions tecnològiques
TitulacióMÀSTER UNIVERSITARI EN ENGINYERIA DE L'ENERGIA (Pla 2013)
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
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tfm-francesco-berni.pdf | 2,914Mb | Visualitza/Obre |