Home Sweet Home: Setting the Best Thriving Conditions for the Ad Hoc Engineered Microbial Consortium in the Zero Mile System

Author:

Alabiso Annamaria12,Frasca Sara12,Bartolini Matteo2,Congestri Roberta2ORCID,D’Andrea Marco Maria2ORCID,Buratti Giorgio3,Costa Fiammetta3ORCID,Meraviglia Matteo3,Nebuloni Attilio3,Migliore Luciana24ORCID

Affiliation:

1. Ph.D. Program in Evolutionary Biology and Ecology, University of Rome Tor Vergata, 00133 Rome, Italy

2. Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy

3. Department of Design, Polytechnic of Milan, 20133 Milan, Italy

4. Faculty of Psychology, eCampus University, 22060 Novedrate, Italy

Abstract

Wastewaters from household appliances, such as dishwashers and washing machines, are an untapped resource of recoverable water and/or nutrients. The Zero Mile system has been developed to reuse/upcycle dishwasher wastewaters through bioremediation activity carried out by an ad hoc engineered phototrophic/heterotrophic microbial consortium. The choice of both suitable microorganisms for engineering consortia and detailed knowledge on their structure, behaviour and interaction are essential to optimising consortium culture conditions and drive the biofilter container design (structure and topology). To these aims, the effect of abiotic conditions (i.e., irradiance, pH and organic load) on the microbial consortium growth and its capability to survive and thrive in different dishwasher wastewater dilutions have been evaluated. At the same time, the crucial interplay between biological and design research has allowed us to define the characteristics of the biofilter container and plan its development for the industrial application of the Zero Mile system, bringing sustainability benefits as it moves household wastewater from a traditional linear model to a more sustainable, circular approach.

Funder

Ph.D. School of Evolutionary Biology and Ecology at Tor Vergata Rome University

AlgaRes s.r.l.

GT50 s.r.l.

ISCRA CINECA Project Class C on the Galileo100 server

Publisher

MDPI AG

Reference41 articles.

1. The Relevance of Circular Economy Practices to the Sustainable Development Goals;Schroeder;J. Ind. Ecol.,2019

2. UNESCO (2017). The United Nations World Water Development Report, 2017: Wastewater: The Untapped Resource, UNESCO. Available online: https://unesdoc.unesco.org/ark:/48223/pf0000247153.

3. UNESCO (2023). The United Nations World Water Development Report 2023: Partnerships and Cooperation for Water, UNESCO. Available online: https://unesdoc.unesco.org/ark:/48223/pf0000384655.

4. Raschid-Sally, L., and Jayakody, P. (2008). Drivers and Characteristics of Wastewater Agriculture in Developing Countries: Results from a Global Assessment, International Water Management Institute.

5. Ahuja, S. (2014). Water Reclamation and Sustainability, Elsevier.

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