Next Article in Journal
A Novel Physically Based Distributed Model for Irrigation Districts’ Water Movement
Next Article in Special Issue
Leakage Management and Pipe System Efficiency. Its Influence in the Improvement of the Efficiency Indexes
Previous Article in Journal
The Cross-Dike Failure Probability by Wave Overtopping over Grass-Covered and Damaged Dikes
Article

Energy Recovery Potential in Industrial and Municipal Wastewater Networks Using Micro-Hydropower in Spain

1
Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin D02 PN40, Ireland
2
Department of Agronomy, Campus Rabanales, University of Cordoba, Edif. Da Vinci, 14071 Cordoba, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Giuseppe Mancini
Water 2021, 13(5), 691; https://doi.org/10.3390/w13050691
Received: 8 February 2021 / Revised: 24 February 2021 / Accepted: 28 February 2021 / Published: 4 March 2021
The use of micro-hydropower (MHP) for energy recovery in water distribution networks is becoming increasingly widespread. The incorporation of this technology, which offers low-cost solutions, allows for the reduction of greenhouse gas emissions linked to energy consumption. In this work, the MHP energy recovery potential in Spain from all available wastewater discharges, both municipal and private industrial, was assessed, based on discharge licenses. From a total of 16,778 licenses, less than 1% of the sites presented an MHP potential higher than 2 kW, with a total power potential between 3.31 and 3.54 MW. This total was distributed between industry, fish farms and municipal wastewater treatment plants following the proportion 51–54%, 14–13% and 35–33%, respectively. The total energy production estimated reached 29 GWh∙year−1, from which 80% corresponded to sites with power potential over 15 kW. Energy-related industries, not included in previous investigations, amounted to 45% of the total energy potential for Spain, a finding which could greatly influence MHP potential estimates across the world. The estimated energy production represented a potential CO2 emission savings of around 11 thousand tonnes, with a corresponding reduction between M€ 2.11 and M€ 4.24 in the total energy consumption in the country. View Full-Text
Keywords: wastewater treatment plants; industries; fish farms; renewable energy; hydropower potential wastewater treatment plants; industries; fish farms; renewable energy; hydropower potential
Show Figures

Figure 1

MDPI and ACS Style

Mérida García, A.; Rodríguez Díaz, J.A.; García Morillo, J.; McNabola, A. Energy Recovery Potential in Industrial and Municipal Wastewater Networks Using Micro-Hydropower in Spain. Water 2021, 13, 691. https://doi.org/10.3390/w13050691

AMA Style

Mérida García A, Rodríguez Díaz JA, García Morillo J, McNabola A. Energy Recovery Potential in Industrial and Municipal Wastewater Networks Using Micro-Hydropower in Spain. Water. 2021; 13(5):691. https://doi.org/10.3390/w13050691

Chicago/Turabian Style

Mérida García, Aida, Juan A. Rodríguez Díaz, Jorge García Morillo, and Aonghus McNabola. 2021. "Energy Recovery Potential in Industrial and Municipal Wastewater Networks Using Micro-Hydropower in Spain" Water 13, no. 5: 691. https://doi.org/10.3390/w13050691

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop